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 San Marino
Custom window and door work in San Marino runs on a different clock than most of Los Angeles County. The short version: a true custom replacement or restoration on a 1920s or 1930s estate home here typically runs $1,800 to $6,500 per opening installed, and the city’s Architectural Design Review Board adds 4 to 8 weeks to the permit timeline before a single pane is ordered. Our team knows that drill cold, because we work in San Marino week in and week out, from Lacy Park to the estates off Granada Avenue. Call (888) 635-0804 and you’ll get a live person, not a voicemail tree.
Why TruePane Windows & Doors Is San Marino’s Preferred Custom Windows & Doors Company
We’ve spent years walking into homes where the original windows were set by craftsmen who died before most of us were born. San Marino’s housing stock demands that kind of memory. You don’t put a stock vinyl sash into a 1930s Monterey Revival on St. Albans Road and call it done. Our crews measure every opening twice, photograph the sightlines and muntin profiles, and quote manufacturer lines side by side on paper, so you see exactly what you’re buying before the Design Review Board ever sees your submittal.
Dale Kessler founded this company because he kept getting called to fix installs where the pane was out of true and the warranty was already void. The rule he keeps on the whiteboard is the one we work by: if the pane is not true, the job is not done. Every tech who rolls into San Marino is background-checked, uniformed, and trained to work in your home the way they’d work in their own mother’s. Dispatch and scheduling are coordinated from our Los Angeles office, but the crews serving San Marino live and work in this market. When a Santa Ana wind event hits in October and your French door threshold starts binding, we want to be the company you already have on speed dial.
Our Custom Windows & Doors Services in San Marino
San Marino’s Design Review Board doesn’t accept generic. Neither do we. Here’s what we handle most often in 91108.
Architectural Grilles & SDLs
Simulated divided lites are the difference between a submittal that passes and one that gets sent back for redraw. The board wants true divided lite, or an SDL with a matching interior and exterior profile, and they’ll ask to see a sample before issuing the permit. We match the original muntin width and shadow line on 1920s and 1930s sash, then build the grille to the board’s standard, not the manufacturer’s default. This is the single most common custom request we quote in San Marino.
Custom Shape Windows
Arched transoms, eyebrow windows, portholes, and segmental heads show up throughout San Marino’s Spanish Colonial and Tudor inventory. A stock circle-top from the lumberyard won’t match the radius on an original 1929 steel casement. We template each opening, order to the exact curve, and set the unit so the reveal matches the originals on either side. On a recent estate off Lorain Road, we matched three different arch radii across one rear elevation.
Oversized Glass Panels
Estate-scale rooms on this side of town call for glass you don’t carry down a hallway on your shoulder. Our crews handle oversized panels up to the manufacturer’s structural limits, with the right lift equipment and a second man on the frame every time. Climate matters here: San Marino’s inland UV exposure cooks sealants faster than it does in Pasadena, so we spec edge seals and bed glazing rated for sustained heat, not coastal fog.
Commercial Storefront Glazing
San Marino’s commercial district is small but exacting, and the same Design Review standards apply to storefront work on Huntington Drive. We’ve handled glass replacement and full storefront rebuilds for local businesses that can’t afford a boarded-up entrance. Curtain wall systems are part of that work too, though residential curtain walls on modern additions make up a growing share of our San Marino calls.
Trusted Brands We Service in San Marino
We’re an authorized installer for more than a dozen manufacturer lines, including PGT, CGI, and ES Windows. That matters when you’re trying to keep a warranty intact. We register both warranty layers in writing before the truck leaves your driveway, durations stated, no fine print that covers neither. For San Marino customers, we keep the most common hardware and seal components for PGT and ES Windows stocked locally, which means a warranty repair doesn’t wait two weeks on a freight shipment from the East Coast.
Common Custom Windows & Doors Problems We See in San Marino Homes
- Failed seals from inland UV exposure. San Marino sits in the San Gabriel Valley, not the coastal strip. The sun here is harder on glazing seals and wood finishes than it is ten miles west. Fogged IGUs between glass layers show up years earlier on the south and west elevations of San Marino homes than they do in coastal Los Angeles.
- Rotted jamb pockets behind original steel casements. We opened a wall on a 1930s Spanish Colonial on Lombardy Road and found the original jamb rotted through where flashing tape was never applied, plus cloth-wrapped wiring running through the rough opening. That’s not rare here. It’s standard. We wrote the rot repair and wiring relocation into a change order, got written approval from the homeowner, then rebuilt the opening and installed a divided-lite, historically matched casement with low-E glass and argon fill before the inspector returned.
- Gaps at the meeting rail after a stock swap. A previous installer puts a stock aluminum sash into a rough opening sized for a thicker steel jamb. The undersized header sags, and by the first Santa Ana wind season there’s a quarter-inch gap at the meeting rail and a whistle you can hear from the living room. Matching the original jamb depth and header load is not optional on these homes.
- Termite-damaged sills hidden behind stucco. San Marino’s older stucco and wood-frame construction hides sill damage that doesn’t show until the old window comes out. If the scope changes, we price the repair in writing and get your sign-off before we cut anything further. No surprises on the final bill.
Pricing for Custom Windows & Doors in San Marino, CA
A commodity double-hung in San Marino runs $800 to $1,400 per opening installed. But that’s not the job most of these homes need. Custom divided-lite wood or aluminum-clad units typically land between $2,200 and $5,400 per opening. A full custom arch or oversized panel can push past $6,500, and a commercial storefront package on Huntington Drive starts around $8,000. The Design Review Board’s submittal requirements are part of that cost: material samples, elevation drawings, and profile documentation take time to assemble, and we include that work in the written quote, not as a surprise line item. Call (888) 635-0804 for a free, line-item estimate. We price it once, on paper, and we don’t change the number after the walls are open unless you approve it in writing first.
We Also Serve Cities Near San Marino
We schedule work in San Marino every week, and our crews also cover San Gabriel, Alhambra, Pasadena, and South Pasadena. If you’re just outside the 91108 boundary, call (888) 635-0804 and we’ll tell you straight whether we can get a crew to you this month.
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 - Custom Windows & Doors in San Marino
Yes. Standard vinyl double-hung windows are routinely flagged on permit applications for pre-1940 homes in San Marino. The board requires material samples and elevation drawings that prove the replacement replicates the original profile, grid pattern, and sightlines. Vinyl units almost never match the original muntin widths or jamb depths on a 1920s Tudor. We recommend historically matched wood, steel-look aluminum-clad, or premium aluminum-clad wood units and we prepare the submittal package for you. Call (888) 635-0804 if you’re not sure whether your submittal will pass.
Plan on 4 to 8 weeks from submittal to issued permit, beyond what a neighboring city like San Gabriel or Pasadena would require for a standard replacement. The Design Review Board meets on a fixed schedule, and your application has to be complete the first time or it cycles again. We build that lead time into the project schedule from the first conversation, not after you’ve already pulled the old windows.
We stop, document the rot with photos, price the repair as a written change order, and get your signature before we touch the framing. The rot repair, new jamb construction, and any wiring relocation are priced separately from the window itself. On the Lombardy Road job, that meant rebuilding the rough opening and moving cloth-wrapped wiring before the new casement went in, and the inspector signed off on the first pass.
In most cases, yes. Premium aluminum-clad wood and thermally broken steel-look units from manufacturers like ES Windows get within a sixteenth of an inch on the sightline width of an original 1940s steel section. We bring samples and profile drawings to the site so you can compare against your originals before ordering. Full custom steel replication is available for purists, but the lead time and cost jump noticeably.
Yes. The board cares about the exterior appearance, grid pattern, and sightlines. They don’t block the glass package. Low-E coatings and impact-rated laminated glass can be specified inside a historically matched divided-lite frame without changing the submittal’s visible profile. We quote impact lines from PGT and CGI side by side with non-impact options so you can decide with the numbers on paper. Call (888) 635-0804 for an exact quote, estimates are free.
Key Takeaways
- San Marino’s Design Review Board requires material samples and elevation drawings before issuing a window replacement permit.
- Plan for 4 to 8 weeks of permit lead time beyond what neighboring cities require.
- Custom divided-lite and historically matched units run $2,200 to $5,400 per opening in San Marino.
- Rotted framing, hidden wiring, and termite damage behind original windows are common on these 1920s-1950s homes.
- The Keystone Standard: both warranty layers registered in writing before our truck leaves your driveway.
- Seniors and veterans get a permanent 5% discount, and we offer a free written repair estimate.
If you’ve got an original steel casement that fogs between the panes or a French door that binds every time the Santa Anas blow through, call (888) 635-0804. A live person answers, day or night. We’ll schedule a free estimate, put the numbers on paper, and tell you straight what your San Marino home actually needs, whether that’s a single sash replacement or a full elevation of custom windows and doors done right the first time.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving San Marino with custom window and door craftsmanship since 2008.



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