“Marcos did an amazing job. He spent a lot of time going over the plans and making sure everything was right. He kept me…”

Expert Windows in Chelmsford, Massachusetts
If you are weighing window replacement on a Chelmsford home, the housing stock here narrows the sensible options considerably. Chelmsford is historic New England character with tree-lined streets, and its colonial revivals share a fairly predictable set of exterior problems. Add freeze-thaw cycling that opens any joint left unsealed, and the details that matter become obvious.
Why Chelmsford 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 Chelmsford, MA
If you are weighing window replacement on a Chelmsford home, the housing stock here narrows the sensible options considerably. Chelmsford is historic New England character with tree-lined streets, and its colonial revivals share a fairly predictable set of exterior problems. Add freeze-thaw cycling that opens any joint left unsealed, and the details that matter become obvious.
Choosing who does window replacement on a Chelmsford home matters more than choosing the material. Most of what fails early fails at a joint, a flashing lap or a fastener line, and none of those show up in a brochure. On Chelmsford homes specifically, aging clapboard siding and single-pane windows from the 1960s are what we plan around before a crew is booked. One crew, start to finish, and one person you call. It is a small company and that is deliberate.
Comprehensive Windows Services in Chelmsford, MA
The specification we work to in Chelmsford is not complicated — Low-E coatings and argon fill matched to which way the wall faces; proper sill pan flashing, which is the detail that decides whether the opening leaks in ten years; low-expansion foam only, so the jambs are not bowed inward before the first winter. Materials are rated for the New England climate zone, and we account for the full New England temperature range, from below zero in January to the low nineties in July. Every one of those is in the manufacturer's own installation guide. Following it is most of the job.
What We Offer
Why Chelmsford Trusts Maia Construction
From the Charlton shop, Chelmsford is roughly half an hour. We have jobs behind us in North Chelmsford, West Chelmsford, Chelmsford Center. 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 Chelmsford.
Common Windows Challenges in Chelmsford
Our Windows Solutions for Chelmsford Homes
Chelmsford Neighborhoods We Serve
We provide windows services to every neighborhood in Chelmsford, Middlesex County, including ZIP code 01824:
Chelmsford Housing Types We Work On
Our team has extensive experience with the housing stock found throughout Chelmsford, with homes averaging 40-80 years old:
Our Windows Process in Chelmsford
Measure every opening
Every opening measured at three points. Older frames are rarely square, and averaging the difference is how units end up out of seal.
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
Priced individually, so you can phase the work if you would rather do it in stages.
Protected removal
We work opening by opening so the house is never left open, and the interior stays covered throughout.
Set, flash and air-seal
Sill pan, low-expansion foam, and flashing tape lapped in the right order.
Trim, inspection and handover
Trim finished, every sash operated and adjusted, and the inspector signed off before we invoice.
Cost Range
$650–$1,400 per opening installed, depending on size and frame
Timeline
one to three days for a typical whole-house replacement
Warranty
lifetime glass and frame coverage from the manufacturer, plus our 5-year workmanship warranty
5.0★
Google Rating
500+
Projects Done
20mi
From Chelmsford
FREE
Estimates
Windows Transformations
See the quality of our windows work in Middlesex County


Whole-House Siding Replacement
Atkinson, NH • Siding
Rear elevation — the orange cedar gable and two mismatched greys replaced with one vinyl exterior.
See the full project →Recent Projects
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Watch our team install windows across Massachusetts

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 Chelmsford and across Massachusetts.
“Marcos installed new siding on my house. Their work is excellent. They work long hard hours. They were very respectful of my time and property. I highly recommend them.”
“Excellent and professional work by Marcos and crew.”
What Our Customers Say
Real verified reviews from Massachusetts homeowners
Windows FAQs — Chelmsford, MA
Common questions from Chelmsford homeowners about windows
How long will window replacement take on my Chelmsford home?
Plan on one to three days for a typical whole-house replacement. Middlesex County weather does move schedules — the full New England temperature range, from below zero in January to the low nineties in July is the usual reason — so we build a weather margin into the date we give you rather than promising one we cannot hold.
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.
What parts of Chelmsford do you cover?
All of it, including Chelmsford Center, West Chelmsford, South Chelmsford and the rest of ZIP 01824. We also work throughout Middlesex County.
Which windows do you install?
We work mainly in wood-clad, triple-pane vinyl, vinyl double-hung, and we are certified installers for Andersen, Harvey, Pella. Which of those makes sense for your Chelmsford home depends on exposure and budget, and we will tell you when the cheaper option is the right one.
Do you pull the permits, or do I?
We do. We file with the Chelmsford building department, schedule the inspections and meet the inspector on site. As a Massachusetts Home Improvement Contractor (HIC #204634) that is our responsibility, not yours.
What warranty comes with the work?
You get lifetime glass and frame coverage from the manufacturer, plus our 5-year workmanship warranty. Both are in writing at handover. The workmanship warranty is ours, not a third party's, and it is the one that actually gets used.
Other Services in Chelmsford
Windows Near Chelmsford
Service Area: Chelmsford, MA
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