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 Sausalito
Custom windows and doors in Sausalito typically run between $1,800 and $14,000 per opening depending on size, frame material, and whether the home sits on a hillside or floats on the bay. Most custom jobs in 94965 are completed within two to four weeks of the final site measure, and TruePane has crews working in Sausalito every week. If you’re in Sausalito and need a straight answer on replacement windows, a custom picture window sized for a bay view, or a floating-home window that won’t bind with the tides, call us at (888) 635-0804. We’ve spent years learning what this salt air does to glazing, and we specify materials accordingly. Not the inland spec. The marine spec. There’s a difference, and on Richardson Bay it decides whether your window lasts eight years or thirty.
Key Takeaways:
- Sausalito’s salt fog destroys standard window hardware in 18 to 36 months. We specify 316 marine-grade stainless or hot-dip galvanized hardware as the baseline on every bay-facing opening.
- Floating homes on Waldo Point Harbor require flexible installation techniques and deliberate expansion clearances that land-built homes never need.
- Custom window pricing in Sausalito starts around $1,800 for a modest single opening and climbs to $14,000 and beyond for oversized picture windows, curtain walls, and impact-rated glazing.
- Every job carries the Done Right Promise and The Keystone Standard, with both warranty layers registered in writing before we leave your driveway.
Why TruePane Windows & Doors Is Sausalito’s Preferred Custom Windows & Doors Company
The first thing to understand about Custom Windows & Doors in this town is that Sausalito is not Mill Valley. The fog that rolls through the Golden Gate every afternoon carries salt straight across Richardson Bay and onto your window frames, your hinges, your glazing beads, and your insulated glass seals. We see the result every month: pitted aluminum, rust-pocked stainless hardware that was never really marine-grade to begin with, and fogged dual-pane units on homes that are only six or seven years old. The fix is never just a swap. It’s a specification decision made by someone who knows what this specific stretch of coastline does to fenestration.
TruePane Windows & Doors was founded in 2008 by second-generation glazier Dale Kessler, but the craft line runs back years. Dale’s rule, still on the whiteboard in our shop, is the same one that named the company: if the pane is not true, the job is not done. That rule matters more in Sausalito than almost anywhere else we work. A window that’s out of true on a floating home will bind. A window that’s out of true on a hillside cottage will leak air and rack the sash. Our technicians measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves the driveway. That’s the Keystone Standard, and it’s not optional.
We’re not the cheapest bid in Sausalito, and we don’t try to be. We’re the company you call after the cheap bid failed. We hire local, train apprentices into journeymen, and answer the phone with a live person 24 hours a day, seven days a week. When a Sausalito customer calls at 7 p.m. on a Tuesday because their bay-facing sliding door just started whistling in the wind, a human picks up. That’s the kind of company that plans to be in town in thirty years.
Our Custom Windows & Doors Services in Sausalito
Custom Shape Windows
Arched, round-top, hexagonal, rake-head, eyebrow, and trapezoid windows are all common in Sausalito’s Victorian and Craftsman cottages near the historic downtown, and each one is a one-off. There’s no stock size for a 1912 round-top with a 30-inch radius. We pattern, order, and install custom units built to the exact rough opening. On bay-facing elevations, we specify aluminum-clad wood or fiberglass frames with marine-grade hardware from the start, because bare aluminum and fusion-welded vinyl develop pitting and chalk-like corrosion along the jamb within three to four years in this salt fog. Pricing for a custom shape window in Sausalito typically runs $2,200 to $6,800 installed, depending on the geometry and glass package.

Oversized Glass Panels
Hillside homes on Sausalito’s steep streets, from the Caledonia corridor up toward Wolfback Ridge, are built around the view. That means large fixed picture windows and floor-to-ceiling glazing that require structural engineering and often a crane or a two-man carry up a switchback. We’ve set oversized panels that weigh over 400 pounds on a hillside that never gives the truck a flat surface. On floating homes, oversized fixed panes have a different problem: the platform flexes with tidal movement and boat wakes, so a rigidly set panel will crack its IGU seal prematurely. We leave the expansion clearances that land-built homes never need. Oversized glass panel installation in Sausalito generally runs $4,500 to $14,000 per panel, depending on glass size, glass type, and access.

Curtain Wall Systems
For Sausalito’s waterfront homes and small commercial spaces, curtain wall systems deliver the widest uninterrupted glass you can get. These are the floor-to-ceiling framed glass walls you see on modern bay-view residences and a few boutique storefronts along Bridgeway. The load on a curtain wall in Sausalito is not just the glass. It’s wind shear off the bay plus salt-laden moisture working on every mullion. We use structural silicone glazing with marine-rated extrusion finishes, and we seal every joint like the fog is coming because it is. Curtain wall projects in Sausalito typically start around $12,000 and run up from there based on elevation, wind load, and the number of lites.

Architectural Grilles & SDLs
Simulated divided lites and architectural grilles are what make a modern energy-efficient window look right in a 1920s Sausalito cottage or a Craftsman bungalow off Caledonia. We install true SDLs with internal spacer bars so the grille pattern reads authentically from both sides and never rattles in the wind. For homeowners who want the historic look with modern glass performance, SDLs are the answer that vinyl grids never quite deliver. Grille and SDL work is typically a quoting add-on to a full window replacement, but we also retrofit existing frames. The upcharge for true SDLs in Sausalito generally adds $180 to $420 per sash, depending on the pattern and the manufacturer.

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 Sausalito
TruePane is an authorized installer for more than a dozen manufacturer lines, including CGI impact-rated windows and doors, ES Windows architectural series, CWS, and ECO Window Systems. We quote side by side on paper so you see exactly what you’re buying and why one line costs more than the other. For Sausalito customers, that side-by-side matters because not every manufacturer’s coastal spec is the same. Some offer better marine-grade hardware as factory standard. Some charge extra. We show you the difference in writing, not in a verbal handwave. Because we stock local parts for Sausalito zip code 94965, we can often turn around service calls on existing windows without waiting on a manufacturer shipment.
Common Custom Windows & Doors Problems We See in Sausalito Homes
- Salt-fogged dual-pane units. The daily marine layer here carries salt particles that work their way into perimeter seals. An IGU that would last 20 years in Kentfield can fog in seven years on a Richardson Bay-facing elevation. The tell is a milky haze between the panes or water droplets you can’t wipe off from either side. Once the seal fails, the argon fill escapes and the U-factor climbs, so your heating bill tells the same story as your view.
- Rusted window hardware on hillside homes. Stainless-steel hardware that looked fine at installation develops rust pitting within 18 months because the original installer used inland-spec screws and hinges. We specify 316 marine-grade stainless or hot-dip galvanized hardware on every bay-facing opening. Not as an upgrade. As the floor.
- Binding sashes and cracked seals on floating homes. Waldo Point Harbor’s floating platforms flex with every tide change and every wake from a passing ferry or fishing boat. A window installed rigidly against that movement will bind, rack, or crack its insulated glass seal. Floating homes need flexible flashing membranes and a deliberate expansion gap around the frame, typically 1/4 inch on all sides. That would be considered sloppy on a land-built home in Marin County. On the water, it’s the only thing that works.
- Pitted aluminum and failed welds on custom shape windows. Bare aluminum frames with fusion-welded corners look clean for the first year, then the salt air starts eating the finish. We see chalk-like corrosion along the jamb within three years on bay-facing elevations. The fix is not a patch. It’s a replacement with aluminum-clad wood or fiberglass frames, which cost more up front and far less over twenty years.
Pricing for Custom Windows & Doors in Sausalito, CA
| Service | Typical Range in Sausalito | What Moves the Price |
|---|---|---|
| Custom shape window (single unit) | $2,200 - $6,800 | Geometry, frame material, glass package, access |
| Oversized fixed picture window | $4,500 - $14,000 per panel | Panel size, glass type, hillside access, structural requirements |
| Floating-home window replacement | $1,800 - $5,500 per opening | Flexible installation method, marine hardware, platform access |
| Curtain wall system | $12,000 - $40,000+ | Elevation height, wind load, lite count, structural glazing |
| Architectural grilles / SDLs (add-on per sash) | $180 - $420 per sash | Pattern complexity, muntin profile, material |
The honest truth about Sausalito pricing is that the marine-spec version of a window costs 20 to 35 percent more than the inland-spec version. A bay-facing picture window in aluminum-clad wood with 316 stainless hardware might run $5,800 where a vinyl window with standard hardware comes in at $4,200. The cheap spec is not cheaper over a decade. It fails early, you pay for replacement, and you live with fogged glass and a rusted latch for two years first. Our estimates are free, written, and line-itemed. Call (888) 635-0804 and we’ll walk the job with you before we quote a single number.
We Also Serve Cities Near Sausalito
TruePane’s crews run to Mill Valley, Corte Madera, Larkspur, and Kentfield every week, and we take the same marine-spec approach on every bay-influenced elevation. The fog line doesn’t stop at the Sausalito city limit. If you’re in a neighboring town and want a window company that already knows your microclimate, call us at (888) 635-0804. We’ll be there when we say.
Serving Sausalito, CA - Our Local Coverage Area
We’re based in the Sausalito 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 Sausalito
Floating homes on Waldo Point Harbor move constantly because the platform flexes with tidal changes and boat wakes, so a window installed rigidly against that movement will bind its sash and crack its insulated glass seal within a few years. Floating-home installations need flexible flashing membranes and a deliberate expansion clearance, typically 1/4 inch on all sides, that would be considered sloppy on a land-built home. If your floating home’s windows were installed by a company that doesn’t do waterfront work regularly, the seals are probably already compromised. Call (888) 635-0804 for an estimate; we’ll tell you what needs to come out and what can be saved.
Aluminum-clad wood or fiberglass. Bare aluminum pits and chalks within three years in Sausalito’s salt fog, and fusion-welded vinyl develops corrosion along the jambs even faster on direct bay-facing elevations. Aluminum-clad wood gives you the wood’s interior warmth plus a marine-grade exterior cladding that shrugs off the salt, and fiberglass does the same with even less thermal movement. We quote both lines side by side on paper so you can see the exact pricing difference and decide with the numbers in front of you.
Look for a milky or hazy film between the glass panes that you cannot wipe off from either side, or visible water droplets inside the unit on foggy mornings. A failed seal means the argon or krypton fill has escaped, so the window loses its insulating gas and the U-factor drifts up. On hillside homes, the south and west-facing picture windows facing the Golden Gate are the first to fail because they catch the brunt of the daily marine layer. If you’re seeing fog you can’t wipe away, the unit is done. Call (888) 635-0804 and we’ll confirm it on site and quote the replacement.
Yes. We’re an authorized installer for CGI impact-rated windows and doors, and we regularly install impact-rated custom picture windows and oversized glass panels on Sausalito homes. Impact-rated glazing here is not only about storm protection; it’s also a meaningful upgrade in a town where salt air, heavy wind shear off the bay, and the marine layer all work on the building envelope year-round. Impact-rated units carry a heavier, more robust IGU construction that holds its seal longer in Sausalito’s environment. Expect to pay roughly 15 to 25 percent more than a standard insulated unit, and expect the unit to outlast it.
The salt air finds every seam. On a custom shape window in a 1920s cottage, the vulnerable points are the corners where the frame members meet, the glazing bead, and the hardware. Salt-laden fog sits on those surfaces daily, and if the original frame is bare aluminum or an old wood frame with failing paint, the corrosion starts inside the joints where you can’t see it. We regularly pull custom shape windows out of older Sausalito homes and find the exterior looked acceptable while the interior hardware was rust-frozen. The fix is marine-grade hardware and a properly sealed, clad frame from installation day. Call (888) 635-0804 for a free estimate on any custom shape window that’s showing its age.
A Field Note From Waldo Point Harbor
We replaced a large fixed-pane picture window on a Waldo Point Harbor floating home where the insulated glass unit had fogged between the panes. The seal failed within four years because the original installer set the frame rigidly against the flexing platform, and every tide change was working the IGU like a slow-motion hinge. Our crew pulled the sash, specified a fiberglass frame with argon fill and low-E glass, and left a 1/4-inch expansion gap on all sides with flexible flashing tape before trimming out. The new unit has tracked straight through two years of tide and wake cycles, and the homeowner told us she stopped hearing the window “creak” at night. The cheap install failed. The right install is still straight. That’s the whole point of this page, and the whole point of TruePane.
If you own a home in Sausalito, whether it’s a hillside cottage off Caledonia, a mid-century modern with a full bay view, or a floating home on the water at Waldo Point, the windows and doors you install now will either be built for this environment or they won’t. The salt air doesn’t compromise. The tides don’t stop. And a window that can’t handle either will cost you twice.
Call (888) 635-0804 to schedule your free estimate. A live person answers, 24 hours a day, seven days a week. We’ll measure every opening twice, put the quote in writing, and register both warranty layers before the truck leaves your driveway. If the pane is not true, the job is not done. That’s the standard in Sausalito.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Sausalito and all of Marin County.



Before
After
Before
After
Before
After