Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across Tiburon
Window replacement in Tiburon runs $900 to $2,400 per opening for most full-frame work, with bay-view walls using large-format marine-grade glass landing between $2,500 and $6,000 per unit. That’s the honest range before anyone steps foot in your house. TruePane has worked Tiburon’s hillside streets long enough to know the real variable isn’t the window itself. It’s the salt air on three sides of the peninsula, the 1950s framing behind the drywall, and whether the permit inspector will flag anything once the opening is exposed. Call (888) 635-0804 and we’ll give you a straight answer, a written line-item quote, and a schedule we actually keep.
Why TruePane Windows & Doors Is Tiburon’s Preferred Window Replacement Company
We’re not the cheapest bid in Tiburon, and we don’t try to be. Dale Kessler founded TruePane in 2008 on a rule that still governs every job: if the pane is not true, the job is not done. Homeowners along Paradise Drive, in Belveron, and up in the hills around Trestle Glen call us because they’ve been burned before, by a fogged seal or a door that binds every July when the humidity spikes. They want the work done right the first time by a company that will still answer the phone in ten years.
Tiburon homeowners deal with a specific set of failures. Salt-laden onshore winds from San Francisco Bay pit standard aluminum frames and corrode multi-point door locks in half the time they’d last in San Rafael. We specify fiberglass, marine-grade aluminum, or aluminum-clad wood as the baseline here, including for Sliding & Patio Doors in Tiburon. Not as an upgrade. As the minimum that survives. Our technicians measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves your driveway. That’s The Keystone Standard, and it’s backed by our Done Right Promise. If it isn’t right, we make it right. No paperwork, no arguing.
We serve the entire Tiburon area from our San Francisco Bay Area office, with crews dispatched locally. A live person answers our phone 24 hours a day, 7 days a week. Not a voicemail tree. Not a callback form. You call, someone picks up.
Our Window Replacement Services in Tiburon
Full Frame Replacement
This is the job most older Tiburon homes eventually need. When the existing window comes out entirely, down to the rough opening, we see what’s actually been happening inside the wall. On hillside homes from the 1950s through the 1970s, that often means undersized framing, dry rot where salt spray wicked past failed flashing, and no insulation to speak of. We rebuild the opening square, flash it properly for Tiburon’s wind-driven rain, and set the new window so it drains the way it should. You get a true thermal break and a frame that won’t pit in ten years. And if the permit inspection triggers a code upgrade, we price it and get your written approval before we touch it.

Insert Window Replacement
When the existing frame is still structurally sound, an insert window replaces the sash and operating hardware without disturbing the interior trim or exterior siding. For many Tiburon homes with wood-framed picture windows that were never exposed to direct salt spray, this is the cleaner, less invasive option. We check the original frame carefully first. If there’s any pitting, rotting, or out-of-square settling, we’ll tell you straight and recommend the full-frame route instead. We’d rather explain the better path upfront than install an insert that fails in five years.

Energy-Efficient Upgrade
Bay-view glass is beautiful and expensive to heat around. Large walls of single-pane glass facing San Francisco, Angel Island, or the Golden Gate leak conditioned air constantly. We replace them with Energy-Efficient Windows in Tiburon-low-E coated, argon-filled insulated units that hold the view without making your HVAC run overtime. In Tiburon’s microclimate, the right glass package matters more than the frame material for thermal performance. We specify coatings by orientation so south-facing afternoon heat gain gets managed correctly, and we walk you through the numbers on paper before you commit. For homeowners replacing 20-year-old builder glass, the heating bill difference is noticeable the first winter.

Storm Window Replacement
Some Tiburon homeowners want to keep their original mid-century windows and add storm units for weather protection and sound deadening. We fabricate and install custom storm windows that match the sightlines of the existing frames. On exposed ridges and along the water where wind-driven salt spray is worst, a properly sealed storm unit can extend the life of the primary window by years. The key is marine-grade weatherstripping and hardware that won’t seize. We’ve pulled storm windows off Tiburon homes where the hardware was so corroded the units couldn’t be opened at all. Ours don’t do that.
For a full picture of what we do and how we price it, see our Window Replacement service overview.

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, including, PGT, and CGI. For Tiburon’s salt exposure, we often specify PGT or CGI impact-rated frames with marine-grade finishes, or Milgard’s fiberglass line where homeowners want zero-maintenance durability. We also service Ply Gem windows already installed in local homes. If you’re comparing brands, we’ll quote two or three side by side on paper so you can see the actual differences in frame material, glass package, and warranty terms. We stock common replacement hardware and sealed glass units for the brands we service, which means faster turnaround for Tiburon homeowners who need a sash replaced or a fogged unit swapped.
Common Window Replacement Problems We See in Tiburon Homes
- Pitted aluminum frames from three-sided bay exposure. Salt-laden wind off San Francisco Bay oxidizes standard aluminum faster than inland contractors expect. We regularly see frames installed 15 years ago with visible pitting and failing seals, especially along Paradise Drive and the Belvedere waterfront.
- Seized multi-point locks and corroded door hardware. Humidity and salt combine to lock up mechanisms that would last decades in San Rafael. When a sliding door won’t latch properly, it’s rarely the lock cylinder. It’s the internal rods and keepers corroded solid.
- Failed insulated glass units with fogging or lost argon fill. The first sign is condensation between the panes that doesn’t wipe away. On bay-facing walls, the constant temperature differential makes seal failure show up early. We replace the glass unit and address the frame condition that caused it.
- Water staining around window perimeters on otherwise intact installations. Hillside microclimates trap salt spray against flashing tape edges. The window looks fine from inside, but moisture has been working its way into the jamb. By the time the stain shows, the flashing has already failed.
Pricing for Window Replacement in Tiburon, CA
Here’s where Tiburon pricing actually lands. A standard full-frame replacement in a mid-century home runs $1,200 to $1,800 per window for a quality vinyl or fiberglass unit. Aluminum-clad wood windows with marine-grade finishes start around $1,800 and go to $3,200 per opening. Large-format bay-view windows, the kind that frame the Golden Gate from a living room wall, run $2,500 to $6,000 each depending on glass specifications and whether structural work is needed in the rough opening. Insert replacements typically cost 20 to 30 percent less than full-frame work on the same opening.
What moves the quote in Tiburon: the condition of the original rough opening, whether the house is on a steep lot that complicates staging, and what the permit inspection requires once walls are open. We write allowances into the contract for framing repair and code upgrades, and any surprise gets priced and approved by you in writing before we touch it. Call (888) 635-0804 for a free estimate with all of this in plain numbers.
We offer a free written repair estimate and a permanent 5% discount for seniors and veterans.
We Also Serve Cities Near Tiburon
TruePane handles window replacement throughout Marin, including Window Replacement in Tiburon and the surrounding communities. If you’re in Parkway, Arden-Arcade, Ladera Heights, or Commerce, the same crew standards and The Keystone Standard apply. Call (888) 635-0804 and we’ll confirm scheduling for your area.
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 - Window Replacement in Tiburon
Tiburon is a peninsula flanked by San Francisco Bay on three sides, which means salt-laden onshore winds hit your windows from multiple directions instead of just one or two. That constant exposure oxidizes standard aluminum frames and corrodes door hardware in roughly half the time it would take just 10 miles inland. If your home sits along Paradise Drive or on a ridge with direct bay exposure, figure 15 years is a realistic service life for basic aluminum frames. Marine-grade aluminum, fiberglass, or aluminum-clad wood is the baseline we recommend for any replacement in Tiburon, including Glass Railing Systems in Tiburon.
Older hillside homes in Tiburon often need additional work once the rough opening is exposed. Depending on the age of the house and the scope of the permit, you may be required to bring the opening up to current structural standards, add thermal break requirements, or upgrade flashing and waterproofing to comply with current building codes. We’ve seen jobs where the inspector required shear wall upgrades on a steep lot. We handle this by writing an allowance into the contract, doing an inspection first, and getting your written approval before any additional work starts. The quote you sign is the price you pay unless you approve a change in writing.
The most common sign is persistent fogging or condensation between the panes that won’t wipe clean. You might also notice the glass feeling colder on winter mornings compared to neighboring windows, or a slight bowing of the glass surface. Once the argon has leaked out, the thermal performance drops noticeably, and your heating system works harder in the winter. If you see any of these signs in a Tiburon home, the seal has failed. The fix is replacing the glass unit itself, and we’ll also inspect the frame for the corrosion that caused the seal to fail in the first place.
Fiberglass, marine-grade aluminum, or aluminum-clad wood. Anything less will pit and corrode within a decade given your exposure. Standard vinyl can work for inland openings, but on bay-facing walls the constant salt spray and UV exposure will shorten its life. We specify the frame by orientation and exposure, not by what’s cheapest. A window that faces San Francisco Bay across open water needs better hardware and finishing than a window on the sheltered side of the house. We’ll show you the difference side by side on paper before you choose.
If the frame itself is still square and structurally sound, a sash-only or insert replacement can work. But if the frame has pitted to the point where moisture has reached the jamb, or if there’s rot or out-of-square settling from the hillside, a sash replacement won’t last. We’ve pulled full-frame replacements on Tiburon homes where the visible sash looked fine but the hidden jamb was crumbling. The only way to know for certain is an inspection of the rough opening. Call (888) 635-0804 and we’ll take a look, give you an honest recommendation, and quote both options if they’re viable.
Call TruePane for Window Replacement in Tiburon
Replacing windows on a Tiburon hillside home isn’t a job for someone learning the trade. It’s a job for a company that knows the salt air, the steep lots, the permit process, and the difference between a window that looks good at install and one that’s still true twenty years later. TruePane has been doing this since 2008 through Dale Kessler’s glazier heritage and a standard that puts the warranty in writing before we leave. Call (888) 635-0804 for a free estimate. We’ll measure, quote, and explain the options in plain language. And when the job is done, if the pane is not true, the job is not done. We’ll come back and make it right.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Tiburon and the surrounding communities since 2008.



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