Lexington’s full-service window contractor: full-frame replacements, insert windows, and complete exterior trim packages. Proper flashing, sealed transitions, and energy-efficient glass for every home in town. Google Guaranteed. 150+ five-star reviews.
Lexington homes are among the highest-value properties in Greater Boston — from antique colonials near the Battle Green to mid-century ranches and newer custom builds throughout town. When windows reach end of life, Lexington homeowners expect a replacement that matches the quality of the home — proper weatherproofing, premium trim, and craftsmanship that holds up to scrutiny.
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Lexington homes span centuries of construction — antique homes with original hand-built windows, mid-century builds with aluminum or early vinyl, and newer construction with windows that may already be underperforming. The right approach depends on the home’s age, frame condition, and what the homeowner is trying to achieve.
Most whole-home window replacement projects in Lexington range from $25,000 to $65,000+ depending on the number of windows, frame type (vinyl, fiberglass, wood), and whether you need full-frame or insert installation. Lexington’s larger homes with more windows and non-standard openings tend toward the higher end. We provide a detailed written estimate after measuring on site.
It depends on the condition of your existing frames. If the wood frame is solid, square, and dry, an insert window saves time and cost. If the frame shows rot, water damage, or has been patched repeatedly, full-frame replacement is the better long-term investment. Many of Lexington’s older homes need full-frame — we inspect every opening and give you an honest recommendation.
We install Andersen, Marvin, and Pella for homeowners who want premium fiberglass or wood-clad options — popular choices in Lexington where the window needs to match the home’s character. For high-quality vinyl, we work with Harvey and Mathews Brothers. We help you choose based on your goals — energy performance, aesthetics, maintenance preference, and budget.
Most whole-home window projects take 3–5 days of on-site work depending on the number of openings and whether it’s full-frame or insert installation. Individual window replacements can be completed in a day. We stage materials carefully and protect landscaping, flooring, and interior spaces throughout the project.
Yes — most Lexington homeowners see a noticeable improvement, especially those replacing original single-pane or early double-pane windows. Modern low-E coated, argon-filled double- or triple-pane windows significantly reduce heat loss in winter and heat gain in summer. We select the glass package based on each window’s orientation and exposure for the best performance.
Yes. Lexington has a significant stock of antique and historic homes with non-standard openings, original trim details, and architectural considerations. We custom-order windows to fit existing openings and pay careful attention to exterior proportions and trim profiles so the replacement windows complement the home’s character.
Yes. The Town of Lexington requires a building permit for window replacements. We handle the permit application, schedule inspections, and make sure everything meets current energy code. You don’t need to coordinate with Town Hall — that’s included in the project.
We’re Google Guaranteed, BBB Accredited with an A+ rating, and NRCA Affiliated. We also hold CertainTeed Master Craftsman certification for roofing and CertainTeed 5-Star for siding, which reflects our full-envelope expertise — windows are part of the same weatherproofing system. Every window project gets the same crew, standards, and project management as our roofing and siding work.
We provide complete roofing services (roof replacement and roof repair), metal roofing, siding, windows, and decks in Lexington, MA.
Wondering what new windows will cost? Use our free window replacement estimator to get an instant price range based on the number of windows, material, and options you choose. Enter your details below and see your estimate in under 60 seconds.
See what new windows cost for your home in under 60 seconds
D&G Exteriors is a trusted window replacement company serving Lexington, MA. We offer a variety of window options and manufacturers and both insert style and new construction replacements. Over 200 five-star Google reviews. Fill out the form below and we will schedule an appointment to review your roof in person and provide a detailed estimate tailored to your home.
