Deck Builder in Somerville, MA

Custom composite decks for Somerville homes — Trex and TimberTech certified installer. Designs built for tight urban lots, multi-family buildings, and rooftop applications where every square foot of outdoor space counts. Google Guaranteed. 150+ five-star reviews.

Beautiful custom deck installation in Somerville, MA by D&G Exteriors, featuring sturdy railings and elevated outdoor space.
D&G Exteriors is a Google Guaranteed company!
Certainteed Saint-Gobain Shingle Master Certification
D&G Exteriors is a Trex Certified deck installer!
Better Business Bureau A+ Accreditation
D&G Exteriors is Certainteed 5-Star siding contractor certified.
D&G Exteriors is a timertech pro contractor!
James Hardie Elite Preferred Certification
Stunning elevated deck built by D&G Exteriors in Somerville, MA, offering a spacious outdoor living area.

Why Somerville Homeowners Choose D&G for Deck Building

Outdoor space is scarce in Somerville. At 4.2 square miles with 81,000 residents, the city is the densest in New England — and backyards are either tiny or nonexistent. A well-designed deck turns a narrow rear yard, an unused flat roof section, or an awkward side space into the outdoor room your property doesn’t otherwise have.

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Somerville's Highest-Rated Deck Builder!

5.0 Stars Across 150+ Reviews

How D&G Builds a Deck in Somerville

Every deck starts with one question: how do you want to use this space? In Somerville, the answer matters more than most places because the space is limited and the design has to be smart.

Custom-designed deck by D&G Exteriors in Somerville, MA, featuring durable materials and modern railings.
FREQUENTLY ASKED ・ ANSWERS TO YOUR QUESTIONS

FAQs About Deck Building Services in Somerville, MA

What is the first step you take in a new deck project?

Understanding how you plan to use the space. In Somerville, outdoor space is at a premium, so the answer shapes everything — entertaining, a quiet retreat, container gardening, a grilling station, a play area. The layout, size, materials, and structural requirements all flow from how you’ll actually live on the deck.

Most composite deck projects range from $25,000 to $75,000+ depending on size, materials, railing systems, and features. Somerville’s urban conditions — elevated builds, multi-family attachment points, rooftop applications — can add structural complexity that pushes toward the higher end. Detailed estimate after on-site consultation.

Trex and TimberTech/Azek. Both are premium composites that won’t rot, warp, or splinter. We help you choose based on color, texture, budget, and use. As a certified installer for both brands, we activate full manufacturer warranties.

In many cases, yes — but it depends on the building’s structural capacity and local zoning. Rooftop decks require structural engineering review, proper waterproofing of the roof membrane below, railing systems that meet code, and permitting. We assess feasibility before committing to a design.

Yes. Somerville requires building permits for new decks and most major replacements. The city’s Inspectional Services department reviews structural plans and conducts inspections at key stages. We handle all of it — plan preparation, submission, and inspection coordination.

Yes — and that’s the norm here. Zero lot lines, narrow side yards, and compact rear spaces are standard Somerville conditions. We design around the constraints with creative layouts, multi-level designs, and built-in features that maximize every square foot without violating setback requirements.

Pressure-treated is cheaper upfront but needs annual staining, sealing, and maintenance. It warps, splinters, and degrades in Middlesex County weather — and on a Somerville deck where neighbors are close by, a deteriorating deck is hard to ignore. Composite costs more initially but requires zero maintenance, won’t rot, and holds its appearance for decades.

Yes. If your existing deck is failing — rotted framing, wobbly railings, soft spots — we tear it down, inspect the ledger connection and building attachment, and rebuild to current code. Many older Somerville decks were built with substandard framing or before current ledger flashing requirements existed.

We provide complete roofing services (roof replacement and roof repair), metal roofing, siding, windows, and decks in Somerville, MA.