Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
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AfterFast, Reliable Custom Windows & Doors Across San Lorenzo
Custom window and door work in San Lorenzo is rarely a simple swap. Most homes here were built between 1945 and 1960, and many still carry their original single-pane aluminum windows, now 65 to 75 years old and corroded by decades of salt-laden air off San Francisco Bay. Full-frame replacement is the norm, not the exception. TruePane Windows & Doors has done this work across San Lorenzo long enough to know the tract floor plans, the clay-soil racking, and the moisture patterns that make every opening slightly different. Call (888) 635-0804 for a free estimate, and a live person will answer.
Why TruePane Windows & Doors Is San Lorenzo’s Preferred Custom Windows & Doors Company
San Lorenzo homeowners tend to keep their houses for decades. They remember the contractor who fogged a seal and then disappeared. That history makes them careful about who they let through the door, and it is why our approach here has always been straightforward: background-checked, uniformed technicians who measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves the driveway.
We are led by Dale Kessler, a second-generation glazier who founded TruePane in 2008 on a rule that still governs every install: if the pane is not true, the job is not done. His crews have worked on repeated floor plans across the 94580 zip code long enough to anticipate what is behind the trim before it comes off. That local familiarity changes how the work goes. A homeowner on Bockman Road gets the same careful approach as one on Via Alamitos, because we know both streets are built on the same expansive clay and the same postwar framing.
Every San Lorenzo job carries the Done Right Promise and The Keystone Standard: both manufacturer warranty layers registered in writing, durations stated, no paperwork fights. If something is not right, we fix it. We stand behind it. That is the standard on the first visit and the baseline for every callback.
Our Custom Windows & Doors Services in San Lorenzo
TruePane installs, replaces, and services custom and semi-custom windows and doors across San Lorenzo. The five sub-services below are the ones that matter most in this housing stock. Each job starts with a free site visit, a written line-item quote, and no change orders once work begins.
Custom Shape Windows
San Lorenzo’s minimal-traditional and ranch homes were built with simple rectangular openings, but decades of additions, enclosed porches, and remodels have introduced arched, trapezoid, and radius openings that stock units cannot fill. We fabricate and install fully custom shape windows sized to the actual rough opening, not the nearest catalog dimension. In San Lorenzo, where clay-soil movement has shifted even the original rectangles out of square, every custom shape window is measured and set with the same re-squared jamb discipline we use on standard units.
Commercial Storefront Glazing
San Lorenzo’s commercial strips along Hesperian Boulevard and Lewelling Boulevard include storefronts with aging aluminum frames and fogged insulated glass units. We handle commercial storefront glazing for retail and office spaces, replacing failed glass and regasketing frames without interrupting business more than necessary. Salt air here corrodes storefront hardware faster than inland East Bay locations, so we specify stainless or anodized finishes where the original builders used plain mill aluminum.
Curtain Wall Systems
Curtain wall work in San Lorenzo is less common than in downtown Oakland, but when a commercial building or a large custom addition calls for a non-load-bearing glass wall, we scope it carefully. Curtain wall systems depend on precise anchoring, and in this flatland clay, anchor points need proper embedment and load transfer. We pull permits, coordinate engineering, and install the system so it stays true through wet winters and dry summers.
Architectural Grilles & SDLs
Many San Lorenzo homeowners want the look of divided-light windows without sacrificing modern glass performance. Architectural grilles and simulated divided lites, or SDLs, give a 1950s ranch exterior its original character while the insulated glass unit behind the grille handles the condensation and heat gain that original single-pane windows never could. We match existing muntin profiles so replacement windows on the front elevation do not look like add-ons. This matters on streets like Paseo Grande, where the postwar architectural vocabulary is remarkably consistent block to block.
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 San Lorenzo
We are an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, and ES Windows. For San Lorenzo’s coastal-influenced climate, we often quote PGT and CGI impact-rated lines for homeowners who want windborne debris protection along with corrosion-resistant frames. Ply Gem is another line we install regularly where budget is a concern but quality cannot drop. We stock common parts and hardware for these brands in our Bay Area warehouse, so replacement components reach San Lorenzo jobs quickly without a second appointment left hanging.
Common Custom Windows & Doors Problems We See in San Lorenzo Homes
- Corroded original aluminum frames and failed seals. Marine air off San Francisco Bay carries salt that pits and corrodes uncoated aluminum window frames, screen tracks, and locksets. Seal failure follows, and fogged glass is common in original 1950s units within 10 to 15 years of first installation.
- Racked rough openings from clay-soil movement. San Lorenzo sits on expansive clay that swells in wet winters and shrinks in dry summers. Post-and-pier and slab foundations move subtly but permanently, and over 60-plus years, window and door rough openings drift out of square by a quarter to a half inch. Even stock-sized replacements need custom shimming and re-squaring or the sash binds and air leaks.
- Wood rot at exterior door thresholds and sill plates. San Lorenzo Creek runs through the neighborhood and keeps ground moisture higher than in Hayward or San Leandro. Combined with marine humidity, that moisture rots exterior door thresholds and the sill plates beneath them, which causes doors to sag, latch to misalign, and sill pans to fail.
- Condensation on single-pane glass near the creek. Homes within a few blocks of San Lorenzo Creek see heavier morning dew and interior condensation on single-pane aluminum windows. The glass surface runs cold, moisture collects, and over years the runoff damages interior sills and plaster. Full-frame replacement with insulated glazing is the permanent fix.
Pricing for Custom Windows & Doors in San Lorenzo, CA
Custom shape windows in San Lorenzo generally run $900 to $2,800 per opening depending on glass size, frame material, and how far out of square the rough opening has drifted. Architectural grilles and SDLs add $150 to $400 per window. Oversized glass panels, including large fixed picture windows and sliding patio doors, typically range from $2,500 to $7,500 installed, with structural reinforcement requirements pulling the higher end. Commercial storefront reglazing usually runs $45 to $95 per square foot. A full-frame replacement on a 1,000 to 1,400 square foot San Lorenzo ranch with six to nine windows commonly lands between $12,000 and $28,000, though every job is quoted line by line after a site visit. Call (888) 635-0804 and we will come to your home, measure the openings, and hand you a written quote with both warranty layers stated in writing. The estimate is free.
Permanent discounts matter here. We offer a free written repair estimate, a maintenance check, and a standing 5% discount for seniors and veterans. Mention any of these when you call.
We Also Serve Cities Near San Lorenzo
Our crews regularly work in Custom Windows & Doors in San Lorenzo and the surrounding East Bay. If you’re in Castro Valley, San Leandro, Union City, or Oakland, the same team and the same Done Right Promise apply. Call (888) 635-0804 and a live person answers, day or night.
Serving San Lorenzo, CA - Our Local Coverage Area
We’re based in the San Lorenzo 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 San Lorenzo
San Lorenzo homes were built almost entirely between 1945 and 1960 as tract housing, and most still carry original single-pane aluminum windows that are now 65 to 75 years old with corroded frames and failed seals. Insert windows leave that corroded frame in place, which means the new unit inherits the old frame’s air leaks and racked geometry. Full-frame replacement removes everything down to the rough opening, lets our crew re-square the jamb with fresh shims, and gives the new window a clean thermal break. It costs more upfront, but in this housing stock it is the correct repair. Call (888) 635-0804 to have us look at your openings and tell you honestly which route fits your home.
The expansive clay under San Lorenzo swells in wet winters and shrinks in dry summers, and over six or seven decades that movement racks rough openings out of square by a quarter to a half inch. A stock-size window set into an out-of-square opening without custom shimming will bind, leak air, and stress the glass. We re-square every opening before setting the frame, and we bed the frame in shims sized to the actual gap, not the nominal one. This is why our San Lorenzo installs take a little longer than a novice quote would suggest, and why the results hold up. For an exact assessment of your frames, call (888) 635-0804 and schedule a free measurement visit.
Single-pane aluminum windows run cold on winter mornings, and when warm interior air hits that cold surface, condensation forms. Homes near San Lorenzo Creek get heavier morning humidity than the rest of the neighborhood, so the condensation is worse and the runoff rots sills and plaster over time. The durable fix is full-frame replacement with insulated glazing, which keeps the interior glass surface warmer and reduces condensation sharply. If your sills show water staining, call (888) 635-0804 and we will inspect the openings and quote the right fix.
San Lorenzo tract homes were built from a small set of repeated developer templates, so a handful of standard rough-opening dimensions repeat block after block. That means our crews know the typical opening sizes before they arrive. But the clay-soil foundation movement since the 1950s means nearly every opening has shifted enough that each unit still requires custom shimming and re-squaring before the new frame can be set. Standard sizing shortens lead time; it does not remove the craft. For a quote on your specific openings, call (888) 635-0804. The estimate is free.
The most common door failure we see in original San Lorenzo ranch homes is wood rot at the exterior door threshold and sill plate, driven by marine humidity and elevated moisture near San Lorenzo Creek. The rot lets the door frame settle, the sash sags, the latch stops catching, and the door binds against the jamb in summer. We replace rotted sill plates with pressure-treated lumber, re-level the threshold, and re-hang the door so it latches with one finger. Second-most common is a sliding patio door with corroded roller hardware and a worn track. Call (888) 635-0804 and we will inspect the door and tell you what actually needs replacing, not just what is convenient to sell.
Call TruePane for Custom Windows & Doors in San Lorenzo
If your San Lorenzo home still has its original single-pane windows, or if a door has started to bind and sag, we can help you understand what is happening and what a correct repair costs. We have been doing this work in the East Bay long enough to know the houses and the soil and the salt air. We measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves your driveway. If the pane is not true, the job is not done. Call (888) 635-0804 today and speak with a live person. The estimate is free, and we will be there when we say.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Lorenzo and the East Bay since 2008 through a heritage of craft and community commitment.