Exterior paint protects siding and trim from sun and rain. When it peels, cracks or fades, water can reach the wood underneath. A lasting exterior paint job depends on thorough prep and the right weather.
Sifixit is a free referral service. Call the number on this page and you will be connected with an independent painting provider where one serves your area. Calling costs nothing and you are never obliged to hire anyone.
Signs your exterior needs painting
Look for these around the house.
- Peeling, cracking or blistering paint
- Bare wood showing on siding or trim
- Chalky residue when you rub the paint
- Faded color on sunny walls
- Caulk that has cracked or pulled away
- Mildew on siding

What to do right now
In homes built before 1978, old exterior paint may contain lead. Do not scrape or sand it until it has been tested.
- Note where paint is peeling most
- Check trim around windows and doors for rot
- Choose colors, and check any HOA rules
- Plan for dry weather
- Get written quotes
- Ask about lead safe practices for older homes
What exterior painting involves
Washing
Siding is cleaned to remove dirt and mildew so paint sticks.
Scraping and repairs
Loose paint is removed and damaged wood is repaired.
Priming and caulking
Bare wood is primed and gaps are caulked.
Painting
Usually two coats on siding and trim.

How exterior painting is done
- Plants, walkways and windows are protected.
- The house is washed and allowed to dry.
- Loose paint is scraped and damaged wood repaired.
- Bare wood is primed and gaps caulked.
- Siding and trim are painted, and the site is cleaned up.
Weather and timing
- Paint on dry days within the temperature range on the can
- Avoid painting in direct, very hot sun where possible
- Avoid painting before rain or heavy dew
- Plan exterior work for your area’s driest season
- Allow extra days for weather delays

Questions to ask before you hire
- How will you prepare the surfaces?
- Will you repair damaged wood?
- What paint will you use, and how many coats?
- Are you lead safe certified?
- What warranty do you give?
Frequently asked questions about exterior house painting
How often should I paint my house exterior?
It depends on the climate, siding and paint, but many homes need it roughly every 5 to 10 years.
How long does exterior painting take?
Many homes take a few days to a week or more, depending on size and weather.
Can I paint vinyl siding?
Yes, with the right paint and light colors that will not cause warping. Ask your painter.
Do I need to be home?
Usually not, as long as the painters can reach outdoor water and power.
Learn more
Our main painting guide covers the wider picture, including what affects the cost and when to call a professional.
Looking for exterior house painting? Call the number on this page to be connected with an independent local provider. For more background, see the EPA’s lead paint rules.
This site is a free service to assist homeowners in connecting with local service contractors. All contractors are independent and this site does not warrant or guarantee any work performed. It is the responsibility of the homeowner to verify that the hired contractor furnishes the necessary license and insurance required for the work being performed. All persons depicted in a photo or video are actors or models and not contractors listed on this site.
Helpful guides
- How to choose paint sheen: flat, eggshell, satin, semi gloss and glossPaint sheen runs from flat, which hides flaws but marks easily, to gloss, which is very durable but...