Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Tiburon
Window installation in Tiburon comes down to two things: keeping your view of the Bay and keeping the salt air from destroying the work. Most replacement window projects here run $900-$2,800 per opening installed, with view-facing picture windows and marine-grade casements at the higher end. We know the difference between what works on a hillside off Paradise Drive and what fails in six years near the water. Westlight Windows & Doors serves all of Tiburon, from Old Town to Paradise Cay, with a written price before any work starts. Call (903) 354-7134 for a free estimate.

Why Westlight Windows & Doors Is Tiburon’s Preferred Window Installation Company
Tiburon homeowners don’t ask for cheap. They ask for work that doesn’t corrode, fog, or bind three seasons in. That’s the standard we build to. We’re an independently owned and operated Kingswell location, founded in 2009, and we carry eight manufacturer lines so the product matches the exposure, not the other way around. Owen Satterfield leads our team, and the same crew that measures your windows is the crew that installs them.
We answer our phones with a live person, 24 hours a day. When a Tiburon homeowner calls about a failed seal above the waterline, they talk to a human who can schedule, quote, or troubleshoot right then. Every job comes with the Kingswell Guarantee: a written price before the work begins, a committed arrival window, a clean job site, and a written guarantee on the finished installation. If it’s not right within 365 days, we come back and fix it at no charge.
Casement Windows in Tiburon
Casement windows in Tiburon carry a specific job description: hinge-side operation on a crank, full glass area for bay views, and seals that have to stop salt-laden wind. Most homeowners choose casements here because they seal tightest when closed and open wide to catch the afternoon west light off Richardson Bay. Expect $1,100-$2,600 per casement installed, depending on size, frame material, and hardware class. For anything within a few hundred feet of the water, we specify stainless steel hinges and operators as the baseline, not the upgrade.
ViewLux Fiberglass Casements for Waterfront Exposure
Fiberglass doesn’t corrode. Aluminum does. That’s the short version. In Paradise Cay, our crew replaced original aluminum single-pane picture windows in a 1960s waterfront home with ViewLux fiberglass casement windows using a laminated glass interlayer and stainless steel hardware. The existing frames had pitted operators and failed seals from decades of direct bay salt. Six months later, the homeowner reported zero condensation and smooth operation through the full bay breeze season.
Architect Coordination on Custom Casements
High-end Tiburon remodels routinely involve an architect or designer specifying casement profiles that match existing trim or millwork. We coordinate directly with them. It means matching sightlines, mullion widths, and paint-grade finishes before the order goes to the manufacturer. That coordination happens in writing, and your price is fixed before anything gets ordered.
Double Hung Windows in Tiburon
Double hung windows in Tiburon are the quiet workhorse of the mid-century hillside homes built from the 1950s through the 1970s. Where casements handle the big view walls, double hungs handle bedrooms, kitchens, and secondary elevations that still catch salt air but don’t need a crank. Expect $900-$1,900 per double hung installed, with wood-clad and fiberglass options at the higher end. The common failure we see is sash binding from pitted hardware and weatherstripping that’s gone stiff from salt and sun.
Retrofit Double Hungs for Older Jamb Depths
Many Tiburon homes have non-standard jamb depths because so much of the framing was custom-built for original aluminum units. We don’t force a standard replacement into a jamb that won’t take it. We measure the pocket, spec the right jamb extension, and write the price before ordering. No door-step revisions. No surprised change orders.
Energy Performance Without Losing the View
Double hungs on bay-facing walls don’t need to be dark to be efficient. We spec low-e glass (a thin coating that reflects heat back into the room in winter and out in summer) that keeps the view clear and the SHGC reasonable. The goal isn’t to shrink your glass. It’s to make the glass you already love work harder thermally.

Trusted Brands We Service in Tiburon
We install PGT impact-rated windows for Tiburon homeowners who want serious wind and debris protection without sacrificing sightlines, and CGI for the same reason in heavier exposure zones. CWS rounds out our offering where a project calls for a specific architectural profile. Because we stock parts locally and coordinate directly with manufacturers, a Tiburon homeowner gets faster turnaround on replacement sashes, operators, and balances than someone waiting on a warehouse in another state. We don’t force one brand on every job. We match the brand to the exposure, the elevation, and the architect’s spec. See our full Window Installation service details.
Common Window Installation Problems We See in Tiburon Homes
- Corroded aluminum frames on waterfront properties. Homes in Paradise Cay and along the lower waterfront show frame oxidation within five to seven years. Standard aluminum-clad windows simply can’t take sustained salt-laden air without pitting and failing.
- Sprung seals and fogged IGUs on view glass. Single-pane and early double-pane picture windows fail thermally after decades of direct sun and salt. You’ll see fog between the panes first, then higher heating bills.
- Binding operators and hinges. Casement and double hung windows on the bay side get pitted hardware that makes cranking and sliding feel like a workout. In a few seasons, the window won’t seal at all.
- Rot and paint failure near Old Town and Ark Row. The older wood-frame structures closer to the water see accelerated jamb and sill rot from bay moisture working into improperly flashed openings. Water gets in at the sill detail and stays there.
Pricing for Window Installation in Tiburon, CA
Window installation in Tiburon runs higher than inland Marin because the material spec has to be better. A standard double hung replacement runs $900-$1,900. Casements run $1,100-$2,600. A large view-facing picture window or three-panel slider can run $2,200-$5,000 installed, depending on glass package and frame material. Fiberglass frames with stainless hardware cost more than aluminum-clad, and in Tiburon, that difference is usually the difference between a 30-year window and a 7-year window. Every quote we give is written. Every price is fixed before we order. If the work fails within 365 days, we come back and fix it at no charge. That’s the Kingswell Guarantee, and every customer gets it in writing. Call (903) 354-7134 to schedule your free estimate.
We Also Serve Cities Near Tiburon
Westlight’s crews serve the wider Bay Area, including Tiburon and nearby cities like Los Angeles, San Diego, San Jose, and San Francisco. If you own a home in any of these areas and need window installation with a written price up front, call the same number and talk to the same people. We coordinate scheduling from our San Francisco Bay Area office and dispatch locally.
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 About Window Installation in Tiburon
Tiburon’s salt air corrodes aluminum frames, pits hardware, and fails IGU seals significantly faster than inland Marin towns like Fairfax or San Anselmo. For any home within a few hundred feet of the water, we treat marine-grade fiberglass frames with stainless steel hardware as the minimum baseline, not a premium upgrade. Standard aluminum-clad shows oxidation within five to seven years. Call (903) 354-7134 for a material recommendation specific to your home’s elevation and exposure.
Yes. The answer is low-e coatings and laminated glass interlayers that improve thermal performance without darkening or shrinking the glass area. We’ve done exactly this in Paradise Cay on a 1960s waterfront home, where ViewLux fiberglass casements with low-e glass outperformed the original single panes while preserving the same sightlines. Call (903) 354-7134 for a free estimate on your specific glass package.
Most custom window orders for Tiburon projects run six to ten weeks from final measurement to delivery, depending on the manufacturer and the finish schedule. Lead time, not labor, is what sets the calendar on high-end work here. That’s why we lock every price and every spec in writing before ordering. Once the order is placed, your number doesn’t move. Call (903) 354-7134 and we’ll walk you through a realistic schedule for your project.
Most Tiburon homes do not require impact-rated glazing by code, but bay-facing exposures and hillside elevations can benefit from impact-rated products like PGT or CGI when you want real wind and debris protection. The call depends on your elevation, your distance from the water, and your budget. We carry both brands and will give you a straight recommendation. Call (903) 354-7134 for a free estimate.
We work directly with your architect or designer from the first measurement through final walkthrough. That means matching custom millwork profiles, mullion widths, and finish callouts before the order goes to the manufacturer. Every detail is documented in writing, and the price is fixed before anything is fabricated. Call (903) 354-7134 to start the conversation.
Written by Owen Satterfield, Owner at Westlight Windows & Doors, serving Tiburon since 2009.










Before
After
Before
After
Before
After