| Most San Antonio homes need professional window cleaning three to four times per year. Our local combination of cedar pollen, hard water from the Edwards Aquifer, and intense summer heat creates buildup faster than most U.S. cities. Below, we break down exactly when to schedule each cleaning and why it matters for your glass, your home’s value, and your comfort. |
The Short Answer: 3 to 4 Times Per Year (Minimum)
The standard recommendation across the industry is twice a year. San Antonio homeowners need more than that. After more than 20 years of cleaning windows across this city, we can tell you that our combination of heavy pollen seasons, mineral-rich water, and intense summer heat means windows accumulate grime faster than in homes in milder climates.
Three to four professional cleanings per year keep glass clear, prevent long-term mineral damage, and maintain your home’s curb appeal. Some situations call for even more frequent attention. We offer monthly, quarterly, and annual recurring service packages to help our customers stay on schedule without having to think about it.
| Window Type | Baseline Frequency | High-Exposure Frequency |
| Exterior windows | Every 3 months | Every 1-2 months |
| Interior windows | Every 6 months | Every 3 months |
| Screens and tracks | Every 6 months | Every 3-4 months |
| Windows near construction | Every 4-6 weeks | Every 2-4 weeks |
| Storefront / HOA-governed | Monthly to quarterly | Per HOA/lease terms |
Why San Antonio Windows Get Dirty Faster Than Most
San Antonio presents a unique set of challenges for glass surfaces. No single factor is the problem. It is the combination of all of them, rotating through the calendar with almost no break.
Pollen. Cedar pollen dominates from December through February, followed immediately by oak pollen from March through May. During peak weeks, San Antonio’s NAB-accredited pollen station has recorded oak counts exceeding 7,000 grains per cubic meter. That yellow-green film on your car, your patio furniture, and your windows is not your imagination.
Hard water. The Edwards Aquifer supplies most of our tap water and is classified as very hard, at 15 to 20 grains per gallon. Sprinkler overspray, rain runoff from limestone-dusted roofs, and even morning dew leave behind white calcium and magnesium deposits that bond to glass over time. Hard water stains are one of the most common concerns our customers ask about, and for good reason. Left too long, those deposits etch permanently into the glass.
Summer heat and dust. June through August brings temperatures that bake dust, pollen residue, and mineral deposits onto glass surfaces. Once those contaminants are heat-set, they resist casual cleaning. South Texas heat is relentless, and it turns a thin film of grime into a stubborn layer within weeks.
Storm seasons. San Antonio averages roughly 32 inches of rain per year, with May averaging 3.66 inches and September averaging 3.39 inches. Those two months represent the peak storm-window period when mud splatter, debris, and mineral-laden rainwater coat exterior glass.
Construction dust. Growing suburbs along the 1604 corridor, Alamo Ranch, and the Far West Side produce constant airborne particulate from new development. Homes within a mile of active construction sites need more frequent cleaning.
San Antonio Window Cleaning Calendar: Season by Season
Winter (December Through February): Cedar Pollen Season
Cedar fever season starts in December and runs through February. The fine, powdery pollen settles on every outdoor surface, including windows. Most homeowners notice it on their vehicles first, but glass accumulates the same layer.
Schedule a professional window cleaning in late February once cedar counts drop. This removes the full winter’s buildup before oak season arrives. If you handle residential window cleaning on this schedule, you start spring with a clean baseline.
Spring (March Through May): Oak Pollen and Storm Season
Oak pollen replaces cedar almost immediately in March and peaks through April. May adds heavy rainfall and storm activity. The combination of sticky pollen and wind-driven rain creates a stubborn film that clings to glass.
Clean in mid-to-late May after the worst of both threats has passed. Spring is also a good time to have screens and tracks cleaned. Pollen accumulates in those channels and transfers back onto the glass every time you open a window. We include basic dusting of tracks and screens with every window cleaning and offer deep track and screen cleaning as an add-on for homes that need it.
Summer (June Through August): Dust, Heat, and UV Exposure
Summer heat bakes whatever is already on your windows into a harder layer. Dust from dry conditions and construction zones adds to the problem. UV exposure also degrades window seals over time, and dirty glass amplifies heat absorption.
Schedule a cleaning in July or August. This is the season when we see the most hard-water etching from sprinkler systems running on daily cycles. We use pure-water-fed pole systems that remove mineral deposits without leaving the residue that tap water creates. For interior glass, our process starts with a strip washer and soap solution, followed by a synthetic scrub pad, then a squeegee finish with detailed frame and edge wiping.
Fall (September Through November): Second Storm Season and Pre-Holiday Prep
September brings a second spike in rainfall and storm activity. October and November are the ideal window for pre-holiday cleaning. Spring and the weeks before the holidays are consistently our busiest times of the year, and for good reason. These are the moments when clean windows make the biggest difference for curb appeal and comfort.
Clean in late October to catch storm residue and prepare for the holiday stretch. Pair this with gutter cleaning and house washing to address the full exterior before the end of the year. We offer bundle discounts when you combine multiple services in a single visit.
| Season | Primary Threat | Best Time to Clean | Priority Level |
| Winter (Dec-Feb) | Cedar pollen | Late February | High |
| Spring (Mar-May) | Oak pollen + storms | Mid-to-late May | High |
| Summer (Jun-Aug) | Dust + heat baking | July or August | Medium |
| Fall (Sep-Nov) | Storm deposits + holiday prep | Late October | Medium-High |
Signs Your San Antonio Windows Need Cleaning Now
You do not always need to wait for the next scheduled cleaning. These signs mean your windows need attention sooner.
A visible haze or film on the glass, especially when sunlight hits at an angle. White or chalky mineral spots from sprinkler overspray or hard water runoff. Yellow-green pollen residue along the edges and corners of window frames. Noticeably reduced natural light inside your home, making rooms feel darker than usual. Sticky tree sap spots, particularly under live oaks and pecans. Dark mildew or mold growth in window tracks and along the rubber seal.
If you notice two or more of these, the buildup is already affecting your glass. Waiting longer increases the risk of permanent damage. One thing we frequently encounter is customers who assume their windows need replacing when the real issue is failed window seals with debris trapped between the panes. A professional inspection can clarify whether you need cleaning, seal repair, or replacement before you spend money on the wrong solution.
What Happens When You Skip Regular Window Cleaning
Dirty windows are not just a cosmetic issue. The consequences compound over time.
Hard water etching becomes permanent. Mineral deposits from the Edwards Aquifer bond to glass at a molecular level when left for months. Once etching occurs, no amount of cleaning restores the original clarity. The glass itself is damaged. The IWCA recommends regular cleaning maintenance to preserve the long-term integrity of architectural glass.
Property values take a hit. A study published in The Journal of Real Estate Finance and Economics found that homes with strong curb appeal sell at a 7 percent premium compared to similar homes in the same neighborhood. With San Antonio’s median home value at around $279,000, that premium amounts to roughly $19,500. Neglected windows visibly drag down a home’s exterior appearance.
Seals deteriorate faster. Grime buildup traps moisture against window seals, accelerating rot and failure. Replacing window seals or entire window units costs far more than a year of professional cleaning.
Mold grows in tracks and frames. San Antonio’s humidity, combined with organic debris in window channels, creates ideal conditions for mold. Regular cleaning removes the material mold feeds on before it takes hold.
DIY Maintenance vs. Professional Window Cleaning
Light interior cleaning between professional visits is reasonable. A microfiber cloth and a vinegar-water solution handle fingerprints and kitchen film on first-floor windows.
Professional cleaning is the better choice for exterior windows, second-story access, hard water stain removal, and any situation involving ladders or roof-adjacent glass. Our technicians use both pure water-fed pole systems for exterior upper-floor glass and the traditional strip-washer-and-squeegee technique for detailed interior work. Every job includes frame detailing, cobweb removal, and track dusting at no extra charge. We use eco-friendly, biodegradable cleaning solutions that are safe for plants, pets, and indoor air quality.
The safety factor matters. Falls from ladders are one of the most common home maintenance injuries. Our crew is OSHA-certified and trained through both the IWCA and PWNA, and equipped with the proper equipment for every situation, from single-story ranch homes to multi-story properties requiring rope descent systems.
How Much Does Regular Window Cleaning Cost in San Antonio?
Most San Antonio homes fall in the $150 to $300 range per visit, depending on the number of windows, the number of stories, and accessibility. Factors that influence your specific price include the size and type of each window pane, quantity, and access to the glass. A sliding glass door costs more to clean than a single-hung bedroom window, and third-floor windows cost more than ground level.
Scheduling recurring service, whether quarterly or annually, often reduces per-visit costs compared to one-time bookings. For a full breakdown of pricing factors, see our detailed guide on window cleaning costs in San Antonio.
Frequently Asked Questions
Do HOA communities in San Antonio require window cleaning?
Many do. Communities like Stone Oak, The Dominion, Rogers Ranch, and Alamo Ranch include exterior appearance standards in their CC&Rs. Some HOAs issue violation notices for visibly dirty windows, stained glass, or mildewed frames. Even when window cleaning is not explicitly mandated, maintaining clean windows helps you stay compliant with general curb-appeal requirements. Check your specific HOA guidelines or ask your property manager for the exact standards in your community.
Does San Antonio’s hard water permanently damage windows?
Yes, if left untreated long enough. The Edwards Aquifer delivers water with a hardness rating of 15 to 20 grains per gallon. Calcium and magnesium deposits from sprinkler overspray and rain runoff initially sit on the glass surface. Over several months, those minerals etch into the glass through a chemical bonding process. Once etching occurs, the damage is irreversible without professional glass restoration, which costs significantly more than routine cleaning.
Should I clean my windows before or after a big storm?
After. San Antonio’s heaviest storm activity hits in May and September. Cleaning before a major storm is a waste of effort. Schedule your cleaning for mid-to-late May and late October to capture the post-storm debris and start the next season clean. If a severe storm leaves heavy mud or debris on your glass, do not wait for your next scheduled visit. Prompt removal prevents staining.
Is window cleaning worth it if I’m trying to sell my home?
Absolutely. San Antonio’s current sale-to-list price ratio hovers around 96-97 percent, indicating buyers are negotiating. Clean, sparkling windows signal a well-maintained home and reduce the objections buyers use to justify lower offers. Research shows curb appeal can add up to 7 percent to a home’s sale price. On a $279,000 home, that is a significant return on a service that costs a few hundred dollars.
Can I just clean the inside and skip the outside?
Interior cleaning helps with smudges and kitchen grease, but exterior surfaces take the real punishment. Pollen, hard water minerals, storm debris, and UV-baked dust all attack from the outside. Skipping exterior cleaning means those contaminants continue to etch and stain the glass regardless of how clean the interior looks. We quote interior-and-exterior and exterior-only pricing separately so you can choose the level of service that fits your budget and situation.
Schedule Your Next Window Cleaning
San Antonio’s climate does not give your windows a break. If it has been more than three months since your last professional cleaning, your glass is already accumulating damage you cannot see yet. We have spent over 20 years helping San Antonio homeowners protect their investment with the right cleaning schedule, and we back every job with a 48-hour satisfaction guarantee. Call us at 210-313-1555 or request your free estimate online to get started.
