Double hung
Horizontal roller
Casement
Bay & bow
Sliding glass doors
Entry doors
Impact garage doors
PGT
CGIFree in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Get your free estimateWindow Company in San Marino, CA
Window and door work in San Marino follows a different set of rules than nearly anywhere else in the San Gabriel Valley. The city is known for its historic estates, strict preservation ordinances, and homes where architectural integrity matters as much as energy performance. We’re Lightwell Windows & Doors, an independently owned Cedarwell location, and we help San Marino homeowners navigate window replacement, window installation, and door installation across custom-built homes from the 1920s through the 1950s. If you’re weighing options for an older home with steel casement windows or a landmark property with design-review requirements, call (626) 628-2308 and we’ll walk through what’s possible.
Why San Marino Homes Are Different
Most San Marino homes were built between the 1920s and 1950s as large, custom residences in Spanish Colonial, Tudor, and English Revival styles. That means arched doorways, custom millwork, and steel casement windows are common, along with the maintenance challenges they bring. Original steel frames often carry lead-based paint and single glazing, and pulling them out entirely can trigger design-review pushback on landmark properties. The go-to solution in many cases is custom interior storm windows that preserve the original look while adding thermal performance. San Marino’s Mediterranean climate adds another layer: hot, dry summers and Santa Ana winds push demand for dual-pane, low-E glazing and robust weatherstripping that manages solar gain and dust without changing the home’s historic character. We plan every San Marino job around those constraints, not in spite of them.
Styles & brands we work with









Our Main San Marino Services
Two jobs dominate most calls from San Marino homeowners: replacing aging or failed windows, and installing new doors that match the home’s architectural style while sealing properly. Here’s what each involves locally.
Window Replacement in San Marino
Replacing windows in San Marino usually means working with older openings, custom sizes, and finishes that need to match the original architecture. Many homes have steel casement windows or wood frames that have warped over 70 to 100 years, and getting a clean fit without altering the exterior look takes careful measuring and often custom millwork. We carry ViewLux and PGT lines that pair well with historic profiles, and every replacement starts with a written price. Window Replacement in San Marino covers the full process, from design-review considerations to final trim.

Window Installation in San Marino
New window installation in San Marino often follows a renovation or addition, and the goal is a clean, square opening that performs well in summer heat and winter rain. Flashing details matter here because the occasional heavy storm can find any gap left by a rushed job. Our crews are background-checked, uniformed, and we follow the C.A.R.E. values on every visit: clean up like it’s our own home, ask before moving anything, respect quiet hours, and explain the price before work starts. Window Installation in San Marino walks through what a typical install day looks like.

Door Installation in San Marino
Front doors in San Marino are often the architectural focal point of the home, whether it’s an arched Spanish Colonial entry or a carved Tudor door with custom glass. Installation means preserving that profile while upgrading weatherstripping, hardware, and security. We install Therma-Tru doors that hold up to San Marino’s dry heat and occasional Santa Ana dust, and we protect floors and furniture with drop cloths and shoe covers from the first step inside. Door Installation in San Marino has the details on styles, materials, and lead times.

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.
Lightwell Windows & Doors: Our Approach
A light well is the architectural opening that pulls daylight deep into a building. That’s what a well-installed window or door should do for your home in San Marino. We’re an independently owned Cedarwell location, and every job we take on is covered by the 365-Day Done Right Promise. If the finished work isn’t right, we make it right, no debate and no countdown. That promise sits on top of how we already work: a written price before anything starts, shoe covers and drop cloths on every visit, a photo of the clean-up before the crew leaves, and pet-safe products wherever there’s a choice. Led by Keith Yamada, our team answers the phone live around the clock. When something goes wrong with a new install, you get a person, not a voicemail maze.
Brands We Service in San Marino
We work with a curated lineup of manufacturers so the recommendation fits the home, not a preferred vendor. In San Marino, we most often specify ViewLux, PGT, and CWS for their historic-appropriate profiles and strong thermal ratings. Parts are stocked locally for faster turnaround on common repairs. See the full selection on our brands page.
See the difference
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AfterPricing for Window Company in San Marino, CA
| Service | Typical range in San Marino |
|---|---|
| Window replacement (per opening, standard size) | $600 – $1,100 |
| Window replacement (custom historic profile) | $1,100 – $2,000 |
| Full-home window replacement (10 – 20 openings) | $8,000 – $24,000 |
| Interior storm window retrofit (per window) | $300 – $600 |
| Door installation (standard entry) | $1,200 – $2,800 |
| Door installation (custom or arched entry) | $3,000 – $6,500 |
| Sliding or French door installation | $2,000 – $4,500 |
| Weatherstripping and sealing package (per door) | $150 – $400 |
Prices in San Marino push upward when the home has landmark status, arched or non-standard openings, or original steel frames that need custom retrofitting rather than simple replacement. Design-review documentation and specialty millwork add cost too. What won’t change is the number you’re quoted at the start, because we put every price in writing beforehand and stand by it with the Cedarwell Care Promise.
Neighborhoods We Serve in San Marino
We work throughout San Marino, from the estates near Lacy Park and The Huntington to the quieter streets by Valentine Elementary and the Mission District. Our crews route locally from the Los Angeles office and typically arrive within a day or two of your call for estimates.
- Lacy Park area
- Huntington Drive corridor
- Mission District
- Valentine Elementary vicinity
- Stoneman Drive area
Service Area – Cities Near San Marino
Lightwell Windows & Doors is based in Los Angeles and coordinates scheduling for San Marino jobs locally. We also serve nearby communities including Pasadena, CA, Temple City, CA, Arcadia, CA, and El Monte, CA. If you’re just outside San Marino, call and we’ll confirm coverage.
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
Most estimate visits in San Marino happen within two to three business days. For urgent issues like a door that won’t latch or a broken window, we can often schedule sooner. Call (626) 628-2308 and a live person will book the visit.
Many properties in San Marino, especially landmark or historically designated homes, do require design-review approval before changes to visible windows or doors. We help homeowners understand what’s needed and prepare documentation as part of the estimate process. Each project is different, so we check the property’s status before recommending a path forward.
No. Our no-hassle upfront pricing means the written quote you agree to is the price you pay. If hidden conditions appear during the job, we stop, explain what’s found, and get your approval in writing before proceeding. There’s no invoice surprise at the end.
Six Reasons Homeowners Choose Lightwell Windows Pasadena
Laminated glass and reinforced frames hold up to wind-driven rain, hail and flying debris, so your openings stay sealed when the weather turns.
Low-E insulated impact glass from our manufacturer lines commonly cuts monthly cooling bills 20-30%.
Laminated impact glass shuts out up to 40% of outside noise - traffic, neighbors, weather.
Monitoring services run $30-90 a month. Laminated impact glass resists forced entry around the clock, with no subscription.
Tighter seals and insulated glass even out hot and cold rooms and stop the drafts at the frame.
A full impact package upgrades curb appeal, buyer confidence and appraised value in one project.
Other Lightwell Windows Pasadena Services
What Neighbors Say About Lightwell Windows Pasadena
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
"Replaced drafty old windows and a back door. The crew was gentle around my mother's antiques, protected everything, and cleaned up beautifully. Home feels warmer and calmer already."
- Walter Prim"Quiet, considerate install of several windows. They cleaned the glass and the sills and vacuumed every room. You'd never know a crew had been through. House is quieter and brighter."
- Brent Sakamoto"New patio slider. Clean install, they protected the floor and hauled off the old door. Quiet, polite crew that worked around my work calls without complaint."
- Andre Bellamy