CRBA installs and replaces windows across Hayward, Castro Valley, San Leandro, Fremont, San Jose, and the greater Bay Area — retrofit replacements in stucco homes, full-frame installs when the framing needs attention, bay window builds, and window openings created as part of a remodel. As a licensed general contractor rather than a window dealer, we handle what’s behind the trim: flashing, weatherproofing, framing repair, and the interior and exterior finish work that makes a new window look original to the house. Lic #1095283.
CSLB Lic #1095283· Fully Insured · 10-Year Workmanship Warranty · Free Written Estimates
Talk to the contractor, not a call center.
Call (510) 990-9243 with your window count and what’s bothering you, and we’ll give you a working range.
New construction and replacement windows, installed with proper flashing and a sealed exterior.
The right answer for most Bay Area stucco homes: the new window installs into the existing frame, leaving stucco and interior trim intact. Faster, cleaner, less expensive, and no stucco patching to blend. We assess whether your existing frames are sound enough to retrofit — that’s the deciding question, and it’s answered on site, not over the phone.
When the existing frame is rotted, out of square, or leaking, the whole assembly comes out down to the rough opening — new flashing, weather-resistive barrier, and proper integration with siding or stucco. More involved than a retrofit, and the only correct choice when there’s water damage behind the trim.
Bay windows, garden windows, and brand-new window openings in walls that never had one. Structural work: header sizing, framing, exterior weatherproofing, roof detail on bay projections, and permits. This is where a general contractor matters rather than an installer.
Windows and exterior doors done together — sliders, French doors, and entry doors installed with the same flashing and weatherproofing standards. One mobilization, one scaffolding setup where needed, one crew.
Interior casing, sills, and stools, plus exterior trim and shutters — the finish carpentry that decides whether new windows look built-in or bolted-on. Window companies typically leave this to you; a GC finishes it.
Not every window needs replacing. Failed hardware, broken sash cords, damaged screens, and single broken panes in otherwise sound frames can often be repaired for a fraction of replacement cost. We’ll tell you when that’s the honest answer.
Don’t see your project? Call (510) 990-9243— we handle it all.
Call (510) 990-9243. We ask how many windows, what type they are now, the home’s era, and whether anything shows water damage. That’s usually enough for a working range.
Free visit. We measure every opening, check frame condition and any moisture damage behind the trim, and recommend retrofit vs. full-frame per opening — often it’s a mix. You get a written itemized quote: windows, installation method per opening, flashing, trim, disposal, permits where required, and timeline.
Windows are made to order — expect [2–6 weeks] lead time depending on manufacturer and specification. Install runs a few windows per day: removal, dry-fit, flashing and sealing, insulation, then interior and exterior trim and paint-ready finish. Old units hauled away. Final walkthrough with every window opened and closed.
Realistic Bay Area ranges: retrofit vinyl window replacement typically runs $[900–$1,600] per window installed; full-frame installs $[1,400–$2,800] per window; bay window construction $[6,000–$15,000+] depending on size and roof detail. Whole-house replacements of 12–15 windows commonly land $[15,000–$35,000].
What you won’t pay for:
Call (510) 990-9243 with your window count.
Window quotes are hard to compare because two bids for “10 windows” can mean completely different work. Ours is structured so you can see what you’re comparing:
Phone range first. Window count, current type, and home era gets you a working range.
Free in-home measure and written quote — priced per opening. Some windows retrofit; some need full-frame. We price each one for what it actually needs instead of averaging and hoping.
Five things drive the price:
Based in Hayward, installing windows across the East Bay and South Bay:
Core service area: Hayward · Castro Valley · San Leandro · Fremont · Union City · San Jose
Also serving: Palo Alto · Mountain View · Sunnyvale · Cupertino · Santa Clara · Los Gatos · Oakland · San Francisco
In 2026, retrofit vinyl window replacement in the Bay Area typically runs $[900–$1,600] per window installed, and full-frame replacement $[1,400–$2,800] per window. A whole-house project of 12–15 windows commonly totals $[15,000–$35,000]. Cost depends on installation method, window type and size, glass specification, and any frame repair found behind the trim.
A retrofit (or insert) installation places the new window inside the existing frame, leaving stucco and interior trim undisturbed — faster, cleaner, and less expensive. A full-frame or new-construction installation removes the entire assembly down to the rough opening, allowing new flashing and weather barrier. Retrofit works when existing frames are sound and square; full-frame is required when there's rot, water damage, or the frame is out of square. Most Bay Area stucco homes are good retrofit candidates.
Installation itself moves quickly — a crew typically completes 4–8 windows per day, so most whole-house projects take 2–4 days. The longer part is manufacturing: windows are made to order, with lead times of [2–6 weeks] after the order is placed. Bay windows and new openings take longer because of framing and exterior work.
Usually yes for replacement in most Bay Area cities, and always when you change the size of an opening, add a new window, or build a bay window. Permits also involve Title 24 energy compliance for the glass specification. CRBA handles permits as part of the project.
They help, but manage expectations honestly: replacing single-pane aluminum with modern dual-pane Low-E windows produces a noticeable comfort improvement and a real but modest utility saving in the Bay Area's mild climate. The bigger wins here are comfort (no drafts, no cold glass), noise reduction, and eliminating condensation. If a salesperson promises the windows will pay for themselves in energy savings in a few years, be skeptical.
Yes, significantly — and this is one of the best reasons to replace windows in the Bay Area. Dual-pane windows with laminated glass substantially reduce traffic and freeway noise. If your home is near 880, 238, 92, or a busy street, ask specifically about laminated glass rather than standard dual-pane; the upgrade cost is modest and the difference is dramatic.
Yes. Single-window replacement is common for a failed seal, a broken sash, or storm damage. Per-window cost is higher than a whole-house project because mobilization is fixed, but there's no minimum-order requirement.
Repair when the frame is sound and the problem is hardware, weatherstripping, a broken sash cord, or a single cracked pane in an otherwise good unit. Replace when the seal has failed (fog between panes), the frame is rotted or out of square, or the windows are original single-pane aluminum. We'll tell you which yours are during the estimate — sometimes a $200 repair is the right answer.
Yes. Bay and garden windows are structural projects rather than window swaps: they need proper header sizing, framing, a small roof structure with correct flashing, insulation, and permits. That's general contractor work, and it's why window-only companies frequently decline it.
Yes, and it's the difference most homeowners don't think to ask about. Interior casing and sills, exterior trim, stucco or siding integration, and paint-ready finish are part of our scope. Many window dealers install the unit and leave the trim to you or a separate contractor — worth checking on every quote you compare.
Yes. Adding a window means cutting the opening, sizing and installing a structural header, framing, exterior weatherproofing, and interior finish — all permitted work. It's one of the highest-impact changes you can make to a dark room, and it's frequently done as part of a larger remodel.
Yes, and that's the ideal time. Walls, trim, and finishes are already open, so integration is cleaner and you avoid cutting into new drywall or freshly patched stucco later. We coordinate windows into whole-home remodels and room additions routinely.
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Retrofit and full-frame window installation, bay windows, new openings, and window and door packages across Hayward, Fremont, San Jose, and the Bay Area. Licensed general contractor — flashing, framing, and trim finished properly. Free measure and written per-opening quote.