Sunroom Builders in New England

Snow on the glass, coffee in your hand, 70 degrees where you’re sitting. Three-season rooms and four-season sunrooms built for exactly this.

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Built for the View New England Is Known For

Foliage season. First snow. A storm rolling across the lake. New England puts on the best show in the country — and then makes it too cold to watch from a deck chair. That’s the problem the region’s best sunroom builders exist to solve. Decks US designs and builds multi-season rooms across all six of our states: glass-walled rooms that hold the view and lose the wind chill, from breezy three-season porch conversions to fully conditioned four-season sunrooms you’ll use on the coldest morning in January.

Three Seasons or Four — An Honest Fork in the Road

01.

Three-season room

— windowed walls, no HVAC. Comfortable from the first thaw deep into November. The best value-per-day upgrade in outdoor living.

02.

Four-season sunroom

— insulated, heated, Low-E glass. True year-round living space that can count toward your home’s square footage — and its appraisal.

03.

Porch & deck conversions

— if your existing structure is sound, it may already be halfway to either one. We verify free.

Glass Rooms, Engineered Like Any Other Structure

Reasons to believe: a room made mostly of glass has zero tolerance for shortcuts here. So the roof is calculated for your town’s snow load. The foundation sits below the frost line. Every glazing connection is flashed against wind-driven rain. Four-season rooms get insulated Low-E glass that keeps January’s heat in and July’s out. And every room is permitted and inspected — because your inspector will absolutely want to see this one, and ours pass.

sunroom addition on New England home with vinyl siding

sunroom dining space with dark wood table and mixed cushion colors

What Changes When the Room Goes In

Clients describe the same shift: breakfast moves there. The plants move there. The dog claims the sunniest corner by week two. A sunroom doesn’t just add square feet — it adds the best square feet in the house, the ones with the weather on the other side of the glass.

selected projects

Explore our recent project

white sunroom addition attached to New England colonial home

white sunroom with two walls of windows and comfortable seating

sunroom dining area with large windows and backyard views in New England

sunroom addition attached to New England colonial home

Completed

Multi-level Trex deck with pergola Wellesley MA

Massachusetts

Multi-Level Composite Deck Wellesley MA

Completed

Western Red Cedar wraparound deck Wolfeboro, NH by Decks US

New Hampshire

Western Red Cedar Lakeside Deck, Wolfeboro NH

Completed

Elevated AZEK PVC deck Old Saybrook, CT by Decks US

Connecticut

Elevated Waterfront Deck in Old Saybrook, CT

Service Areas

Where We Build

Local crews across New York & New England — find your team and direct line, or enter your ZIP.

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Massachusetts & New York

Tinos Inc.

Greater Boston, MetroWest, Cape Cod, Westchester, Hudson Valley & Long Island.

(617) 231-9842

MANY

Connecticut, Rhode Island, Vermont & New Hampshire

Hartford, Providence, Newport, Burlington, Manchester, the Seacoast & beyond.

(978) 601-4092

CTRIVTNH

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FAQ — Sunrooms & Multi-Season Rooms

What's the real difference between three-season and four-season?

Insulation and heat. Three-season rooms are unconditioned — glorious from spring through late fall, chilly in deep winter. Four-season sunrooms are built and conditioned like the rest of your house. Our sunroom builders will price both paths so you can choose with real numbers.

Can you convert my screened porch into a sunroom?

Very often, yes — it’s one of the highest-value conversions we do, if the roof and foundation check out. We inspect free and quote it in one itemized number.

Does a sunroom add home value?

Yes — a four-season room adds appraisable conditioned space; a three-season room adds the living space buyers in this region ask for by name. Both add the value you feel daily: use.

How long does a sunroom project take?

Conversions can run a few weeks; new four-season additions longer, driven by permitting and foundation work. Your free estimate includes a firm timeline.