The Window Source Double Hung Replacement Windows Raleigh, Durham, Chapel Hill, & Burlington NC

Double-Hung Replacement Windows in Raleigh, Durham & Burlington

Double-hung windows are the most popular replacement window we install — and for good reason. Both sashes tilt in so you can clean the outside glass from inside your home, they ventilate top and bottom, and they suit nearly every home style in the Triangle. Every double-hung we sell is custom-made by Gentek to your exact opening, professionally installed by our local team, and backed by our transferable lifetime warranty.

Which series is right for your home?

3000 Series — Concord Plus. Budget-friendly quality.

Our entry-level line without entry-level construction: fusion-welded frames and sashes, insulated glass with a warm-edge spacer, and solid vinyl color that won’t chip, peel, crack, or warp. The smart choice when you’re replacing a house full of windows on a budget.

6000 Series — Signature® Elite. Our best seller.

The window most of our customers choose. The 6000 adds a foam-filled frame, double-strength glass, a narrower frame for more glass area, and the Fortress® locking system with a lock-status indicator. It’s the best balance of comfort, strength, and price we offer.

9000 Series — Sequoia® Select. Maximum efficiency.

Triple-pane glass with two LowE coatings and two argon-filled chambers, in a foam-filled frame — an NFRC U-factor of .22. If rising energy bills are the reason you’re replacing windows, this is the one to ask about.

Get your free in-home estimate and we’ll measure, walk you through all three series, and give you an exact price — no pressure, no obligation. Prefer to talk? Call us and ask about the series that fits your budget. Military, first responders, veterans, EMTs, and seniors save 5% (cannot be combined with other offers).

Compare all three series feature by feature in the table below.

Product features are subject to change by the manufacturer — your estimator will confirm current specifications during your free in-home visit.

• Budget Friendly
• Most Popular
• Premium Select

		Budget Friendly		Most Popular		Premium Select
		The 3000 Series Double-Hung Windows Read more Are you looking to upgrade the windows in your family's home? Our entry level energy efficient window, the Series 3000, is a perfect way for you to improve the look and feel of your home at an affordable rate. E.g. Even our entry-level line includes fusion-welded frames on all sash and mainframe corner joints while many competitor entry-level windows have mechanically fastened joints that can work loose over time.		The 6000 Series Double-Hung Windows Read more You don't have to sacrifice on quality if you're working with a limited budget on your replacement window project. Our 6000 Series Double-hung Window line has all of the essential features of an energy efficient replacement window.		The 9000 Series Double-Hung Windows Read more The 9000 Series is our highest performance window line. The triple glass and foam wrapped frames give you the ultimate in comfort and energy savings. The triple pane 9000 series features two coatings of high performance LowE and two chambers of Argon gas fill. The result is a highly efficient replacement window with an incredible NFRC U-factor of .22. With the 9000 series you'll be prepared for ever rising energy prices. We have seen similar products offered for more than twice as much. Why pay more?
	Features
	Multi-chambered 3.25" vinyl frames	✔		✔		✔
	Fusion-welded sashes and mainframes	✔		✔		✔
	Double-insulated glass	✔		✔		✔
	Both top and bottom sashes tilt in for cleaning	✔		✔		✔
	Sloped sill	✔		✔		✔
	Composite reinforced interlocking meeting rail	✔		✔		✔
	Warm edge spacer system	✔		✔		✔
	Foam wrapped frames resist heat and cold transfer	✔		✔		✔
	Energy efficient	✔		✔		✔
	NFRC U-Factor of	28		27		22
	Double strength glass	✔		✔		✔
	Energy Star certified	✔		✔		✔
	100% Transferable Lifetime Warranty	✔		✔		✔
	Foam Filled Enhanced Cavities			✔		✔
	Tax credit eligible			✔		✔
	Extruded aluminum half screens					✔
	More strength					✔
	Composite reinforced interlocking meeting rail					✔
	A true slope welded sill					✔
	7/8" triple pane insulated glass					✔
	Two layers of LowE/Argon					✔
	Extra heavy duty beveled frames					✔