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 Sausalito
Window replacement in Sausalito runs $850-$2,400 per window for most insert jobs, and $1,400-$3,800 per opening when full frame replacement is required. The final number depends on what’s behind the trim once we pull it: rot from decades of Richardson Bay fog, out-of-square rough openings on hillside lots, or the flex allowances a floating home needs. We answer the phone when you call. Our crews know every street from Bridgeway to Wolfback Ridge, and we’ll give you a written line-item quote before any work begins. Call (888) 635-0804 to schedule a free estimate.
Key Takeaways
- Most Sausalito insert replacements run $850-$2,400 per window; full frame jobs run $1,400-$3,800.
- Salt air off Richardson Bay means marine-grade hardware and fiberglass or aluminum-clad frames are baseline here, not an upgrade.
- Floating homes at Waldo Point Harbor require expansion clearances and flexible flashing that land-built homes do not.
- Historic downtown windows may need design review before we can pull a permit.
- Every job carries The Keystone Standard: both warranty layers registered in writing before the truck leaves.
Why TruePane Windows & Doors Is Sausalito’s Preferred Window Replacement Company
Dale Kessler founded TruePane in 2008 on one rule: if the pane is not true, the job is not done. That standard has carried us through more than years of combined glazing craft in the Bay Area, and it’s what Sausalito homeowners notice when our technicians walk the job before quoting it. We are not the fastest bid in the room. We are the last call you make.
Sausalito customers deal directly with background-checked, uniformed techs who measure every opening twice and put manufacturer lines side by side on paper. What you buy is what you see. Our Done Right Promise means if it’s not done right, we make it right, no paperwork fights and no fine print that covers neither. And our local crews know what this specific town throws at a window: salt, fog, steep lots, and a waterfront building type found almost nowhere else in the county.
We’ve replaced windows in the cottages off Caledonia Street, in mid-century hillside homes along Sausalito Boulevard, and on floating homes at Waldo Point Harbor. Each one teaches you something a shop over the hill in Mill Valley never learns. That’s the difference between a company that serves Sausalito and one that happens to drive through it.
Our Window Replacement Services in Sausalito
Full Frame Replacement
On Sausalito’s older homes, the window frame itself may be too far gone to save. Salt-air pitting on aluminum frames and rot in wood jambs are common within three to five years of Richardson Bay exposure when inferior materials were originally installed. Full frame replacement lets us pull the entire unit to the rough opening, rebuild or reframe as needed, and set a properly sloped sill pan so water drains away from the house rather than into it. In hillside homes near Wolfback Ridge, we commonly find rough openings that have drifted out of square after decades of slope settling, which makes the full frame route the only way to get a true, plumb install.

Energy-Efficient Upgrade
Fog is Sausalito’s weather, and fog is wet. An insulated glass unit with a degraded seal fogs from the inside and loses most of its thermal performance. We quote energy-efficient replacements side by side on paper: double-pane low-E, argon-filled, and warm-edge spacers from Andersen, Pella, Marvin, or Milgard, among others. For waterfront homes, we steer toward fiberglass or aluminum-clad frames rather than bare aluminum, because the marine layer eats unprotected metal faster here than anywhere else in Marin.

Historic Window Restoration
The Victorian and Craftsman cottages around downtown Sausalito fall under a different set of rules than mid-century hillside builds. If your home sits in the historic overlay district, window work often triggers design review before a permit issues. We’ve worked through that process enough to know what the reviewers look for: matching lite patterns, appropriate muntin profiles, and finishes that hold up without stripping original character. We handle the paperwork, the revisions, and the wait, so you are not left chasing a planner’s voicemail while your opening sits tarped in the fog. Historic restoration is the slower path, but on these houses it is the only right path.

Insert Window Replacement
When the existing frame is still square and sound, an insert replacement is the leaner job: a new window unit set into the existing frame. On Sausalito lots where access is tight and scaffolding shares space with a neighbor’s fence, insert work keeps staging minimal and the project moving. We see a lot of insert candidates in the mid-century hillside homes, where original wood frames are often sturdier than expected and only the sashes and glass have failed. The insert route typically saves 20-40% on labor over a full frame, but only works when the frame underneath deserves to stay.

What happens when you call
- 1
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 Sausalito
TruePane is an authorized installer for more than a dozen manufacturer lines, and for Sausalito homes we commonly quote side by side from PGT, CGI, ES Windows. Each line has different lead times, warranty durations, and glass packages. Rather than sell you on one, we put the numbers on paper and let you see the difference. Our local parts access keeps turnarounds tighter for Sausalito customers, and both warranty layers are registered in writing before the truck leaves your driveway. That’s The Keystone Standard, and it applies to every window we set.
Common Window Replacement Problems We See in Sausalito Homes
- Salt-air corrosion on frames and hardware. The daily marine fog off Richardson Bay bathes windows in salt-laden moisture. Bare aluminum pits and steel operators rust within three to five years, freezing sashes and snapping cranks. We specify marine-grade hardware and non-corrosive frames because Sausalito demands it.
- Tidal flex cracking seals on floating homes. Floating structures at Waldo Point Harbor move with tides and wakes. Installers using standard land-home clearances and rigid flashing put seals under stress from the day the window is set. We leave deliberate expansion clearances and use flexible flashing tape so the unit can move without failing.
- Out-of-square rough openings on hillsides. Homes cantilevered into steep slopes settle and shift over decades. A jamb that looks plumb from the outside can hide a rough opening that’s drifted an inch or more. Full frame replacement usually beats fighting the old geometry with shims.
- Permit delays from historic review. On tight lots near Bridgeway, a stalled permit means an exposed opening for weeks, and fog-driven moisture finds its way in during that wait. We sequence the work around review timelines and don’t pull a window until the permit is in hand.
Pricing for Window Replacement in Sausalito, CA
Here are honest numbers for Sausalito’s market. Insert window replacement typically runs $850-$2,400 per unit for standard double-hung or casement windows. Full frame replacement runs $1,400-$3,800 per opening, with the higher end reflecting marine-grade frames or extensive rot repair. Energy-efficient upgrades with argon-filled low-E glass add roughly $90-$220 per window over standard clear glass. Historic restoration work varies the most: replication sashes and custom muntin work can push a single opening to $2,500-$5,000, especially in the downtown overlay district.
What moves the number: whether we can reach the window from a ladder or need scaffolding, how far the rough opening has drifted, whether the home sits on land or water, and which manufacturer line you choose. We put every line item on paper before you commit, and we don’t add surprise charges after the work starts. A square deal is the only deal we offer.
Call (888) 635-0804 for an exact line-item quote on your windows. Estimates are free.
We Also Serve Cities Near Sausalito
If you own a home just over the hill, our Window Replacement crews cover Mill Valley, Corte Madera, Larkspur, and Kentfield as well. The fog and salt that define Sausalito don’t stop at the city line, and neither do we. For details on our full service area, visit our Window Replacement in Sausalito page or call (888) 635-0804.
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 - Window Replacement in Sausalito
Yes, most window replacements in Sausalito’s historic downtown require a permit, and many trigger design review through the city’s historic overlay district. If you’re swapping like-for-like sashes without changing the opening size, the path is simpler, but any visible change to lite patterns, frame material, or muntin profiles can send the application to design review. We manage that process end to end, including the paperwork and the waiting, because a permit in hand is the only way to avoid a stop-work order and a tarped opening in the fog. Call (888) 635-0804 and we’ll tell you exactly what your address will need before we quote.
Marine fog from the Pacific carries salt and moisture that sits on your window seals every day. Over time that saline moisture degrades the sealant bond along the spacer bar, which lets moisture into the airspace and fogs the glass from the inside. In Sausalito, we see IGUs fail years earlier than identical units in Mill Valley or Corte Madera, because the fog bank off Richardson Bay applies wet salt air daily, not seasonally. The fix is not just replacing the glass but choosing a unit with warm-edge spacers and marine-rated seal protection, matched with frames that won’t corrode out from under it. Call (888) 635-0804 for a free assessment of what’s failing and what it will take to fix it right.
Yes, and this is the single biggest Sausalito-specific install detail we handle. Floating homes at Waldo Point Harbor flex with tides and wakes, so a rigid install with standard clearances will stress any window until seals crack or sashes bind. We use flexible flashing tape at the rough opening and leave deliberate expansion clearances that would look sloppy on a land-built house but are exactly what a floating structure needs. On a recent Waldo Point job, we replaced a binding double-hung with an Andersen insert using these methods, and the new unit has cycled through two winters of tides without a seal failure. If you’re on the water, call (888) 635-0804 and mention that your home floats; it changes the spec and the quote.
Yes. Sausalito enforces noise ordinances that limit when loud work like demolition, sawing, and hammering can happen, and those hours are tighter than what unincorporated Marin allows. We schedule noisy phases within permitted hours and keep staging tidy on tight lots so your neighbors stay on your side. The restriction affects timing, not quality: we bid the job for the hours we can actually work, not the hours we’d like to. For an estimate that accounts for your street’s rules, call (888) 635-0804.
Side-by-side construction in Sausalito, especially in the denser pockets near Bridgeway and Caledonia Street, often means shared walls and party-wall considerations that a standalone house never deals with. Access is usually tighter, staging space is smaller, and any structural work at the rough opening may require neighbor notification or even shared-wall review. Those factors add labor hours and sometimes engineering time, and they show up honestly on a line-item quote. If you’re in an attached unit, call (888) 635-0804 and we’ll walk the access constraints before we price the job, so there are no surprises on the bill.
Call TruePane for Window Replacement in Sausalito
A live person answers our phone 24 hours a day, 7 days a week. Not a voicemail tree, not a callback form. When you call, you’ll speak with someone who knows Sausalito’s windows, its fog, its floating homes, and its permit process. We’ll schedule a free estimate, walk your property, and put a written line-item quote in your hand. The Keystone Standard covers every job we do, and the Done Right Promise means if it’s not done right, we make it right. Call (888) 635-0804 today.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving the San Francisco Bay Area since 2008.



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