Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Custom Windows & Doors Across Tiburon
Custom windows and doors in Tiburon are not a cosmetic upgrade. They’re a structural decision shaped by salt air, steep hillside lots, and a housing stock that ranges from 1950s redwood-frame originals to new glass-walled builds above Paradise Drive. We know this because we measure openings here every week, and we’ve seen what the bay does to the wrong frame material. If you’re planning a replacement or a full custom build, call (888) 635-0804 and we’ll send a technician who has worked Tiburon’s terrain before. The estimate is free, and the quote is fixed in writing before anything gets ordered.
Key Takeaways
- Tiburon’s salt-laden bay winds corrode standard aluminum frames in as little as 15 years, roughly half the lifespan you’d see in San Rafael.
- Marine-grade aluminum, fiberglass, or aluminum-clad wood are the baseline spec here, not an upgrade.
- Oversized glass panels and slim sightlines are standard requests because nearly every home is oriented to capture a bay view.
- Lead times, not labor, set the calendar on custom work. We fix pricing before ordering and register both warranty layers in writing.
Why TruePane Windows & Doors Is Tiburon’s Preferred Custom Windows & Doors Company
Dale Kessler founded TruePane in 2008 on a rule that still governs every install: if the pane is not true, the job is not done. That standard matters more on the Tiburon Peninsula than almost anywhere else in Marin, because the margin for error on a hillside opening is measured in millimeters, and the wrong frame choice shows up as pitting and seized hardware within a decade. Homeowners here tend to notice. They’ve lived in their houses for twenty or thirty years and they remember the contractor who left them with a door that binds in July.
Our technicians are background-checked and uniformed. They measure every opening twice before quoting, and they put manufacturer lines side by side on paper so you see exactly what you’re buying. We’re an authorized installer for more than a dozen lines including, and CGI. For Tiburon specifically, we stock marine-grade hardware and low-profile frame profiles because that’s what the peninsula demands. Scheduling is coordinated from our San Francisco Bay Area office, and crews serve Tiburon locally.
A live person answers the phone 24 hours a day, 7 days a week. Not a voicemail tree, not a callback form. When you call (888) 635-0804, you reach a person who can talk specifics about your project.
Our Custom Windows & Doors Services in Tiburon
We install, replace, and service the full range of custom windows and doors. Below are the services most Tiburon homeowners ask about. Each one carries the Done Right Promise and The Keystone Standard: both warranty layers registered in writing, durations stated, before the truck leaves your driveway.
Oversized Glass Panels
Most Tiburon homes are deliberately oriented to capture views of San Francisco, Angel Island, or the Golden Gate. That means large-format glass is the baseline request, not a premium option. We regularly specify oversized insulated glass units with low-E coatings that preserve the view without turning the living room into a greenhouse. The engineering on these panels matters: a 9-foot-wide unit needs a frame that can carry the dead load without deflecting, especially when the prevailing wind slams the west-facing elevation off the bay.
Custom Shape Windows
Mid-century Tiburon homes from the 1950s through 1970s were built with odd geometries: trapezoids, radius tops, angled corner glass. When those original single-pane units fail, you can’t just drop in a stock rectangle from a lumberyard. We fabricate to the exact opening, and we account for how the hillside settling has slightly racked the rough opening over the decades. The new unit gets a marine-grade frame and a seal that will hold against Tiburon’s persistent humidity.
Architectural Grilles & SDLs
Simulated divided lites give you the divided-light look of a traditional window without sacrificing the energy performance of a modern insulated unit. On Tiburon’s mid-century homes, we often match the original munin profile so the replacement reads as original to the house. On newer custom builds along Paradise Drive, homeowners want the opposite: minimal sightlines, maximum glass, and grilles only where the architect calls for them. We handle both ends of that range.
Commercial Storefront Glazing
Tiburon’s small commercial district along Main Street and Ark Row has its own window and door challenges. Storefronts face direct sun off the water, and the aluminum frames on older storefronts corrode the same way residential frames do. We replace commercial glazing with marine-grade systems and can work around business hours to avoid closing down a shop for a full day.
Curtain Wall Systems
For hillside homes with full-height glass walls, a curtain wall system carries the entire structural load of wind and dead weight. This is not a standard window job. We coordinate with the architect or structural engineer on the project, verify the attachment points, and make sure the framing can handle the wind loads that come straight off the bay. On a recent Tiburon project, the original curtain wall had been under-spec’d and was leaking at the mullion joints. We replaced the system with marine-grade aluminum and re-flashed the transitions.
Trusted Brands We Service in Tiburon
We’re an authorized installer for more than a dozen manufacturer lines, and for Tiburon work we lean on brands that build to coastal specifications. Marvin and Pella both offer aluminum-clad wood with marine-grade finishes. Milgard’s fiberglass line holds up well against salt exposure. For impact-rated coastal systems, PGT and CGI are common specs on waterfront homes. We also work with ES Windows and ECO Window Systems for high-end custom projects where the architect has specified a particular European-style tilt-turn or lift-slide system. Because we install these lines regularly, we can quote side by side on paper so you see the real cost difference between a fiberglass custom unit and an aluminum-clad custom unit, not just a salesperson’s preference.
Common Custom Windows & Doors Problems We See in Tiburon Homes
- Pitted aluminum frames within a decade. Standard aluminum frames on the west and south elevations of Tiburon homes start showing corrosion pitting in eight to ten years. The salt-laden wind off Raccoon Strait accelerates oxidation that would take twenty years inland.
- Seized multi-point door locks. On waterfront homes along Paradise Drive and the Belvedere waterfront, we regularly find multi-point lock mechanisms rusted solid. The door may still latch with the handle, but the secondary bolts won’t throw. That’s a corrosion failure, not an adjustment issue.
- Fogged insulated glass units from seal failure. Tiburon’s persistent humidity means a failed seal shows up faster here than it does in Corte Madera or Larkspur. Once you see fog between the panes, the argon fill is gone and the unit’s thermal performance has dropped permanently.
- Doors that bind because the hillside moved. Tiburon’s lots are steep, and the soil creeps over decades. A sliding door that worked fine in 1995 may be binding in the frame now because the opening has settled out of square. We re-square the rough opening during replacement rather than forcing the new door into a racked hole.
Pricing for Custom Windows & Doors in Tiburon, CA
Custom windows and doors in Tiburon run higher than flat-grade Marin towns because the logistics are harder and the specifications are heavier. A typical custom replacement window on a Tiburon home runs $1,200 to $3,400 per unit depending on size, frame material, and glass package. Oversized glass panels start around $4,000 and go up from there when you’re talking 8-foot and wider openings with marine-grade frames. A custom entry door with side lites typically runs $6,500 to $15,000 installed. Curtain wall replacement is a structural project and gets quoted after an engineering review, but most Tiburon curtain wall jobs land between $30,000 and $90,000 depending on linear footage and access.
The honest variable is lead time. Manufacturer lead times on custom units run six to fourteen weeks depending on the line and the glass spec. Labor is usually five to seven working days once materials land. We fix the price in writing before we order anything, so lead times don’t become surprise change orders. Call (888) 635-0804 for a free estimate and a written line-item quote.
We Also Serve Cities Near Tiburon
Our crews cover the Tiburon Peninsula and the surrounding Bay Area. If you’re in Parkway, Arden-Arcade, Ladera Heights, or Commerce, the same team and the same Done Right Promise apply. Call (888) 635-0804 and we’ll schedule a measurement visit at your property.
Serving Tiburon, CA - Our Local Coverage Area
We’re based in the Tiburon 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 - Custom Windows & Doors in Tiburon
Tiburon is flanked by San Francisco Bay on three sides, and the onshore winds carry salt spray onto west-facing and south-facing elevations year round. Standard aluminum with a basic anodized or powder-coated finish starts pitting in eight to twelve years here, while the same frame ten miles inland in San Rafael might go twenty-five years before showing real wear. The fix is marine-grade aluminum with a chromium-free conversion coating and a maritime-rated finish, or switching to fiberglass or aluminum-clad wood. Call (888) 635-0804 if you’re seeing pitting on your current frames; we’ll tell you honestly whether they’re salvageable or at end of life.
Yes, and we do it regularly on Tiburon’s 1950s and 1960s homes. The key is matching the original munin widths, frame sightlines, and glass-to-frame ratio rather than dropping in a standard white vinyl unit that reads as obviously new. We can specify architectural grilles or SDLs that replicate the original divided-light pattern, and we can order frames in dark bronze or matte black finishes that match the original aluminum look without the corrosion problem. Most manufacturers we work with offer custom exterior colors, so the house keeps its period character while the glass and seals perform like a modern unit.
No, if the glass package is specified correctly. A large south-facing window with low-E coating and argon fill will outperform a 1970s single-pane unit by a wide margin even at twice the glass area. What matters is specifying the right solar heat gain coefficient for the orientation. On Tiburon’s west-facing elevations, we lean toward a lower SHGC to keep afternoon sun from overheating the room. On north-facing glass that captures soft light, we’ll use a higher SHGC to maximize passive heating. We run the numbers for your specific elevation and give you the glass spec in writing before you order.
We tell you the truth up front: custom windows take six to fourteen weeks from order to delivery depending on the manufacturer line and the glass spec. That’s the reality whether you buy from us or anyone else. What we control is the schedule. We measure twice, order once, and register the order with the manufacturer the same week so the clock starts immediately. We also coordinate scheduling so that demolition doesn’t happen weeks before install; the openings stay weather-tight until the new units are on site. On Paradise Drive, we once replaced a 2008 aluminum sliding door whose multi-point lock had seized from salt corrosion and whose glass unit showed seal failure. We specified a marine-grade frame with low-E argon glass and adjusted the rough opening for operable casement side lites that kept the Angel Island view. The door took nine weeks to arrive. We told the homeowner that on day one, and the install landed on schedule.
Fog between the panes means the insulated glass unit’s seal has failed, and the argon or krypton gas has escaped. The window is no longer performing at its rated efficiency, and you can’t fix the seal; the glass unit has to be replaced or the entire sash or window replaced. In Tiburon’s humid climate, a failed seal also invites moisture into the frame cavity, which accelerates corrosion on aluminum frames. If the frames are still structurally sound, we can often replace just the glass unit at a lower cost. If the frames are pitted, you’re better off doing the full replacement with a marine-grade system. Call (888) 635-0804 and we’ll inspect the units and give you a straight answer on which path makes sense.
Why Tiburon Homeowners Build With TruePane
Along Paradise Drive and the Belvedere waterfront, we’ve replaced aluminum sliding doors installed as recently as fifteen years ago that had frames already pitting, weatherstripping rotted from salt humidity, and multi-point locks seized solid. That corrosion pace surprises contractors who spend most of their time in San Rafael or Mill Valley. It doesn’t surprise us anymore. On the Tiburon Peninsula, marine-grade specification is not an upsell; it’s the minimum standard for work that lasts.
Most of our Tiburon clients are not shopping for the cheapest bid. They’ve been in their houses for twenty or thirty years and they intend to stay another twenty. They want the work done right the first time, by a company that will still answer the phone if something goes wrong. That’s the promise TruePane has made since Dale Kessler wrote his founding rule on the whiteboard: if the pane is not true, the job is not done. We stand behind it, in writing, on every Tiburon install.
Call (888) 635-0804 to schedule your free estimate. A live person will answer.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Tiburon with custom windows and doors built to coastal standards.



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