Full-frame and insert window replacements for Boston homes — proper flashing, sealed transitions, PVC trim, and energy-efficient glass for brownstones, triple-deckers, Victorians, and multi-family buildings. Google Guaranteed. 150+ five-star reviews.
Boston’s windows span two centuries of construction. Beacon Hill has original 1800s wood sash with wavy glass. Back Bay brownstones have tall, narrow double-hungs sized for 12-foot ceilings. Dorchester triple-deckers have three generations of replacements stacked on top of each other. Every neighborhood brings different window conditions and different installation requirements.
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Boston’s housing spans from 1790s Beacon Hill to 1930s Dorchester — but the window problems share common threads. Original wood that’s rotted through, first-generation vinyl that’s fogging and drafty, and openings that were never properly flashed when the last replacement went in.
Most whole-home projects range from $25,000 to $65,000+ depending on window count, frame type, and installation method. Triple-deckers and brownstones with more openings and taller ceilings will be higher — a full triple-decker replacement across all three floors is a larger project than a single-family home. We provide a detailed written estimate after measuring on site.
It depends on the condition of your existing frames. If the wood is solid, square, and dry, inserts save time and cost. If there’s rot or water damage — which is common on Boston’s pre-war brownstones and triple-deckers — full-frame replacement is the better long-term investment because it lets us properly flash and seal the opening. We inspect every window and give an honest recommendation.
It depends on the condition of your existing frames. If the wood is solid, square, and dry, inserts save time and cost. If there’s rot or water damage — which is common on Boston’s pre-war brownstones and triple-deckers — full-frame replacement is the better long-term investment because it lets us properly flash and seal the opening. We inspect every window and give an honest recommendation.
Most single-family or single-unit projects take 3–5 days. A full triple-decker across all three floors takes 1–2 weeks depending on window count and installation method. Brownstones with tall ceilings and oversized openings can take longer per unit. We protect interiors throughout and coordinate with tenants on multi-family buildings.
Yes. Attached housing requires extra care — working on shared walls, managing access from the street side, and maintaining the building’s streetscape appearance. On many Boston blocks, window style and proportions matter because the buildings read as a unified row. We help select windows that complement the architecture while delivering modern energy performance.
Yes — often significantly. Many Boston homes still have original single-pane windows or early double-pane replacements from the 1990s that have lost their seal. Modern low-E coated, argon-filled double- or triple-pane windows dramatically reduce heat loss in winter and heat gain in summer. In a triple-decker where heating costs are split across units, the savings add up across the entire building.
Yes. Boston’s Inspectional Services Department (ISD) requires building permits for window replacement. We handle the application, coordinate inspections, and ensure the work meets current energy code. In certain historic districts, the Boston Landmarks Commission may also review exterior changes — we’ll flag that during consultation if it applies to your property.
Google Guaranteed, BBB Accredited A+, and NRCA Affiliated. We also hold CertainTeed Master Craftsman for roofing and 5-Star for siding — full-envelope expertise that matters because windows are part of the same weatherproofing system as the roof and walls.
We provide complete roofing services (roof replacement and roof repair), metal roofing, siding, windows, and decks in Boston, 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.
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D&G Exteriors is a trusted window replacement company serving Boston, 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.
