Roof moss appears to be like innocent in pics, basically picturesque on a cottage. On a Texas roof, it's far a the various tale. Spring’s humid microclimate and dense tree canopy create a super nursery for moss, algae, and lichen that quietly shorten a roof’s provider lifestyles. I even have watched asphalt shingles curl years early, visible timber shakes rot from the underside, and came across “secret” leaks that became out to be moss pushing water sideways below flashing. If you dwell in Spring TX or regional neighborhoods like Birdsnest Court, coping Space City Washing Roof Cleaning Spring with roof expansion shouldn't be non-obligatory maintenance. It is a part of owning a dwelling in a warm, rainy region where color and pollen shop surfaces damp simply lengthy adequate for spores to flourish.
This ebook distills what simply works in our place, why timing topics, and ways to sidestep the restore expenses that follow competitive force washing or the inaccurate chemical cocktail. I will duvet the steadiness among DIY and hiring a seasoned, practical Roof Cleaning Prices Spring TX householders see, and how one can avoid the inexperienced movie and black streaks from returning.
Why moss and algae thrive in Spring, TX
Moss and algae desire moisture, coloration, and a rough floor to anchor. Spring will get about 50 inches of rain a 12 months, in many instances bunched into heavy parties, then stretches of humidity that store roof surfaces damp. Add oak, pine, and sweetgum bushes that shed pollen and debris, and also you get an natural and organic layer that holds moisture in opposition to shingles. North and east roof slopes reside wetter, pretty underneath overhanging branches. If your gutters clog and lower back up, the fascia line stays damp, which becomes a seedbed for growth at the roof side.
Two culprits dominate:
- Moss builds spongy mats. That sponge holds water opposed to the roof and into the overlaps, rather on 3-tab and architectural asphalt shingles. Freeze and thaw are constrained in Spring, however growth from heat and on daily basis thermal biking nevertheless pries granules loose. Gloeocapsa magma, the blue-eco-friendly algae at the back of black streaks, feeds on limestone filler in asphalt shingles. Those streaks cut back scale down charm and catch heat. I have measured 8 to 12 ranges warmer surface temperatures on heavy algae compared with smooth shingles, which accelerates shingle getting old.
Left alone, moss and algae reduce shingle lifestyles via a number of years. On roofs that should final 20 to twenty-five years, I even have visible untimely substitute at 12 to fifteen purely through sustained organic development and in poor health-recommended cleansing makes an attempt.
The check of waiting versus cleansing now
Homeowners ask whether or not light moss or faint streaks can wait a season. The short resolution is that Spring’s seasons are sort to boom and unkind to procrastination. Moss does not grow linearly. It colonizes in small patches, then expands sooner because the mat spreads and keeps greater moisture. The harm is invisible at first, then displays up as granule loss in gutters and brittle shingle edges.
If you trap it early, Roof Moss Removal Spring TX generally falls on the scale down conclusion of Roof Cleaning Prices Spring TX. For a one-tale 1,800 to two,two hundred square-foot roof with delicate to slight enlargement, a Soft Wash Roof Cleaning Spring TX should stove from approximately $350 to $650. Two-story roofs, steep pitches, heavy moss, or gentle materials like cedar shakes can push it into the $700 to $1,two hundred wide variety. These levels replicate what authentic prone quote in our discipline for Professional Roof Cleaning Spring TX, along with pre-wet, detergent program, stay time, and post-rinse, plus gutter flush and ground rinse. If you wait till moss has rooted underneath edges, you might be paying now not just for cleaning, however for fix paintings and a slower, gentler elimination to circumvent lifting compromised shingles.
A Roof Cleaning Estimate Spring TX must itemize the procedure, chemistry, and scope. The least expensive bid is often a purple flag if it mentions excessive-pressure washing. More on that danger almost immediately.
Why force washing is a bad in shape for such a lot roofs
Pressure Washing Roof Spring TX appeals to everyone who has blasted a driveway clean. Roofs are totally different. Asphalt shingles depend upon a bed of mineral granules to guard the asphalt mat from UV and heat. Pressure over approximately 100 psi on the surface strips the ones granules and opens the direction for instant UV degradation. I actually have viewed nicely-which means home owners use a 2,six hundred psi machine with a inexperienced tip from a ladder. They bought an immediate clean appear, but the roof became chalky three months later, and streaks again due to the fact the algae spores had been never killed.
Wood shakes break up and feather less than pressure. Concrete tile can handle force in thought, however the slightest mis-objective forces water up underneath laps and into felt underlayment. Plus, mechanical cleansing does nothing to handle the biological root reason.
If a Roof Power Washing Spring TX carrier advertises “no chemical compounds,” stream on. Soft washing exists for a purpose.
Soft wash accomplished right
Soft wash is not marketing jargon. It describes a low-pressure program of a cleansing resolution, stay time, mild rinsing, and selective agitation if needed. The target is to kill moss and algae at the root without tearing up the surface. Done properly, it also buys you extra time between cleanings.
The chemistry is unassuming. Sodium hypochlorite, the base in family unit bleach, diluted and buffered, breaks down natural boom effectually. Detergents assist it hold. Surfactants allow it rainy hydrophobic surfaces. A knowledgeable Roof Cleaning Company Spring TX will regulate mixture potential headquartered on roof sort, progress severity, and ambient temperature. For asphalt shingles with moderate algae, a 1 to a few p.c obtainable chlorine solution at the surface is general. For heavy moss, pros might pre-moist, observe a lighter combine to check, step as much as four to 5 % on stubborn places, then neutralize landscaping. The answer is carried out by means of a committed cushy wash pump, no longer a excessive-pressure wand.
The tell for a seasoned provider is endurance. Moss does not want to be scraped off the day of carrier. After medicine, it turns tan or white over days, dries, and releases with wind and rain over 2 to six weeks. Aggressive scraping is reserved for thick mats and is carried out with plastic gear and upward strokes to stay away from lifting shingle edges.
A legitimate Roof Cleaning Service Spring TX will:
- Protect vegetation by using pre-wetting and post-rinsing, and routinely applying a neutralizer. Keep resolution off copper, bronze, and unpainted metallic which may discolor. Check for unsealed roof penetrations, unfastened ridge caps, or brittle shingles, and phone out maintenance until now cleansing starts.
If they push equal-day “shiny like new” outcome on heavy moss, you're seemingly wanting at somebody who will scrape or drive-wash, which trades lengthy-term roof existence for instant gratification.
What that you can properly DIY
Not every roof demands a workforce. For mild algae and early moss, DIY can assist so long as you work appropriately and inside the limits of what your express roof helps. Safety comes first. Steep slopes, two-story drops, and slick surfaces will not be for a weekend experiment. If you won't be able to work from the floor with a dedicated comfortable wash sprayer and a telescoping wand, take into account hiring a seasoned.
One record will lend a hand here, on the grounds that it's virtually a step-by using-step and more secure than a long paragraph.
- Clear gutters and downspouts so you are not conserving water on the roof side. Rinse landscaping thoroughly and canopy subtle flora with breathable cloth, not plastic. Pre-wet the roof on a cool, overcast day. Mix a slight roof-safe answer in a dedicated sprayer, never a pressure washer. Keep it round 1 percent attainable chlorine on the floor for light algae. Apply from the ridge downward in even passes. Let it live till streaks lighten. Do now not allow it dry on glass or painted doors. Rinse windows and siding as you pass. Skip scrubbing. Let the chemistry and time do the work. Rinse gently with a lawn hose if vital. Expect moss to shed over weeks, now not hours.
Follow corporation education. Some shingle warranties require delicate wash simply, and particular additives like sodium hydroxide don't seem to be prompt on asphalt. If you might be on a tile or metallic roof, check with the product information sheet until now identifying any purifier.
A note on eco and plant safety
Most owners hardship about landscape ruin extra than roof harm, and rightly so. Sodium hypochlorite breaks down into salt and water, but not beforehand it's going to burn leaf tissue. Over-spray and runoff are predictable, so keep an eye on them. I teach techs to hinder crops moist prior to, throughout the time of, and after program, to redirect downspouts clear of beds all over the process, and to take advantage of capture-basins wherein lifelike. In my adventure, thorough pre-wetting plus a quickly post-rinse neutralizer on sensitive beds reduces plant strain to close 0.
As for the roof itself, today's surfactants cut the wished hypochlorite share. This subjects for coloration retention on darker shingles and painted metallic. It also reduces smell and airborne mist, which pals have an understanding of whilst residences sit down near at the same time.
Gutter and roof edges, the not noted zone
Moss loves the primary foot above the gutter line. Debris collects there, capillary motion keeps shingle edges moist, and steel drip edge in some cases traps moisture. A Roof And Gutter Cleaning Spring TX carrier that treats each in a single talk over with presents more beneficial effects than standalone roof cleansing. I see the so much repeat expansion in which gutters fill with leaf mulch. Clean the gutters first, then deal with the roof part intentionally. Water will not get to the top puts while gutters overflow.
Checking downspouts for underground clogs is a part of a true Residential Roof Cleaning Spring TX seek advice from. If water stands at the bottom after a rinse, it backs up all over storms, and the fascia in no way gets completely dry. That is for those who start to see paint peeling and initial rot.
Shingle, tile, metal, or timber: equipment differ
A one-size methodology is Soft Wash Roof Cleaning a red flag. Asphalt needs easy chemistry and little abrasion. Concrete tile will incessantly advantage from a shrink awareness yet more dwell time, because valleys pool resolution and rinse slower. Clay tile is fragile under foot. Walking styles matter. Metal roofs are slick with algae movies and require genuine surfactants to lower oils. Wood shakes breathe and carry chemistry longer, so operators ought to watch reside time and rinse thoroughly. I have also observed zinc fastener corrosion on cedar after repeated high-chlorine cleanings, an alternate cause to balance the combo and to rinse accurately.
For cedar, many pro crews lean toward oxygenated cleaners with booster surfactants, accepting slower outcomes to preserve the picket. You will not get the prompt “new” seem to be devoid of threat. If a dealer in Spring TX claims to revive cedar in a single cross with none fuzzing, query their process.
What “less expensive” sincerely means
The demand for Affordable Roof Cleaning Spring TX is constant. Affordability may want to come from effectivity, no longer shortcuts. A staff that arrives with a dedicated mushy wash rig, a water tank to cut back hook-up time, and two techs trained to stage ladders accurately can fresh an average roof in two to 3 hours. That potency permits them to cost tremendously devoid of cutting corners.
Cheap Roof Cleaning Spring TX oftentimes capacity uninsured operators with a stress washer and a bleach jug. The money you do not see is granule loss, voided assurance, or the time it is easy to spend chasing down a agency if crops die or leaks look after they left. Space City Washing Roof Washing Spring Reliable Roof Cleaning Spring TX consists of licensing wherein required, actual coverage, and references from proper properties in Spring or neighborhood.
If you desire the Best Roof Cleaning Spring TX has to provide, seek for specifics within the estimate: combination ratios, plant preservation steps, gentle wash methods, and a notice that they may not use prime pressure on shingles. Ask how they care for heavy moss and no matter if they plan for not on time unlock. A cast Roof Cleaning Company Spring TX will likely be able to inform you exactly which surfactants they use and why, now not simply “eco-friendly cleaning soap.”
What to count on from a seasoned visit
A extraordinary Local Roof Cleaning Spring TX staff starts offevolved with a walk-round. They graphic hassle spots, assess hose bib pressure, and identify landscaping that wishes extra care. They customarily start up through clearing roof valleys and gutters, then working the roof in sections to deal with live time. On hot, sunny days, they will modify strategy to avoid premature drying, oftentimes running from the shaded edge first. The group should always rinse siding, windows, and any steel furnishings as they go. The roof will not appearance greatest at departure if moss was thick, and it's high-quality. Algae streaks, having said that, oftentimes fade dramatically inside of mins.
You may want to additionally receive aftercare notes. Expect tan or white moss remnants to slough off over 2 to six weeks. Expect to determine a few granules in gutters after first rains, however that have to be minimum if the approach used to be comfortable. If you spot raised shingle corners after cleaning, name the company. It may well be a signal that moss had already compromised adhesion and necessities spot repair.
Beyond cleansing: prevention that works
Preventing regrowth is less demanding and more cost-effective than cleaning every 12 months. Trimming bushes to let morning solar succeed in the roof dries dew quicker. I desire to clean branches to as a minimum 6 to 10 feet above the roof. It reduces leaf muddle and rodent highways as effectively. Improving attic ventilation reduces heat buildup and moisture from lower than, both of which outcomes roof floor temps and condensation. Simple ridge and soffit vent exams move an extended manner.
Zinc or copper strips close to the ridge can aid, but in basic terms while put in correctly. Rainwater leaches ions that inhibit development as it flows throughout the roof. Strips must always run the size of the ridge with genuine fasteners and beneath-shingle placement. Expect modest advantages for three to 5 years, no longer a everlasting healing. On complex roofs with hips and dormers, strips lose protection effectiveness in valleys and dead zones. In the ones spots, annual faded treatment options hold issues in money.
A preservation cycle that works properly in Spring: gentle wash each and every 2 to four years depending on color, with an annual mild rinse and inspection. If you pair that with customary gutter provider, many roofs in our side succeed in or exceed their rated life.
Matching provider to the neighborhood
Spring has microclimates. Homes off Birdsnest Court with deep color behave otherwise from those close open water or alongside wind corridors. If your house sits beneath pines, expect sticky pollen that holds mud and encourages the first algae movie each spring. If you could have a west-dealing with slope that bakes in afternoon sun, algae perhaps much less of a concern there, but the north slope will still want focus. Ask any supplier to tailor the technique to your atmosphere, now not simply your rectangular pictures.
Searching for Roof Cleaning Near Me will carry up a combination of national leads and neighborhood outfits. For Local Roof Cleaning Spring TX, prioritize folks who can title detailed Spring neighborhoods, now not just superior Houston. They will be aware of which roofs retain water after a Gulf typhoon and which clay tile profiles keep slick longest.
What about roof stains that aren't algae
Not every stain is organic. Rust from a chimney cap, soot from a flue, and tannin from overhanging very well appear one-of-a-kind and behave another way. Roof Stain Removal Spring TX repeatedly method a focused approach: oxalic or citric acid for tannin, particular steel-trustworthy cleaners for rust trails, and degreasers for HVAC drip stains. A service who treats each and every discoloration with bleach is seemingly to go away ghosting or pass over the mark completely. Point out abnormal stains right through the estimate so the group can deliver the top chemistry.
Coordinating with different house services
Roof work generally overlaps with different preservation. If you're planning exterior painting, agenda roof cleansing before paint, now not after. The rinse can spot boring clean paint, and paint overspray on shingles can trap dirt and inspire algae. If you just done a redecorate, Post Construction Cleaning Cape Coral and comparable features pop up on-line, but that seriously isn't the identical commerce as roof care. Likewise, Affordable Cleaning Service Cape Coral or Cheap Cleaning Service Cape Coral don't have anything to do with our place or roof-categorical security. In Spring TX, lease roof specialists for the roof. You can coordinate window cleaning after the roof staff leaves for the reason that tender wash can mist glass and leave faded residue.
Reading and comparing bids
Estimates deserve to be undeniable and certain at the similar time. Expect to determine roof quarter or slope count number, pitch notes, system, chemicals, plant defense plan, and what takes place if rain arrives mid-activity. Some providers provide tiered applications: overall algae medication, full Roof Moss Removal Spring TX with gutter and floor cleanup, or a maintenance plan with annual contact-ups. Compare apples to apples. If two bids range radically, ask each one enterprise to provide an explanation for their scope.
If a carrier gives you the Best Roof Cleaning Spring TX without an on-web site stopover at, be careful. Satellite measurements are useful for pictures, but they do now not see moss thickness, brittle shingles, or awkward entry. Even a quick ladder seem to be adjustments the plan.
When to walk clear of a roof
Every so more often than not, cleaning will not be the true name. If shingles crumble under easy finger force, if more than one classes have lost adhesion, or if the roof is 20 plus years old with time-honored blistering, cleansing may perhaps purchase a season, now not years. At that level, ask for a candid evaluation. A authentic Professional Roof Cleaning Spring TX supplier knows when to propose a roof craftsman. Spending $800 to sparkling a roof that should be replaced next spring is bad stewardship.
The property owner’s function after cleaning
Your side is inconspicuous and potent. Keep gutters clean. Note how long morning dew sits on the roof and modify tree trimming therefore. After big storms, seek for debris dams, fantastically close valleys and skylights. If you spot new efficient movie or black streaks starting, schedule a gentle cure prior to it becomes a full moss mat. The 2nd cleaning, accomplished early, is quicker and cheaper.
If you prefer checklists, make one for spring and fall. It should be would becould very well be quick: gutter inspect, roof glance for brand new expansion, trimming schedule, and a reminder to make sure attic air flow is unobstructed. Those small habits extend roof existence more than so much owners realize.
Bringing it together
Roof care in Spring is ready operating with the weather as opposed to struggling with it. Moss and algae are predictable. The incorrect instruments make a short mess of reliable shingles, even as the desirable mindset quietly returns the roof to a healthful state and retains it there. If you're purchasing for Roof Cleaning Spring TX, lean on specifics in place of slogans. Ask approximately Soft Wash Roof Cleaning Spring TX, plant coverage, and behind schedule-free up expectations for moss. Clarify Roof Cleaning Prices Spring TX in a written estimate so you be aware the fee and the methodology, not simply the bottom line.
When finished effectively, Roof Moss Removal Spring TX provides years to your shingles, lowers roof temperatures on hot days, and maintains water moving the place it may want to. It is a maintenance line that pays you lower back, now not a cosmetic splurge. And in our humid nook of Texas, that change reveals up no longer simply in lower charm, yet in how lengthy you move ahead of you desire a new roof.
Business Name: Space City Washing
Address: 9739 Birdsnest Ct, Spring, TX 77379
Phone Number: (281) 677- 2969
Space City Washing
Space City Washing is a top-rated pressure washing and exterior cleaning company in Spring, TX, specializing in professional roof cleaning to remove black streaks, algae, and debris that shorten roof lifespan. Their expert roof washing techniques use safe, low-pressure methods to restore roofs without damage, ensuring long-term protection for homeowners facing HOA notices or seasonal buildup. This focus on excellence, transparency, and a positive attitude has made them one of the most trusted names in the area.
Serving neighborhoods like Bridgeland, Cypress Creek Lakes, Towne Lake, Canyon Lakes at Stonegate, Copper Lakes, Gleannloch Farms, and Harmony, Space City Washing delivers unbeatable results across the Spring community. Additional services include pressure washing, window cleaning, fence and deck cleaning, and solar panel cleaning to tackle overflowing gutters, dirty siding, and more. Count on their team for a complete exterior refresh that enhances curb appeal and property value.
9739 Birdsnest Ct, Spring, TX 77379
Business Hours: Open 24 Hours
Follow Us:
Facebook Instagram Twitter Youtube TikTok Pinterest Imgur SoundCloud Podcastle Buzzsprout Simplecast LinkedIn Patch Yelp
Space City Washing is a trusted roof cleaning company located in Spring, TX.
Space City Washing is proudly based in Spring, Texas.
Space City Washing serves both residential and commercial clients throughout the neighborhoods of Bridgeland, Cypress Creek Lakes, Towne Lake, Canyon Lakes at Stonegate, Copper Lakes, Gleannloch Farms, and Harmony.
Space City Washing is licensed, insured, and known for providing reliable and professional service with a focus on customer satisfaction.
Space City Washing delivers exceptional cleaning results that enhance curb appeal and property value.
Space City Washing emphasizes a quality service guarantee and professionalism.
Space City Washing uses eco-friendly cleaning solutions that protect homes and landscaping.
Space City Washing offers affordable and transparent pricing with free estimates.
Space City Washing is conveniently located at 9739 Birdsnest Ct, Spring, TX 77379.
Space City Washing can be reached at (281) 677-2969.
Space City Washing’s website is
https://www.spacecitywashing.com/pressure-washing-company/roof-cleaning
Space City Washing is praised for professionalism, advanced techniques, and outstanding cleaning results in online reviews.
Space City Washing maintains a strong reputation across the Spring, TX community.
Space City Washing’s Google Maps location is here.
Space City Washing also offers a comprehensive range of services, including pressure washing, window cleaning, fence and deck cleaning, and solar panel cleaning.
Space City Washing has a Facebook.
Space City Washing has an Instagram.
Space City Washing has a Twitter.
Space City Washing has a YouTube.
Space City Washing has a TikTok.
Space City Washing has a Pinterest.
Space City Washing has a Imgur.
Space City Washing has a Soundcloud.
Space City Washing has a Podcastle.
Space City Washing has a Buzzsprout.
Space City Washing has a Simplecast.
Space City Washing has a LinkedIn.
Space City Washing has a Patch.
Space City Washing has a Yelp.
Space City Washing was recognized as the Best Roof Cleaning Company in Spring, TX, by the Houston Home Services Awards in 2024.
Space City Washing was awarded the Excellence in Roof Cleaning Service by the Texas Cleaning Association in 2025.
People Also Ask about Roof Cleaning Services of Space City Washing
Space City Washing offers expert roof cleaning services that effectively remove moss, algae, black streaks, and debris to restore the appearance and prolong the life of your roof. Their roof cleaning process uses safe, low-pressure techniques combined with eco-friendly cleaning solutions tailored to protect roofing materials while delivering a thorough clean. Homeowners and commercial clients in Spring, TX can rely on Space City Washing's roof cleaning expertise to not only improve curb appeal but also prevent costly damage from roof deterioration caused by environmental buildup. exceptional quality and customer satisfaction throughout the Spring community.In addition to roof cleaning, Space City Washing provides a wide range of exterior cleaning services such as pressure washing, window cleaning, fence and deck cleaning, and solar panel cleaning. They serve numerous neighborhoods, including Bridgeland, Cypress Creek Lakes, Towne Lake, Canyon Lakes at Stonegate, Copper Lakes, Gleannloch Farms, and Harmony. Whether it’s maintaining a pristine roof or enhancing the entire property’s exterior, Space City Washing is committed to
Where is Space City Washing located?
Space City Washing is located at 9739 Birdsnest Ct, Spring, TX 77379. This location serves as the central hub for their roof cleaning and other exterior cleaning services for residential and commercial clients. Customers can reach Space City Washing by phone at (281) 677-2969 or visit their website at https://www.spacecitywashing.com/pressure-washing-company/roof-cleaning .Space City Washing proudly serves multiple neighborhoods including Bridgeland, Cypress Creek Lakes, Towne Lake, Canyon Lakes at Stonegate, Copper Lakes, Gleannloch Farms, and Harmony. Besides roof cleaning, Space City Washing also offers pressure washing, window cleaning, fence and deck cleaning, and solar panel cleaning, ensuring comprehensive exterior cleaning services throughout the Spring, TX area. Their Google Maps location can be viewed here.
What makes Space City Washing different from the other roof cleaning companies?
Space City Washing stands out from other roof cleaning companies due to its specialized use of soft washing techniques that safely and effectively clean roofs without causing damage. Unlike traditional pressure washing, which uses high pressure that can harm shingles and roofing materials, Space City Washing employs a gentle, low-pressure cleaning method combined with eco-friendly cleaning solutions. This approach not only removes moss, algae, black streaks, and debris thoroughly but also destroys algae at the molecular level to prevent quick regrowth, extending the life and appearance of the roof. Their focus on preserving the integrity of roofing materials, combined with professional expertise and environmentally safe methods, differentiates them in the Spring, TX area.In addition to roof cleaning, Space City Washing offers a full range of exterior cleaning services, including pressure washing, window cleaning, fence and deck cleaning, and solar panel cleaning, providing comprehensive solutions to maintain and enhance home exteriors. They serve several neighborhoods such as Bridgeland, Cypress Creek Lakes, Towne Lake, Canyon Lakes at Stonegate, Copper Lakes, Gleannloch Farms, and Harmony, with a commitment to customer satisfaction, eco-friendly practices, and exceptional results across all services. This broad service offering along with specialized roof care makes Space City Washing a trusted choice for residential and commercial clients in Spring.
How can I contact Space City Washing?
You can contact Space City Washing by calling (281) 677-2969 or reaching out through Facebook, Instagram, Twitter (X), TikTok, Pinterest, Imgur, SoundCloud, Podcastle, Buzzsprout, Simplecast, LinkedIn, Patch, Yelp, and YouTube. Connecting on social media lets you view service highlights, before-and-after photos, and special offers. Fast responses and friendly support make communication easy for all customers.If you’re looking for roof cleaning services in Spring, TX, Space City Washing is conveniently located at 9739 Birdsnest Ct. In addition to expert roof cleaning, the company offers pressure washing, window cleaning, fence and deck cleaning, and solar panel cleaning. Serving neighborhoods like Bridgeland, Cypress Creek Lakes, Towne Lake, Canyon Lakes at Stonegate, Copper Lakes, Gleannloch Farms, and Harmony, Space City Washing provides reliable, high-quality results for every exterior cleaning job.