Andover’s housing stock includes pre-war homes near the town center with original cedar clapboard, 1960s and 1970s colonials throughout Shawsheen Heights still wearing their first aluminum or vinyl siding, and newer homes with wood composite that’s starting to show moisture damage at the seams. Each material fails differently, but the underlying issue is usually the same — water getting behind the siding where it doesn’t belong.
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Most siding failures in Andover aren’t caused by the siding material itself — they’re caused by what’s behind it. Inadequate moisture barriers, missing flashing at window and door transitions, and trapped moisture in the wall cavity lead to rot, mold, and structural damage that’s invisible from the outside until it’s advanced.
Full vinyl siding replacement for most Andover homes runs $35,000–$45,000. Hardie fiber cement or Everlast composite siding starts at $60,000+ depending on home size, trim scope, and site conditions. Partial siding jobs — one elevation or an addition — cost proportionally less. We provide a detailed written estimate after inspecting the home and measuring every surface.
Most full siding replacements take 2–3 weeks from start to finish, depending on house size, trim scope, and weather. Homes with extensive trim replacement or insulation upgrades may take longer. Your project manager provides a clear timeline at the start and updates you on progress throughout.
A proper wall system includes house wrap (weather barrier), flashing at every window, door, and penetration, and either a drainage mat or rainscreen system that creates an air gap for moisture to escape. This layered approach is what keeps water out of the wall cavity. The siding itself is the outermost layer — important, but not the whole system.
Yes — and it’s the most cost-effective time to do it. When the old siding comes off, we can add exterior continuous insulation (rigid foam or mineral wool Comfortboard) before the new siding goes on. This wraps the house in an unbroken thermal layer, eliminates thermal bridging through studs, and significantly improves energy performance. Many Andover homes from the 1960s through 1980s have minimal wall insulation — this upgrade makes a noticeable difference.
Yes — we replace all exterior trim with rot-proof cellular PVC as part of every siding project. Corners, window casings, door frames, fascia, rake boards, and band boards all get replaced. Leaving old wood trim behind new siding defeats the purpose — trapped moisture behind fresh siding rots old wood trim even faster.
Massachusetts building code generally does not require permits for like-for-like siding replacement. However, if the project involves structural changes, adding insulation that changes the wall assembly, or modifying window or door openings, permits may be required through the Town of Andover Building Division. We handle all permitting when required.
D&G Exteriors is a CertainTeed 5-Star Siding Contractor — their highest siding certification — as well as an Everlast Advantage Member and Hardie Contractors Alliance member. We’re also Google Guaranteed and BBB Accredited with an A+ rating. These certifications require manufacturer training and verified installation quality standards.
In addition to siding installation, we provide roof replacement, roof repair, deck building, window installation, and metal roofing in Andover. Visit our Andover service area page for a full overview of everything we offer, or browse all of our Essex County service areas. You can also learn more about D&G Exteriors on our homepage.
Use our siding cost calculator to get an instant estimate for your project. Select your home size, siding material, and project details to see a personalized price range. Your estimate includes full tear-off, weather barrier and flashing, PVC trim, and cleanup.
See what new siding costs for your home in under 60 seconds
D&G Exteriors is a trusted siding company serving Andover, MA. We are a Certainteed 5-Star Siding company, and members of the James Hardie Alliance and the Everlast Advantage program. Over 200 five-star Google reviews. Fill out the form below and we will schedule an appointment to review your siding in person and provide a detailed estimate tailored to your home.
