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 Marino, CA
San Marino is not a place where you swap out a window on a whim. The city’s review board will want to see that the replacement matches the original grid pattern before a permit is even issued. That is precisely the kind of work we do. TruePane Windows & Doors serves the 91108 zip code, and when you call home office dispatch at (888) 635-0804, a live person answers any time, day or night, not a menu. We know the drill here because our crews work on these estate homes regularly, and we carry the product lines and the paperwork discipline this city demands.
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 Marino Homeowners Choose TruePane Windows & Doors
Homeowners in the Mission District and the estates off Lombardy Road tend to do their homework. They have lived in the same house for twenty-five or thirty years, and they remember the contractor who left them with a fogged seal and a door that binds every July. When they call us, they get a background-checked, uniformed technician who measures the opening twice, quotes manufacturer lines side by side on paper, and writes down the warranty terms so there is no guessing later. That habit comes from our founder, second-generation glazier Dale Kessler, who started TruePane in 2008 with one rule on the whiteboard: if the pane is not true, the job is not done.
San Marino residents near The Huntington and along Saint Albans Road have told us the same thing: they are not after the cheapest bid. They are after the last bid. Our standing as an authorized installer for more than a dozen manufacturer lines, including, PGT, and CGI, means we can show a homeowner two or three legitimate options in writing and let the house dictate the choice. We pull permits. We handle the Architectural Design Review paperwork. And we register both manufacturer warranty layers before the truck leaves the driveway. That is The Keystone Standard, and it is on every job in San Marino.
Every install carries our Done Right Promise. If something is off, we fix it, no fine print and no arguing. The company sponsors county fairs and church roof funds because it plans to be in this community thirty years from now, still answering the phone.
Windows & Doors Services We Offer in San Marino
Window Installation
New window installation in San Marino often means matching a 1930s Spanish Colonial’s original steel casement sightlines or replicating divided-lite wood sash on a Tudor. We can walk you through both historically accurate units and premium modern lines, with the paperwork the city requires. Learn more about window installation in San Marino.

Door Installation
A heavy paneled entry door with period hardware is not something you find at a big-box store. We install solid wood, steel, and glass doors that respect the architecture, fit the existing frame properly, and close square the first day. Learn more about door installation in San Marino.

Window Replacement
When originals have failed from UV damage or old age, replacement means more than pulling a stock unit off a shelf. San Marino’s Design Review Board expects the replacement to replicate the original profile and grid pattern, and we handle that submittal process as part of the job. Learn more about window replacement in San Marino.

Impact Windows & Doors
Santa Ana wind events punish hardware, thresholds, and weatherstripping. Impact-rated units from manufacturers like PGT and CGI give these older homes storm-rated protection without looking like a fortress bolted onto the facade.

Energy-Efficient Windows
Intense inland sun degrades both the glazing seal and the finish on wood frames. We install energy-efficient windows with low-E coatings and proper warm-edge spacers suited to San Marino’s UV exposure, so the next replacement is decades away.

Sliding & Patio Doors
An estate-scale home often deserves a heavy-duty sliding or patio door with premium rollers and a low threshold. We install units from Ply Gem and other lines that track cleanly and seal tight, even after a hot summer swells the framing.

Glass Railing Systems
For decks, balconies, and pool areas, frameless and semi-frameless glass railing systems keep sightlines open. We install these to code, with stainless hardware and tempered glass, so the structure is as sound as it is clean-looking.

Custom Windows & Doors
Some San Marino homes have openings that were never standard. Custom windows and doors, built to the measured opening and to the original muntin profile, are our bread and butter here. We take the measurements, order the unit, and install it so the house does not know anything changed.

Neighborhoods We Serve in San Marino
We work throughout the 91108 zip code and know the block-by-block differences in the housing stock. Our crews regularly are on site in these areas:
- Mission District
- The estates near The Huntington
- The area along Saint Albans Road
- Lombardy Road corridor
Most concerns are reached from our metro office within the same day when the situation is urgent. For everything else, we schedule a measured, unhurried visit. We will be there when we say.
Why San Marino’s Climate & Housing Affect Windows & Doors
San Marino sits inland in the San Gabriel Valley, which means the sun works harder and longer than it does at the coast. The original steel casement windows and multi-light wood sash on homes built between roughly 1920 and 1960 were built before low-E glass existed, and over fifty or sixty years, the intense UV exposure degrades glazing seals and wood finishes until the units fail. We see it constantly: a beautiful 1930s Spanish Colonial with windows that rattle in the Santa Ana winds because the hardware is tired and the weatherstripping has dried out.
Those same Santa Ana events put sustained stress on door hardware, thresholds, and hinges. A door that binds in July may have been hung slightly out of plane, and only a proper install with correct torque on the hinges and a true top rail fixes it. None of this is a quick commodity swap. San Marino’s housing stock demands a trade-level understanding of older construction, and that is the entire reason TruePane exists. The city’s Architectural Design Review process just makes it official: if the pane is not true, the job is not done.
Pricing for Windows & Doors in San Marino
Every home here is different enough that a flat price would be dishonest. TruePane gives a written, line-item quote before any work starts, so the number on the proposal is the number on the bill. As a general guide for this city, taking into account the Architectural Design Review paperwork and the historically matched units the housing stock requires:
- Single historically matched wood or aluminum-clad wood replacement window: typically $1,400-$3,200 installed, depending on size and grid complexity.
- Steel casement replication with divided lites: commonly $2,000-$4,500 per opening, given the specialized material and submittal work.
- Full custom entry door with period hardware and finish: $3,500-$8,000 installed, depending on the species and hardware.
- Sliding patio door, impact-rated: $2,800-$6,500 installed, depending on width and manufacturer.
We offer a permanent 5% discount for seniors and veterans, and a maintenance check for hardware, weatherstripping, and alignment. Call (888) 635-0804 for a free estimate.
Service Area - Cities Near San Marino
We work across the San Gabriel Valley. That includes window and door projects in San Gabriel, Alhambra, Pasadena, and South Pasadena, where the same craftsman-level detail applies to homes of the same era.
Serving San Marino, CA - Our Local Coverage Area
We’re based in the San Marino 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 Marino
Yes. San Marino’s Architectural Design Review Board reviews window and door changes, and the city expects material samples and elevation drawings proving the replacement matches the original profile and grid pattern before a permit is issued. Standard vinyl replacements on a 1930s Spanish Colonial are routinely rejected. TruePane handles the submittal and paperwork as part of the job, and we bring the samples the board needs.
Call (888) 635-0804 if you want to know whether your opening will require review, and we can tell you what to expect.
Window replacement in San Marino typically runs $1,400 to $4,500 per opening, depending on material, size, and whether the city requires historically matched fabrication. The specialty units this housing stock demands are not off-the-shelf, and the design review process adds lead time. Our line-item written quote is the exact number, not an estimate you have to revise later.
For an exact quote on your house, call (888) 635-0804. Estimates are free.
No. TruePane quotes upfront with written line items, and we do not do change orders unless you ask for additional work after the scope is set. The price on the proposal is the price on the bill, period. If we find something in the wall once the old window is out, we stop and talk to you first, same day, in person. We will be there when we say, and we stand behind the number.
We do. The city’s Architectural Design Review process requires permits for most exterior window and door changes, and a botched submittal means weeks of delay. We prepare the material samples and elevation drawings the board expects, file the permit, and schedule the inspection. You do not run paperwork. That is part of the job, not an add-on.
Call (888) 635-0804 with your address and we can tell you how the process will go for your specific house.
For most individual windows, the install itself is done in one visit. The lead-up is longer in San Marino than in neighboring cities because of the design review submittal and any custom fabrication for historically matched units. A simple replacement with already-approved profiles might be two to three weeks from measure to install. A custom steel casement replication can add six to eight weeks for fabrication. Every job is quoted with a written schedule, and we hit it.
Call (888) 635-0804 to talk through the timeline for your house.
Call TruePane Windows & Doors in San Marino
When you are ready for a window or door that matches the house instead of fighting it, call (888) 635-0804. A live person answers, any hour, any day. We will schedule a free estimate, measure every opening twice, quote side-by-side manufacturer options on paper, and handle the city paperwork. The job is done right or we make it right. That is the standard in San Marino.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Marino with years of craft tradition behind every install.
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 Marino Customers Say
"Whole-house window replacement at 71 years old is not something you want to do twice. Dale walked the house himself for the quote. Crew was the same three men all four days, and the foreman knew every window by room."
- Pat and Ray L."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.



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