How often to wash the house, roof, gutters and windows in North Texas

A calendar that fits most homes here

For most homes in our area, a full exterior house wash about once a year is enough, and shaded or tree-heavy lots often need it twice. Gutters need clearing at least twice a year, and quarterly under heavy canopy. A soft-washed roof often stays clean for several years, and windows are usually done two to four times a year. Concrete can follow the house wash, with stains treated as they appear.

Those figures come from our own published guidance at Park Cities Power Wash, and they are starting points, not rules. Your house might need more or less depending on how much shade it gets, how close the trees are, what the walls are made of and where the sprinklers hit. This guide explains each part of the exterior, the signs that tell you it is due, and the order that keeps one cleaning from undoing another.

The house: once a year, twice under heavy shade

Our soft washing article recommends a full exterior wash about once a year for most Dallas homes, and often twice a year for shaded, tree-heavy lots. It also cites general industry guidance of every 12 to 24 months, with humid climates at the shorter end. Humidity, storms, shade and debris from oak and pecan trees all speed regrowth, especially on north-facing walls.

Rather than relying on the calendar alone, walk the house a couple of times a year and look for the early signs. Catching growth while it is a light film means a quicker, simpler wash than waiting until a wall has gone dark. Soft washing also matters here: because it kills growth at the root rather than rinsing off the surface, the same article notes that a soft-washed surface may stay clean for a year or more.

Some events justify a cleaning outside the usual rhythm. If you are listing the house, hosting a wedding or graduation party, or have just finished a remodel that left dust and overspray on the walls, a wash a week or two beforehand is worth more than sticking to the calendar. The same is true after a long, wet spring, when growth on the shaded walls can jump ahead of schedule.

• A green or gray film on the shaded side of the house.
• Dark streaks below window sills, downspouts and roof edges.
• Cobwebs and grime collecting under eaves and around light fixtures.
• Stone or stucco that looks darker after rain and never fully dries out.
• Chalky residue on metal trim or siding, which may point to oxidation.

Gutters: spring and fall, or every season under big trees

Our gutter cleaning cost article sets a baseline of twice a year, and quarterly for homes under heavy tree canopy. The best windows are late spring, after the pollen and oak tassels drop, and fall into early winter, after the leaves come down. Pecans, acorns, live oak catkins and cedar elm debris all end up in gutters here.

Clogged gutters are not just a gutter problem. The same article lists the warning signs: water spilling over the edges in rain, gutters sagging or pulling away from the fascia, plants growing in the troughs, dark streaks on stone or siding below the gutter line, and grit piling up at the downspouts. It also notes that overflow pours water against the foundation, and Dallas sits on expansive clay that shrinks and swells with moisture. For the drainage side of that problem, a gutter specialist explains it in water over the gutter edge and pooling at the foundation.

The roof: every few years, not every spring

Roofs need cleaning far less often than walls. Our roof cleaning page says results often last several years before regrowth appears, depending on trees, shade and moisture. Shaded slopes under heavy canopy come back sooner, and open, sunny roofs can go much longer. Our roof cleaning cost article adds that mild winters here make roof cleaning possible year-round.

Look at the roof from the street once or twice a year. When dark streaks start to spread from the ridge or from under the trees, it is time to plan a cleaning, ideally before they cover whole slopes. I explain what the streaks are and how they come off in black streaks on the roof and whether they matter.

Windows: two to four times a year

Our window cleaning page offers quarterly or twice-yearly plans, which is the range most homeowners settle into. Homes near busy streets, under trees or with sprinklers that hit the glass tend to want the shorter interval. The same page notes that hard water deposits from sprinkler systems are common here and that removing them is a restoration service beyond a standard window cleaning, so fixing the sprinkler that hits the glass saves money every visit.

Exterior glass is cleaned with a water-fed pole and purified water, without chemicals, and interiors by hand with a squeegee and microfiber. Screens and tracks can be added. If your windows are cleaned the same season as the roof, schedule them after it: our roof cleaning page recommends waiting 24 to 48 hours after a roof cleaning before window cleaning or painting.

Driveway, patio and fence: as needed, with the house

Concrete does not need a fixed schedule as much as it needs attention when stains appear. Many homeowners add the driveway, walks and patio to the annual house wash, which keeps the whole property looking consistent and is usually cheaper than a separate visit. Pool decks and shaded patios that get slick after rain may need more frequent attention for safety.

Stains are a separate question from general grime. Rust from sprinklers and fertilizer, oil from cars and tannins from pecans and oaks each need their own treatment, and rust returns if the source is not fixed. I cover each in rust, oil and tree stains on the driveway. Wood fences and decks are typically cleaned before staining; our fence cleaning page recommends waiting until the wood is fully dry, typically 24 to 48 hours, before applying stain.

The order that keeps one job from undoing another

When several surfaces are cleaned in the same visit or season, sequence matters. Work from the top down, because whatever comes off the roof and gutters lands on the walls, windows and flatwork below.

Timing between seasons matters as well. Gutters cleaned in late spring and again after the leaves fall line up neatly with a house wash in spring or early summer, which is when many homeowners want the exterior looking its best. A roof cleaning, when it is due, fits naturally into that same visit.

This is also why bundling makes sense. When one crew handles the whole exterior in the right order, nothing gets cleaned twice, and the setup is done once. I describe what a single visit looks like, including plant and pet protection, in house washing day: how to prepare and what happens.

• Roof first, so runoff does not land on freshly cleaned walls.
• Gutters next, so debris and dirty water are out of the way.
• House walls after that, top to bottom.
• Windows once the roof and walls are done, allowing drying time after a roof cleaning.
• Driveway, walks and patio last, since everything above drains onto them.

Shade, sprinklers and trees: what shortens every interval

Three things make the biggest difference to how often any surface needs cleaning, and you control two of them. Sprinklers that hit the walls, windows or concrete every morning keep those surfaces damp, feed algae and leave hard water and rust spots. Re-aiming them is free. Branches over the roof and against the walls block sun and drop debris; trimming them helps every surface below.

The third is the house itself. Porous stone and stucco hold moisture longer than painted siding, and north-facing walls dry slowest. You cannot change those, but you can plan around them, cleaning the shaded side more often than the sunny ones if that is where the growth always starts.

• Re-aim sprinkler heads away from walls, windows and concrete.
• Trim branches touching the roof or walls.
• Keep gutters flowing so water does not stream down the stone.
• Blow leaves and pecan debris off concrete before rain.
• Watch the north and east sides, where growth usually starts.

Putting it on autopilot

If remembering all of this sounds like one more chore, a recurring plan takes it off your list. Our soft washing article notes monthly, quarterly, semi-annual and annual maintenance plans, and our house washing page notes that recurring plans are discounted and may include add-ons or touch-ups. Our gutter cost article notes that recurring gutter plans include a clog guarantee between visits.

If you prefer to manage it yourself, a simple habit works well. Take a photo of each side of the house, the roof and the driveway on the same weekend every spring and fall, and keep them in one album on your phone. Comparing them side by side shows you exactly when growth starts creeping back and which wall always goes first, which tells you far more than any general rule, including mine.

Whether you book a plan or call when you notice something, we serve homes within about 30 miles of Dallas and will suggest a schedule based on your shade, trees and surfaces rather than a one-size calendar. Send a few photos of each side of the house and the roof, and we will tell you what is due now and what can wait.

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