Clarkstown, NY's Highest-Rated Window Installers on Google
Clarkstown's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 5A sets the energy bar for a Clarkstown window job no matter which kind of list a contractor's name comes from. Checked September 2026.
Google Maps ratings checked · How we rank
5AIECC climate zone · ENERGY STAR Northern zone
What Clarkstown's climate means for your window spec
Rockland County sees about 51.2 inches of precipitation and 32.7 inches of snow in a normal year.
Weather at that level is one more reason the flashing and sill pan under a Clarkstown window matter as much as the glass sitting in it.
So ask any Clarkstown 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 11.1 mi away.
10 top-rated window replacement companies in and near Clarkstown
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 | CUNIN CONSTRUCTION | 117 | Window installation service | Nanuet 10954 | Google reviews | |
| 2 | Hendo Contracting | 118 | Window installation service | New City 10956 | Google reviews | |
| 3 | Franzoso Contracting | 514 | Window installation service | Croton-On-Hudson 10520 | Google reviews | |
| 4 | Window & Door Outlet | 19 | Window installation service | Not listed | Google reviews | |
| 5 | Tucek and Sons Roofing | 32 | Window installation service | Congers 10920 | Google reviews | |
| 6 | Affordable Windows And Doors | 37 | Window supplier | Monsey 10952 | Google reviews | |
| 7 | Paul's Mobile Window and Door Repair | 10 | Window installation service | Not listed | Google reviews | |
| 8 | C M Windows & Doors Inc. | 14 | Window supplier | Suffern 10901 | Google reviews | |
| 9 | Classic Windows N Doors Inc. | 6 | Window supplier | Spring Valley 10977 | Google reviews | |
| 10 | R & J Window Co | 6 | Window installation service | Congers 10920 | 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?