Blog Ideas for Pressure Washing Companies

Most pressure washing operators treat blogs as afterthoughts, generic posts about “spring cleaning tips” that vanish into search oblivion. The shops booking 40+ jobs monthly publish content targeting homeowners at specific decision points: researching surface damage, comparing DIY costs, or vetting contractors after a bad experience. These 10 angles turn your blog into a lead engine.

Pressure washing operates in a narrow margin business where residential jobs average $200-400 and commercial contracts require months of relationship-building. Most operators rely on door-hangers and Facebook ads, then wonder why their website gets traffic but no calls. The gap is content: homeowners search “black mold on vinyl siding” or “driveway cleaning cost” 60-90 days before they book, and if your site doesn’t answer those queries with specificity, they’ll call whoever does.

This list targets the 10 blog formats that capture high-intent searches, establish technical authority, and pre-sell your process before a prospect ever picks up the phone. Each idea maps to a stage in the pressure washing buyer journey – from early research to vendor comparison, and includes the exact execution steps to rank locally and convert readers into scheduled estimates.

1. Surface-Specific Damage Identification Guides

Homeowners can’t articulate what’s wrong with their property, they see “black stuff on the deck” or “stains on concrete” and don’t know if it’s mold, mildew, algae, or oxidation. When you publish diagnostic guides that show close-up photos of each contaminant with correct terminology, you capture early-stage searches and position yourself as the expert who understands the problem. This matters because pressure washing buyers are risk-averse: they’ve heard horror stories about damaged siding or etched concrete, so they vet contractors heavily. A blog that demonstrates material knowledge reduces perceived risk and makes your estimate call feel like a consultation, not a sales pitch. Over 12 months, these guides compound into your highest-traffic pages and generate qualified leads who’ve already self-educated on what they need.

How to execute:

1. Photograph 8-10 common contaminants on surfaces you service (algae on vinyl, efflorescence on brick, oil stains on driveways) with macro lens or phone close-up mode
2. Write one 1,200-word guide per surface type: “What’s Growing on Your [Vinyl Siding/Wood Deck/Concrete Driveway]: A Visual Guide” with embedded photos and correct terms
3. Include a symptoms-to-solution table: “If you see [description], it’s [contaminant], caused by [condition], requires [PSI range/cleaning method]”
4. End each guide with “Schedule a free surface assessment” CTA linking to your booking page, not a generic contact form

Expected result: Each guide ranks for 15-25 long-tail local searches within 90 days and generates 3-6 qualified estimate requests monthly per post.

2. Transparent Cost Breakdown Posts by Job Type

Price is the first filter in pressure washing decisions, but most companies hide pricing behind “call for quote” walls, forcing prospects to contact 5-6 competitors just to establish a range. When you publish honest cost breakdowns – “Driveway Cleaning Cost in [City]: What 47 Jobs Taught Us”, you capture bottom-of-funnel searches and pre-qualify leads. Homeowners searching “[service] cost near me” are 7-14 days from booking; if your post shows $180-280 for a standard driveway with variables explained (square footage, stain severity, sealing add-on), they’ll call you first because you’ve already answered their primary objection. This works because pressure washing is a grudge purchase: buyers want it done right but cheap, and transparency signals you won’t upsell aggressively on-site. The business impact is higher close rates; prospects who read your pricing post arrive at estimates with realistic budgets and fewer “let me think about it” stalls.

How to execute:

1. Pull data from your last 50 residential jobs: calculate average price by service type (driveway, house wash, deck, fence) and note the 3 variables that increase cost most
2. Write one post per service: “[Service] Cost in [City/County]: Real Numbers from [Current Year]” with ranges, not single prices, and explain what drives high vs. low end
3. Add a pricing calculator or tiered table: “Basic [Service]: $X-Y, includes [scope]. Premium: $Y-Z, adds [sealant/treatment/extra rinse]”
4. Insert FAQ section addressing “Why do some companies charge $99?” and “What’s not included in base price?” to capture comparison-shoppers

Expected result: Cost posts generate 40-60% of your estimate requests within 6 months and increase close rate by 15-20% due to pre-qualified expectations.

3. Before/After Case Studies with Problem Narratives

Generic before/after galleries show clean results but don’t tell the story that converts: what was the customer’s initial problem, why did they wait, what made them finally call, and what changed after the job. When you turn your best transformations into narrative case studies, “How We Saved a $340K Home Sale by Removing 8 Years of Algae in One Afternoon”, you give prospects a mirror to see themselves in. Pressure washing buyers procrastinate for months because the problem feels cosmetic until it becomes urgent (HOA violation, listing a house, hosting an event). A case study that opens with that urgency, walks through your process with specifics (equipment used, hours on-site, challenges solved), and closes with the outcome (sale went through, neighbors asked for referrals) does the emotional work your service photos alone can’t. These posts rank for hyper-specific searches like “pressure wash before selling house” and convert because they prove you understand the stakes beyond “making things look nice.”

How to execute:

1. Identify 6 jobs from the past year with compelling backstories: urgent timelines, severe contamination, or high-value outcomes (home sale, event hosting, avoided replacement cost)
2. Write 800-1,000 words per case study: open with customer’s problem and delay reason, detail your diagnostic process and equipment choices, show 3-4 progress photos, close with quantified result
3. Get customer permission and use real first names or initials with neighborhood (not full address): “Jennifer in Maplewood needed her deck restored before her daughter’s graduation party”
4. Tag each post with the service type and problem keyword: “algae removal,” “pre-sale cleaning,” “HOA compliance,” “oil stain removal” for search targeting

Expected result: Case studies convert at 8-12% (vs. 2-4% for generic service pages) and generate 2-3 qualified leads per post monthly after 4-6 months indexed.

4. DIY vs. Professional Comparison Posts

Half your potential customers rent a Home Depot pressure washer before they call you, then realize they’re in over their head after two hours of uneven results or a damaged surface. When you publish honest DIY comparison content, “We Rented a Gas Pressure Washer and Cleaned Our Own Driveway: Here’s What Happened”, you intercept that research phase and position professional service as the efficient choice, not an indulgence. This works because pressure washing looks deceptively simple in YouTube videos, but homeowners underestimate the learning curve (nozzle selection, distance, overlap technique) and the hidden costs (rental fees, wasted weekends, potential damage). A post that walks through the true DIY cost and time investment, acknowledges when it makes sense (small deck, annual maintenance), and shows where pros deliver ROI (severe stains, delicate surfaces, time savings) builds trust instead of defensiveness. The business impact is converting fence-sitters who were leaning DIY but need permission to hire out.

How to execute:

1. Rent a consumer-grade pressure washer and document a real DIY attempt on your own property or a friend’s: take photos, track time, note mistakes, calculate total cost including rental, gas, and cleaning solution
2. Write a 1,400-word post structured as: “The DIY Experiment,” “What We Learned,” “When DIY Makes Sense,” “When to Call a Pro” with honest pros/cons in each section
3. Include a cost comparison table: DIY total (rental $80, solution $25, 6 hours labor at $30/hr opportunity cost = $285) vs. professional quote ($220, 1.5 hours, guaranteed results)
4. Add embedded video clips of common DIY mistakes: streaking from inconsistent speed, gouged wood from wrong nozzle, missed spots from poor overlap

Expected result: DIY comparison posts rank for high-volume searches like “rent pressure washer or hire” and convert 6-9% of readers into estimate requests within 30 days.

5. Seasonal Maintenance Calendars by Surface

Pressure washing demand spikes in spring and crashes in winter, leaving operators scrambling for off-season work. When you publish maintenance calendars that prescribe year-round care schedules, “The 12-Month Pressure Washing Calendar for [Region] Homeowners”; you educate customers into booking multiple times annually instead of once every 3-4 years. Homeowners don’t know that vinyl siding should be cleaned twice yearly in humid climates or that concrete sealing requires annual reapplication after washing. A calendar post that breaks down what to clean each season (spring: siding and gutters, summer: decks and patios, fall: driveways and walkways, winter: prep and inspection) with reasons tied to local weather patterns (pollen in April, algae growth in July humidity, leaf stain prevention in October) turns you into their maintenance advisor. This matters because repeat customers are 4-5x cheaper to book than new ones, and a calendar gives you permission to send quarterly reminders without feeling pushy.

How to execute:

1. Map your service area’s weather patterns to contamination cycles: when does pollen peak, when does algae grow fastest, when do leaves stain, when does ice melt leave salt residue
2. Create a 12-month calendar graphic (Canva template) with one primary service per month and 2-3 bullet reasons: “March: House Washing – remove winter grime before pollen coats surfaces, prep for spring entertaining”
3. Write 200-300 words per quarter explaining the “why” behind the timing: “Summer humidity accelerates algae growth on north-facing siding; cleaning in June prevents deep root systems that require harsher chemicals by August”
4. Embed a “Schedule Your [Season] Service” CTA after each quarter with direct booking link, and offer a 10% discount for booking the next season’s service during current appointment

Expected result: Calendar posts generate 15-20% of customers booking a second service within 12 months and smooth revenue across slower seasons.

6. Equipment and Technique Explanation Posts

Pressure washing buyers fear two outcomes: no visible improvement or catastrophic damage. When you publish detailed explanations of your equipment choices and technique, “Why We Use 3,000 PSI for Driveways But Never for Vinyl Siding”; you demystify the process and differentiate yourself from low-price competitors who show up with one machine and one setting for every surface. Homeowners searching “can pressure washing damage siding” or “what PSI for concrete” are in the consideration phase, vetting contractors for competence. A post that explains PSI ranges, nozzle color codes, soft-wash vs. high-pressure applications, and surface-specific risks shows you’re not just a guy with a wand but a technician who understands material science. This builds confidence that you won’t strip paint, etch concrete, or force water behind siding; the horror stories they’ve read on neighborhood Facebook groups. The business impact is fewer price-only shoppers and more quality-focused leads who value expertise.

How to execute:

1. Create a reference post: “Pressure Washing Equipment Guide: What We Use and Why” with photos of your machines, surface cleaners, and nozzle sets labeled with specs
2. Write 300-400 words per surface category explaining the decision tree: “Vinyl siding: 1,500-2,000 PSI, 40° nozzle, bottom-up application to prevent water intrusion. Concrete: 3,000-3,500 PSI, 15° nozzle, surface cleaner for even results”
3. Add a “Common Damage Scenarios” section with photos of what happens when wrong equipment is used: splintered wood from too-high PSI, streaked siding from too-close application, incomplete cleaning from too-low pressure
4. Include a comparison table: “What Box Store Rentals Use vs. What Pros Use” showing PSI, GPM, and heat capability differences

Expected result: Equipment posts rank for technical searches and increase average estimate value by 12-18% as readers self-select for quality over price.

7. Local Environmental Compliance and Runoff Posts

Most pressure washing operators ignore wastewater regulations until they get a municipal violation or lose a commercial contract over non-compliance. When you publish content about proper runoff management, “How [City] Pressure Washing Companies Should Handle Wastewater (And Why It Matters)”, you position yourself as the compliant, responsible operator in a market where most competitors cut corners. This matters because commercial property managers and HOAs increasingly require proof of EPA compliance, and residential customers in environmentally-conscious neighborhoods care about where contaminated water goes. A post explaining stormwater regulations, containment methods (berms, vacuums, filtration), and biodegradable detergent choices signals professionalism and opens doors to higher-value contracts that require insurance and compliance documentation. The business impact is access to commercial work and premium residential clients who’ll pay 20-30% more for verified responsible practices.

How to execute:

1. Research your municipality’s stormwater regulations: contact local environmental services or pull ordinances from city website, note which contaminants (oil, grease, heavy metals, phosphates) can’t enter storm drains
2. Write a 1,000-word post: “Pressure Washing Wastewater Rules in [County]: What Homeowners and Contractors Need to Know” explaining regulations in plain language with examples
3. Document your compliance process with photos: containment berms, vacuum recovery systems, filtration setup, approved disposal methods, and biodegradable product labels
4. Create a “Certified Compliant” badge for your site and add a PDF download: “Our Environmental Compliance Process” that commercial clients can attach to vendor approval forms

Expected result: Compliance posts generate 4-7 commercial RFPs annually and differentiate you in bids where 60-70% of competitors can’t document proper practices.

8. Damage Prevention and Warranty Posts

The biggest objection in pressure washing sales is fear of damage, especially for older homes with original siding or recently stained decks. When you publish transparent content about what you warranty and what you don’t, “What Our Pressure Washing Warranty Covers (And What Voids It)” – you address the fear head-on and set realistic expectations that prevent post-job disputes. Homeowners need to know you’ll fix streaking or missed spots but won’t be liable for pre-existing rot you uncover or failing caulk that was already compromised. A detailed warranty post that explains your pre-job inspection process, documents surface conditions with photos, and outlines coverage (re-clean within 30 days, repair accidental damage to sound materials) and exclusions (pre-existing damage, surfaces beyond recommended lifespan) builds trust and protects you legally. This works because it shows you’re confident in your work but honest about limitations – the opposite of fly-by-night operators who promise everything and disappear after payment.

How to execute:

1. Draft a written warranty document: 30-day satisfaction guarantee on cleaning results, immediate repair of any damage caused by our equipment to sound materials, photo documentation of pre-existing conditions, exclusions for surfaces with prior damage
2. Write a 900-word blog post explaining each warranty component with examples: “We’ll re-clean any areas with remaining stains at no charge, but we can’t warranty against algae regrowth on north-facing surfaces in shaded, humid conditions; that’s biology, not our work quality”
3. Include a “Pre-Job Inspection Checklist” section showing what you document: loose siding, cracked caulk, rotted wood, failing paint, existing stains that may not fully remove
4. Add customer testimonials specifically about your warranty follow-through: “They came back twice to get the deck perfect, no hassle” builds credibility

Expected result: Warranty posts reduce estimate-to-booking drop-off by 10-15% and cut post-job disputes by 40-50% through clear expectation-setting.

9. Neighborhood-Specific Service Area Posts

Generic “We serve [City]” pages don’t rank because every competitor has the same page. When you create individual posts for each neighborhood you service, “Pressure Washing in [Specific Neighborhood]: What [Subdivision] Homeowners Should Know”; you dominate hyper-local searches and speak directly to community-specific concerns. A post about pressure washing in a historic district addresses different issues (protecting original brick, navigating preservation rules) than one about a 1990s vinyl-sided subdivision (algae on north exposures, deck maintenance). This works because homeowners search “[my neighborhood] pressure washing” when they see neighbors getting work done or receive an HOA notice, and a post that references their specific streets, common home styles, and local environmental factors (heavy tree cover, proximity to lake, clay soil staining) feels personally relevant. The business impact is higher conversion because you’ve already demonstrated you understand their property type and local conditions before they call.

How to execute:

1. Identify your 8-10 highest-revenue neighborhoods from past jobs and map common characteristics: home age, siding type, lot features (wooded, lakefront, high-traffic streets), HOA requirements
2. Write one 700-900 word post per neighborhood: “[Neighborhood] Pressure Washing: A Guide for [Subdivision] Homeowners” opening with local detail (built in 1995, mostly vinyl siding, mature oak trees)
3. Include a “Common Issues We See in [Neighborhood]” section: “North-facing homes near the greenbelt develop heavy algae by July; driveways near the clay retention pond stain orange after rain”
4. Add 3-4 before/after photos from actual jobs in that neighborhood (with permission) and mention cross-streets without full addresses: “This home on Oak near Maple had 6 years of buildup”

Expected result: Neighborhood posts rank within 60-90 days and generate 3-5 leads monthly per post from hyper-local searches with 15-20% higher close rates.

10. Competitor Comparison and “What to Ask” Posts

Homeowners contact 3-5 pressure washing companies before booking, and they don’t know what questions separate pros from hacks. When you publish a “What to Ask Before Hiring a Pressure Washing Company” post that educates buyers on vetting criteria, insurance coverage, equipment specs, surface-specific experience, wastewater handling – you control the evaluation framework and make your competitors look unprepared. This works because most low-price operators can’t answer technical questions about PSI ranges, nozzle selection, or runoff compliance, so when your blog teaches customers to ask those questions, you’ve pre-sold your expertise. A prospect who reads your post and then calls three competitors will notice who fumbles the answers, and you’ll win the bid even if you’re 15-20% higher. The business impact is competing on value instead of price and attracting customers who’ve self-educated on quality markers.

How to execute:

1. List 12-15 questions homeowners should ask any pressure washing contractor: “Are you insured for property damage? What PSI will you use on my siding? How do you handle wastewater? Can you provide references from my neighborhood?”
2. Write a 1,200-word post structured as: “10 Questions to Ask Before Hiring a Pressure Washing Company in [City]” with 100-150 words per question explaining why it matters and what good vs. bad answers sound like
3. Add a “Red Flags” section: “If a contractor can’t explain their equipment, quotes over the phone without seeing the property, or doesn’t mention insurance, walk away”
4. Include a downloadable PDF checklist: “Your Pressure Washing Contractor Vetting Guide” that requires email opt-in, feeding your follow-up sequence

Expected result: Comparison posts generate 25-35 email opt-ins monthly and increase win rate on competitive bids by 20-25% as prospects use your criteria to evaluate all contractors.

How to Sequence These for Pressure Washing Companies

Start with items 2 and 3, cost breakdowns and case studies, because they convert immediately and prove ROI while you build out longer-term content. A transparent pricing post ranks within 30-45 days and starts generating estimate requests before you’ve finished writing other posts. Case studies require minimal new work (you’re documenting jobs you’ve already completed) and convert at 3-4x your service pages. Once those are live and driving leads, layer in items 1 and 4; surface damage guides and DIY comparisons, which capture top-of-funnel searches and feed your email list. These take 90-120 days to rank but become your highest-traffic pages by month six.

After you’ve got conversion and traffic foundations, add items 9 and 10 – neighborhood posts and competitor comparisons, to dominate local search and control the evaluation process. Neighborhood posts are fastest to rank (60-90 days) because there’s less competition for hyper-local terms. Save items 5, 6, 7, and 8, maintenance calendars, equipment explanations, compliance, and warranties – for months 4-6; these are authority-builders that support higher pricing and commercial work but don’t drive immediate leads. The hardest is item 7 (compliance) because it requires regulatory research and process documentation, but it’s your only path to commercial contracts and premium residential clients who care about responsible practices. Publish two posts monthly and you’ll have all ten live within five months, with the early posts already generating ROI before you finish the sequence.

Common Mistakes to Avoid

1. Writing for search engines instead of homeowners at decision points. Posts stuffed with keywords like “best pressure washing [city]” fifteen times don’t rank and don’t convert because they don’t answer the actual questions buyers ask. Google prioritizes content that satisfies search intent, which means your post about “driveway cleaning cost” needs real numbers, variables, and examples, not keyword-stuffed fluff that says nothing.
2. Publishing generic tips that apply to any service business. “5 Reasons to Hire a Professional” or “How to Choose a Contractor” posts are invisible in search because 10,000 other service companies have identical content. Pressure washing buyers search for surface-specific problems (algae on siding, oil stains on concrete) and local concerns (neighborhood names, regional contaminants), so generic posts waste your effort and never rank.
3. Hiding pricing information to force phone calls. Operators fear that transparent pricing will cost them jobs, but the opposite is true: homeowners who can’t find pricing on your site just call your competitors instead. A cost breakdown post with ranges and variables pre-qualifies leads, reduces tire-kickers, and increases close rates because prospects arrive at estimates with realistic budgets instead of sticker shock.
4. Skipping photo documentation and using stock images. Pressure washing is a visual service, and homeowners need proof you’ve handled properties like theirs. Stock photos of generic clean driveways signal you’re not a real operator, while before/after shots from your actual jobs in recognizable neighborhoods build instant credibility. Take photos at every job; they’re your most valuable content asset and cost nothing but habit.
5. Writing once and never updating or interlinking. A blog post published in January 2026 and never touched again loses ranking as competitors publish fresher content. Set quarterly reminders to update your top posts with new case studies, current-year pricing, and recent photos. Add internal links from new posts to older ones (link your neighborhood post to your cost breakdown, your case study to your warranty explanation) to distribute authority and keep readers on your site longer.
6. Ignoring mobile formatting and page speed. Over 70% of pressure washing searches happen on mobile; homeowners standing in their driveway googling “concrete cleaning near me” – and if your blog takes 6 seconds to load or has tiny text and huge uncompressed images, they’ll bounce before reading. Compress all photos to under 200KB, use legible font sizes (16px minimum), and break content into short paragraphs with frequent subheadings for scanability on small screens.

FAQs

How long does it take for pressure washing blog posts to start generating leads?

Cost breakdown and case study posts can drive estimate requests within 30-45 days if you target low-competition local keywords like “[neighborhood] pressure washing cost” or “[surface type] cleaning [city].” Surface damage guides and DIY comparison posts take 90-120 days to rank because they target higher-volume searches with more competition. Neighborhood-specific posts rank fastest (60-90 days) because there’s minimal competition for hyper-local terms. The key is publishing consistently, two posts monthly; so you’ve early converters (pricing, case studies) generating ROI while your longer-term content (guides, comparisons) builds traffic. Most operators see their first blog-sourced lead within 60 days and 8-12 monthly leads by month six if they follow this sequence and promote posts through email and social channels.

Should pressure washing blogs include pricing or just say “call for quote”?

Always include pricing ranges with variables explained. Homeowners searching “driveway cleaning cost” or “house washing price” are bottom-of-funnel – they’re 7-14 days from booking and comparing 4-6 companies. If your blog says “call for quote,” they’ll just read your competitor’s post that shows $180-280 for a standard driveway and call them instead. Transparent pricing pre-qualifies leads (tire-kickers who want $99 won’t waste your time) and increases close rates because prospects arrive at estimates with realistic budgets. The trick is showing ranges, not single prices: “$220-340 depending on square footage, stain severity, and whether you add sealing” gives enough information to be useful without boxing you into a number. Include a disclaimer that prices are estimates and final quotes require on-site assessment, but give real numbers from your actual job history.

What’s the ideal length for pressure washing blog posts?

Aim for 1,000-1,500 words for most posts, which gives you room to cover a topic thoroughly without padding. Cost breakdown posts can be 800-1,000 words if you include detailed tables and examples. Case studies work at 700-900 words with multiple photos breaking up text. Surface damage guides and equipment explanation posts need 1,200-1,600 words to cover multiple scenarios with enough detail to rank for long-tail searches. The length matters less than depth – Google ranks content that fully answers the search query, so a 900-word post with specific numbers, photos, and useful takeaways will outrank a 2,000-word post full of generic advice. Use short paragraphs (2-4 sentences), frequent subheadings every 150-200 words, and bullet lists for scanability. Mobile readers will bounce from walls of text even if the information is good.

How do I get customers to actually read my blog instead of just calling?

You don’t want them to read instead of calling, you want them to read and then call more qualified. Link to your best posts from your homepage, service pages, and estimate confirmation emails. When someone requests a quote, send an automated email: “While you wait for our response, here’s what to expect: [link to case study similar to their job].” Add a blog section to your monthly email newsletter with one featured post. Share posts in local Facebook groups when someone asks “Anyone know a good pressure washer?”, don’t spam, just answer the question with “Here’s what to look for: [link]” and mention you’re available. The goal isn’t massive traffic; it’s getting 200-400 monthly visitors who are actively researching pressure washing, with 6-10% converting to estimate requests. That’s 12-40 qualified leads monthly from content that works 24/7 without ad spend.

Can I hire someone to write these posts or do I need to write them myself?

You can hire a writer, but you must provide the raw material, pricing data from your jobs, photos from your projects, specific customer problems you’ve solved, local neighborhood details, and technical process explanations. A freelance writer can’t invent the credibility that makes these posts convert; they can only structure and polish the expertise you provide. Expect to spend 45-60 minutes per post doing a voice-recorded brain dump answering the writer’s questions, then 20-30 minutes reviewing and adding details to the draft. Budget $150-250 per post for a decent writer who understands local service businesses, or $75-125 for a VA who can follow your outline and insert your provided details. The DIY path takes 2-3 hours per post initially (faster as you build a template) but ensures authentic voice and accurate technical details. Many operators write their first 3-4 posts to establish voice and process, then hand off to a writer with those as examples.

How do I measure if my pressure washing blog is actually working?

Track four metrics in Google Analytics: organic search traffic to blog posts, time on page (should be 2+ minutes for posts over 1,000 words), conversion rate from blog to estimate request form, and revenue from blog-sourced leads. Set up goal tracking for your estimate request form and note in your CRM how each lead found you, when they say “I read your article about driveway costs,” tag that lead as blog-sourced. Within 90 days you should see 100-200 monthly blog visitors; by month six, 400-800 visitors with 6-10% converting to estimate requests (24-80 leads). Calculate customer lifetime value: if your average job is $280 and 30% of customers book annually, a customer is worth $840 over three years. If your blog generates 30 leads monthly at 40% close rate, that’s 12 jobs monthly or $3,360 in immediate revenue and $10,080 in three-year value; from content that costs you 6 hours monthly to maintain and update.