Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Fremont
Custom window and door work in Fremont is not a one-size-fits-one trade. The house on a flatlands cul-de-sac off Mowry Avenue, built in 1968 with original aluminum sliders, wants a different window than the 1912 Niles bungalow with double-hung sashes that have been painted shut since the Johnson administration. We know because we work both ends of this city every week. TruePane Windows & Doors handles custom shape windows, architectural grilles and SDLs, oversized glass panels, storefront glazing, and curtain wall systems for Fremont homeowners who plan to stay in the house another twenty years. If you are pricing the job, call (888) 635-0804 for a free estimate. A live person answers.
Why TruePane Windows & Doors Is Fremont’s Preferred Custom Windows & Doors Company
We started as a glazier’s shop, and we still talk like one. Dale Kessler founded TruePane in 2008 after years of watching installs go out of true and warranties get voided on technicalities. The rule on his whiteboard has not changed since: if the pane is not true, the job is not done. That is the standard our Custom Windows & Doors crew carries into every Fremont job, from a simple slider swap in the flatlands to a full storefront glazing package near the Fremont Hub. We hire local, train apprentices into journeymen, and show up in uniform with the manufacturer line sheets on paper so you can see exactly what you are buying side by side.
Fremont homeowners tend to have been burned once already. They call us because they want the work done right the first time, and they want a company that will still answer the phone in a decade if something goes sideways. That is why we register both manufacturer warranty layers in writing before the truck leaves the driveway. It is called The Keystone Standard: durations stated, documents in your hand, and a Done Right Promise on top. If it is not done right, we make it right. No paperwork fight, no arguing, no fine print that covers neither.
Our Custom Windows & Doors Services in Fremont
Custom Shape Windows
Around Mission San Jose and upper Irvington, we regularly see requests for arched, radius, trapezoid, and eyebrow windows that have to clear HOA design-review standards specific to Fremont’s hillside neighborhoods. Custom shape windows in Fremont typically run $850 to $2,400 per opening depending on the radius, glass package, and whether the rough opening needs reframing. On older hillside homes, the rough opening has often drifted out of square from Hayward Fault microslippage, so expect the quote to include shimming and header adjustment.

Architectural Grilles & SDLs
Simulated divided lites, or SDLs, are the most common request we get from Fremont homeowners who want the look of true divided lite without losing thermal performance. A standard SDL package on a double-hung or casement unit adds $180 to $420 per sash in this market. For Niles Craftsman homes with original muntin patterns, we match the historic grid profile, bar width, and spacing so the replacement reads as original from the sidewalk. That kind of matched-profile work is not a catalog order. It is measured on site and built to the opening.

Oversized Glass Panels
Fremont’s 1970s and 1980s custom-built homes in the Warm Springs and Mission foothills often have those big fixed picture windows facing the hills. Replacing an oversized panel – anything over 40 square feet – costs $3,200 to $8,500 in Fremont once you factor in tempered glass, low-E coating, argon fill, and a two-person glazing crew to set it without racking the frame. We quote the panel, the setting, and the flashing as one number so the bill matches the estimate.

Commercial Storefront Glazing
For storefronts along Fremont Boulevard, Mowry Avenue, and the Pacific Commons retail area, we replace and reseal aluminum storefront framing, doors, and glass. Salt-laden air from the Coyote Hills marshes accelerates oxidation on aluminum frames, so we specify corrosion-resistant finishes and stainless hardware on flatlands storefront work. A typical storefront door and sidelite package in Fremont runs $2,800 to $6,500 depending on swing, hardware, and glass type.

Curtain Wall Systems
For mixed-use buildings and larger custom homes in Fremont, curtain wall systems combine continuous glass with narrow sightlines. These are engineered packages, not stock units. A full residential curtain wall elevation in Fremont usually starts around $18,000 and moves up based on panel size, wind-load calculations, and whether the building sits in a seismic zone that requires additional anchoring. We pull permits, submit engineering, and coordinate with the city on inspections so the work is signed off properly.

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 Fremont
We are an authorized installer for more than a dozen manufacturer lines, including. For Fremont’s impact and marine-environment needs, we also work extensively with PGT, CGI, and ES Windows. That matters because warranty coverage depends on the manufacturer accepting the installation standards. We install to spec, register both warranty layers in writing, and keep the paperwork where you can find it. Fremont customers get side-by-side quotes on paper: same opening, two or three manufacturer lines, so the price comparison is honest.
Common Custom Windows & Doors Problems We See in Fremont Homes
- Out-of-square rough openings from Hayward Fault microslippage. In Mission San Jose and upper Irvington, decades of subtle seismic drift rack door and window openings out of plumb. A standard pre-hung door often needs custom shimming and header adjustment that a non-fault-adjacent city like Milpitas would never require. We check plumb before quoting, so the number on the bid is the number you pay.
- Salt-air corrosion on aluminum frames in the flatlands. Homes west of I-880 sit in the marine influence zone off the Coyote Hills marshes and Alameda Creek tidal flats. Aluminum window frames there pit and oxidize noticeably faster than the same frames in Newark or Union City. Once the frame corrodes, the seal fails and the glass fogs. We specify corrosion-resistant finishes or replace with vinyl or fiberglass where it makes sense.
- Original 1950s through 1970s aluminum single-pane sliders that are done. Fremont’s post-incorporation tract boom left tens of thousands of homes with single-pane aluminum sliders that lost their thermal performance a generation ago. Once walls are opened, those units trigger California Title 24 energy code upgrades. We plan for that in the estimate so the inspection does not become a change order.
- Deteriorated wood-frame windows in Niles and Mission San Jose pre-1920s homes. Craftsman and Victorian houses in the historic districts have double-hung sashes with rotted sills and painted-shut hardware. The right fix is a matched-profile replacement, not a stock insert shoved into a century-old opening. We measure the profile, match the sightlines, and keep the character intact while upgrading the glass package.
Pricing for Custom Windows & Doors in Fremont, CA
You already know the shape of the number. Custom window work in Fremont runs about $850 to $2,400 per custom shape opening, $3,200 to $8,500 for oversized glass panels, and $180 to $420 per sash for architectural grilles and SDLs. Storefront glazing starts near $2,800 and a residential curtain wall elevation begins around $18,000. What moves those numbers in Fremont specifically: whether the rough opening is square, whether seismic anchoring is required, and whether the site sits on the salt-air west side or the warmer foothills on the east. We write those variables into the estimate as allowances, in plain terms, so the bill matches the bid. Call (888) 635-0804 for a free written line-item quote.
We Also Serve Cities Near Fremont
Our crews work regularly in Newark, Union City, Hayward, and Pleasanton, and we schedule Fremont jobs with the same punctuality: we will be there when we say. If you live a block over the city line, the estimate is still free. Call (888) 635-0804 and a live person will set the appointment.
Serving Fremont, CA - Our Local Coverage Area
We’re based in the Fremont 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 - Custom Windows & Doors in Fremont
The Hayward Fault runs directly beneath the eastern foothills, and decades of microslippage have racked door openings out of square in Mission San Jose and upper Irvington homes. A standard pre-hung door assumes the opening is plumb. It is not. We check plumb before quoting, then price the shimming and header adjustment that the opening actually needs. That is why our Fremont door quotes look different from a Milpitas quote on the same vintage house. Call (888) 635-0804 and we will measure it for you.
The usual findings: undersized or rotted rough framing around the original aluminum sliders, failed waterproofing at the sill, and original single-pane units that no longer meet Title 24. Once the wall is open, the building code requires the replacement to meet current energy standards. Our process is inspection first, allowances written into the contract, and any surprise priced and approved in writing before we touch it. That is how the quote stays the quote.
It is the salt. Fremont’s west side sits against the Coyote Hills marshes and Alameda Creek tidal flats, pulling marine air inland. That salt-laden moisture accelerates pitting and oxidation on aluminum frames at a rate noticeably faster than cities just a few miles north. Once the frame corrodes, the seal fails and the glass fogs. We specify corrosion-resistant finishes or alternative frame materials for west-side Fremont work.
Title 24 sets minimum energy performance standards for replacement windows, and the code requirement kicks in the moment a wall is opened on a permitted remodel. If your 1960s tract home still has original single-pane aluminum sliders, the replacement must meet current U-factor and solar heat gain requirements. We quote compliant units from the start, so the permit inspection does not become a surprise. Call (888) 635-0804 for an exact quote on your opening.
Yes. We measure the original sash profile, bar width, and sightlines, then build a matched-profile replacement with modern insulated glass, low-E coating, and a frame material that holds its thermal rating. The exterior reads as original. The interior reads as efficient. That is the standard for historic-district work in Niles and Mission San Jose.
If you are pricing custom windows or doors in Fremont, call (888) 635-0804 and ask for a free written estimate. A live person answers, 24 hours a day, 7 days a week. We will measure the opening, check plumb, and give you the number in writing before any work starts. That is a square deal.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Fremont since 2008.



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