Painting garages, carriage houses and outbuildings so they match the house

Garages, carriage houses, sheds and fences should be painted to match the main house, and they’re worth doing at the same time. Prep the bottom edges and wood doors carefully, repair rot first, prime bare areas and use the same palette so the property reads as one. Skipped outbuildings stand out next to a fresh house.

Many older properties in Grosse Pointe and across Metro Detroit have a detached garage or carriage house from the same period as the house, often with matching trim, similar rooflines and wood doors. They age on the same schedule as the house, and then get left out when the house is repainted. Here’s why that’s a mistake and how to do the work well.

Why do secondary buildings get skipped?

Usually it’s about scope and attention. The house is the main event, the outbuilding is out of sight behind it, and trimming a budget or schedule starts with whatever feels optional. A detached garage can also feel like a different kind of project, with different doors, different materials and sometimes a tougher setting, close to the property line or hemmed in by plantings.

The result shows. A garage with sun-faded, peeling trim beside a house with crisp new paint looks like the leftover job on the list. Neighbors notice it, and so do buyers. If a property is a single composition, as many older ones are, each building has to carry its share.

There’s a protective reason as well. Unpainted or failing outbuildings let moisture reach wood, and a garage with rotted sills or a collapsing door is a bigger repair than a repaint would have been.

How do you match a garage or carriage house to the main house?

Matching doesn’t mean copying every color. It means the buildings belong to the same family.

• Use the same body and trim colors where the buildings share a style. A carriage house with the same trim white and body color as the house reads as part of it.
• If the house has several colors, carry over the main ones: body, trim and one accent. Don’t try to replicate every detail.
• Doors can echo the front door or shutter color. This is a pleasant way to tie the buildings together without painting everything identically.
• Keep sheen logic the same. Trim in a harder, glossier finish and walls in a flatter one, as on the house. Our paint sheen guide explains the choices.
• Allow for the roof. If the garage roof is a different color or material than the house roof, the palette has to work against both. See our guide to colors for slate roofs, brick and stone.

When a house is being repainted in a new color, the outbuilding follows, so the property doesn’t end up as two different eras. Our whole-house color palette guide helps with picking a set that carries across buildings. Sample on the actual walls, since light on a shaded garage looks different from light on the house; screens and chips mislead.

Why do bottom edges matter so much?

The lowest few inches of any building take the worst of everything: rain splash, snow piled against the wall, ice melt, lawn sprinklers and wet leaves. On a garage, those bottom edges are often close to a driveway, which adds salt, slush and standing water.

A careful job pays particular attention to them:

1. Probe for rot. Press a screwdriver tip into the lowest board, the corner posts and the door trim. Soft wood is replaced, not painted.
2. Clear the contact. Soil, mulch and piled leaves against siding hold moisture. Pulling them back, so the wall has air at the bottom, extends the life of the paint.
3. Prime bare wood and cut ends. The bottom edge of a board is end grain at the corners and soaks up water quickly. It gets primer and a full topcoat, including edges that are hard to see.
4. Seal joints that can be sealed. Corner joints and trim returns get paintable caulk. Don’t seal the lowest edge of lap siding, which needs to drain.

The same rule runs through our guide on why exterior paint peels: moisture at the base of a wall is behind a large share of peeling.

How are garage doors prepared and painted?

The right approach depends on the material. Check what you have before choosing anything.

• Wood doors are common on older garages and carriage houses. They are scraped to sound paint, sanded, dried out, repaired where panels have split or rails have opened, primed on bare wood and painted. The bottom rail and lower panels take the most punishment, and the edges, top and bottom of the door need coating too, not only the visible face. Unsealed wood absorbs water through those edges and swells.
• Steel doors need rust spots sanded back to bright metal and primed with a rust-inhibiting product, then painted with a coating made for metal. Dents and chips are filled; wipe off any wax or grease first so the paint bonds.
• Aluminum and vinyl-clad doors need thorough cleaning and a bonding primer. Check the label, as some finishes aren’t meant to be painted.

With overhead doors, the details around the paint count as much as the paint:

• Hardware, handles, hinges and locks are masked or removed, not painted over.
• Weatherstripping and rubber seals are protected.
• Rollers, tracks and springs are left alone. Paint on a track causes sticking.
• Each panel is painted so it won’t be stuck shut against the next one before it cures.
• The door is left closed or open as the coating requires, and not run until it has dried enough to avoid sticking or marking. The label says how long.

Whatever the door’s material, color choice matters too. A dark door absorbs heat, so on a steel or vinyl door it’s worth checking the manufacturer’s guidance on dark colors.

What about sheds, fences and gates?

Smaller structures follow the same rules, with some differences.

• Sheds are often built of plywood or composite siding, and sometimes have little overhang to shed water. They need a good primer on bare plywood edges, and caulk at the corners and trim. Rot at the base, where the shed meets the ground, comes first.
• Fences and gates are exposed on every side, and the top of each post and rail gets the harshest weather. Wood fences take paint or solid stain, and the posts’ end grain and the bottoms of pickets deserve full coverage. Hinges and latches are masked or removed. Keep plants and shrubs protected; see our guide on protecting landscaping during exterior painting.
• Pergolas, trellises and decorative wood have many small edges and joints, so brush-work counts for more than speed.

For every one of them, a surface that is clean, dry and sound before coating makes the difference. Mildew on shaded fence boards is cleaned off first, just as it is on a house wall.

Is there a lead paint concern on old garages?

Yes. Garages and outbuildings built before 1978 may carry lead-based paint, and scraping old doors and trim disturbs it. The EPA’s Renovation, Repair and Painting (RRP) rule requires certified firms and lead-safe work practices for paid work that disturbs painted surfaces in pre-1978 homes, more than 20 square feet outside. See the EPA’s RRP program page and our lead paint guide.

What does a thorough outbuilding job look like?

A few checks you can make once the job is done:

• Bottom edges of the siding and doors are fully coated, with no bare wood or ragged lines.
• The door opens and closes freely, and hardware and seals are clean.
• Colors and sheen read as part of the main house, in the same light.
• Joints are neatly caulked, and no paint has landed on the roof, driveway or plantings.
• Soft or rotted wood has been repaired, not covered.

The same prep-first steps on our process page apply to a garage or carriage house as to the main house. Bob and Bobby are on every project, and the plain-English written scope can include the garage or carriage house alongside the house, so the whole property is done at once. To see the full range, visit our exterior painting page.

Questions

Planning an exterior project?See how Guiffre’s prepares and paints exteriors built for Michigan weather.→