Top-Rated Window Replacement Companies in Montgomery Village, MD
Montgomery Village's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 4A sets the energy bar for a Montgomery Village window job no matter which kind of list a contractor's name comes from. Checked September 2026.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
What Montgomery Village's climate means for your window spec
Montgomery County sees about 47.9 inches of precipitation and 31.4 inches of snow in a normal year.
Weather at that level is one more reason the flashing and sill pan under a Montgomery Village window matter as much as the glass sitting in it.
So ask any Montgomery Village contractor how they handle both, not just which brand they carry.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 5.5 mi away.
10 top-rated window replacement companies in and near Montgomery Village
Ranked by Google rating weighted against how many people left one, so a perfect score from a handful of reviewers never outranks a strong average built on hundreds. That ranking is not a license check; call the state directly and ask for the contractor's license or registration number.
| Rank | Business | Google rating | Reviews | Category | Area | Google Maps listing |
|---|---|---|---|---|---|---|
| 1 | Quality Window & Glass Repair LLC | 455 | Window installation service | Germantown 20874 | Google reviews | |
| 2 | Safety Glass Repair | 186 | Window installation service | Gaithersburg 20879 | Google reviews | |
| 3 | Capitol Improvements - Gaithersburg Roofing Company & Siding Contractors | 160 | Window installation service | Gaithersburg 20879 | Google reviews | |
| 4 | Dream Exterior | 108 | Window installation service | Gaithersburg 20877 | Google reviews | |
| 5 | Premier Windows & Glass | 519 | Window installation service | Gaithersburg 20886 | Google reviews | |
| 6 | Window Replacement DC | 15 | Window installation service | Gaithersburg 20877 | Google reviews | |
| 7 | Creative Exterior Concepts | 207 | Window supplier | Gaithersburg 20879 | Google reviews | |
| 8 | Campbell Glass & Door Services Inc | 22 | Window installation service | Gaithersburg 20879 | Google reviews | |
| 9 | Capital Remodeling, Inc. | 79 | Window installation service | Gaithersburg 20878 | Google reviews | |
| 10 | Rockville Window & Door Co | 11 | Window installation service | Gaithersburg 20877 | Google reviews |
Questions to ask before you sign
- How long have you held your state license, and can I see the number?
- Is this a full-frame replacement or an insert into my existing frame, and why that one?
- Who pulls the permit, and does this change trigger an egress check on a bedroom window?
- What flashing and sill pan will you use, and in what order do you install them?
- If my home was built before 1978, is your crew lead-safe certified for this job?
- What's the completion date in writing, and what happens if the schedule slips?