REFRESH YOUR HOME: 50% Off Installation + Financing up to 20 Years + $250 Online Booking Bonus
Portland, ME · Local Install Crew
Replacement Windows in Portland, ME
Triple-pane, energy-efficient windows built for New England winters.
About this product
Replacement Windows for Portland homes
Every replacement window we install is custom-measured for your opening and sized to the fraction of an inch. Triple-pane glass with low-E coatings, foam-filled frames, and factory-certified installation cut drafts, quiet the house, and lower heating bills. Every window is covered by a limited lifetime warranty and installed by W-2 crews — never subcontractors.
- ✓ENERGY STAR® 7.0 certified
- ✓Triple-pane low-E glass
- ✓Foam-filled insulated frames
- ✓Custom-sized to the opening
- ✓Full-day install for most homes
- ✓Limited lifetime warranty
Our process
How we install Replacement Windows in Portland
- 1
Free in-home consultation and precise opening-by-opening measurement
- 2
Custom manufacture — every window built to your exact opening size
- 3
Install-day protection: floors, furniture, and landscaping covered
- 4
Old-unit tear-out with EPA Lead-Safe practices on pre-1978 homes
- 5
Professional install, insulation, flashing, and exterior trim/capping
- 6
Full cleanup, walkthrough inspection, and warranty registration
How it compares
Coastal Triple-Pane vs. Standard Double-Pane
| Feature | Coastal Triple-Pane | Standard Double-Pane |
|---|---|---|
| Glass panes | 3 with low-E and argon | 2 with basic low-E |
| Frame | Foam-filled vinyl or fiberglass | Hollow vinyl |
| ENERGY STAR rating | 7.0 (Northern zone) | Baseline |
| Install crew | Factory-certified W-2 employees | Subcontracted |
| Warranty | Limited lifetime, transferable | 10–20 years |
Before & After
Real Replacement Windows transformation
Gallery
Replacement Windows — real installs
Reviews
What homeowners say about our Replacement Windows
★★★★★
"Connor and Mike came here . I have to say im so impressed how they showed me all my oppositions. They made everything so easy I recommend them highly. Im going with Harvey windows. Guarantee was for life of window"
★★★★★
"Jacob was very professional, easy to talk to & extremely knowledgeable. Coastal Windows is the way to go."
★★★★★
"Mark was great to deal with and we look forward to our installation and new look/functionality with the windows"
FAQ
Replacement Windows — Portland questions
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Cost
How much does Replacement Windows cost in Portland, ME?
Window pricing is driven by how many openings you're replacing, the size and style of each unit (double-hung, casement, bay, or specialty shapes), the frame and glass package you choose, and the condition of the existing framing. Homes needing rot repair, custom capping, or difficult second- and third-story access take more labor. We don't quote a per-window price sight-unseen — we measure every opening in person and put the full scope in writing before any work begins.
Current offer
50% Off Installation + Financing up to 20 Years + $250 Online Booking Bonus
Financing
Financing up to 20 years
Affordable monthly payments on full-exterior projects, with approved credit.
Service Area
Serving Portland & every surrounding Maine town
Local crews, same-day dispatch. Not sure if we cover your street? Call 978-818-1503.
ZIP codes served
- 04101
Replacement Windows in nearby towns
Why Portland chooses Coastal
Award-winning
7,000+ New England homeowners served
Factory-trained installers
James Hardie Elite Preferred
ProVia certified doors