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 Inverness
Window replacement in Inverness runs $700 – $1,900 per window installed for most single-unit jobs, with full-frame replacements on 1920s cottages landing between $1,300 – $2,400. The honest range depends on jamb condition, glass package, and whether your home falls inside the Point Reyes National Seashore boundary. That last point changes the permit path before the first screw turns, and most Inverness homeowners don’t find out until a plan lands on the wrong desk. We know the local permitting reality because we’ve pulled it apart job by job. Call (817) 686-2228 to get your written estimate started.

Key takeaways for Inverness homeowners:
- Marine-layer humidity and salt fog attack wood jambs and aluminum hardware faster here than anywhere else in Marin County.
- If your home sits in the seashore’s pastoral zone, your permit needs National Park Service design review – plan three to six weeks for this step.
- We price the full scope in writing before work starts, including jamb repair discovered during removal.
- Every install carries our 365-Day Done Right Promise in writing. If it fails, we return at no charge.
Why Meridian Windows & Doors Is Inverness’s Preferred Window Replacement Company
We work on homes along Sir Francis Drake Boulevard, around the Inverness Yacht Club, and up into the ridge pockets where the fog sits longest. A meridian is a fixed line you measure everything against. That is what the name means and how we run every install here: consistent, precise, and documented. Our Window Replacement team operates inside the Garrison Partners family, held to The Garrison Standard since 2009. That standard is not a slogan. It means background-checked, uniformed technicians show up on time, the price goes on paper before work begins, and the written guarantee has no labor-exclusion carve-outs.
Inverness customers deal with the same crew from first look to final caulk. The phones are answered by a live person 24 hours a day, every day, including the weekends when the Bolinas ridge fog rolls in and a failed sash seal gets noticed. We stock local parts for Inverness jobs and schedule around the permit calendars. Elliot Vance leads the team and reviews every coastal project scope personally before it goes out, including our Patio Door Installation in Inverness.
Window Glass Replacement in Inverness
Window Glass Replacement in Inverness means swapping a failed insulated glass unit, or IGU, without tearing out the entire frame. Fogged glass, mineral-etched panes, and impact cracks are the most common calls we get from homes between the seashore boundary and the Inverness Ridge. Salt-laden fog condenses on aging seals, the seals break down, and the space between the panes turns milky. The glass is not cleanable once that happens. It gets replaced.
Most Inverness glass replacements run $350 – $800 per IGU, including removal, new glass, and re-glazing. Impact-rated glass from CGI or ES Windows typically lands higher, and coastal lead times add a few days for specialty laminates.
Signs the glass needs replacing
If you see condensation between panes that doesn’t wipe off, that is a failed seal. If the glass feels cold or hot to the touch even with the sash closed, the insulating gas is gone. If the view toward Tomales Bay looks permanently hazy through the glass on a clear day, the unit has failed. Once condensation etches the interior surface permanently, the IGU cannot be restored.
What the job involves
We remove the old glazing stops, pull the failed IGU, and set the new unit with fresh bedding. For classic Inverness wood windows, we inspect the glazing rabbet for rot while the glass is out. That is the moment we catch the hidden damage that coastal moisture left behind.
Call (817) 686-2228 for an exact glass replacement quote. Estimates are free, and the price is on paper before we touch the unit.
Window Sash Replacement in Inverness
Window Sash Replacement in Inverness means rebuilding or replacing the moving part of the window, the frame that holds the glass, while leaving the surrounding jamb in place. Here on the Point Reyes Peninsula, salt air corrodes the aluminum hardware on sashes faster than anywhere else in Marin. We routinely open Inverness windows where the sash locks have seized, the balances have failed, and the bottom rail has started to powder at the corners.
Sash replacements run $500 – $1,100 per unit for standard vinyl or wood sashes, depending on size and glass package. Full sash replacement with impact-rated glass and new hardware lands toward the higher end, especially on large double-hungs on waterfront-facing elevations.
Why the sash fails in Inverness
Fog and marine moisture do not dry out of the wood the way they would in Petaluma or Novato. The jamb holds the moisture, the sash rubs, paint fails, and the hardware corrodes. When we remove a sash here, we check the jamb liner and the sill condition before the new unit goes in. That prevents a straight sash swap from becoming a bigger job later.

Common hardware we replace
Sash locks, pivot bars, tilt latches, and spiral balances are the usual failures on Inverness double-hungs. We keep common hardware in stock for our coastal service routes, so a sash that will not stay up gets addressed on the first visit with the right parts, not a temporary patch.
Trusted Brands We Service in Inverness
We are authorized to install and replace products from CGI, CWS, and ES Windows, three of the eight manufacturer lines in our portfolio. For Inverness homes near the shore, we frequently spec CGI impact-rated casements because they stand up to wind-driven salt spray better than standard aluminum. ES Windows gives us clean architectural lines for mid-century ranches along the ridge. CWS covers the budget-conscious vinyl replacements in the flatter pockets away from the water. Because we stock local parts for Inverness customers, turnaround on service is faster than ordering from a distributor across the bay.
Common Window Replacement Problems We See in Inverness Homes
- Rotted jambs discovered only after removal. Marine-layer humidity keeps the sills damp long after the fog burns off. We find soft wood behind original 1920s sashes more often than not. Our written estimate includes a jamb-repair allowance so the price does not move once we open the wall.
- Salt-fog corrosion on aluminum sash hardware. Locks and balances seize within a few years on exposed elevations. We replace them as part of the sash scope when they fail, not as a separate surprise line item.
- Failure of original single-pane glass in seashore-zone homes. Homes inside the National Seashore boundary often have original 1920s or 1930s single-pane units that cannot meet fog-belt durability. Upgrading to low-E insulated glass units, essentially two panes with a reflective coating that keeps heat in, is the most common scope we write here.
- Permit stalls on pastoral-zone design review. We flag the Point Reyes National Seashore review layer before the estimate is finalized. That keeps your install off the rainy-season calendar, which matters when wet flashing work is riskier.
Pricing for Window Replacement in Inverness, CA
A typical full-frame replacement in Inverness runs $1,300 – $2,400 per window. An insert replacement, where the new window fits inside the existing frame, runs $700 – $1,400. Glass-only replacement lands between $350 – $800 per unit. Sash-only work runs $500 – $1,100 per window. The cost drivers are jamb repair, impact-rated glass, and lead times on coastal-rated products. If your home is inside the seashore boundary, the permit process adds time but not hidden cost, assuming the design review is filed correctly the first time. We deliver a written price before any work starts. Call (817) 686-2228 to schedule a free estimate.
We Also Serve Cities Near Inverness
Our Window Replacement in Inverness crews serve homeowners across Marin County, including Petaluma, Novato, Cotati, and Fairfax. If you are a few miles outside Inverness, the same written pricing and 365-Day Done Right Promise apply. Dispatch and scheduling are coordinated from our Los Angeles office, and crews handle Inverness jobs locally.
Serving Inverness, CA - Our Local Coverage Area
We’re based in the Inverness 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 Replacement in Inverness
Yes, Inverness window replacements require a building permit, and if your home sits within the Point Reyes National Seashore boundary, the plan often needs National Park Service design review through the pastoral-zone process. We handle the paperwork and file it correctly the first time, which keeps the calendar from slipping. Call (817) 686-2228 and we will confirm what applies to your house.
Inverness sits directly in the marine fog path off Tomales Bay, so wood sashes stay damp longer than they do in Cotati or Fairfax, and salt haze accelerates the rot. We inspect sill and header condition before ordering windows because hidden dry rot is common once the old units come out. Estimates include the repair scope so the price stays honest.
We service and replace CGI, CWS, and ES Windows, along with the other lines in our portfolio. For coastal Inverness homes, we often recommend CGI for impact-rated strength against salt spray, and ES Windows for clean architectural lines. Parts for these systems are stocked locally for faster turnaround.
Yes. If the frame and jamb are sound, we replace the failed insulated glass unit or the sash and hardware and leave the surrounding structure alone. Glass replacement runs $350 – $800 per unit; sash work runs $500 – $1,100 per window. We only recommend full-frame scope when the jamb itself is compromised, which happens frequently in older Inverness cottages.
A standard single-window replacement takes one day on site once materials are in. Multiple windows take two to four days depending on the scope. Permit review inside the seashore boundary can extend the overall timeline by three to six weeks, which is why we start the file early. Call (817) 686-2228 for a written timeline with your estimate.
We replaced 11 original single-pane double-hung windows in a 1920s cedar-shingle cottage off Sir Francis Drake Boulevard near the Inverness Yacht Club, where salt-laden fog had rotted the sashes and clouded the glass. Our tech swapped the failing units for CGI impact-rated casements with low-E insulated glass units, re-flashed every jamb, and confirmed the new sash alignment against the existing redwood frames. The homeowner noticed the interior fogging stopped immediately once the laminated glass interlayer was in place.
That project shows the Inverness-specific reality: the permit overlap with Point Reyes National Seashore design review runs right up against jamb rot, salt-fog hardware corrosion, and coastal material lead times. This page maps that overlap so you know what actually changes the price once work begins. We are the windows-and-doors specialist in the Garrison Partners network, and we price every job in writing before the first screw turns. Call (817) 686-2228 for a free estimate on your Inverness window replacement.
Written by Elliot Vance, Owner at Meridian Windows & Doors, serving Inverness since 2009.










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