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Window Company in San Marino, CA
Window and door work in San Marino is different from almost anywhere else in the San Gabriel Valley. Most homes here are architect-designed Period Revival estates from the 1920s through 1940s, and the city’s Architectural Design Review process means a standard vinyl replacement window rarely gets approved. That shapes every job we do, from the first measurement to the final inspection. If you’re researching window or door work in San Marino and want straight answers before you call, you’re in the right place. Reach us at (903) 354-7134.
Why San Marino Homes Are Different
San Marino’s housing stock skews heavily toward custom Period Revival residences: Spanish Colonial, Mediterranean, Tudor, and Colonial Revival homes built between the 1920s and 1940s. Many still have their original Crittal-style steel casement windows, true divided-light wood double-hungs, and solid-wood entry doors with period hardware. These are not houses where a stock replacement unit from a catalog will slip into the opening. The city’s Architectural Design Review Committee requires replacement plans showing profile dimensions, lite patterns, and hardware finishes that match the home’s original character. Show up with a standard vinyl window and you’ll get a denial letter.
Climate adds another layer. San Marino sits at the base of the San Gabriel Mountains, so summer temperatures regularly top 100°F and the UV is intense. That heat degrades linseed-oil glazing putty on original steel casements and bleaches unprotected wood sashes far faster than in coastal microclimates. Santa Ana wind events push sudden positive pressure against older single-pane frames, fatiguing aged hardware and blowing out failed seals. A replacement that looks right on paper but can’t handle San Marino’s heat and wind won’t last.
Our Main San Marino Services
San Marino homeowners most often call us about two things: replacing windows that have failed or no longer meet design-review standards, and replacing doors that have warped, rotted, or lost their period hardware. Each service has its own San Marino page below.
Window Replacement in San Marino
Replacing windows here means matching the home’s original profile, lite pattern, and finish closely enough to pass design review. We work with clad-wood, aluminum, and restored steel options from manufacturers including PGT and CGI, and we handle the pre-submission consultation so the plan submitted to the Architectural Design Review Committee has a real chance of approval the first time. More detail on materials, process, and San Marino pricing is on the full page: Window Replacement in San Marino.

Window Installation in San Marino
Installation on a 1930s Period Revival home is not the same as installation on a 1990s tract house. Original openings are rarely perfectly square, and the weight-and-pulley or steel casement hardware often means custom shimming, re-flashing, and interior trim work. Our crews are background-checked and uniformed, and every install follows the Kingswell Way: the written price comes first, the arrival window is concrete, and the job site is cleaner when we leave than when we arrived. See Window Installation in San Marino for specifics.

Door Installation in San Marino
Entry doors on San Marino’s older estates are often ornate solid-wood pieces with original hardware worth preserving. When replacement is the better call, we match the door’s period profile and hardware finish to the home’s architectural style, and we install Therma-Tru and ViewLux entry systems where they fit the design-review requirements. If a repair or installation fails within the guarantee period, we return and correct it at no charge. Full detail: Door Installation in San Marino.

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.
Brands We Service in San Marino
We carry and service product from PGT, CGI, and ViewLux, along with five other manufacturer lines. Parts for common repairs, including glazing, weatherstripping, and hardware, are stocked for quick turnaround. For a full list of what we install, see our brands.
Pricing for Window Company in San Marino, CA
| Service | Typical range in San Marino |
|---|---|
| Single window replacement (standard size, clad-wood or aluminum) | $900 - $2,400 installed |
| Custom steel casement window replacement (design-review approved) | $2,200 - $5,500 per window |
| Full-home window replacement (5-10 windows, Period Revival) | $14,000 - $38,000 |
| Entry door replacement (solid wood, period hardware) | $2,800 - $7,500 |
| French or patio door replacement (wood or clad) | $3,500 - $9,000 |
| Window installation (labor only, new construction opening) | $400 - $1,100 per window |
| Door installation (labor only, pre-hung unit) | $600 - $1,800 per door |
| Hardware replacement or restoration (original period hardware) | $200 - $900 per door or window |
What pushes price up in San Marino is design review compliance: custom profiles, true divided lites, and period hardware finishes all add cost compared to a standard replacement in Alhambra or Temple City. Every project starts with a written price before any work begins, and that written number does not change at the door. We put it in writing, and the Kingswell Guarantee backs it.
Neighborhoods We Serve in San Marino
We work across San Marino, from the estates along Lombardy Road and Virginia Road to homes near Lacy Park, Valentine Drive, and the Mission District. Response for estimates anywhere in San Marino is typically within one business day, with scheduling coordinated from our Los Angeles office and crews serving San Marino locally.
- Lombardy Road area
- Virginia Road area
- Lacy Park
- Valentine Drive
- Mission District
Service Area – Cities Near San Marino
While this page focuses on San Marino, our crews also cover nearby cities including San Gabriel, CA, Alhambra, CA, Pasadena, CA, and South Pasadena, CA. If you’re just outside San Marino and wondering whether we serve your street, call us at (903) 354-7134 and a live person will answer.
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 Window Company in San Marino
Design review for window and door replacements in San Marino typically takes two to six weeks, depending on the committee’s calendar and the complexity of the home. Submitting plans with correct profile dimensions, lite patterns, and hardware finishes the first time is the single biggest factor in avoiding delays. Call (903) 354-7134 and we’ll walk through what your specific home needs before anything is submitted.
Yes. We prepare and submit the window and door replacement plans required by San Marino’s Architectural Design Review Committee, and we coordinate with the city through the approval process. The written price you receive before work starts includes the permit-related work we perform. Call (903) 354-7134 for an exact quote, and estimates are free.
No. Every project begins with a written price delivered before any work starts. That price stands unless you ask us to expand the scope of the job, and even then you’ll approve any change in writing before we proceed. That’s the Kingswell Guarantee, and it applies to every job in San Marino. Call (903) 354-7134 to schedule a free estimate.
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
"Our energy bill in summer was brutal. New windows made a real dent in it. Salesman wasn't pushy and didn't do the fake "today only" discount thing the others tried."
- Bethany Oh"Two bedroom windows that never opened and one that wouldn't stay up. All replaced in an afternoon. The crew was clean, hauled off the old frames, and the quote held."
- Colette Rhee"Got quotes from three companies. Westlight wasn't the cheapest but they were the only one who measured everything carefully and put it all in writing. Worth it. No surprises on install day."
- Craig Dillard










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