Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Meridian Windows & Doors handles window replacement, window installation, and patio door installation for homeowners across Danville, CA. Most Danville properties were built between the 1960s and early 2000s, and the combination of hot, dry summers and cool, damp winters means original frames and seals take a real beating over time. If you’re seeing condensation between panes, sticking sashes, or drafts around the frame, call (817) 686-2228 and we’ll give you a written price before any work begins.
Why Danville Homes Are Different
Danville sits in the San Ramon Valley, where summer temperatures routinely climb into the 90s while winter nights dip into the 30s. That swing stresses window seals and weatherstripping faster than in coastal communities. Homes here are also larger than the Bay Area average: much of the housing stock runs 2,500 to 4,000 square feet, which means more window openings per house and more south-facing glass that takes direct afternoon sun. We regularly see failed seals on the west and south elevations first, especially on homes along Camino Tassajara and in the Sycamore Valley area.
The terrain matters too. Danville’s rolling hills mean many homes sit on slopes, so installation crews deal with uneven grade and occasionally need staging or extra ladder work. HOA requirements are common in neighborhoods like Blackhawk and Diablo, and several Danville communities require architectural review before exterior changes. We’re used to working with HOA submittal requirements and can provide the product specs boards typically ask for.
Wood-framed windows from the 1970s and 80s are still common in older Danville neighborhoods, and they tend to rot at the sills after decades of winter rain. Aluminum frames from the same era are often thermally broken now, meaning heat and cold pass right through. Neither is a surprise to us. We spec replacements based on how each elevation faces the sun, not on what happens to be sitting in a warehouse.
Our Main Danville Services
The three jobs Danville homeowners ask us about most are window replacement, new window installation, and patio door installation. Each has its own page, because each involves different products, prep work, and pricing.
Window Replacement in Danville
Replacing existing windows in Danville usually means pulling out old wood or aluminum units and installing new ones sized to the existing openings. We check for dry rot at the rough opening, which is common in older Danville homes, and correct flashing and sill slope before the new unit goes in. Varying frame depths on older construction are the main thing that makes this job different here. See the full breakdown at Window Replacement in Danville.
Window Installation in Danville
New window installation in Danville applies to additions, remodels, or replacing an undersized unit with something wider that requires a larger rough opening. That means framing changes, stucco or siding patching, and matching the exterior finish so the new section looks original. Sloped lots in Danville sometimes add access time. The full scope and pricing are on the dedicated page: Window Installation in Danville.
Patio Door Installation in Danville
Patio doors in Danville connect living space to backyards that often sit on sloped grade. We install sliding, French, and multi-panel systems from manufacturers like Therma-Tru and CGI, and we pay close attention to threshold height and drainage on sloped lots. A poorly sloped threshold sends water toward the house in winter. Details and pricing: Patio Door Installation in Danville.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Danville
We service and install products from eight manufacturer lines, including CGI, CWS, ES Windows, and ECO Window Systems. Parts for common Danville installations are stocked through our Bay Area supply network, so we’re not waiting on ground freight for standard hardware. See our brands for the full list.
Pricing for Window Company in Danville, CA
| Service | Typical range in Danville |
|---|---|
| Single window replacement | $800 – $1,400 installed |
| Full-home window replacement (15 windows) | $12,000 – $28,000 |
| Standard new window installation | $900 – $1,600 per opening |
| Custom window installation | $1,500 – $3,000+ per opening |
| Sliding patio door installation | $2,500 – $5,500 |
| French patio door installation | $3,000 – $7,000 |
| Multi-panel patio door installation | $6,000 – $15,000+ |
| Full-frame replacement with stucco patch | $1,200 – $2,200 per window |
Prices in Danville move up when HOA architectural review requires specific product lines, when second-story access on a sloped lot slows the crew, and when the existing frame has rot that needs repair before a new unit can go in. Every quote is written down before work starts, and the number on that paper does not change at the door.
Neighborhoods We Serve in Danville
We cover the full Danville area, from the older streets near downtown to the newer developments east of I-680. Our technicians are familiar with HOA requirements in several Danville communities and plan access for sloped driveways and tight side yards.
- Blackhawk
- Diablo
- Sycamore Valley
- Westside Danville
- Greenbrook
Service Area – Cities Near Danville
In addition to Danville, our crews regularly work in surrounding East Bay communities. Homeowners in San Ramon, CA, Alamo, CA, Dublin, CA, and Clayton, CA can schedule the same written-price, 365-day guarantee service.
Serving Danville, CA - Our Local Coverage Area
We’re based in the Danville area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About Window Company in Danville
We schedule Danville appointments on a set schedule each week, and dispatch is coordinated from our San Francisco Bay Area office. Standard estimates are usually available within a few business days. Call (817) 686-2228 and we’ll give you a specific date.
Some do, especially in master-planned communities like Blackhawk. We provide product specifications, color samples, and manufacturer documentation that cover what most Danville HOA boards request during architectural review. We don’t handle the application for you, but we make the paperwork easier.
Window replacement of like size typically doesn’t require a Danville building permit, but new openings, structural header changes, and some patio door conversions do. We’ll tell you during the estimate whether your job needs a permit, and if it does, we pull it and schedule the inspection.
If you’re in Danville and ready for a straight answer and a written price, call (817) 686-2228 to schedule your free estimate. There’s no pressure, no loose ends on price, and every job is covered in writing for 365 days.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Danville Customers Say
"Straight talk, on time, and clean. Four windows done by early afternoon and the old frames were hauled away."
- Ed S."Crew trimmed the interior neatly and caulked the outside. Looks professional."
- Julia N."Noise from the street dropped noticeably with the laminated glass."
- Harvey D.