Exterior house painting built for Maryland weather

Siding, trim, brick and doors, prepped to last through humid summers, hard rain and freeze-thaw winters.

Painted colonial exterior with fresh white trim and dark shutters in Bethesda, Maryland

Exterior paint in the Washington area has to handle a lot: long humid summers, sudden downpours, and winters that swing above and below freezing dozens of times. Water gets into any open joint, freezes, and pushes paint off the wood. That is why most exterior failures we see in Bethesda, Silver Spring and across DC are prep failures, not paint failures.

Every exterior starts with a cleaning, usually a low-pressure soft wash from our pressure washing crew, followed by scraping, sanding, caulking and priming bare wood. Soft or rotted trim is replaced before paint, not painted over, through our trim carpentry and wood rot repair work. If you have a deck, fence or porch that needs attention too, we can schedule deck and fence staining in the same visit.

What we paint outside

  • Wood and fiber-cement siding

    Clapboard, cedar shake and HardiePlank, scraped and spot-primed where bare.

  • Trim, fascia and soffits

    The parts that fail first. Caulked at every joint and finished in a durable satin or semi-gloss.

  • Brick and masonry

    Previously painted brick repainted with breathable masonry coatings. Limewash where it suits the house.

  • Doors, shutters and railings

    Front doors finished to a smooth enamel; iron railings wire-brushed and primed with rust-inhibiting primer.

  • Stucco

    Hairline cracks filled with elastomeric patch and coated with a product that flexes with the wall.

  • Window glazing and caulking

    Failed glazing putty and open joints sealed so water stays out of the wood.

Local insight: exterior painting around Washington

The season runs April to October, with limits

Most exterior latex products need air and surface temperatures above 35 to 50°F depending on the product, and the surface should stay at least 5°F above the dew point while the paint dries. Fall mornings here bring heavy dew, so in October we start later, stop earlier, and skip shaded walls that stay wet until noon.

Unpainted brick in a historic district needs a permit

Montgomery County does not review paint colors, even in historic districts like Kensington, Takoma Park and Chevy Chase Village. Painting brick or stone that has never been painted is different: on a designated property it requires a Historic Area Work Permit first. In DC, painting unpainted masonry on a historic landmark also needs review. We check before we quote.

North and south walls fail in different ways

Under the mature tree canopy in Bethesda and Chevy Chase, north-facing walls stay damp and grow mildew and algae. South and west walls fade and chalk from sun. We treat mildew with a cleaner before painting, add mildewcide where needed, and choose colors and sheens knowing which walls take the most sun.

Why fall exterior days start late and end earlyAn illustrative October day in Montgomery County, not a forecast. We paint only while the surface stays at least 5°F above the dew point, and stop early enough for the paint to dry before evening dew.
Why fall exterior days start late and end earlyLine chart of wall surface temperature and dew point from 6 am to 7 pm. The dew point stays near 48°F, so the minimum surface temperature is about 53°F. The wall stays below that until about 9:30 am and then needs time to dry off, so painting runs from 10 am to 3 pm. From 3 pm until about 5:45 pm the paint dries while the wall is still warm enough. After that the wall cools below the limit and dew returns.Wall damp or too coldPaint windowDrying time40°50°60°70°6 am8 am10 amnoon2 pm4 pm6 pmWall surface temperatureDew point plus 5°F (minimum)Dew pointWhy fall exterior days start late and end earlyLine chart of wall surface temperature and dew point from 6 am to 7 pm. The dew point stays near 48°F, so the minimum surface temperature is about 53°F. The wall stays below that until about 9:30 am and then needs time to dry off, so painting runs from 10 am to 3 pm. From 3 pm until about 5:45 pm the paint dries while the wall is still warm enough. After that the wall cools below the limit and dew returns.Wall damp ortoo coldPaint windowDryingtime40°50°60°70°6 am9 amnoon3 pm6 pmWall surface temperatureDew point plus 5°F (minimum)Dew point
Each side of a house wears differentlySeen from above with north at the top. We plan prep, products and the day’s painting order around these differences.
Each side of a house wears differentlyPlan view of a house. The north side gets the least sun and stays damp under trees, so mildew and algae grow there and are cleaned and treated before painting. The east side gets morning sun and dries first, so the day often starts there. The south side gets the most hours of sun and fades and chalks. The west side takes the hottest afternoon sun, also fades and chalks, and is painted while it is in morning shade.North: shade and dampLeast sun, often under trees. Mildew andalgae are cleaned and treated beforepaint.NWest: hottest sunAfternoon heat fades andchalks paint. We paint itin morning shade.East: dries firstMorning sun burns off dewhere first, so the dayoften starts on this side.South: most sunFades and chalks fastest. Color and sheen arechosen with that in mind.Each side of a house wears differentlyPlan view of a house. The north side gets the least sun and stays damp under trees, so mildew and algae grow there and are cleaned and treated before painting. The east side gets morning sun and dries first, so the day often starts there. The south side gets the most hours of sun and fades and chalks. The west side takes the hottest afternoon sun, also fades and chalks, and is painted while it is in morning shade.NNorth: shade and dampLeast sun, often under trees. Mildew andalgae are cleaned and treated before paint.East: dries firstMorning sun burns off dew here first, so theday often starts on this side.South: most sunFades and chalks fastest. Color and sheen arechosen with that in mind.West: hottest sunAfternoon heat fades and chalks paint. Wepaint it in morning shade.

How an exterior repaint runs

  1. Inspection

    We probe trim for rot, check moisture, and note failing caulk and glazing in the estimate.

  2. Wash and dry

    Soft wash to remove dirt and mildew, then enough dry weather for the wood to come down in moisture.

  3. Scrape, repair and prime

    Loose paint removed, rot repaired, joints caulked, and every bare spot primed.

  4. Two finish coats

    Applied in suitable temperatures, following the shade around the house through the day.

  5. Walkthrough and cleanup

    Paint chips collected, plants uncovered, and a final walk around the house with you.

Exterior painting questions

When is the best time to paint a house exterior in Maryland?

Late April through June and September through mid-October give the most reliable temperatures and lower humidity. Summer works too, but we plan around the sun so we are not painting walls in direct midday heat.

How long does exterior paint last here?

With proper prep, a quality acrylic on wood siding commonly lasts 7 to 10 years. South- and west-facing walls and horizontal surfaces like railings wear faster. Fiber-cement siding usually holds paint longer than wood.

Do I need HOA approval to change my exterior color?

In most townhouse and planned communities, yes. Communities in Gaithersburg, Germantown and Columbia commonly require architectural approval. Bring us the approved colors, or we can supply painted samples for your application.

Can you paint or limewash my brick house?

Usually, yes, using breathable masonry products. If the brick has never been painted and the house is in a historic district or is a designated landmark, a permit review is required first. We will tell you before you commit.

Get a free exterior painting estimate

Tell us about the property and we will schedule a visit.