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 estimateFast, Reliable Window Installation Across Pasadena
Window installation in Pasadena is rarely a straightforward swap. Most homes here were built between 1905 and 1955, and their window openings carry original framing, old wiring, and city design review requirements that a standard retrofit quote won’t account for. At Lightwell Windows Pasadena, we start every job with an inspection of the rough opening before we write a number, so the price you approve is the price that holds. If you’re planning window work in Bungalow Heaven, Normandie Heights, or anywhere else in Pasadena, call (626) 628-2308 and we’ll walk you through what your walls will actually turn up.
Why Lightwell Windows Pasadena Is Pasadena’s Preferred Window Installation Company
We carry eight manufacturer brands, including CGI, ES Windows, and ECO Window Systems, so the recommendation fits the home rather than the installer’s preferred vendor. That matters in Pasadena, where a 1920s Spanish Colonial Revival on San Rafael Avenue needs something very different from a 1960s ranch in Hastings Ranch. Keith Yamada, who leads our Pasadena team, has walked enough of these houses to know what the walls hide before we open them. Every job gets a written price before work starts, and every crew member is background-checked, uniformed, and trained to the C.A.R.E. values: Clean up like it’s our own home, Ask before moving anything, Respect quiet hours, Explain the price before the work. The 365-Day Done Right Promise covers the finished install, and a live person answers the phone 24/7 if something isn’t right afterward.
Styles & brands we work with
Picture Window in Pasadena
Picture windows are common across Pasadena’s Mid-Century homes, and replacing one is straightforward until you open the wall. We inspect the header, the siding flashing, and the rough opening before touching anything, because a 1950s stud bay in Chapman Woods or San Rafael often hides undersized framing that a code inspector will flag once it’s exposed. The job involves removing the old fixed sash, repairing or replacing the frame as needed, installing the new insulated glass unit, and waterproofing the opening with new flashing and sill pan. Most picture window replacements here run $900 – $2,800 per opening, with the higher end covering structural header repairs and custom sizing.
Seismic & Thermal Upgrades
Picture windows sit in wide wall openings, which means they’re a weak point in an earthquake. We add seismic clips and upgrade the rough opening as part of the install so the wall carries load the way code now requires. Since picture windows face full Pasadena sun for much of the day, we recommend Low-E coatings that cut heat gain without darkening the view.
Pre-1930s Character Matching
On older Craftsman and Spanish Revival homes, a picture window may have started life as a bank of paired double-hungs or a divided-lite sash. If the window is original and the home sits in a designated historic district, Pasadena’s design review board will likely require matching species, muntin profile, and sometimes single-pane glass with an exterior storm. We can build to that standard.
Bay Window Installation in Pasadena
Bay window installation in Pasadena involves rebuilding a projection that carries its own roof load, which is why it’s the job most commonly underbid by contractors who don’t pre-inspect. On a 1910s bungalow north of Colorado Boulevard, we’ve opened bays and found the entire supporting knee wall rotted through, with the window literally held in place by the exterior trim. A proper bay install includes a full frame and support inspection, new weatherproofing at the seat board and rough opening, structural reinforcement where needed, and the window units themselves. Most bay window installations here run $3,800 – $9,500 depending on size, glazing, and the condition of the supporting frame.
History-Approved Bays
Bungalow Heaven’s design review process applies to bay windows just as strictly as any other opening. That means matching the original wood species, the muntin bar profile, and often the window’s operating type. We’ve restored bays where the only route to approval was milling new Douglas fir to match the original divided-lite pattern.
Modern Frame Buildings
Not every Pasadena bay is historic. Homes built from the 1960s onward in neighborhoods like Daisy Villa and Upper Hastings Ranch often have aluminum or vinyl bays that have lost their seal. Those are simpler projects: remove the old projection, flash the new seat board, install the new bay, and insulate the floor cavity beneath it.
Trusted Brands We Service in Pasadena
Our Window Installation team services and installs products from CGIE, ES Windows, and ECO Window Systems, among the eight brands we carry. That local range means we can order the right glass package and hardware for a Pasadena home without a three-week shipping delay from out of state. For homeowners in Pasadena who need historically appropriate divided lites or hurricane-rated impact glass, we can usually coordinate the product order while the rough opening is still being prepped.
Common Window Installation Problems We See in Pasadena Homes
- Design review rejection: A crew installs off-the-shelf vinyl units in a landmark district, and the city rejects the work. We pre-check what the Design Review Board will require before ordering product, so you don’t pay for windows twice.
- Knob-and-tube wiring behind the opening: Pasadena’s pre-1940 homes often have original wiring running through the wall adjacent to window boxes. Exposing it triggers a code upgrade. We inspect first and write an allowance into the contract, so the upgrade is priced and approved before it happens.
- Dry rot in bottom rails and sills: North-facing openings on older Pasadena homes collect winter moisture and rot from the bottom up. This is especially true on 1910s bungalows in Bungalow Heaven, where original wood sashes have had a century of rain exposure.
- Failed original flashing: Many Spanish Colonial Revival homes from the 1920s were built without sill pans or modern flashing at the rough opening. The first Santa Ana-driven rain after a window install finds every gap. We install new flashing and pan as standard on every opening.
See the difference
Before
After
Before
After
Before
AfterPricing for Window Installation in Pasadena, CA
Most standard window installs in Pasadena run $700 – $2,800 per opening, with picture windows on the upper end and simple single- or double-hung replacements on the lower end. Bay window installations start around $3,800 and can reach $9,500 when structural repair, custom millwork, or historic replication is involved. What moves the number is almost never the window itself. It’s what we find inside the wall: outdated wiring, undersized framing, rotted sills, or design review requirements that call for custom replication rather than standard units. We write the price before any work starts, and if an inspection uncovers a hidden problem, it’s priced and approved in writing before we touch it. Call (626) 628-2308 and we’ll give you a written line-item estimate specific to your openings.
We Also Serve Cities Near Pasadena
Our crews work throughout the San Gabriel Valley. We regularly schedule window installs in San Marino, Temple City, Arcadia, and El Monte along with our Pasadena projects. If you’re a few minutes outside the city, the same inspection-first process and written pricing applies. Just let us know your neighborhood when you call.
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 Installation in Pasadena
Bungalow Heaven and other Pasadena landmark districts require design review before altering any street-visible window. The board typically requires matching the original wood species, muntin profile, and sometimes single-pane glass with an exterior storm to preserve the building’s character. Off-the-shelf vinyl replacements are routinely rejected. We check what your district requires before ordering product, so approval is part of the plan rather than an obstacle after install. Call (626) 628-2308 if you’re in Bungalow Heaven and want to know what your specific opening will require.
Pasadena’s Mediterranean climate, with hot dry summers and mild wet winters, causes significant expansion and contraction of wood frames, which leads to sticking, warping, and seal failure. On a 1910s Craftsman bungalow in Bungalow Heaven, our crew pulled original double-hung sashes and found the bottom rails on the north-facing casements riddled with dry rot from decades of winter moisture. Intense sun exposure also degrades old glazing putty and finishes. Often the fix is restoration rather than full replacement, especially when design review rules apply.
We inspect the rough opening before we write the final price. Pasadena’s pre-1940 homes often have knob-and-tube wiring running through window adjacent wall cavities or undersized framing that code now flags once exposed. If we find either, we write an allowance into the contract, price the upgrade, and get your written approval before doing the work. Nothing gets done behind your walls without your signature on the number.
Yes, and many Pasadena homeowners do. Impact-rated glazing from brands like CGI or ES Windows isn’t just for hurricane zones. It provides better security, noise reduction, and UV protection, all useful on busy Pasadena streets and for south-facing rooms with full sun exposure. We can supply and install impact units that also meet historic district requirements, though the glazing package will need design review approval just like any other window.
We remove the old fixed sash, inspect the framing and flashing, repair or reinforce the rough opening, then install the new insulated glass unit with new flashing and sill pan. On a Spanish Colonial Revival home, the frame opening is often wider than modern standard sizes, so custom sizing is usually required. We also check for failed original flashing, which many 1920s Pasadena homes were built without. You’ll get a written price before the window is ordered, and the price holds unless the inspection uncovers something we agreed to handle in writing.
Schedule Your Free Window Installation Estimate in Pasadena
Before you sign any window contract, ask the contractor to inspect the rough opening and put the findings in writing. That’s what we do on every Pasadena job. Our crews show up with shoe covers and drop cloths, use pet-safe products wherever there’s a choice, and photograph the clean-up before they leave. Written price before work starts, live phone answered 24/7, and the 365-Day Done Right Promise on every install. Call (626) 628-2308 to schedule your free estimate.
Written by Keith Yamada, Owner at Lightwell Windows Pasadena, serving Pasadena, CA since 2010.
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.