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FeaturedVerifiedWindow Installers in Walnut Creek, California

Windows4U

Featured in Walnut Creek Today 5.00 (23 reviews)(925) 393-3578

Windows4U replaces windows and exterior doors in Walnut Creek and the East Bay. Founded by brothers Alex and Leon Elbert, it handles both retrofit and new-construction window installations.

Business Highlights
  • Windows4U lists California Contractor License #1097508 and says it is fully licensed, bonded and insured.
  • Alex and Leon have over 20 years of experience in the window and door industry.
  • An in-house crew handles every installation; Windows4U does not use subcontractors.
  • Windows4U offers a 4-year workmanship warranty for every installation.
  • Most windows and doors come with a manufacturer's lifetime product warranty.

Service Area

Walnut Creek, Concord, Pleasant Hill, Lafayette, Danville, San Ramon, Martinez, Orinda, Brentwood, Clayton, Moraga, Alamo, Oakland, Berkeley, Pittsburg, Antioch, Oakley, Livermore and Dublin; San Francisco and San Jose for select projects.

Featured on ProsGrade. Windows4U is one of 7 window installers ProsGrade lists in Walnut Creek, California.

Listing details

3 services listed: Window replacement, Entry door replacement and Patio and sliding doors. Open Monday to Saturday. Rated 5.0 from 23 reviews.

  • Verified listing details
  • Service information
  • Customer review signals
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  • Public contact information
  • Published local profile

How This Business Compares

How Windows4U compares with the other 6 window installers on ProsGrade in Walnut Creek, using public Google ratings and review counts.

  • Ranks in the top half of the 7 Walnut Creek window installers on ProsGrade by Google rating and review volume.
  • Rated 5.0 on Google, at or above the 4.9 average of other Walnut Creek window installers on ProsGrade.
  • One of 5 Walnut Creek window installers on ProsGrade rated 4.7 or higher from at least 10 reviews.

Services Covered

3 services
  • Window replacementCasement, double-hung, bay and bow, picture, slider, awning and single-hung; retrofit or new construction; vinyl, fiberglass, aluminum and wood.
  • Entry door replacementFiberglass, steel and wood; front, back, side and house-to-garage doors.
  • Patio and sliding doorsTwo-, three- and four-panel sliders; vinyl, aluminum and fiberglass; French-style patio doors.

Reviews

What customers say

Recent customers praise the team's professionalism and responsive, clear communication. A customer with a leaking balcony door valued Alex's diagnosis of the problem and explanation of the flashing work intended to prevent future leaks.

Customer Reviews

K L

Just had all the windows and sliding door replaced by Window4u, and it was one of the easiest home improvement experiences I've had. Their pricing is very fair, and Alex and Leon were not only professional but incredibly efficient. Great team! Alex always replied promptly which made communication so easy throughout the project. The entire job was completed in just a day and a half. Much quicker than I anticipated. The experience was so positive that I am already getting another quote from them for another project. Highly recommend them!
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Ivan Llanos

Thank you so much, Alex and the Windows4U team. I had a problem with a sliding door on a balcony that was leaking water beneath it. Other providers didn't seem as interested to diagnose the true issue, and just provide replacement quotes - but Alex spent the time with me to check out the door, and point out signs where it was installed incorrectly or causing problems. This gave me the confidence to go with Windows4U and accept the bid, which was reasonably priced. Within a few weeks, the new door arrived, and Alex promptly setup an appointment for the work. They installed the new door perfectly, and spent time to confirm the problems they found, and what they solved (flashing, etc.), so future leaks would be prevented. Afterward, my wife and I immediately felt the different in the room - we didn't know we had a light draft, but now it was definitely sealed tight. They also did a great job cleaning up the area and making sure they didn't leave any screws or sharp pieces behind (this is very important to us since we have pets and kids, and not every contractor is as tidy) Overall, it was a great experience that built trust and confidence. I'll definitely be calling Alex again with any window or door needs in the future. Look no further.
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Matt Trenkwalder

I recently had new windows and a sliding glass door installed by Windows4U, and the experience was excellent from start to finish. Alex and Leon provided a free consultation, were extremely knowledgeable, and never pressured me into a sale. Alex was my main point of contact and was always responsive and clear with communication. Everything that was promised was delivered as agreed. On installation day, both Alex and Leon were on site and brought in two crews to complete the job efficiently before the rain started. The crews were professional, respectful of my home and family, and did a thorough job cleaning up afterward. I highly recommend Windows4u to anyone looking for honesty, quality work at a fair price, and excellent craftsmanship.
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Frequently Asked Questions

How long are Windows4U's product lead times?

After an estimate is approved, product lead times typically run 3–5 weeks. Custom sizes, specialty glass and premium product lines may take longer.

How should homeowners prepare for a Windows4U installation?

Windows4U asks homeowners to clear a 3-foot path around each opening and move furniture away from the work area.

Does Windows4U install customer-supplied windows or doors?

No. It installs only products it supplies and orders itself.

Does Windows4U repair existing windows or replace glass alone?

No. Windows4U handles full replacements, not repairs or glass-only replacements.