Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Tiburon
Impact windows and doors in Tiburon run $900-$2,800 per opening installed, with large-format sliders and custom architectural units climbing higher. The work hinges on one thing most contractors miss: this peninsula eats standard aluminum for breakfast. Salt air from three sides pits frames, seizes multi-point locks, and rots weatherstripping years ahead of inland Marin schedules. We know because we’ve pulled units from Tiburon homes that looked decades older than their install dates. Call (888) 635-0804 and we’ll walk you through what your specific house actually needs.
Why TruePane Windows & Doors Is Tiburon’s Preferred Impact Windows & Doors Company
Tiburon homeowners tend to be skeptical of contractors who promise too much. Dale Kessler founded this company in 2008 because he was tired of seeing out-of-true installs and voided warranties passed off as normal. Over years in glazing, the family has learned that hillside work on the peninsula is a different animal than flat-grade Marin. Access is tighter. The glass is bigger. The corrosion is faster. And the homeowner asking questions is usually paying close attention.
Our Impact Windows & Doors crews work in Tiburon every week, from the mid-century homes on Reed Ranch Road up to the custom builds along Paradise Drive. We arrive when we say, measure every opening twice, and quote manufacturer lines side by side on paper so you see exactly what you’re buying. Live person answers the phone 24 hours a day, 7 days a week. Not a call center. A person who knows the difference between a shear wall requirement and a window schedule.
Every job carries the Done Right Promise. If the pane is not true, the job is not done. We register both warranty layers in writing before the truck leaves your driveway.
Our Impact Windows & Doors Services in Tiburon
Hurricane Impact Windows
Homes along the Belvedere waterfront and upper slope of Tiburon Ridge need impact glass that stops windborne debris, but more importantly, they need glazing that won’t delaminate from salt humidity in six years. We spec marine-grade aluminum, fiberglass, or aluminum-clad wood systems rated for coastal exposure. A typical impact window replacement in Tiburon runs $900-$1,700 per opening, depending on size and sightline profile. Large-format picture windows facing Angel Island or the Golden Gate push toward the higher end because the glass units carry more square footage and heavier structural requirements.

Impact Sliding Glass Doors
This is the big one in Tiburon, and it’s where we see the most failed installs. Almost every hillside or waterfront home here was designed around a deliberate bay view, which means the slider is doing double duty: holding impact rating and maximizing glass area with the slimmest possible frame. Aluminum sliders spec’d for inland Marin fail within 8-10 years from salt pitting, and once the jamb alignment goes, the door binds and the lock stops seating. We replace them with our Sliding & Patio Doors in Tiburon, using impact-rated sliders with fiberglass or marine-grade aluminum frames, low-profile sightlines, and stainless hardware. Expect to budget $2,400-$5,800 for a typical 8-12 foot impact slider in Tiburon, more for custom bronze-anodized frames or true divided lite muntins.

Impact Entry & French Doors
Entry doors facing the bay take direct salt wind on the weather side year-round. Painted steel holds up, but the hardware is usually the first casualty. We’ve seen multi-point lock bodies so corroded they wouldn’t throw a second bolt. Impact entry doors in Tiburon run $1,800-$4,200 installed, and our Glass Railing Systems in Tiburon complement French door systems that open onto a deck or garden starting around $3,600. We pull permits, pull the old frame back to the rough opening, and flash the jamb with corrosion-resistant tape so the new door doesn’t rot from the inside out.

Wind Mitigation & Code Compliance
California building code and local amendments have pushed wind-borne debris standards up on coastal exposures. Tiburon sits under the same wind-load maps as much harsher hurricane zones in the Southeast, but the enforcement and product requirements here often catch homeowners off guard during a remodel. We work directly with building departments, architects, and engineers to make sure the product is rated, the install is to spec, and the paperwork is clean at inspection. If you’re not sure whether a remodel requires impact glazing under current code, call (888) 635-0804 and we’ll walk you through it.

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 Tiburon
We’re an authorized installer for more than a dozen manufacturer lines, and on the peninsula we most often spec CGI, PGT for their coastal track records. We service and replace units from those lines and others, including CWS and ES Windows, and we stock the sealants, hardware, and flashing products that hold up to Tiburon’s salt air. If you have an existing impact unit from any major manufacturer that’s fogged, binding, or pitted, we can quote the repair or replacement with the correct OEM or equivalent components.
Common Impact Windows & Doors Problems We See in Tiburon Homes
- Salt-pitted aluminum frames and seized multi-point locks. Homes along Paradise Drive and the southern exposure take direct onshore wind. Marine-grade aluminum spec’d for Mill Valley or San Rafael fails years earlier here because nobody adjusted for the salt load.
- Fogged insulated glass units from seal failure. Salt humidity works the edge seals on impact glazing faster than dry inland climates. Once the argon escapes and moisture gets in, the unit loses insulating performance and the view goes cloudy.
- Delaminated wood-clad impact windows on southern exposures. The bottom rail takes the worst of it: direct sun on one side, salt humidity on the other. If the cladding separates, water gets behind it and the sash starts to rot.
- Flashing failures at the jamb. Standard flashing tape doesn’t hold against persistent salt-laden wind. We’ve pulled impact windows with intact glass but rotted jambs because the installer used inland-spec materials.
Pricing for Impact Windows & Doors in Tiburon, CA
Here’s what we currently see in Tiburon. A single impact window replacement runs $900-$1,700 per opening. Impact sliders span $2,400-$5,800 depending on width, frame material, and whether you’re doing custom sightlines. Impact entry doors land at $1,800-$4,200. French doors start around $3,600. Full-home packages on a typical 1960s hillside home can run $30,000-$70,000, and high-end custom builds with bronze-anodized frames, true divided lite muntins, and architect-specified glazing push well beyond that. The price is fixed in writing before we order anything. Not an estimate range that drifts. A written number. Call (888) 635-0804 for a free estimate and a line-item quote you can hold us to. The Tiburon market rewards specific numbers, and we give them.
We Also Serve Cities Near Tiburon
Our crews work Tiburon daily, and we also cover nearby areas including Parkway, Arden-Arcade, Ladera Heights, and Commerce. Customers in Impact Windows & Doors in Tiburon often refer neighbors and family across the bridge, and we’re glad to run the same crews and the same warranty terms in every one of those communities.
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 - Impact Windows & Doors in Tiburon
Direct line-of-sight to the bay. Paradise Drive and the Belvedere waterfront take unfiltered salt-laden wind from the west and southwest, while Mill Valley sits tucked behind the headlands with a lot of tree cover eating the wind before it hits glass. The chloride load on an exposed Tiburon frame is dramatically higher. Even marine-grade aluminum shows pitting within 8-10 years on a worst-case exposure, whereas the same product 10 miles inland might go 20 years before needing attention. We spec Custom Windows & Doors in Tiburon using fiberglass or aluminum-clad wood for those exposures because they shrug off salt better. Call (888) 635-0804 and we’ll look at your specific exposure and give you a straight answer on what survives it.
Yes, but the frame and the glass lamination have to be engineered together. True divided lites on a large-format impact window mean more frame material interrupting the glass, which affects the structural load path and the wind-borne debris rating. Some manufacturers won’t certify TDL muntins on the largest impact-rated units. Others will, but the price climbs because every lite bar has to carry impact loads. We’ll quote the specific size, orientation, and rating you need so you can see the difference on paper before you commit. The question isn’t whether it’s possible. It’s what it costs and whether it holds the rating you need for your exposure. We’ll give you the answer in writing.
Eight to twelve weeks is realistic for a custom bronze-anodized impact slider in Tiburon. Anodizing adds time at the extrusion stage. Large-format impact glass adds time at the lamination stage. Custom finish matching adds another pass. The labor doesn’t set the schedule; the supply chain does. We order the product the day the contract is signed, register the warranty paperwork before the truck rolls, and hold our install date through the whole lead time. If you’re working on a remodel schedule, call (888) 635-0804 early. The window and door order should be one of the first things locked in, not the last.
Short answer: you’re not required by flood-zone rules, but California building code and your insurer may disagree. Tiburon sits under coastal wind-load maps that treat windborne debris as a genuine structural risk, regardless of flood elevation. New construction and certain remodels on exposed lots require impact-rated glazing or shutters. Even when code doesn’t force it, some insurers in 94920 now price policies based on whether the glazing carries an impact rating. It’s a question of structural protection and insurance math, not just flood mapping. We’ll explain exactly what applies to your lot and your remodel, and we’ll pull the permit and pass the inspection.
Fog between the panes means the edge seal on the insulated glass unit has failed. The good news is the frame may still be sound. On many impact windows, the glass unit can be replaced without replacing the entire sash or frame. On others, the lamination and structural seal make glass-only replacement uneconomical. We inspect the unit, check the frame for salt pitting or deformation, and give you a repair-versus-replace number in writing. Most fogged units in Tiburon homes get replaced rather than repaired, and the cost runs $450-$900 per sash depending on glass type and frame. Call (888) 635-0804 for a free look.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Tiburon and the Bay Area since 2008.



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