🪟 The Window Source Replacement Window Company in Concord, NH Double Hung Windows Installed

For more than a decade, The Window Source of New Hampshire has helped homeowners in Concord, NH, and surrounding towns improve their homes with beautiful, energy-efficient replacement windows. We combine quality craftsmanship with honest, local service backed by lifetime warranties — because we believe your home improvements should last as long as your pride in them.

Windows Built for Concord’s Seasons

Central New Hampshire weather can be unpredictable — from below-zero winters to hot, sticky summers — and your windows need to handle it all. Our double-hung replacement windows are designed for energy savings and year-round comfort. Both sashes slide and tilt in for easy cleaning and flexible ventilation, while advanced insulation and tight seals keep your home quieter, warmer, and more efficient.

Professional Installation by a Local Team

When you work with The Window Source, you’re supporting a regional company that understands New Hampshire homes. Our expert installers measure, custom-build, and fit every window for a perfect seal — no drafts, no shortcuts. We respect your home, your schedule, and your investment, delivering dependable service every time.

Proud to Serve Concord and Nearby Towns

From historic homes near Main Street to newer neighborhoods in Bow, Hopkinton, and Pembroke, our team is proud to serve the heart of Merrimack County. Because we’re based nearby, we can schedule convenient appointments and provide ongoing support long after installation is complete.

Request a Free Quote

Ready to upgrade your home’s comfort and curb appeal? Contact The Window Source of New Hampshire today for a free, no-pressure estimate on double-hung replacement windows in Concord, NH. See why homeowners across central New Hampshire trust our local team for quality, service, and value that last a lifetime.