Top-Rated Window Replacement Companies in Harrisburg, PA
Harrisburg's 10 listings below come from Google Maps rather than a state license file. IECC climate zone 4A sets the energy bar for a Harrisburg 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
Climate and energy performance in Harrisburg
Harrisburg sits in IECC climate zone 4A, the starting point for any code-minimum window performance here.
ENERGY STAR places Dauphin County in its North-Central zone for window certification.
Normal temperatures run 29°F in January and 75°F in July, so the glass package worth paying for in Harrisburg 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 0.9 mi away.
Google's top window installers serving Harrisburg, PA
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 | Topp Home: Roofing, Solar Panels, Windows and Doors | 182 | Window installation service | Camp Hill 17011 | Google reviews | |
| 2 | Pella Windows and Doors Showroom of Harrisburg, PA | 1,321 | Window installation service | Harrisburg 17111 | Google reviews | |
| 3 | Window Depot USA of Central PA | 83 | Window installation service | Camp Hill 17011 | Google reviews | |
| 4 | Your Windows & Doors | 39 | Window installation service | Mechanicsburg 17050 | Google reviews | |
| 5 | Renewal by Andersen | 6,099 | Window installation service | Mechanicsburg 17050 | Google reviews | |
| 6 | Get Clear Windows, LLC | 29 | Window installation service | New Cumberland 17070 | Google reviews | |
| 7 | Castle Windows | 939 | Window installation service | Mechanicsburg 17055 | Google reviews | |
| 8 | Studio 4 Showroom | 19 | Window installation service | Harrisburg 17110 | Google reviews | |
| 9 | Hershocks Inc | 39 | Window installation service | Harrisburg 17110 | Google reviews | |
| 10 | MI Windows & Doors LLC | 191 | Window supplier | Harrisburg 17110 | 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?