Most people think exterior painting is mostly about the painting. It’s not. For a professional crew on a typical MetroWest home, prep work takes 3 to 5 days. The actual painting? 2 to 3. That ratio is intentional — and it’s the single biggest factor in how long your finish lasts.
Paint won’t stick to dirt, mildew, or damaged wood. New England’s weather — freeze-thaw cycles, summer UV, heavy humidity — punishes any finish that wasn’t built on a properly prepared surface. Thorough prep is what separates a paint job that lasts two years from one that lasts twenty.
Review our Exterior Painting Checklist.
A Few Things Worth Knowing
If your home was built before 1978, bring up lead paint before work starts. It can’t be dry-sanded — that creates toxic dust. Professionals use wet-scraping or encapsulation methods instead.
Priming bare wood is not optional. It seals the surface, blocks stains, and creates something the topcoat can actually bond to. Skip it and you’ll be repainting in a fraction of the time.
Timing matters more here than most places. The Boston-area window for exterior painting runs late April through October. You need temps between 50°F and 85°F and at least 48 hours of dry weather after each coat. May, June, and September tend to be the most reliable.
“If painters arrive and start painting within a couple of hours, they’re skipping prep. That’s the clearest red flag to watch for.”
Ready to Paint Your Home’s Exterior?
Ulta Home has painted hundreds of homes across Ashland, Framingham, Wellesley, Weston, and surrounding MetroWest communities. We walk every homeowner through the prep process before a project starts — no surprises.
