Window & Door Replacement in Derry, PA
Window & Door Replacement in Derry, PA, done by a family-owned general contractor based just down the road in Latrobe. Old windows do three things badly: they leak cold air in winter, hot air in summer, and they look tired from the curb. New energy-efficient windows fix all three and usually pay for themselves over time in lower utility bills.
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What We Install
Replacement windows including double-hung, casement, slider, bay, bow, and picture windows in vinyl, fiberglass, and wood-clad options.
Entry doors including steel, fiberglass, and wood entry doors with the hardware and trim work to match.
Patio doors including French doors, sliding doors, and multi-panel sliding glass walls.
Storm doors added over your entry doors for extra insulation and protection.
Interior doors including bedroom, bathroom, closet, and pocket doors.
What It Costs
Replacement windows generally run $500 to $1,200 per window installed depending on size, style, and brand. Entry doors typically run $1,000 to $4,000 installed. Patio doors land between $1,500 and $5,000 installed.
Why Derry Homeowners Hire Us
We've been the go-to general contractor for Derry and the rest of Westmoreland County since 2014. Derry has a small-town feel, a mix of working-class homes and rural properties, and customers who care about value. We do fair-priced, honest work for our Derry neighbors.
- Rural properties out here often need exterior work, decks, and outbuildings as much as kitchens and baths.
- Many Derry homes are older and benefit from window, siding, and insulation upgrades.
Common Questions
01Do you actually work in Derry?+
Yes — Derry is one of our regular service areas. We're based at 102 Dill Lane in Latrobe, about a short drive from Derry, and we don't add travel fees for jobs inside Westmoreland County.
02Who pulls the permits for a window & door replacement project in Derry?+
We do. Every borough and township in Westmoreland County has its own permit process, and we handle the paperwork directly with the local office. Permit fees are itemized on the estimate so there are no surprises.
03How do I get a free estimate?+
Call (724) 539-1678 or use the contact form. We return every inquiry within 48 hours and most Derry estimates are scheduled within a few days.
04How much will new windows save on energy bills?+
Most homeowners see 10 to 25 percent reductions on heating and cooling costs after replacing single-pane or old double-pane windows with modern Energy Star rated units.
Ready to start your window & door replacement project in Derry?
Free estimate, 48-hour callback. Call (724) 539-1678 or use the form.