Top-Rated Window Replacement Companies in Hauppauge, NY
We don't have license data for window and glazing businesses in Hauppauge, NY the way we do for some other cities on this site. This page leans on Google Maps instead: 10 businesses, ranked by rating weighted against how many people reviewed them. A strong Google rating still isn't the same thing as a license on file, so ask to see one before you sign anything.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
What Hauppauge's climate means for your window spec
Hauppauge sits in IECC climate zone 4A, the starting point for any code-minimum window performance here.
ENERGY STAR places Suffolk County in its North-Central zone for window certification.
Normal temperatures run 32°F in January and 75°F in July, so the glass package worth paying for in Hauppauge isn't the same one that pencils out two zones over.
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 6 mi away.
10 top-rated window replacement companies in and near Hauppauge
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 | Prestige Window and Door Repair Long Island | 229 | Window installation service | Hauppauge 11788 | Google reviews | |
| 2 | Egress of Long Island | 59 | Window installation service | Hauppauge 11788 | Google reviews | |
| 3 | JAGG Roofing Siding and Windows | 22 | Window installation service | Central Islip 11722 | Google reviews | |
| 4 | Infinity Replacement by Marvin | 72 | Window installation service | Ronkonkoma 11779 | Google reviews | |
| 5 | Royal Windows and Doors | 62 | Window installation service | Bay Shore 11706 | Google reviews | |
| 6 | Royal Windows and Doors | 55 | Window installation service | Commack 11725 | Google reviews | |
| 7 | Alpha Windows & Siding | 17 | Window installation service | Commack 11725 | Google reviews | |
| 8 | NSE Windows | 12 | Window supplier | Hauppauge 11788 | Google reviews | |
| 9 | EcoView Windows of Long Island | 116 | Window installation service | Islandia 11749 | Google reviews | |
| 10 | Saint James Windows and Doors | 12 | Window installation service | St James 11780 | 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?