Additional discount for seniors, military, and first responders.
Free estimate · Free 3D design · No money down · No interest · No payments for 12 months
Takes less than 60 seconds
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Shelley White
Emily V.
Tim Hinkle
Serving Baltimore Metro, Central Maryland, Northern Virginia, with professional window replacement.
Do you need new windows?
If two or more sound familiar, it is worth a free look.
You feel air moving around a window that's shut.
Moisture trapped between the panes means the seal failed.
Sashes that won't open, stay up, or lock.
Rot, cracking, or warping around the opening.
One room never holds temperature.
Windows that clash with siding, trim, or roofing you've updated.
ProVia
Certified installer
The versatile standard. Both sashes open, most tilt in to clean.
Cranks outward for maximum airflow and an unobstructed view.
Clean horizontal operation, ideal for wide
openings.
Fixed glass built to maximize light and view.
Adds dimension and light from multiple angles.
Arched, circular, transom, and specialty openings.
Why peak
The window is half the job. Fit, sealing, flashing, and finish decide how it performs for the next 20 years. Peak has handled window replacement across Maryland, Northern Virginia, and Southern Pennsylvania for over 30 years.
2,500+ projects completed and over 1,400 five-star reviews across Google, Angi, GuildQuality, HomeAdvisor, and Facebook.
A six-step process that keeps service, communication, and quality consistent from first visit to final walkthrough.
See a full-color 3D rendering of the finished project on your own home and get your price in one visit. Same-day and next-day appointments available.
Our workmanship is guaranteed as long as you own the home — and for the next owner too. No expiration date.
Peak guarantees its workmanship for as long as you and the next owner live in the home. No expiration date.
New windows modernize your exterior without changing the character of the house.
We assess your windows, show you a full-color 3D rendering on your actual home, and give you the estimate. All in one visit. Same-day and next-day appointments available.
Precise measurements confirmed before anything is ordered.
Old windows out, new ones installed, sealed, flashed, and tested before we leave.
Window Replacement Questions
Typically yes — replacing old single-pane or drafty windows can cut heating and cooling costs by 25–30% annually. Actual savings depend on your current windows and HVAC system.
It depends on the number and size of windows, product line, glass package, and the condition of your existing openings. Peak gives you a firm estimate during the first visit, free.
Yes. The Forever Guarantee covers Peak’s workmanship for as long as you and the next owner live in the home.
Yes — no money down, no interest, and no payments for 12 months on qualifying projects, subject to credit approval.
