Painting a garage door is a good idea if the door still works and the panels are sound. A 2-car door usually needs about 1 to 2 gallons of paint, and professional painting often runs $250 to $700 in Colorado. A well-done paint job typically lasts 5 to 10 years, less on a south or west door baking in afternoon sun.

A garage door is often the largest single surface on the front of a house. Faded paint there drags the whole exterior down, so it is one of the best small projects for the money.

Is painting a garage door a good idea?

Yes, when the door is structurally fine. Paint restores color, seals the surface, and can bring back a door that looks tired. It is much cheaper than replacement.

It is not a good idea when:

  • Panels are dented, cracked, or delaminating
  • Wood sections have rot
  • The door sticks or the springs and track need work
  • The finish is a factory-baked or vinyl-clad surface that will not hold new paint

If the door works and only the finish is bad, paint it.

Is it cheaper to paint a door or buy a new one?

Painting is cheaper by a wide margin. These are typical Front Range ballparks. They vary by door and finish, and a written estimate is the only real number.

OptionTypical ballpark (2-car door)
DIY paint and supplies$60 to $150
Professional painting$250 to $700
New insulated steel door installed$1,200 to $3,500
New wood or custom carriage-style door$3,000 to $8,000 or more

If the door is 15 to 25 years old and the insulation or opener is failing, replacement may make sense. If the door just looks faded, paint is the smarter spend. If you are also refreshing the front of the house, read our exterior painting cost guide.

Prep by material: steel, wood, and fiberglass

The prep depends on what the door is made of. This is the step that decides how long the paint lasts.

Steel. Most common. Wash with a degreasing cleaner, rinse, and dry. Sand glossy areas lightly. Remove any rust with a wire brush or sandpaper, then spot-prime with a rust-inhibiting metal primer. Dents can be filled with auto-body filler if you want a flat look. Then apply a bonding primer over the whole door.

Wood. Scrape loose paint, sand to feather edges, and check for soft spots. Replace or repair rotted sections. Prime bare wood with an oil-based or high-quality bonding primer. Wood moves with temperature and moisture, so caulk seams and keep the bottom edge sealed.

Fiberglass. Clean well, since the surface can hold wax and grime. Scuff-sand and use a bonding primer. Fiberglass that was factory-finished with a wood-grain stain may want a stain instead of paint.

Vinyl-clad or aluminum. Often factory-finished. These need a specialty primer, and many manufacturers recommend against painting at all. Check the warranty.

Older doors made before 1978 can carry lead paint. Sanding and scraping it falls under EPA lead-safe rules, which apply to painting contractors in older homes. See lead paint in older Colorado homes for what that means in practice.

How much paint for a 2-car garage door?

A standard 16 x 7 door has about 112 sq ft of face. Paint covers around 350 to 400 sq ft per gallon, so one coat needs less than half a gallon. With panel grooves, primer, and two finish coats, plan on 1 to 2 gallons of finish and up to a gallon of primer. Raised-panel and carriage-house doors need a bit more because of the added surface area.

Buy a quality exterior acrylic latex. For steel doors, look for a product that says it bonds to metal. Our Sherwin-Williams versus Benjamin Moore comparison helps sort out brands.

How long will a painted garage door last?

With good prep and quality paint, plan on 5 to 10 years on a north or east door. A south or west door often fades and chalks sooner, closer to 4 to 7 years. Steel doors show fewer problems from moisture, while wood needs more care.

Painting a garage door is about the same lifespan as painting the rest of a house, and it is often the first thing to look tired. For a wider view of when to repaint an entire exterior, see how often to repaint a house in Colorado.

Heat and sun on south and west doors

Colorado’s high-altitude sun and dry air are hard on garage doors. A south- or west-facing door can hit surface temperatures well above the air temperature on a summer afternoon. That causes:

  • Fast fading, especially with dark colors
  • Chalking, when the binder breaks down and leaves a powder
  • Bubbling or peeling if paint is applied to a hot surface
  • Warping in wood or thin steel from heat and cold cycling

Some practical rules:

  1. Paint in the shade or in the cooler part of the day. Don’t paint a door in direct afternoon sun. Paint on a hot surface dries too fast and leaves lap marks.
  2. Pick lighter colors on sun-heavy doors. Dark paint absorbs more heat and can stress the panel. Many manufacturers list heat-reflective or “cool” colors.
  3. Use a satin or semi-gloss. They shed dirt and moisture better than flat. Our sheen guide explains the tradeoffs.
  4. Watch the temperature. Most exterior latex wants a surface and air temperature of about 50 F or above, and the air should stay above that for a few hours after painting. Low-temperature formulas can go down to about 35 F.

Hail is another Front Range factor. If your door has dings from a storm, see repainting after hail damage before you decide.

Match the door to the house

Most people pick a color that matches the body, the trim, or the front door. A garage door that blends with the siding makes the house look larger. A contrasting color makes it a feature. If you are choosing a palette, our guide to exterior paint colors for Colorado homes helps, and your HOA may have rules: HOA-approved exterior paint colors.

Doing it yourself versus hiring

A garage door is a reasonable DIY project on a dry day: it is a flat surface with few edges. Use painter’s tape on the weatherstripping and windows, work top to bottom, and keep the door closed while you paint one side at a time. The trickiest part is the seams between panels, where paint can glue the sections together.

Garage door painting is not something every painting company offers. Ask any painter you hire whether it is in their scope, and call us if you want a quote on your home’s exterior painting.

Thinking about the front of your home in Loveland, Boulder, or Estes Park? We will look at the whole exterior and put the details in writing. Call 720-849-7654 or request a free estimate through our contact form.