Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Sliding & Patio Doors Across Pasadena
Door Installation in Pasadena for sliding and patio doors typically runs $2,400 to $7,800 installed depending on the door system, glazing package, and whether your home sits in one of the city’s Historic Landmark Districts. If you live in Bungalow Heaven or any designated historic area, expect Design Review requirements to shape the door you can actually install. We’ve worked those streets for years. Call (888) 635-0804 and we’ll walk you through what Pasadena will approve before you spend a dollar.
Our team knows which doors hold up in this climate and which ones get kicked back by the Historic Preservation staff. That local knowledge saves you weeks of permit back-and-forth. Pasadena is not a generic market. Wood-clad doors, true divided lights, and low-E glass are often the price of admission here, not upgrades.
Why TruePane Windows & Doors Is Pasadena’s Preferred Sliding & Patio Doors Company
TruePane has built its reputation in Pasadena one Bungalow Heaven Craftsman, one Spanish Colonial Revival, and one mid-century hillside home at a time. The work here is different. Original mortised wood door frames from the 1920s do not tolerate sloppy measurements, and a door that binds in July is a door we get called back to fix. We’d rather measure twice and install once.
Dale Kessler founded this company on a rule that names it: if the pane is not true, the job is not done. That standard applies to every sliding door we hang in Pasadena. Our technicians are background-checked and uniformed. Every opening gets measured twice. Before the truck leaves your driveway, both manufacturer warranty layers are registered in writing with durations stated. That’s The Keystone Standard, and it’s been our baseline since 2008 of community service.
We are not a franchise playbook. We hire local, train apprentices into journeymen, and plan to still be answering the phone when your grandkids own that house on North Marengo Avenue. A live person answers our calls 24 hours a day, seven days a week. Not a voicemail tree. Not a callback form.
Our Sliding & Patio Doors Services in Pasadena
We install and service the full range of Sliding & Patio Doors across Pasadena, from straightforward patio sliders to heavy-duty panoramic systems. Most jobs are completed in a single visit, and pricing is fixed in writing before we order anything.
Patio Sliding Doors
A standard two-panel patio slider runs about $2,400 to $4,200 with a quality vinyl or aluminum frame and low-E glass for Window Replacement in Pasadena projects. If Design Review applies, add wood or clad-wood and true divided lights, which pushes the door into the $4,800 to $7,800 range. We quote manufacturer lines side by side on paper so you see exactly what you are buying., PGT, and CGI are lines we install regularly, and we are an authorized installer for each.

Panoramic Sliding Systems
For homeowners opening a great room to a terrace or pool, Panoramic Sliding Systems bring a lot of glass and very little frame. Pasadena’s hillside homes in Very High Fire Hazard Severity Zones may require tempered or fire-rated glazing on these systems, which is a specification we have handled for years. Expect $9,000 to $18,000 for a multi-panel system with proper header support. We will sit down with your architect or designer and get the engineering right before the order is placed.

Heavy-Duty Sliding Doors
Heavy-duty sliders handle wider panels and heavier glass, which matters when you are putting an 8-foot door panel into a 1920s wall. Pasadena’s older homes often need new jamb construction and header reinforcement before a heavy door can hang safely. We do that structural work as part of the install, not as a surprise line item. These doors typically run $4,000 to $9,500 depending on panel weight, glazing, and hardware.

Pocket & Barn Doors
Pocket doors are one way to save floor space in a Pasadena bungalow where every square foot counts. Barn doors bring a different look, but they need a solid track system to glide quietly. Whether you want a pocket slider that disappears into the wall or a barn door on exposed hardware, we can frame it, hang it, and get the reveal right. Most pocket door retrofits run $1,800 to $4,000 including new framing, drywall patch, paint, and the door slab if needed.

What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Pasadena
We are an authorized installer for more than a dozen manufacturer lines. For Pasadena work where Design Review is in play, the two lines we lean on most are Andersen and Marvin, both of which offer wood-clad profiles that meet historic standards. For coastal durability and impact ratings, PGT and CGI make our Impact Windows & Doors in Pasadena that we trust on hillside exposures. ES Windows gives us a European profile for the modern homes that want a thinner frame and more glass. We stock common replacement parts for Pasadena customers so hardware swaps do not mean a two-week wait on a shipping dock.
Common Sliding & Patio Doors Problems We See in Pasadena Homes
- Worn or unlevel tracks on original 1920s assemblies. The original door tracks in Pasadena’s older homes are steel or brass set into wood that has shifted over a century. Doors bind, derail, or drag. Sometimes we can re-level the track; sometimes the correct fix is a new door with a modern engineered track.
- Fogging between the glass panes. When the seal fails on an older double-pane unit, moisture gets between the glass and the view turns milky. This is common in Pasadena because of the temperature swings from the foothills. The fix is a replacement insulated glass unit, not a new door. We handle that on a single visit in most cases.
- Afternoon solar heat gain on east- and west-facing doors. Pasadena regularly tops 100°F in summer under the San Gabriel Mountains. A patio door without low-E glass and a low solar heat gain coefficient turns an adjacent room into an oven. We spec the right glazing package so the door cuts heat, not amplifies it.
- Vinyl sliders rejected by Design Review. In Bungalow Heaven and other Historic Landmark Districts, a vinyl slider with simulated divided lights will not pass. The City requires wood or clad-wood with true divided lights matching the original Craftsman sash profile. We know what gets approved because we have submitted these permits many times.
Pricing for Sliding & Patio Doors in Pasadena, CA
Here is the honest math for Pasadena. A basic vinyl two-panel patio slider starts around $2,400 installed. A wood-clad slider approved for a Historic Landmark District runs $4,800 to $7,800. Heavy-duty and panoramic systems range from $9,000 to $18,000+. The variable that surprises people is Design Review: true divided lights, wood or clad-wood frames, and the permit cycle add lead time and hundreds of dollars in material cost compared to the same job in Arcadia or Temple City. Lead times from the manufacturer, not the labor, set the calendar. We fix the price in writing before ordering anything. Call (888) 635-0804 for a free estimate with line items you can keep.
We Also Serve Cities Near Pasadena
Our crews serve San Marino, South Pasadena, Altadena, and San Gabriel from the same dispatch team that covers Sliding & Patio Doors in Pasadena. If you are in one of those cities and need a door quote, call (888) 635-0804 and we will schedule the same week in most cases.
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 - Sliding & Patio Doors in Pasadena
No. Pasadena’s Historic Preservation staff requires wood or aluminum-clad wood door frames with true divided lights matching the original Craftsman sash profile for any door in a designated Historic Landmark District, including Bungalow Heaven. A vinyl slider with simulated divided lights will be rejected at Design Review. If you live in a historic district, start with the door specification the City will approve, then get pricing. Call (888) 635-0804 and we will tell you exactly what passes before you spend money on a door the City will not allow.
Fogging between panes means the insulated glass unit’s seal has failed and moisture is now inside the airspace. Pasadena’s swings between foothill cold mornings and 100°F afternoons accelerate seal fatigue. The fix is a replacement insulated glass unit, not a whole new door. We can order it to your current frame and install it on one visit in most cases. Call (888) 635-0804 for a free estimate.
California Title 24 energy code applies to every replacement door in Pasadena. That means your new patio slider must meet maximum U-factor and solar heat gain coefficient requirements based on your climate zone. In practice, most Pasadena replacements require low-E coated glass, often with argon fill, and sometimes a lower SHGC package on east- or west-facing exposures. We quote the Title 24-compliant glazing as the baseline, not an upsell. Call (888) 635-0804 for a door that passes inspection the first time.
Yes, but the wall you are cutting into may contain original lath-and-plaster over wood framing, and if the home is a designated landmark, any exterior-facing door still requires Design Review approval. Interior pocket doors generally fall outside Design Review but still need proper header support and straight, level walls. We have framed pocket doors into many Pasadena bungalows. Expect to plan around existing plumbing, electrical, or structural posts inside the wall cavity. Call (888) 635-0804 and we will come look at your wall before you start tearing into it.
If your home sits in one of the northern foothill neighborhoods inside California’s designated Very High Fire Hazard Severity Zone, you may need tempered glazing and non-combustible or ember-resistant door materials. The requirement applies to new and replacement doors near the wildland-urban interface. We can pull the fire-zone overlay for your address and tell you exactly what your door must meet before we order it. Call (888) 635-0804 for a free estimate and a specification you can trust.
TruePane Windows & Doors serves all of Pasadena, CA, including zip code 91101 and every neighborhood from Bungalow Heaven to the San Gabriel Mountain foothills. We are an authorized installer for, PGT, CGI, and ES Windows. Every job carries the Done Right Promise and The Keystone Standard. We offer a free written repair estimate, a maintenance check, and a permanent 5% discount for seniors and veterans. A live person answers the phone 24 hours a day, seven days a week. Call (888) 635-0804 to schedule your free estimate. If the pane is not true, the job is not done.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Pasadena since 2008.



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