It is the question we get on almost every exterior estimate, and the honest answer is that it depends far less on the paint than most people expect. Seven years is a good average. Whether you land above or below it comes down to preparation and timing.
Seven Years Is the Number to Plan Around
On a typical Middle Tennessee home, a properly prepped exterior repaint should give you around seven years. That is an average, not a promise. South and west facing walls take the worst of the sun and usually show wear first, and trim tends to go before siding does.
Preparation Is What Actually Decides It
Two houses painted on the same street with the same product can age completely differently. The difference is almost always what happened before the first coat went on. Washing removes dirt, chalking, and mold so the new paint can bond to a clean surface. Scraping and caulking deal with the places where water would otherwise get behind the finish.
Paint applied over a dirty or failing surface is sitting on top of the problem rather than solving it. It will look fine for a season and then let go.
Do Not Wait Until It Is Peeling Badly
This is the most expensive mistake we see. Once old paint is peeling badly, the prep required to fix it goes up sharply, and so does the price. Repainting on schedule almost always costs less than waiting until the failure is obvious from the street.
Not sure where your exterior stands?
Rick will come out, look at the actual surfaces, and tell you straight whether it needs doing this year.
Weather Decides the Schedule, Not the Calendar
The surface needs to stay above 34 degrees for at least 24 hours after application. Air temperature at noon is not the number that matters, the surface overnight is. If the forecast will not hold, we reschedule rather than risk the finish. Between coats we usually get about an hour, though humidity and temperature change that, so we check the surface rather than the clock.
What to Ask Whoever You Hire
- Ask what the prep includes: washing, scraping, and caulking should be named in the proposal, not assumed.
- Ask about weather rules: a crew with no temperature policy is a crew that will paint on a day it should not.
- Ask for proof of coverage: liability insurance and workers compensation, with certificates you can actually see.
More detail on how we handle this is on our exterior painting page, and the FAQs cover the weather and dry time questions in full.
