Use a wire brush and a wide-blade putty knife to remove small areas of defective paint. Scrub under the laps of clapboard siding as well as on downspouts and gutters. For speedier work on metal, a wire brush attachment on an electric drill will remove rust and paint with less effort. For more extensive paint removal, invest in a sharp pull scraper -- a tool with a replaceable blade that's capable of stripping old paint all the way down to bare wood with a single scrape. Hold the scraper so the blade is perpendicular to the wood, apply moderate to firm pressure, and drag it along the surface. Keep the blade flat against the wood so it doesn't gouge the surface.
When the primer is dry, caulk all small joints (less than ¼-inch-wide) in the siding and trim. Most pros use siliconized acrylics—paint won't stick to straight silicones—but Guertin and O'Neil like the new, more expensive urethane acrylics for their greater flexibility and longevity. O'Neil stresses that it's shortsighted to skimp on caulk. "If the joint fails, you're back to square one." Guertin uses the lifetime rating as his quality guide. "I don't expect 35-year caulk will last 35 years, but it should last longer than a 15-year caulk."
If less than half the old paint is left, however, it may be worth stripping it all off. Guertin gets rid of stubborn remnants using shrouded grinders (like the PaintShaver), infrared paint strippers (such as the Speedheater), or chemical strippers (like Multi-Strip), then smooths the wood with a course or two of sanding. When siding (or bank accounts) can't take the shock of a total strip job, Rich O'Neil, of Masterwork Painting in Bedford, Massachusetts, has successfully hidden rough, well-adhered paint under Peel Bond, a thick primer.
Painting your house is one of those maintenance projects that most homeowners undertake at some point, whether it's the outside or the inside. With the exception of hardened DIY-types (you know who you are!), just about all homeowners will hire painters at some point—whether to prepare their home for moving in, or for a sale, or perhaps to kick off a remodel with a new color scheme.
It was a pleasure working with Distinct Painting Co. from the estimate to completion. Kane Robinson (owner) is a true professional, both knowledgeable and friendly. The contract contained the date for painting to begin and they began earlier than expected. Preparation was quite involved as was the painting on my two story house. In spite of 25-40 mph wind gusts, they (Kane and Eric) continued to prep the house for painting. I am a bit of a perfectionist and appreciated the quality and attention to detail and the guarantee. The entire positive experience was worth every penny. My house looks incredible. I couldn't be happier and highly recommend Distinct Painting Co.