Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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Most Union City window and door jobs run $800 – $4,200 per opening depending on whether we’re fitting a standard vinyl replacement into a 1970s tract-home slider pocket or rebuilding a racked frame in an older Decoto home. We’re Lightwell Windows & Doors, and our crews work the Union City flatlands regularly. Call (562) 478-8017 to schedule a free estimate with a written price before any work starts.
Why Union City Homes Are Different
Union City sits squarely in the Hayward Fault’s influence zone, and that geological reality shows up in our measurements. Homes in the Decoto and Alvarado flatlands, built during the 1960s through 1980s tract-home boom, often have door frames that have racked slightly out of square from decades of micro-seismic settling. A “simple” window swap frequently becomes a frame-out job requiring custom shimming and sill leveling. The marine air rolling inland from the southern bay shore, especially through summer mornings, accelerates oxidation on original aluminum slider frames far faster than in drier East Bay cities like Livermore or Pleasanton just 20 miles east. We’ve pulled out single-pane aluminum units in central Union City that were structurally intact but so oxidized the sashes wouldn’t slide. The Dumbarton Bridge corridor funnels steady afternoon winds across the flatlands, too, which means weatherstripping and door sweeps here take more abuse than homeowners expect.
Our Main Union City Services
Union City homeowners call us most often for these three jobs, each with its own local conditions and pricing page.
Window Replacement in Union City
Window replacement in Union City usually means pulling original single-pane aluminum sliders from 1960s – 1980s tract homes in the Decoto and central flatlands and fitting modern dual-pane units that meet current California Title 24 standards. Because of seismic racking and salt-air frame corrosion, we often find the existing rough opening needs reframing or sill-pan work before the new unit goes in. We carry CGI, CWS, and ECO Window Systems products suited to these conditions. Window Replacement in Union City
Window Installation in Union City
New window installation in Union City covers additions, ADUs, and garage conversions, many in the newer developments near the eastern edge of town. These jobs require fresh rough openings, proper flashing for the marine climate, and glass packages selected for the fog-prone flatlands rather than inland heat. We size and order from ES Windows and ViewLux lines with the salt-air exposure in mind. Window Installation in Union City
Door Installation in Union City
Door installation in Union City frequently involves patio sliders and entry doors in the older stock, where we’ve learned to check the track and sill first. In Decoto especially, we regularly find sliding door tracks that are not just corroded but physically twisted from the combination of salt-air oxidation and fault-line micro-movement over 40-plus years. That means sill-pan leveling and shimming before any new door unit will operate correctly. Door Installation in Union City
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 Union City
We stock and install PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux products. For Union City’s marine climate, we typically recommend CGI and ECO Window Systems for coastal-grade corrosion resistance, with CWS as a strong mid-range option. Most parts ship to our San Francisco Bay Area office within 3 – 5 business days, so we’re not waiting on cross-country freight to start your job. See our brands for full specifications.
Pricing for Window Company in Union City, CA
| Service | Typical range in Union City |
|---|---|
| Standard vinyl window replacement (per opening) | $800 – $1,400 |
| Fiberglass window replacement (per opening) | $1,200 – $2,100 |
| Frame-out / racked opening rebuild (per opening) | $1,800 – $3,200 |
| New construction window installation (per opening) | $1,100 – $1,900 |
| Sliding patio door replacement | $1,800 – $3,500 |
| Entry door replacement (prehung) | $1,400 – $2,800 |
| Sill pan / track leveling and shimming | $400 – $900 |
| Full-frame door installation with sidelites | $2,500 – $4,200 |
What pushes Union City prices toward the higher end: seismic racking requiring frame rebuilds, salt-air corrosion that has fused original frames to the opening, and older homes in Alvarado with non-standard rough openings. Every estimate we provide is a written, line-item price before any work starts. No change orders, no invoice surprises.
Neighborhoods We Serve in Union City
Our crews work across Union City’s full residential footprint, from the pre-WWII bungalows of old Alvarado to the 1970s and 1980s tracts of central Union City and the newer infill near the eastern edge. Scheduling and dispatch are coordinated from our San Francisco Bay Area office, with most Union City appointments available within a week of your call.
- Decoto
- Alvarado
- Central Union City (flatlands tract homes)
- Eastern Union City (newer developments)
- Union City Hills (slope-facing homes with wind exposure)
Service Area – Cities Near Union City
We serve Union City directly and regularly work the surrounding southern East Bay corridor. Our crews are also in Fremont, CA, Newark, CA, San Lorenzo, CA, and Castro Valley, CA on typical weeks. If you’re unsure whether your address falls in our service area, call (562) 478-8017 and we’ll confirm.
Serving Union City, CA - Our Local Coverage Area
We’re based in the Union City 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 Union City
Most Union City homeowners get an in-home estimate within 5 – 7 business days of calling. We schedule specific arrival windows, not all-day waits, and our technician will call 30 minutes before arriving. Call (562) 478-8017 to book your free estimate.
Replacement-in-kind jobs typically don’t trigger permit requirements, but any change to the opening size, structural header, or egress compliance does. We pull permits when needed and schedule inspections as part of the job, never as an add-on surprise. Call (562) 478-8017 and we’ll check your specific project against Union City’s current building code.
Yes. Our technicians follow C.A.R.E. values on every visit: Clean up like it’s our own home, Ask before we move or touch anything, Respect the family’s time and quiet hours, Explain the price before the work. We use drop cloths and shoe covers, select pet-safe caulk and sealants where alternatives exist, and can schedule quieter tool phases during nap times. A photo of the clean-up is sent before the crew leaves.
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 Union City Customers Say
"Replaced six windows. The crew laid runners through the house and vacuumed each room as they finished. With a crawling baby, that no mess thing meant a lot. Windows are gorgeous."
- Rosalind Kemp"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