Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterWindow Company in San Martin, CA
Window and door replacement in San Martin runs $380 to $1,400 per opening depending on size, frame material, and whether the original rough opening needs structural modification. Most San Martin homeowners replace 8 to 15 units at once, with whole-home projects typically landing between $6,500 and $18,000. Call (562) 478-8017 and we’ll put a written price in your hands before any work starts.
San Martin sits apart from the rest of Santa Clara County. The ranchette properties along Monterey Road and the horse estates off San Martin Avenue were built for views, not efficiency, with oversized single-pane picture windows and wide sliding glass doors that now leak heat and rattle in the afternoon wind. We’re Lightwell Windows & Doors, part of the Cedarwell network, and we measure, order, and install windows and doors specifically for this unincorporated valley corridor where standard sizes rarely fit and the Coyote Gap winds punish seals year-round.
Why San Martin Homes Are Different
San Martin’s housing stock is almost entirely custom-built single-family ranchettes on 1 to 10-plus acre lots, most constructed between the 1960s and 1990s. Builders chose aluminum single-pane framing and non-standard rough openings to maximize pastoral views. That means replacement projects routinely require custom-order units and careful field measurement rather than box-store swaps.
The southern Santa Clara Valley wind corridor makes things harder here than in neighboring Morgan Hill or Gilroy proper. Afternoon thermal winds accelerate through the Coyote Gap, striking San Martin properties directly and causing premature weatherstripping wear and sash seal failure. The Mediterranean pattern of dry summer heat with wide diurnal swings, followed by wet, driving-rain winters, cycles frames and glazing seals hard year-round. We’ve replaced windows in San Martin where the original seals failed twice as fast as identical units installed just five miles east.
Because San Martin is unincorporated Santa Clara County, every permitted window and door replacement routes through the County of Santa Clara’s Department of Planning and Development, with its own Title 24 energy-compliance review and inspection scheduling. Contractors accustomed to Morgan Hill or Gilroy’s incorporated city systems often miss permit timelines here. We coordinate that County workflow on every San Martin job.
Our Main San Martin Services
San Martin homeowners call us most often for these three projects, each with its own local conditions and pricing page.
Window Replacement in San Martin
We remove aging single-pane aluminum units and install modern, energy-efficient windows sized to your existing rough openings. In San Martin, that often means custom-manufactured units from CWS or ES Windows because the original 1960s-to-1990s framing dimensions don’t match today’s stock sizes. We handle County permit submission, Title 24 compliance documentation, and inspection scheduling. Our crew works with shoe covers and drop cloths on every visit, and we photograph the clean-up before we leave. Window Replacement in San Martin has full pricing and project details.
Window Installation in San Martin
New window installation in San Martin typically means cutting new rough openings into existing walls, often on ranchette additions or converted outbuildings where the original builder never installed glazing. We structural-check every opening, flash for the wind-driven rain that comes through the Coyote Gap, and seal against the thermal expansion that wide diurnal swings cause here. Every installation includes our 365-Day Done Right Promise. Window Installation in San Martin covers new-construction and addition projects.
Door Installation in San Martin
We replace and install entry doors, patio sliders, and French doors on San Martin’s rural estates, where wide openings frame vineyard and pasture views but also catch the full force of afternoon valley winds. Our door installations use pet-safe sealants where alternatives exist, and we time noisy cutting to avoid family quiet hours per our C.A.R.E. values. We carry Therma-Tru and CGI door systems with hardware rated for high-cycle wind exposure. Door Installation in San Martin has specifics on styles and pricing.
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 San Martin
We stock and install from eight manufacturer brands: PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux. For San Martin’s custom rough openings, we most often order through CWS, ES Windows, and ECO Window Systems, with typical custom-turnaround of two to four weeks from field measure to install. See our brands for full specifications and warranty terms.
Pricing for Window Company in San Martin, CA
| Service | Typical range in San Martin |
|---|---|
| Single window replacement (standard size) | $380 – $720 |
| Single window replacement (oversized/custom) | $650 – $1,200 |
| Picture window replacement (large format) | $850 – $1,400 |
| Sliding glass door replacement | $1,100 – $2,400 |
| French door installation | $1,400 – $3,200 |
| Entry door replacement | $950 – $2,100 |
| New window installation (new rough opening) | $520 – $980 |
| Whole-home window replacement (10-12 units) | $6,500 – $12,000 |
| Whole-home project (15+ units with doors) | $11,000 – $18,000 |
| Custom field measure and sizing | $150 – $250 (credited to job) |
| Title 24 compliance documentation | $85 – $150 |
What pushes San Martin prices higher: non-standard rough openings requiring custom-manufactured units, structural modification to original 1960s-to-1990s framing, and the extended County permit timeline that can add a week to project scheduling. What doesn’t change: our written price before any work starts, with no invoice surprise at the end.
Neighborhoods We Serve in San Martin
We work across San Martin’s unincorporated acreage, from the estate properties along San Martin Avenue to the ranchettes near the Coyote Valley and the homes tucked along Llagas Road. Crews dispatch from our San Francisco Bay Area office and typically schedule San Martin estimates within two business days.
- San Martin Avenue corridor estates
- Coyote Valley ranchette properties
- Llagas Road area
- Monterey Road rural homes
- Masten Avenue vicinity
Service Area – Cities Near San Martin
We serve San Martin directly and routinely work with homeowners in surrounding communities. Our crews also handle projects in Morgan Hill, CA, Gilroy, CA, Los Gatos, CA, and Campbell, CA. Each city has its own permit environment and housing stock, and we adjust our workflow accordingly.
Serving San Martin, CA - Our Local Coverage Area
We’re based in the San Martin 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 San Martin
Yes. Because San Martin is unincorporated Santa Clara County, we submit every permitted job through the County of Santa Clara’s Department of Planning and Development and handle Title 24 energy-compliance review and inspection scheduling. Call (562) 478-8017 to confirm whether your specific project requires permitting.
Most San Martin projects run two to five days on site, with custom-ordered units adding two to four weeks to the front end for manufacturing. County permit review typically adds five to ten business days compared to incorporated cities. We build this timeline into your written quote so you know before we start.
Yes. Our C.A.R.E. values include respecting family quiet hours, and we schedule noisy work outside nap times when you let us know. We use drop cloths, shoe covers, and pet-safe products wherever there’s a choice, and we photograph the clean-up before leaving. Call (562) 478-8017 to discuss timing that works for your household.
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 San Martin Customers Say
"Lovely windows and a tidy install. One window came in a couple weeks late from the factory, so that opening finished after the others. They kept me posted and the rest was spotless."
- Mia Donnelly"Quiet, considerate install of several windows. They cleaned the glass and the sills and vacuumed every room. You'd never know a crew had been through. House is quieter and brighter."
- Brent Sakamoto"New patio slider. Clean install, they protected the floor and hauled off the old door. Quiet, polite crew that worked around my work calls without complaint."
- Andre Bellamy