“Excellent service. Very thorough ProVia storm door installation. Marcos from Maia Construction was professional, courteous, kept me informed at all times. You should give him a try.”

Expert Windows in Williamstown, Massachusetts
We have worked on enough Williamstown exteriors to know what tends to be waiting behind the old material. Between gilded age mansions and ski-area chalets, most of what we open up here is 60-150+ years old. On top of that, Berkshire County deals with snow load and wind exposure that come with elevation.
Why Williamstown Homeowners Choose Us
10+ Years of Excellence
Over a decade transforming Massachusetts homes. 500+ projects completed with expert precision and attention to detail.
MA Licensed (HIC #204634)
Fully licensed, bonded, and insured. Your investment is protected from start to finish with our comprehensive coverage.
5.0 Star Google Rating
Consistently rated 5 stars across 19 verified reviews. Our customers' satisfaction speaks louder than any advertisement.
Transparent, Fair Pricing
No surprises, no hidden fees. Get detailed written quotes upfront — we honor our prices and never upsell.
Premium Materials Only
We partner with top brands: James Hardie, CertainTeed, Andersen, Therma-Tru. 25-50 year manufacturer warranties included.
Local & Responsive
Charlton-based family business. We answer calls personally, respond same-day, and treat your home like our own.
Expert Windows Services in Williamstown, MA
We have worked on enough Williamstown exteriors to know what tends to be waiting behind the old material. Between gilded age mansions and ski-area chalets, most of what we open up here is 60-150+ years old. On top of that, Berkshire County deals with snow load and wind exposure that come with elevation.
We have been working across Berkshire County since 2015, and the pattern is consistent: the jobs that come back are the ones where somebody rushed the parts nobody sees. Mountain-altitude weather severity is common enough in Williamstown that we price for it rather than acting surprised. Our crews are our own employees. We do not sell the job and hand it to whoever is available, and the person who quoted your project is on site while it runs.
Comprehensive Windows Services in Williamstown, MA
Concretely, on a Williamstown project that means full-frame replacement where the sill or jamb is compromised, rather than hiding it behind an insert; custom-sized units for out-of-square openings, so the seal is even all the way round; Low-E coatings and argon fill matched to which way the wall faces. Materials are rated for the New England climate zone, and we account for longer winters and a shorter installation season than the eastern half of the state. None of that is exotic. It is manufacturer specification, followed properly, which is a lower bar than the industry's reputation suggests and still the thing that decides how the wall looks in year twelve.
What We Offer
Why Williamstown Trusts Maia Construction
Williamstown is 105 miles out for us, which is inside the radius where we can get back quickly. We have worked in West Williamstown, North Williamstown, South Williamstown. That distance is mostly about the boring things: being there for the inspection, and coming back out under warranty without it being an expedition. MA HIC #204634, fully insured, 5.0 stars from 19 Google reviews. If you want to see the work, several of the jobs in our portfolio are within a short drive of Williamstown.
Common Windows Challenges in Williamstown
Our Windows Solutions for Williamstown Homes
Williamstown Neighborhoods We Serve
We provide windows services to every neighborhood in Williamstown, Berkshire County, including ZIP code 01267:
Williamstown Housing Types We Work On
Our team has extensive experience with the housing stock found throughout Williamstown, with homes averaging 60-150+ years old:
Our Windows Process in Williamstown
Measure every opening
Each one individually — in an older home no two are quite the same.
Choose glass and frame
Frame material, glass coating and gas fill chosen per elevation, since a south wall and a north wall want different things.
Written quote and permit
A price per opening and the permit filed by us, with egress checked before anything is ordered.
Protected removal
Interior floors and furniture covered; one opening is closed up before the next is opened.
Set, flash and air-seal
Shimmed at the load points, foamed with low-expansion only, and flashed so water sheds outward.
Trim, inspection and handover
Municipal inspection, then we show you how each unit operates and cleans.
Cost Range
$650–$1,400 per opening installed, depending on size and frame
Timeline
a single day for a handful of openings, two to three for a full house
Warranty
manufacturer coverage on glass seals and hardware, backed by our own 5-year guarantee
5.0★
Google Rating
500+
Projects Done
105mi
From Williamstown
FREE
Estimates
Windows Transformations
See the quality of our windows work in Berkshire County


Whole-House Siding Replacement
Atkinson, NH • Siding
Rear elevation — the orange cedar gable and two mismatched greys replaced with one vinyl exterior.
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Complete Home Renovation
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Exterior Transformation
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What Our Customers Say
5.0 across 19 Google reviews — from homeowners near Williamstown and across Massachusetts.
“Marcos and his team do excellent work. They are very professional and courteous. We highly recommend them!”
“We had Maia Construction replace siding and trim and were very pleased with all of their work. They were extremely professional and timely and we had a very good experience.”
What Our Customers Say
Real verified reviews from Massachusetts homeowners
Windows FAQs — Williamstown, MA
Common questions from Williamstown homeowners about windows
Do you pull the permits, or do I?
We handle it. Filing with Williamstown, booking the inspection slots and being there when the inspector arrives are all ours under HIC #204634. You should not be chasing paperwork for work you are paying for.
What usually goes wrong with windows on homes in Williamstown?
The three we see most often here: out-of-square openings in older homes, where a stock unit will never seal properly; rotted sills under windows that were flashed poorly the first time; and original single-pane sashes with failed glazing putty and no weatherstripping left. Locally, mountain-altitude weather severity comes up repeatedly on gilded age mansions.
What happens if you find rot once you have started?
It gets photographed and shown to you the same day. Because the repair rate is already agreed, finding rot changes the invoice by a known amount rather than an argued one.
How long will window replacement take on my Williamstown home?
Plan on a single day for a handful of openings, two to three for a full house. Berkshire County weather does move schedules — longer winters and a shorter installation season than the eastern half of the state is the usual reason — so we build a weather margin into the date we give you rather than promising one we cannot hold.
What does window replacement cost in Williamstown?
Our Williamstown projects generally land at $650–$1,400 per opening installed, depending on size and frame. The spread comes down to size, material and what we find once the old work comes off — which is why our written quote includes an agreed rate for hidden damage rather than a guess. Estimates are free and we do not price on the doorstep.
Can you match existing work on part of the house?
Sometimes. On a gilded age mansions we can often match a single elevation closely enough that it reads as original. Where the existing material has faded past matching, we will say so rather than sell you a repair you will be unhappy with.
Other Services in Williamstown
Windows Near Williamstown
Service Area: Williamstown, MA
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