Window Replacement Cost in Hagerstown and Frederick, MD
Our windows run about $1,200 per window installed in 2026. A whole house, every window replaced, runs $10,000 to $20,000.
- Itemized window by window
- Insert or full-frame, your call
Those are 2026 ranges for our service area, not a quote. Every opening is different, and the only way to know your number is to have someone measure.
Why our number is higher than the online average
Online averages lean on builder-grade vinyl and single-hung units. Ours is an installed price, and the estimate itemizes what's in it, window by window.
Compare quotes on the same things: frame material, style, insert or full-frame, and the glass package. A low number that leaves one of those out isn't the same window.
What moves the price of a window
Four things set most of the number. Everything else is detail.
Frame material
Installed, per window (Angi 2026): vinyl $200 to $800, aluminum $250 to $1,200, wood $300 to $1,500, fiberglass $300 to $2,000, composite $500 to $2,500.
Style
Single-hung $200 to $600. Double-hung $300 to $900. Sliders $300 to $1,000. Casements $350 to $1,500. Bays and bows run into the thousands.
Insert or full-frame
An insert slides into your existing frame. Full-frame takes the old frame, sill and trim out to the rough opening, and costs more.
Glass package
Double-pane with a low-E coating and argon gas is the standard here. Triple-pane adds cost and is rarely needed in our climate zone.
Then the smaller items: second-story work, odd sizes that need a custom order, rotten sill or trim repair, grids between the glass, and hauling the old windows away.
Insert or full-frame?
Insert
When the existing frame is square, dry and sound. You keep your interior and exterior trim, the job moves fast, and it's the cheaper path. On a house from the 1990s with vinyl siding, inserts are the usual answer.
Full-frame
When the frame is rotted, the window is out of square, you're changing the size, or the frame itself is the leak. On a 1920s Frederick rowhouse with wood frames, plan on full-frame for at least some openings. It also makes sense when siding is coming off anyway.
The energy numbers that matter here
U-factor measures how much heat escapes. Lower is better. SHGC, the solar heat gain coefficient, measures how much sun comes through as heat. Lower blocks more summer sun.
Washington and Frederick counties fall in ENERGY STAR's North-Central climate zone. The Northern zone to our west and north is stricter. Check the NFRC label on any quote against these two numbers before you compare prices.
The federal tax credit is gone
Several window sites still promise "up to $600 in federal tax credits." That credit, Section 25C, ended for windows installed after December 31, 2025, under the One Big Beautiful Bill Act signed in July 2025. Windows installed in 2026 don't qualify.
If you finished a window project in 2025, you can still claim it on your 2025 return. Utility rebates come and go. Ask us what's current when you get your estimate, and we'll point you to the source rather than guess.
Replacing windows with your roof or siding
Roofing is most of what we do. Windows usually go on a proposal alongside a roof or siding job, and that timing can save you money.
When siding comes off, full-frame windows go in without cutting the siding back and patching it later. When the roof is already scheduled, the crew, dumpster and permit trip are already on your street. We take window-only jobs too. The minimum is two windows.
Pricing more than windows?
Family-owned and veteran-owned, run by brothers Brandon and Chris Moye since 2022, out of Williamsport and downtown Frederick.
Window replacement cost FAQs
How much does it cost to replace all the windows in a house?
With us, a typical house with every window replaced runs $10,000 to $20,000 in 2026. For comparison, Angi's national data puts 6 to 8 windows at $4,500 to $6,000 and 12 to 16 at $9,000 to $12,000 for standard double-hungs. The count, the frame material and full-frame work move the number.
Is it cheaper to replace all the windows at once?
Per window, yes. Setup, travel and disposal are spread over more openings, and ordering a dozen of the same window costs less per unit than ordering two. If cash flow is the issue, do the worst wall first, usually the north or west side, and finish the rest later.
Can I get a tax credit for new windows in 2026?
No. The federal 25C credit ended for property installed after December 31, 2025, under the One Big Beautiful Bill Act. Windows installed in 2026 and later don't qualify. Utility rebates may exist, and we'll check what's current when we quote.
What's the difference between insert and full-frame replacement?
An insert fits inside your existing frame and keeps the trim. Full-frame removes the old frame down to the rough opening and reflashes it. Full-frame costs more and is the right call for rot, out-of-square openings, size changes, or when siding is already off.
Is there a minimum order?
Two windows. Most of our window work goes on a proposal with a roof or siding job, but we take window-only jobs too, and the estimate is free and itemized by window.
Hear From Our Customers
On February 7, 2026, a severe windstorm pulled several shingles off my roof. When I went out the next day to collect some of the fallen pieces, I was surprised to see how deteriorated they were—what looked fine from the ground was actually in pretty bad shape up close. A trusted friend recommended Home Source Roofing out of Williamsport, Maryland, and I’m glad they did. Michele from Home Source came out on February 11 to assess the damage using both a drone and a ground inspection. She recommended immediate tarping due to incoming rain, and it was completed the very next day—just in time, because we had several days of heavy rain right after. I also had Home Source look at a gutter and downspout issue that was contributing to shingle problems. They recommended a solution, and I chose to have that work done in addition to the roof replacement. Shortly after, I received a very reasonable quote with two package options using GAF Timberline HDZ shingles in Hunter Green. I chose the Gold package, which offered additional protection with upgraded underlayment and enhanced vent covers. Both options featured 50-year shingles, which gave me great peace of mind. On March 18, the crew arrived right on time and got straight to work. The entire process was incredibly organized and efficient. They started by laying protective tarps over my porches and yard, then moved seamlessly through removing the old shingles, making necessary repairs, and installing the new roof. The onsite lead, Christian, kept everything running smoothly and maintained great communication throughout the project. The owner, Brian, also personally stopped by on the day of installation to ensure everything was proceeding as planned, which I really appreciated. In addition, Rene from Home Source stopped by to review and coordinate the upcoming gutter and downspout work, working directly with Superior Seamless Gutters LLC to ensure everything was aligned. At one point during the tear-off, my porch was completely covered in old shingles—it looked a little wild—but by the time they finished, everything was spotless. You would never know they had been there. I’ve included before-and-after photos to show the condition of the old shingles and the quality of the finished roof. Overall, this was a fantastic experience from start to finish. The professionalism, responsiveness, attention to detail, and cleanup exceeded my expectations. I highly recommend Home Source Roofing to anyone in need of roofing services!
We had a wonderful experience with HomeSource Roofing for our new roof and gutters. From the very first phone call, they were quick to respond and made it easy to set up an appointment with their sales representative. Communication throughout the entire process was excellent—they kept us informed, answered our questions promptly, and were very organized. Anytime I had a question, it was answered quickly and efficiently, which gave us a lot of confidence in the process. The pricing was very fair, and we feel we received a great value for the quality of work provided. On top of that, their crew did a fantastic job cleaning up our property once the work was finished, leaving everything neat and tidy. Overall, HomeSource Roofing was professional, efficient, and easy to work with. We are very pleased with the results and highly recommend them!
We had a great experience with Home Source Roofing from start to finish. The Chris B and his team was professional, on time, and easy to work with throughout the entire process. They clearly explained everything, answered all of our questions, and made sure we were comfortable with the plan before getting started. The quality of the work really stands out — our roof looks amazing and we feel confident it was done the right way. The crew worked efficiently, kept the area clean, and respected our property the whole time. It’s hard to find contractors you can trust, but Home Source Roofing delivered exactly what they promised. I would definitely recommend them to anyone looking for reliable, high-quality roofing work.
May 11, 2026 - I have an Excellent experience with Home Source Roofing from start to finish. John Moye is a very professional, knowledgeable, explained everything clearly and easy to work with. The team arrived on time, and the quality of work was outstanding, especially cleanup was very neat. The whole process was smooth for 1 day job. I'm highly recommend!
Knowledgeable, friendly, did a excellent job in a day, and I would recommend them. I got the architectural shingles rated for 130 mph winds. Less than 3 weeks or so from the time they came out to look, to complete roof installation.
Huge shout out to JR and his crew!!! I can't believe how fast our roof went on and how good it looks! Home source will definitely be my go to from now on. Thanks guys
Get a per-window estimate
We measure every opening, tell you which ones can take an insert and which need full-frame, and price them line by line.
Hagerstown, Williamsport and Washington County: (301) 848-8508
10226 Governor Lane Boulevard, Unit 4010, Williamsport, MD 21795
Frederick County: (240) 772-5242
241 E 4th Street, Unit 206B, Frederick, MD 21701
Monday to Friday 8 to 5, Saturday 9 to 1.