Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
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AfterFast, Reliable Windows & Doors Across Union City
Window replacement in Union City typically runs $4,500-$15,000 for a full-home project, and most door or window swaps trigger permits that can require a geotechnical soils report because much of the city sits on former bay marsh. That’s a Union City reality most out-of-area contractors don’t discover until the building department sends the permit back. If you’re planning to replace aging aluminum windows, a sticking sliding patio door, or upgrade to impact-rated glass, we’re the crew that already knows what Union City’s building department will ask for before the first frame comes out. Call (877) 610-1318 and we’ll walk your specific street and situation before you sign anything.
Barrett & Sons Construction has replaced, installed, and repaired Windows & Doors across Union City’s tract-home neighborhoods for years. We work the flatlands, the older Decoto and Alvarado pockets, and the newer subdivisions near the Fremont line with the same approach: inspect first, write everything down, and never let a surprise show up as a number you didn’t approve. Tom Barrett runs the company the way he has since 1998, and his sons run the crews that show up at your door.
Why Barrett & Sons Construction Is Union City’s Preferred Windows & Doors Company
Most window and door companies in Union City quote a number over the phone and hope the framing behind your stucco is fine. We assume it might not be, because we’ve opened enough 1960s and 1970s tract walls in this city to know what bay moisture and settling soil do to rough-in framing. Every scope, every allowance, every price change arrives as a written change order before work happens. That’s not a policy we paste on the website; it’s written into every contract because Tom’s been on the wrong end of a surprised homeowner enough times to know better.
Calls to Barrett & Sons are answered by a live person, day or night, not a voicemail box or a call center. When you call about a window that won’t close or a patio door that’s let water in during the last winter storm, you talk to someone who knows Union City’s housing stock and can tell you honestly whether you’re looking at a simple swap or a structural issue. We publish our owner’s name, address, and license number because Tom wants you to look him up before you sign anything.
Our standing offers apply to every Union City job: $40 off any repair over $200, a free second opinion on any written estimate you’ve received from another company, no trip charge inside the county, and a permanent 10% discount for seniors and veterans. We also back every completed job with the 90-Day Done Right Promise. If it’s not done right, one call brings Tom back. That’s the whole agreement.
Our Windows & Doors Services in Union City
Window Replacement
Union City homes built in the 1960s and early 1970s are full of original single-pane aluminum windows with no weep holes and failing corner sealant. Salty bay air and winter storm winds have spent fifty years working moisture into the wall cavities behind them. We replace those windows with properly flashed, energy-rated units sized to the rough opening, and we don’t close the wall until the city inspector signs off on the rough-in. A typical window replacement in Union City runs $4,500-$15,000 depending on how many openings and what the framing looks like once we expose it.
Door Installation
Front entry doors, side doors, and garage access doors in Union City’s slab-on-grade homes take abuse from both sides: bay moisture wicking up through the slab and delta winds driving rain at the threshold. We install pre-hung doors with proper sill pans, flashing tape, and sealant detailing that actually stands up to this climate. If the subfloor has settled, which it often has near the old Alvarado salt pond margins, we fix that before hanging the door so it doesn’t bind in two years.
Sliding & Patio Doors
Sliding patio doors are where Union City’s liquefaction-prone soils show up first. When the concrete subfloor settles unevenly, the rough-in goes out of square and the door binds, drags, or lets water through the bottom track. On a 1968 stucco tract house near Decoto Road, our crew opened up a sliding patio door wall and found the original rough-in sill had rotted through from bay-driven moisture wicking up through the slab. We framed a new pressure-treated sill, installed a Simpson Strong-Tie hold-down to meet current shear-wall requirements, and waited for the city’s inspection sign-off before closing the wall, all documented as a change order with materials and labor shown in writing. Custom-size sliders with new flashing run $3,000-$10,000 in Union City.
Impact Windows & Doors
Union City doesn’t sit in a hurricane zone, but impact-rated windows and doors solve real problems here: they stop wind-driven rain from pressurizing the wall cavity, they hold up to the diablo winds that rake the flatlands, and they do a better job blocking the noise from I-880 and the BART corridor. Impact window installation in Union City runs $8,000-$25,000 for a whole-house retrofit. We’ll tell you honestly if the upgrade makes sense for your specific street, because on some blocks it does and on others it’s money better spent on flashing and sealing.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Union City
We install and service windows and doors from manufacturers you can look up, not mystery brands off a van. For Union City window replacement we regularly work with Andersen and Marvin products, and we stock the common replacement parts and hardware local to this area so you’re not waiting on a two-week freight order for a latch or a roller. If you have a Schluter-treated threshold detail or a Grohe handle set that needs matching hardware, we handle that too. The brands go in writing on your estimate, and what we install is what you approved.
Common Windows & Doors Problems We See in Union City Homes
- Leaking aluminum-frame windows from the 1960s and 1970s. The original sealant at the frame corners has degraded after decades of salt air and winter storms, and moisture is working into the wood framing behind your stucco. By the time you see the leak on the interior wall, the damage is usually already in the rough opening.
- Binding sliding patio doors on settled slabs. Union City’s flatland tracts sit on former bay marsh and alluvial fill, and concrete slabs settle unevenly over time. When the rough-in goes out of square, the door drags, the lock stops aligning, and water finds the gap at the bottom track.
- Rotting king studs and sill plates from wind-driven rain. Original single-pane windows in Union City’s tract homes don’t have modern weep holes or flashing, so winter storm moisture saturates the wall cavity and rots the load-bearing framing around the opening. We’ve replaced king studs on window jobs that started as a simple swap.
- Fogged double-pane replacements installed by out-of-area crews. If the flashing wasn’t detailed right, the new window leaks just like the old one did, and the glass fogs from trapped moisture. We see this on homes where someone chased the lowest quote and got a window with no proper sill pan behind it.
Pricing for Windows & Doors in Union City, CA
Here’s what we quote for window and door work in Union City’s current market. These numbers reflect real projects in the flatland tracts and older Decoto and Alvarado neighborhoods, not national averages pulled from a database.
| Service | Union City Price Range |
|---|---|
| Window Replacement | $4,500-$15,000 |
| Impact Window Installation | $8,000-$25,000 |
| Sliding & Patio Doors (custom size, with new flashing) | $3,000-$10,000 |
What moves the number on a Union City window or door job is what’s behind the stucco. If the framing is sound and the rough opening is square, the price holds. If we find rot, settling, or outdated wiring in the wall, that’s a written change order with materials and labor itemized before we touch it. The free estimate we give you is a line-item scope in writing, and permits are pulled on every eligible job. Call (877) 610-1318 to schedule yours.
We Also Serve Cities Near Union City
Beyond Union City, our crews work regularly in Union City‘s neighboring communities, including Newark, Fremont, Fairview, and Hayward. The soil conditions and housing stock change block by block across the county line, and we adjust our approach accordingly. If you’re in one of those cities and looking for the same written-scope, permitted, inspection-backed approach, we cover it.
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 - Windows & Doors in Union City
Union City’s flatland tracts sit on former bay marsh and alluvial fill that the California Geological Survey maps as high liquefaction hazard zones. The city’s building department commonly requires a licensed geotechnical engineer’s soils report as a condition of foundation-related permit issuance, and window or door replacements that touch the rough opening or the slab edge can trigger that requirement. Fremont’s hillside subdivisions and higher-ground Hayward neighborhoods sit on different geology, so the same permit doesn’t ask for the same paperwork. The report typically adds 4-6 weeks before a shovel hits the ground, which is why we flag it in the estimate instead of discovering it after you’ve scheduled the job. Call (877) 610-1318 and we’ll tell you whether your specific parcel will likely require one.
You get a written change order with the exact scope, materials, and labor itemized, and nothing gets touched until you approve it in writing. Rotted sills and king studs are common in Union City’s slab-on-grade tract homes, and outdated wiring shows up when walls are open for a door swap. Our contract requires that every scope change and every price change arrives on paper before work proceeds, because the allowance that isn’t on paper is a surprise waiting for a date. Call (877) 610-1318 to talk through your specific door opening and what we’d likely find behind it.
No, Union City code does not require impact-rated glass for standard window replacement in most flatland neighborhoods. What it does require is proper flashing, weep holes, and a rough opening inspection before the wall is closed. Impact windows are an option if you’re near a noisy corridor, if you want the water-intrusion resistance during winter storms, or if you’re doing a broader envelope upgrade. We’ll give you an honest read on whether the $8,000-$25,000 price range for impact glass makes sense for your street, or whether a properly flashed standard replacement at $4,500-$15,000 gets you what you need. Call (877) 610-1318 for a straight answer on your specific block.
We schedule the rough-in inspection before we set the window, and we don’t put a single nail into trim until the city signs off. In Union City, the inspector is checking the flashing, the shear-wall hold-downs, and the rough opening dimensions against what the permit showed. We like the inspector, because the permit inspector works for you, not for me. If the inspector flags something, we fix it and call for a re-inspection before closing the wall. Then the finish work happens once the sign-off is in hand. Call (877) 610-1318 and we’ll walk you through how the inspection sequence works for your specific job.
No, window replacement doesn’t change how your slab settles, but it often reveals that settling has already happened. When a Union City slab settles unevenly, the rough openings go out of square and the old aluminum frames flexed to hide it. A new window won’t flex, so any existing slab movement becomes visible as a gap or a bind at the new frame. If the settling is significant, the fix is foundation work, not a bigger window, and that’s a conversation we have upfront, not after you’ve paid for glass. Call (877) 610-1318 and we’ll inspect the rough opening before recommending anything.
If you’re in Union City and your windows are leaking, your patio door is binding, or you’re just tired of drafts and fogged glass, call Barrett & Sons Construction at (877) 610-1318 for a free, written, line-item estimate. We’ll inspect the openings, tell you what the permit will require, and put every number on paper before you decide anything.
Written by Tom Barrett, Owner at Barrett & Sons Construction, serving Union City, CA since 1998.