Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Pasadena, CA
Pasadena is not a one-size-fits-all window town. The housing stock runs from 1905 Craftsman bungalows with original wood sashes to mid-century ranches with failing aluminum frames, and the city’s Historic Preservation Commission keeps a close eye on what goes into the older homes. That means a window company here has to know Title 24 energy code as well as it knows wood-sash profiles and the Bungalow Heaven design review process. Westlight Windows & Doors handles both sides of that equation. Call us at (903) 354-7134 and we’ll walk you through what your specific home actually needs.
Why Pasadena Homes Are Different
The dominant Pasadena housing stock is 1905-1935 Craftsman and Spanish Colonial Revival, much of it still wearing original single-pane wood double-hungs and period-correct entry doors. South and east Pasadena fill in with post-WWII ranches that are now reaching the age where aluminum-frame windows start to fail at the corners. Two forces shape every project here. First, the climate: Pasadena sits inland in the San Gabriel Valley, where summer highs routinely pass 100°F and run 15 to 20 degrees hotter than the Westside. Low-e glass and heat-rejecting coatings are not upgrades here, they are how you keep an upstairs bedroom livable in August. Second, the historic overlay: Bungalow Heaven alone holds more than 800 contributing structures, and the Historic Preservation Commission will reject vinyl windows on those homes outright. We carry wood and clad-wood lines specifically because the HPO demands them. The foothill neighborhoods to the north add another layer, with Very High Fire Hazard Severity Zone requirements pushing tempered glazing and ember-resistant thresholds into more projects each year.
Our Main Pasadena Services
Most Pasadena homeowners come to us for one of three jobs: replacing old windows, installing windows in a new addition or remodel, or swapping out an exterior door that has outlived its weatherstripping. Each has its own page below.
Window Replacement in Pasadena
Replacement here means pulling a 1920s double-hung and putting back something that looks right and seals tight. In historic districts, that often means a wood or clad-wood sash with matching muntin profiles, reviewed by the HPO before a permit is issued. In the ranch homes to the south, it more often means a full-frame swap from aging aluminum to a modern double-glazed unit with low-e glass rated for Pasadena’s summer heat. We quote both paths and handle the paperwork either way. Full details are on our Window Replacement in Pasadena page.

Window Installation in Pasadena
New-construction and addition windows have a different failure profile than replacements. The opening needs to be flashed correctly the first time, because Pasadena’s winter rains will find a poorly lapped sill within a season or two. We install for general contractors and for homeowners acting as their own GC, and we spec units that meet Title 24 on day one rather than requiring a title-24 re-check later. See the full breakdown on our Window Installation in Pasadena page, including how we sequence around inspections.

Door Installation in Pasadena
A front door in a Spanish Colonial Revival home is a focal point, and the wrong replacement reads from the street. We install entry doors from Therma-Tru and ViewLux, match period-correct hardware where the HPO requires it, and handle the threshold details that matter in the northern foothill fire zones where ember intrusion is a real concern. Our Door Installation in Pasadena page covers scope, timeline, and what a typical entry door swap involves.

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 Pasadena
We carry eight manufacturer lines and stock the ones Pasadena jobs call for most: PGT and CGI for impact and fire-zone projects, CWS for custom wood and clad-wood, and ES Windows for modern residential. Parts availability is strong locally, which keeps most repair and replacement jobs moving without a two-week shipping pause. See our brands page for the full list.
Pricing for Window Company in Pasadena, CA
| Service | Typical range in Pasadena |
|---|---|
| Single double-hung window replacement (standard size, retrofit) | $650 - $1,200 installed |
| Full-frame window replacement (rot repair required) | $1,100 - $2,100 installed |
| Historic wood-sash window replacement (Bungalow Heaven / HPO review) | $1,500 - $3,000 per window |
| Vinyl window replacement (non-historic districts only) | $500 - $950 installed |
| Aluminum window replacement (ranch homes) | $550 - $1,000 installed |
| Picture window replacement (fixed, no sash) | $700 - $1,900 installed |
| Sliding glass door replacement | $1,800 - $3,800 installed |
| Entry door replacement (standard, no sidelites) | $1,400 - $3,200 installed |
| French door replacement (pair, exterior) | $2,500 - $5,500 installed |
| New-construction window installation (per opening, labor only) | $350 - $700 per opening |
| Low-e glass upgrade (per window, added to replacement) | $80 - $220 per window |
| Ember-resistant door threshold retrofit (foothill fire zones) | $300 - $750 installed |
Historic-review windows run at the top of these ranges because the product is wood or clad-wood and the paperwork cycle adds time. Every project gets a written price before any work starts, and that price does not change at the door.
Neighborhoods We Serve in Pasadena
Our crews work throughout Pasadena, and most jobs land within a fifteen-to-twenty-minute drive of the central dispatch point. The neighborhoods below are the ones we are in most weeks.
- Bungalow Heaven
- Madison Heights
- Linda Vista
- South Arroyo
- Hastings Ranch
Service Area – Cities Near Pasadena
We also take jobs in the communities immediately around Pasadena, including San Marino, CA, South Pasadena, CA, Altadena, CA, and San Gabriel, CA. Each has its own mix of older homes and mid-century stock, and the same upfront pricing and written guarantee apply on every job.
Serving Pasadena, CA - Our Local Coverage Area
We’re based in the Pasadena 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 Pasadena
We schedule most Pasadena estimates within the same week you call, and we give you a committed arrival window rather than a four-hour range. Phone lines are answered by a live person at (903) 354-7134, so scheduling happens in one call, not a callback chain.
Yes. For contributing structures in Bungalow Heaven and other landmark districts, we prepare the window and door submittals the HPO needs, including wood-sash details and finish specs. Homeowners still file the application, but our paperwork has gone through that review many times.
We serve Pasadena proper and the immediate neighbors: San Marino, South Pasadena, Altadena, and San Gabriel. If you are just outside those boundaries, call (903) 354-7134 and we’ll confirm whether we can reach you on the same schedule.
For a written, line-item quote on any window or door job in Pasadena, call (903) 354-7134. The estimate is free, and the price we give you is the price you pay.
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 Pasadena Customers Say
"Replaced eight drafty old windows that were basically single pane. The house is warmer already and the street noise is way down. Crew was on time both days and the price was exactly the quote."
- Harold Bemis"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










Before
After
Before
After
Before
After