Envelope & Durability
Windows and doors that seal the house, not just fill the hole.
Rated glass, insulated frames, and an install that's flashed and foamed like the wall around it — so the room stops feeling like the weather outside.
What can we help you with?
The problem
What old windows and doors are doing
Windows are a small share of the wall but a large share of the complaints. When they fail, you feel it before you see it.
Cold pouring off the glass
Sitting by a single-pane or failed double-pane window in January feels like sitting by an open door.
Condensation and fogging
Moisture between the panes means the seal is gone; moisture on the inside means the glass is too cold.
Sashes that stick, rattle, or won't lock
A window that doesn't close tight is a leak you're paying to heat and a security problem.
A front door that lets the street in
Light around the edges, a threshold you can feel the wind through, and noise that never quite stops.
What we install
What we install
Windows and doors specified to the wall they're going into and the climate they'll face.
Replacement windows
Double- and triple-pane, low-e, argon-filled units in vinyl, fiberglass, or clad wood, sized to the opening.
Full-frame replacement
When the old frame is rotten or out of square, we take it back to the rough opening and rebuild it right.
Entry and patio doors
Insulated fiberglass and steel entry doors, sliding and hinged patio doors, with real thresholds and weatherstripping.
Flashing and air sealing
Sill pans, flashing tape integrated with the housewrap, and low-expansion foam at every gap.
Impact-rated windows and doors
For Florida and coastal homes: units rated for wind pressure and debris, installed to the local code.
Interior finish
Casing, stops, and sills finished to match, so the job looks like it was always there.
Compare
Insert or full-frame?
Two honest ways to replace a window. Which one the house needs depends on what the old frame looks like once the sash is out.
Insert (pocket) replacement
- Best for
- Frames that are square, dry, and sound; keeping existing interior and exterior trim
- What's involved
- New unit set inside the old frame; exterior capped, interior stops replaced
- Envelope result
- Good, when the old frame is sealed to the wall; the frame itself stays
- Pairs with
- Attic and wall insulation; new storm doors
Full-frame replacement
- Best for
- Rotten or out-of-square frames; siding or trim being replaced anyway; the best possible air seal
- What's involved
- Old frame removed to the rough opening; new sill pan, flashing, insulation, and trim
- Envelope result
- Best: the window is integrated with the housewrap like new construction
- Pairs with
- Siding replacement; dense-pack wall insulation
We tell you which one each opening needs after we've seen the frames. Most homes end up with a mix.
How it fits the house
How windows fit the rest of the envelope
A window is only as good as the wall it's sealed to. The best-rated unit installed without a sill pan and flashing tape will leak air around the frame and, eventually, water into the wall. So we treat every replacement as envelope work: the opening is flashed, the gap is foamed, and the exterior is tied back into the housewrap or the siding.
Windows also change the load on the heating and cooling system. Old single-pane glass loses heat fast and radiates cold into the room; a low-e, argon-filled unit holds the room's temperature at the glass, which is why a room can feel warmer at the same thermostat setting. That's part of the math when we size a heat pump.
When siding is in the plan, the windows go in first so the new siding laps over the flashing the right way. When insulation is in the plan, the windows are the last of the big leaks we close. The order matters, and we sequence it.
Cost
Cost, and how we bring it down
Windows are priced per opening by size, style, glass package, and whether the frame is an insert or a full-frame replacement. The plan lists every opening so you can do the whole house or the worst rooms first.
Energy-rated windows and doors qualify for utility rebates in several of our states, and where a window project is part of a larger weatherization job the program incentives can cover more. We identify and file what applies.
Financing is available for qualified homeowners, so a whole-house window project can be spread out instead of paid at once.
Federal incentives for windows and doors changed in 2025. We confirm exactly what applies to your project at the assessment, and a tax professional reviews anything tax-related before it goes in your plan.
Programs we help you apply for
ENERGY STAR-rated units
the rating utility programs and manufacturers key incentives to
Mass Save and the New England utility programs
window and door rebates where offered, by state
Florida My Safe Florida Home
state grants for wind-mitigation upgrades, including impact openings
Eligibility and amounts change by state and by year; we confirm what applies to your project at the assessment.
Real trucks. Real crews. Real homes.
Proof you can see.
Very professional, team work, and they clean after when the project is done. I’m so impressed that it only took 2 days to finished. Thank you Ben for replacing my new roof!
Ahmad and Team Sunshine installed 25 solar panels on our home last fall. I met Ahmad through a referral from a neighbor who had Team Sunshine install solar on his house 2 years prior. He told me how happy he was with their company and how responsive the team had been throughout the whole process. He told me two years later he was still in touch with them. I had been researching solar for a while and had just had a no show for a scheduled appointment from one company and another who wasn’t calling back…
Great company, very happy with the installation . I highly recommend this great people!!
FAQ
Questions people actually ask
Plain answers, no sales voice. If yours isn’t here, the callout below reaches a person.
Do I need new windows, or would insulation help more?
For most homes, air sealing and attic insulation pay back faster than windows, so we look at the envelope as a whole before recommending either. Windows come first when the glass has failed, the frames are rotten, or the room is unlivable in winter. Often the honest plan does the attic this year and the windows next.
Double-pane or triple-pane?
Triple-pane holds the room's temperature at the glass noticeably better and is quieter, which matters most on north-facing rooms and busy streets in cold climates. Double-pane low-e is the right answer for many homes and for Florida, where the glass is doing a different job. We spec by orientation and room.
Can you replace windows in winter?
Yes. Each opening is out for well under an hour, we work one at a time, and the house is closed up before we move on. Winter is often the easiest time to schedule.
Will new windows fix condensation?
Condensation between the panes, yes; that window's seal has failed. Condensation on the inside of the glass is the room's humidity finding a cold surface, and a warmer glass surface helps a great deal, but we'll also look at ventilation and humidity so the moisture has somewhere to go.
What about doors?
An exterior door is a big leak when the threshold, weatherstripping, or the door itself has failed. An insulated fiberglass or steel door with a proper threshold and adjustable weatherstripping stops the draft and the noise, and it's usually a same-day install.
What are impact-rated windows?
Windows and doors built and tested to withstand wind pressure and flying debris in a hurricane, installed to Florida's code requirements. On Florida homes they replace shutters for the openings they cover and can qualify for wind-mitigation insurance credits.
Still have a question?
A Home Advisor picks up — no phone tree.
Two climates, one team
Where you live changes the glass, and our plan does too.
In New England and the Mid-Atlantic the window's job is holding heat and blocking drafts, so low-e glass, tight frames, and a sealed install lead. In Florida the job is blocking heat, humidity, and wind, so solar-control glass and impact-rated units installed to code lead instead.
Where we work
Get started
Let's see what your home qualifies for.
A free assessment, in-home or virtual. No pressure — just a plan built for your house.
Modernizing Homes Since 2019 · Made with ♥ in Massachusetts