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 Martinez
Custom window and door work in Martinez usually starts with a specific problem: the house was built before standard sizes existed, or the strait winds have been working on the openings for eighty years. We replace, reframe, and install custom units across the 94553 zip code, from the Victorian-era blocks near downtown to the hills above Alhambra Valley. Our crews know which Martinez homes carry original 1920s sash weights and which newer builds near Pacheco Boulevard are already showing hardware corrosion from refinery-corridor air. Call (888) 635-0804 for a free estimate, and we will send a technician who has measured openings in this town before.
Why TruePane Windows & Doors Is Martinez’s Preferred Custom Windows & Doors Company
TruePane has spent years in the Bay Area window and door trade, and the work we do in Martinez is work we plan to stand behind for decades. Dale Kessler founded this company on a rule that still governs every install: if the pane is not true, the job is not done. That is not a slogan. It is the standard our crew carries into every Craftsman bungalow off Alhambra Avenue and every waterfront home near the Carquinez Strait.
We are an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI. When a Martinez homeowner calls, we quote those lines side by side on paper so the differences in frame material, glass package, and warranty are clear before any money changes hands. Our technicians are background-checked and uniformed. They measure twice. They register both warranty layers in writing before the truck leaves the driveway. That is what The Keystone Standard means, and it applies to every Custom Windows & Doors job we take.
We also answer the phone. A live person picks up 24 hours a day, 7 days a week, not a voicemail tree and not a regional call center. For a homeowner in Martinez who has been burned by a contractor that disappeared after the check cleared, that matters.
Our Custom Windows & Doors Services in Martinez
Most of what we do in Martinez falls into four categories, and each one gets handled differently depending on where in town the house sits. A custom shape window in a 1910 Craftsman near downtown has different constraints than a storefront on Main Street or an oversized glass panel on a strait-facing wall.
Architectural Grilles & SDLs
Martinez has one of the densest concentrations of historic Craftsman and Victorian homes in Contra Costa County, and many of them sit within the city’s historic district overlay. That means grid patterns are not optional. We build architectural grilles and simulated divided lites (SDLs) to match the original muntin profiles, bar widths, and spacing on windows that are 80 to 130 years old. Whether the home is on Ward Street or up near the John Muir house, the replacement has to look like it has always been there. We spec true SDLs with exterior and interior bars, not snap-in grids that read as cheap from six feet away.

Custom Shape Windows
Arches, radius tops, trapezoids, circles, hexagons: older Martinez homes are full of them, and big-box replacement programs do not carry them. We build custom shape windows to the exact rough opening dimensions, which matters when a 50-year-old addition has drifted an eighth of an inch out of square. The strait winds push hardest on the upper corners of arched windows, so we pay particular attention to frame reinforcement and sealant detail on radius units anywhere within a mile of the waterfront.

Oversized Glass Panels
Homes with view corridors toward the Carquinez Strait often have large fixed glass or wide sliding doors, and those units take real wind load. A 15 to 25 mph sustained afternoon breeze does not just whistle, it flexes. We install oversized glass panels with laminated or tempered glass packages engineered for deflection, plus stainless hardware where the wind and moisture are worst. A poorly braced panel near the water will bow visibly within a season or two. We frame for that.

Commercial Storefront Glazing
Downtown Martinez storefronts along Main Street and Marina Vista deal with the same strait wind and a fair amount of foot traffic. We replace broken or fogged commercial glass, rebuild storefront systems, and install curtain wall assemblies for larger commercial projects. For these jobs we coordinate around business hours where we can and pull permits when the scope requires.

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 Martinez
We carry and install products from PGT, CGI, and ES Windows, among others, and we stock common replacement hardware locally so a Martinez customer is not waiting three weeks for a hinge. PGT and CGI matter here specifically because their impact and wind-rated lines are built for exposed coastal and strait-facing conditions; ES Windows gives us European-style narrow frames for view-heavy custom work. When we quote these against Andersen, Pella, or Marvin, it is the same process every time: side-by-side on paper, warranty layers listed, durations stated.
Common Custom Windows & Doors Problems We See in Martinez Homes
- Warped original wood sashes in the 1890s-1930s bungalows. Decades of strait moisture cycling swells the wood, and the sashes bind in their jambs. Off-the-shelf replacements will not work; these openings almost always need custom jamb extensions and scribed trim to fit the settled frame.
- Failed flashing at the sill from wind-driven moisture. The Carquinez wind repeatedly pressurizes the building envelope. A flashing job done wrong leaks within a few seasons and rots the rough framing. We pull the old unit, repair or reframe the opening, and tape-flash before the new window goes in.
- Corroded locks and hinges near Pacheco Boulevard. Sulfur compounds in the air from the refinery corridor attack standard zinc and bare aluminum hardware. Hinges seize, locks snap. We spec stainless or PVD-coated hardware for any job within two miles of that corridor.
- Fogged insulated glass units on strait-facing walls. The daily thermal swing between cool marine afternoons and still, warmer evenings stresses IGUs. Seals fail faster here than in Concord or Lafayette. Replacing the glass is straightforward; finding the source of the moisture entry is the part that keeps the next seal from failing too.
Key Takeaways
- Custom window and door work in Martinez typically runs $900-$3,200 per opening depending on size, material line, and whether reframing is required.
- Historic district homes often require grid-pattern matching and custom jamb extensions, which adds 15-25% over a standard replacement.
- Within two miles of the Shell refinery corridor, we spec stainless or PVD-coated hardware as standard.
- Every job carries the Done Right Promise and The Keystone Standard: both warranty layers registered in writing before we leave.
- Call (888) 635-0804 for a free estimate. A live person answers.
Pricing for Custom Windows & Doors in Martinez, CA
A straightforward custom window replacement in Martinez, one that does not require reframing, generally runs $900 to $2,400 per opening for vinyl or wood-clad units. Custom shape windows, like an arched top or a radius unit for a Craftsman porch, run $1,800 to $4,800 because the glass and frame are built to order. Oversized glass panels with wind-rated frames for strait-facing walls start around $3,000 and can exceed $8,000 for laminated glass on large openings. Architectural grilles and SDLs add $150 to $500 per window depending on bar width and profile. If the rough framing is undersized or rotted, which we find often in the 1890s-1930s homes near downtown, the reframing allowance adds $400 to $1,200 per opening and it is written into the contract before work begins, not discovered after. Call (888) 635-0804 for a written, line-item quote on your specific house. Estimates are free.
We Also Serve Cities Near Martinez
TruePane serves Martinez and the surrounding communities of Pleasant Hill, Benicia, Lafayette, and Concord. If you live just over the city line, the same crew, the same warranty process, and the same live-answer phone line apply. Call (888) 635-0804 and we will get a technician scheduled for your area.
Serving Martinez, CA - Our Local Coverage Area
We’re based in the Martinez 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 Martinez
Yes, if the home sits within the city’s historic district or carries a preservation overlay, the replacement windows must generally match the original grid pattern, muntin profile, and sightlines. That means true SDLs or architectural grilles, not snap-in grids. We have matched grids on Craftsman and Victorian homes throughout the downtown district, including several off Alhambra Avenue, and we can build the replacement to the exact bar width the original sash carried. Call (888) 635-0804 and we will check your property against the current district guidelines before you spend a dollar.
That is almost certainly sulfur compound exposure from the refinery corridor air, and it is a problem we fix regularly at TruePane by swapping standard zinc or bare aluminum hardware for stainless or PVD-coated components. It is not a manufacturer defect and it will keep happening with standard hardware. If your windows are within two miles of the Shell corridor, we spec the upgraded hardware from the first estimate. Call (888) 635-0804 for a free assessment.
Usually not. Whistling under strait wind is most often air infiltration at the weatherstripping or around the sash lock, not a failed glass seal. We route weatherstripping, adjust the sash, and if the frame is flexing under wind load we address the structural cause rather than adding more caulk. But if you see condensation between the glass panels, that is a seal failure. Call (888) 635-0804 and we will send a technician to diagnose it properly.
The most common triggers in Martinez are undersized header replacement, added hold-down hardware, and safety glazing if the window is near a door or low sill. Older homes in the downtown district often have rough framing that was fine in 1925 but does not meet current seismic and wind-load standards. We handle it by inspecting first, writing allowances into the contract ahead of time, and getting written approval before any surprise scope gets added. In the downtown Craftsman district off Alhambra Avenue, our crew replaced a 1920s double-hung with a custom Marvin clad-wood unit to match the historic grid pattern. Once the old sash was out, the opening showed undersized rough framing and rotted jamb from strait moisture. We reframed to current code, flashed with tape, and the inspector signed off the same day; the homeowner did not pay a dollar beyond the allowance we had written into the contract. Call (888) 635-0804 for an estimate that accounts for the worst case, not the best case.
Yes. We spec oversized glass with laminated or tempered packages engineered for deflection under sustained wind loads, and we frame the opening so the structure, not the glass, carries the wind pressure. Within two miles of the waterfront we also use stainless hardware and fusion-welded frames as standard. A panel installed without that reinforcement will bow visibly within a season or two. Call (888) 635-0804 and we will measure the opening and quote the panel for the actual wind exposure on your wall.
Call TruePane for Custom Windows & Doors in Martinez
Opening up an old Martinez wall reveals what the house has been hiding for decades: undersized framing, rotted jambs, failed flashing, and hardware the strait air has been eating. The only way to handle that honestly is to expect it, price for it, and tell you before the first board comes off. That is how we work. We have been in this trade since 2008, and we plan to be answering the phone in this town thirty years from now. We stand behind every install with the Done Right Promise and The Keystone Standard: both warranty layers registered in writing, durations stated, before the truck leaves the driveway.
Call (888) 635-0804 to schedule your free estimate. A live person answers, day or night, and the quote is in writing. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Martinez and the surrounding East Bay communities.



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