Orinda, CA

Window Replacement & Door Installation in Orinda

Windows 4U serves Orinda homeowners throughout the Lamorinda hills, from Glorietta and Sleepy Hollow to Orinda Village, Rheem Valley, and the ridgelines above, with licensed, in-house window and door installation backed by a 4-year workmanship warranty.

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Your Local Orinda Window Experts

Orinda is defined by its hillside setting, custom homes on wooded lots, panoramic views, and a community that values quality. Windows 4U has worked extensively in Orinda, replacing windows on everything from mid-century modern hillside homes to newer custom builds. We understand the access challenges that come with hillside properties, how to work cleanly in homes with hardwood floors and fine finishes, and how to select windows that hold up to Orinda's hot dry summers and cooler winters. Alex and Leon Elbert manage every project personally.

Window & Door Services

Every service is performed by our in-house crew. No subcontractors, ever.

Window Replacement

Retrofit and new construction window replacement in vinyl, fiberglass, and aluminum. Casement, double-hung, sliding, picture, bay & bow, all styles installed with precision and minimal disruption to your home.

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Entry Door Installation

Steel and fiberglass entry doors that improve your home's curb appeal, security, and energy efficiency. Includes full hardware installation and weatherstripping.

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Patio & Sliding Doors

Sliding glass doors and French-style patio doors perfectly suited to Orinda's hillside homes and deck-to-backyard connections. Vinyl, aluminum, and fiberglass systems available.

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Recent Projects in the East Bay

Arched window replacement on stucco home, East Bay
Full house window replacement, East Bay
4-panel sliding door installation, East Bay
View full project gallery →

Hillside Expertise, Licensed Professionals

Orinda's homes sit in a high fire-hazard severity zone, which means there are specific requirements for replacement windows in certain locations. We know these regulations and can guide you through the process. We're also experienced working on hillside properties where material handling and access require careful planning. Whether your home is a 1960s ranch near Camino Pablo or a newer custom home in Sleepy Hollow, we bring the right approach to every project.

We're based in Walnut Creek, just over the hill. You'll always reach Alex or Leon directly when you call.

  • Knowledgeable about fire-zone window requirements
  • Experienced on hillside and custom-built homes
  • Direct communication with Alex or Leon
  • 4-year workmanship warranty + lifetime product warranty
  • Licensed, bonded & insured (CA Lic. #1097508)

Neighborhoods We Serve in Orinda

Glorietta Sleepy Hollow Orinda Village Rheem Valley Camino Pablo Orinda Oaks Vista Grande Orinda Downs

Also serving neighboring cities: Lafayette, Moraga, Walnut Creek, Pleasant Hill, and the wider East Bay.

★★★★★

"We have a hillside home in Glorietta with some tricky window access points. Leon came out, assessed everything carefully, and his crew handled it without a single issue. The new windows are beautiful, much quieter and the temperature difference in our living room is remarkable."

DW
David W.
Orinda, CA · Google

Trusted Brands We Install

Milgard Alside Anlin Simonton ProVia Marvin Windsor Weather Shield

Window & Door FAQ

Quick answers to what we hear most. See our full FAQ →

Four steps: (1) You request a free estimate, either in-home or remote. (2) We measure, spec the right product, and send you a written quote. (3) Once approved, we order your windows or doors. Lead times are typically 3–5 weeks depending on what you ordered. (4) Installation day: our in-house crew does the work, cleans up fully, and walks through the finished job with you before we leave.
Full replacement only. We don’t repair broken hardware, re-seal leaking frames, or do glass-only swaps. If you’re not sure whether you need repair or replacement, just call us and we’ll give you an honest answer, not a sales pitch.
You can replace as few or as many as you need. One window, a few rooms, or the whole house. We take on all of it. Many customers start with the worst ones and come back for the rest later.
Yes. We can provide the product specs, color samples, and written documentation most HOAs require for window or door replacement approval. Just let us know your HOA’s requirements upfront and we’ll prepare what’s needed.
Yes, removal and disposal of your old windows and doors is included in every job. We clean up the work area completely before we leave. No pile of old frames sitting in your yard.
Never. Every installation is done by Alex and Leon’s own in-house crew. No day laborers, no strangers at your door. This is how we maintain consistent quality and stand behind our 4-year installation warranty.
A few things worth knowing upfront: we don’t do repairs of any kind (no hardware fixes, re-sealing, or patching), glass-only replacement, screen repair or re-screening as a standalone job, interior door installation, or installation of windows and doors you’ve purchased elsewhere. We do full replacement only: windows and exterior doors, start to finish.

Get a Free Estimate in Orinda

Call, text, WhatsApp, or fill out our form. We respond fast and can often schedule your in-home estimate within a day or two.