Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Windows & Doors Services in San Lorenzo, CA
If your San Lorenzo home still has its original single-pane aluminum windows, you’re not alone. Most of this community was built between 1945 and 1960, and a remarkable share of those first-generation windows are still in place, now six or seven decades old and fighting a losing battle against Bay air and clay soil. We work on those houses every week. We know the floor plans, the rough-opening sizes that repeat block after block, and the way the frames have shifted since the 1950s. Call (888) 635-0804 and a live person answers, day or night.
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.
Why San Lorenzo Homeowners Choose TruePane Windows & Doors
San Lorenzo has a housing stock that is unusually predictable and unusually demanding at the same time. Homes in the Village neighborhood and along Bockman Road were mostly built in the same postwar window, from the same developer templates, and homeowners here have learned that the cheap bid usually means a crew that doesn’t understand what 70 years of Alameda County clay does to a window opening. Dale Kessler founded this company in 2008 on a rule that still governs every install: if the pane is not true, the job is not done. That’s the Keystone Standard, and it means both manufacturer warranty layers are registered in writing, with durations stated, before our truck leaves your driveway.
The Done Right Promise backs every job in San Lorenzo. If it’s not done right, we make it right. No paperwork fights, no fine print that covers neither. Homeowners in the Del Rey and Cherryland-adjacent areas have called us after previous contractors left them with fogged seals and doors that bind in July. We measure every opening twice. We quote manufacturer lines side by side on paper so you see exactly what you’re buying. And a live person answers the phone 24 hours a day, seven days a week, not a voicemail tree.
Windows & Doors Services We Offer in San Lorenzo
Window Installation
We install every major window style in San Lorenzo homes, from double-hung to casement to picture windows. Our crews are background-checked and uniformed, and they re-square every opening before setting the new frame, because in this town almost nothing is plumb anymore. Learn more about our Window Installation in San Lorenzo.

Door Installation
Entry doors, interior doors, and replacement doors all get the same treatment: measured twice, set square, and sealed against the marine air that works its way through San Lorenzo thresholds. We carry fiberglass, steel, and solid wood options and quote them side by side on paper. Learn more about our Door Installation in San Lorenzo.

Window Replacement
Most San Lorenzo window replacement jobs are full-frame replacements, not pocket inserts. The original aluminum frames from the 1950s are too corroded to reuse, and the rough openings have shifted enough that a retro-fit unit rarely sits true. Learn more about our Window Replacement in San Lorenzo.

Impact Windows & Doors
Impact Windows & Doors in San Lorenzo add a layer of structural security that older homes here simply were never built with. We install impact products from manufacturers including PGT and CGI, and we register every warranty layer in writing before we leave.

Energy-Efficient Windows
Replacing single-pane aluminum with low-E, argon-filled glass changes the way a San Lorenzo house feels in both August and January. We carry Energy-Efficient Windows in San Lorenzo from Andersen, Marvin, and Milgard, among others, and we quote them side by side so you can compare glass packages honestly.

Sliding & Patio Doors
Sliding glass doors in San Lorenzo take a beating from salt air and settling foundations. We install, replace, and service Sliding & Patio Doors in San Lorenzo, and we correct the out-of-square openings that make old ones stick and leak.

Glass Railing Systems
Glass Railing Systems in San Lorenzo work well on ranch homes, especially on patios and pool areas. We install tempered and laminated glass panels that meet current code and are set with the same precision as every other job we do.

Custom Windows & Doors
Nonstandard openings, odd sizes, and architectural quirks are common in older San Lorenzo tract homes where nothing is exactly square. We build and install fully custom windows and doors to match your home’s character and dimensions, not the other way around.

Neighborhoods We Serve in San Lorenzo
We work throughout San Lorenzo. Our technicians know the streets, the floor plans, and the soil conditions in each area. Typical response time for a San Lorenzo estimate is within one to two business days.
- San Lorenzo Village
- Del Rey
- Bockman Road area
- Cherryland-adjacent neighborhoods
- Hesperian Boulevard corridor
Why San Lorenzo’s Climate & Housing Affect Windows & Doors
San Lorenzo sits on the Alameda County flatlands close enough to San Francisco Bay that it gets consistent marine-layer humidity and salt-laden air. That air corrodes aluminum window frames, screen hardware, and door locksets faster than what you’d see in inland East Bay cities. San Lorenzo Creek adds a second moisture source that drives condensation on single-pane glass and accelerates wood rot at exterior door thresholds and sill plates. When you combine that moisture with the expansive clay soils under San Lorenzo’s post-and-pier and slab foundations, you get frames that have shifted out of square over decades. This is why we treat every opening as a custom fit, even when the replacement window is a stock size. Because San Lorenzo tract homes were built from the same few developer templates, a handful of standard rough-opening dimensions repeat block after block, but the foundation movement since the 1950s means nearly every one of them needs custom shimming and re-squaring before the new frame can be set. A crew that ignores this will set the window wrong and walk away. We don’t do that.
Pricing for Windows & Doors in San Lorenzo
Honest numbers, in writing. In San Lorenzo, full-frame window replacement typically runs $800 to $1,600 per window depending on size, material, and glass package. A standard entry door replacement runs $1,500 to $3,500 installed, sliding patio doors $2,500 to $5,500. These are actual ranges for this market, not national averages. We give you a line-item quote on paper before work begins, and there are no surprise line items on the bill when it’s done. We’re not the cheapest bid in the room. We are the last call a homeowner needs to make. Call (888) 635-0804 for a free estimate, and ask about the maintenance check or the Free Written Repair Estimates. Seniors and veterans get a permanent 5% discount.
Service Area - Cities Near San Lorenzo
TruePane serves San Lorenzo and surrounding East Bay communities. If you’re in Castro Valley, San Leandro, Union City, or Oakland, our crews cover those areas too, with the same Keystone Standard on every job.
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 About Windows & Doors in San Lorenzo
Full-frame window replacement in San Lorenzo typically costs $800 to $1,600 per window depending on size, material, and glass package. Call (888) 635-0804 for an exact quote, estimates are free.
No, not on our jobs. We give you a fixed line-item quote on paper before work begins, and there are no change orders or surprise line items on the bill. If we find hidden damage during the job, we show it to you and agree on any additional work before touching it.
Yes, when permits are required for the scope of work, we pull them and we pass the inspections. That’s part of the Keystone Standard. No homeowner is left to sort out Alameda County paperwork on their own.
Most window replacements and door installations in San Lorenzo are completed in a single visit, sometimes two for larger projects. Full house replacements typically take two to five days depending on the number of openings.
That fog is a failed seal, and it’s common in San Lorenzo homes where original or first-generation windows have been exposed to decades of Bay humidity and temperature swings. Once the seal fails, the insulating gas is gone and the glass can’t be repaired, only replaced. Call (888) 635-0804 and we’ll give you an honest assessment, not a sales pitch.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Lorenzo and the East Bay since 2008.
Call (888) 635-0804 today to schedule your free estimate. A live person answers, 24 hours a day, seven days a week. We’ll be there when we say.
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 San Lorenzo Customers Say
"Eleven windows replaced in two days. The crew chief, Marcus, showed me the level on every single frame before they caulked it. My wife noticed the street noise was gone before I did."
- Ronald P."A casement crank had stripped and the sash was swollen shut. The technician, Ray, fixed the crank on the spot and only then talked about replacement for the three windows that were genuinely done. That is why the whole street uses them now."
- Eleanor G."French doors to the patio, custom size because this house was built in 1961 and nothing is standard. Measured twice, three weeks to fabricate like they warned, and the install day they laid runners over my floors without being asked."
- Marie S.



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