McHenry, IL's Highest-Rated Window Installers on Google
McHenry's 9 listings below come from Google Maps rather than a state license file. IECC climate zone 5A sets the energy bar for a McHenry window job no matter which kind of list a contractor's name comes from. Checked October 2026.
Google Maps ratings checked · How we rank
5AIECC climate zone · ENERGY STAR Northern zone
What McHenry's climate means for your window spec
IECC rates McHenry's climate zone as 5A, the starting point for any code-minimum window performance here.
ENERGY STAR places McHenry County in its Northern zone for window certification.
Normal temperatures run 22°F in January and 73°F in July, so the glass package worth paying for in McHenry 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 2.7 mi away.
9 top-rated window replacement companies in and near McHenry
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 | General Exterior Construction Inc. | 172 | Window installation service | McHenry 60050 | Google reviews | |
| 2 | SMT Exteriors | 87 | Window installation service | McHenry 60050 | Google reviews | |
| 3 | Johnny Siding Contractors | 37 | Window installation service | McHenry 60050 | Google reviews | |
| 4 | SureFit Windows Replacement & Installation | 36 | Window installation service | McHenry 60050 | Google reviews | |
| 5 | Certified Window Company - Lake County | 31 | Window installation service | Fox Lake 60020 | Google reviews | |
| 6 | Pink Roofing | 214 | Window installation service | McHenry 60050 | Google reviews | |
| 7 | Diamond J Glass Inc | 61 | Window installation service | Fox Lake 60020 | Google reviews | |
| 8 | Quality Services and Repair | 29 | Window installation service | Spring Grove 60081 | Google reviews | |
| 9 | Above Par Construction, Inc | 37 | Window installation service | McHenry 60050 | 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?