Walnut Creek is home. We replace windows and doors across the city, from mid-century ranches in Parkmead and Tice Valley to Rossmoor and the hillside homes along Shell Ridge, with glass built for our summer heat.
No subcontractors, ever. You deal directly with Alex and Leon Elbert, the brothers who own the company and show up on your job.
Get My Free QuoteWindows 4U is based right here in Walnut Creek, and it’s run by brothers Alex and Leon Elbert. When you call, you talk to the people who will measure your home and install your windows. Walnut Creek’s mix of mid-century ranch homes, HOA communities like Rossmoor, and hillside houses near open space means the right window changes from street to street, and we know those streets.
Retrofit and new construction replacement in vinyl, fiberglass, wood-clad and aluminum, from a single window in a downtown condo to a whole Northgate home.
Learn more →Fiberglass and steel entry doors that seal out summer heat and brighten the front of the house.
Learn more →Sliding, French and multi-slide patio doors with heat-blocking glass for hot Walnut Creek afternoons.
Learn more →We live and work in Walnut Creek, so we’re close for estimates, installs and anything you need afterwards. Alex and Leon measure every home and lead every install with their own crew.
We’ll tell you honestly what your home needs, including when a simple retrofit is the right answer.
Also serving: Lafayette, Concord, Pleasant Hill, Alamo, and the wider East Bay.
Walnut Creek isn’t Oakland or San Francisco. The heat, the housing, and the HOAs all change which window is right for your home.
Summer afternoons here regularly reach the 90s and beyond, far hotter than towns closer to the bay. Walnut Creek sits in California energy climate zone 12, where the biggest win from new windows is keeping heat out. On west- and south-facing walls we spec low-E glass with a low solar heat gain rating, which keeps bedrooms cooler and cuts how long the AC runs.
Neighborhoods like Parkmead, Walnut Heights, and Tice Valley are full of 1950s and 70s ranch homes that still have their original single-pane aluminum sliders. Most of these can be replaced with retrofit windows that fit inside the existing frame, so the stucco around the opening stays intact and there is no exterior patching or repainting.
In Rossmoor and other HOA-managed communities, exterior changes such as window color, grid pattern, and frame style usually need approval before work starts. We supply the product specifications, color samples, and written scope your mutual or HOA asks for, and we order only after the approval is in hand.
Homes along Shell Ridge, Lime Ridge, and the Walnut Creek hills can fall inside a state-mapped fire hazard severity zone. California’s wildfire building standards call for dual-pane windows with at least one tempered pane in those zones. We check your address against the fire hazard map during the estimate and spec the glass accordingly.
Homes near the freeways or the BART line do best with laminated or sound-rated glass in the bedrooms.
A smooth, well-sealed patio door is one of the most noticeable upgrades in a Walnut Creek ranch home.
The options we talk through most on Walnut Creek estimates. Each one links to the brands that make it.
Fiberglass for hot walls
Stays straight and sealed in our summer heat, even in dark colors.
Fiberglass windows →
Wood-look vinyl
Traditional wide frames for homes with classic trim.
Simonton Madeira →
Glass for hot climates
California-made windows and doors with SunMatrix glass.
Anlin →
Wood-clad for remodels
Real wood inside and a tough clad exterior, in custom sizes for bigger remodels.
Windsor Pinnacle →
Quick answers to what we hear most. See our full FAQ →
Free estimate · No obligation
Tell us a little about the project. Alex or Leon will measure, talk through the options with you, and send a fair written quote. We usually reply within 48 hours.
Prefer to talk? Call or text (925) 393-3578
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