Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterFast, Reliable Sliding & Patio Doors Across Kensington
We replace a lot of sliding doors in Door Installation - Kensington projects that should have lasted another twenty years. The failure usually isn’t the fault of the door itself. It’s what the door was made of, and whether anyone sealed the rough opening for the fog belt before the jamb went in. If you live up on the Arlington ridge or along the quieter streets east of Colusa Avenue, you’ve probably noticed how the morning marine layer settles against the west-facing walls and soaks everything. A sliding patio door in Kensington needs to be specified for that moisture, not just ordered from a catalog. Call (888) 635-0804 and we’ll walk you through what actually holds up here.
Why TruePane Windows & Doors Is Kensington’s Preferred Sliding & Patio Doors Company
Dale Kessler founded TruePane Windows & Doors in 2008 after enough years in the trade to know that most sliding door failures are installation failures dressed up as product failures. The workmanship carries a Done Right Promise, and every manufacturer warranty gets registered in writing with durations stated before the truck leaves your driveway. That’s The Keystone Standard. It means if something’s wrong, we make it right. No paperwork fight, no arguing about who’s responsible.
Kensington homeowners tell us the same thing: they’ve had contractors who didn’t realize Kensington is unincorporated Contra Costa County, not Berkeley. The permit gets pulled through the Contra Costa County Building Inspection Division, and contractors who file through the wrong jurisdiction stall the job for weeks. We know the difference because we work here regularly. Our technicians are background-checked and uniformed, and they treat your home the way they’d treat their own mother’s. A live person answers our phone 24 hours a day, seven days a week. Not a voicemail tree, not a regional call center.
Our Sliding & Patio Doors Services in Kensington
Heavy-Duty Sliding Doors
Ridge-facing lots in Kensington catch lateral wind loads that lower-elevation flatlands never feel. A builder-grade aluminum slider flexes, rattles, and eventually binds. We specify heavy-duty frames with reinforced meeting rails and stainless steel roller assemblies. On a house near Sunset View Cemetery, we installed a door rated for coastal wind zones that the previous door could not have survived. The difference is in the frame gauge and the anchoring, not the sales brochure. This is where the Sliding & Patio Doors team earns its keep.
Panoramic Sliding Systems
The view from the upper slopes of Kensington looking west toward the Golden Gate is the reason people buy these homes. A panoramic sliding system lets that view stay unobstructed, with panels that stack or pocket cleanly. But multi-panel systems are heavier, which means the floor track and header support need to be specified for the load. We measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before we leave. Brands like ES Windows and ECO Window Systems build the kind of narrow-stile frames that suit a Kensington hillside view without looking like a commercial storefront.
Screen Door Installation
Kensington’s fog belt keeps screens wet for hours every morning. Cheap screen frames warp, and the mesh sags out of the spline within a season or two. We install retractable and fixed screen systems built for damp coastal conditions, using corrosion-resistant hardware that won’t seize up by the second winter. If you’re near Kensington Park or off Purdue Avenue, you know how quickly cheap hardware turns to rust up here.
Pocket & Barn Doors
Older Kensington homes have narrower interior wall cavities than newer construction, so pocket door retrofits take some care. We spec the thinnest viable pocket frame and make sure the wall won’t be compromised. Barn doors are a practical option where a swinging door would eat up floor space, and we hang them on hardware that won’t creep down the track over time. Done right, the door glides for decades.
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.
Trusted Brands We Service in Kensington
We’re authorized installers for more than a dozen manufacturer lines, including, PGT, and CGI. For Custom Windows & Doors in Kensington homes where the Craftsman divided-light look matters, we often recommend Milgard fiberglass or wood-clad lines that take paint well and hold their shape through the wet season. CWS and ES Windows get specified for panoramic openings where the frame profile needs to stay thin. We keep parts for these brands stocked and can usually quote a repair or replacement in a single visit. No second appointment left hanging.
Common Sliding & Patio Doors Problems We See in Kensington Homes
- Rusted steel tracks that bind. Original steel sliding-door tracks from the 1940s and 1950s rust fast in Kensington’s overnight fog. The sash gets so stiff you have to lift the whole panel just to move it an inch. When we remove these, the track lip is often corroded through.
- Oxidized aluminum frames on the ridge side. The west-facing wall of a Kensington house takes the brunt of the marine layer. Non-marine aluminum oxidizes at the welds and screw bosses, the door loses its air seal, and every wind gust rattles the sash.
- Fogged glass from failed seals. Persistent moisture and temperature swings shorten the life of cheap insulated glass units. Fog between the panes means the seal has failed and the argon has leaked out. The glass service life is over, no matter what the caulk aisle at the hardware store suggests.
- Permit dead stops. We’ve been called in after a contractor pulled a sliding-door permit through Berkeley or El Cerrito. Kensington is unincorporated Contra Costa County, so the forms went to the wrong jurisdiction and the project sat for weeks. The county handles it, every time.
Pricing for Sliding & Patio Doors in Kensington, CA
For a standard two-panel sliding patio door in Kensington, plan on $1,800 to $4,200 installed, depending on frame material and glass package. Heavy-duty sliders built for ridge-top wind load run $3,500 to $6,500. A multi-panel panoramic system typically falls between $6,000 and $14,000, and most of that is the oversized glass and reinforced header work. Screen door installation runs $450 to $950 for quality retractable or fixed systems. WUI-compliant fire-resistant glazing adds roughly 15 to 20 percent over standard glass, because the tempered units and the compliant frame materials carry a real premium. If you’re in Kensington, we’ll give you a written line-item quote with no change orders and no surprises. Estimates are free.
Key Takeaways:
- Kensington’s VHFHSZ designation means sliding patio doors must meet WUI fire-resistant glazing and frame standards.
- Marine fog accelerates corrosion that flatland cities never see; door hardware and frames need marine-grade specification.
- Permits go through Contra Costa County Building Inspection Division, not a city department.
- Free written estimates, fixed pricing, and both warranty layers registered in writing before we leave.
We Also Serve Cities Near Kensington
Our sliding and patio door work extends to nearby communities including Parkway, Arden-Arcade, Ladera Heights, and Commerce. The houses differ in age and exposure, but the standard doesn’t change: measure twice, quote honestly, and register both warranty layers in writing. If you’re a few miles from Sliding & Patio Doors in Kensington, the same crew can reach you.
Serving Kensington, CA - Our Local Coverage Area
We’re based in the Kensington 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 Kensington
Yes. Kensington sits in a CAL FIRE Very High Fire Hazard Severity Zone, so any window or door replacement must meet California’s Wildland-Urban Interface fire-resistant glazing and frame standards. Flatland El Cerrito and Richmond do not face the same requirement. A sliding door installed without WUI-compliant glass and framing will fail inspection and get red-tagged. We specify the compliant product up front so the permit passes the first time. Call (888) 635-0804 for an exact quote, free.
Craftsman bungalows in Kensington were built with specific rough openings and divided-light sash proportions that mass-market vinyl sliders cannot match. The opening is often a half-inch off modern standards, and the exterior casing profile is nothing like what a stock flange kit expects. Forcing a standard door in means cutting stucco, rebuilding trim, and losing the architectural character that drives Kensington property values. We order custom or semi-custom units with the correct divided-light pattern and wood-clad interior. It costs more than a big-box slider, and it preserves the house.
Fog between the two panes of a sliding door means the insulated glass unit’s seal has failed and the desiccant has absorbed all the moisture it can hold. The argon or krypton fill is gone, so the door has lost most of its thermal performance. On a Kensington hillside where overnight moisture soaks the west wall, failed seals are more common than in Window Installation - Kensington inland projects. The repair is a new sealed glass unit installed correctly, not just new weather stripping. We can quote the replacement glass on the first visit.
The marine layer that sits over Kensington carries salt and moisture that corrode steel tracks and non-marine aluminum hardware faster than dry inland air. Roller assemblies seize, track lips rust through, and screw bosses on cheap aluminum frames oxidize until the door loses its air seal. We specify stainless steel rollers, marine-grade fasteners, and frames rated for coastal exposure. The price gap between coastal-spec and inland-spec hardware is real, and the cheap spec costs more within a decade.
Kensington does not have a city permit office because Kensington is unincorporated Contra Costa County. The permit comes from the Contra Costa County Building Inspection Division. Contractors who assume Berkeley or El Cerrito jurisdiction submit the wrong forms and stall the job. We pull permits through the county every week and know what the inspectors require, including WUI compliance documentation. Call (888) 635-0804 and we’ll handle the paperwork.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Kensington since 2008 through a heritage of craft and community commitment.