Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Installation Across Kentfield
Our Window Replacement in Kentfield runs $850 – $2,400 per opening for most standard replacements, with full-home projects typically landing between $9,000 and $28,000 depending on window count, frame condition, and whether your home sits on a flat lot near the College of Marin or a hillside above Sir Francis Drake Boulevard. Those two lot types drive completely different scopes, and we price accordingly after field-measuring every rough opening. Our crews know Kentfield’s specific housing stock, from 1950s ranches to 1970s contemporaries. Call (817) 686-2228 for a written estimate before any work starts.

Why Meridian Windows & Doors Is Kentfield’s Preferred Window Installation Company
We operate under Kentfield standards that match what this community expects: written prices, on-time crews, and cleanup that leaves your sill caulk straight. Meridian Windows & Doors is part of the Garrison Partners family, held to The Garrison Standard since 2009. That means background-checked, uniformed technicians on every call, and a live person picks up the phone 24 hours a day.
Kentfield homeowners have told us the same story repeatedly: a contractor quoted one number, showed up late, then found “unexpected rot” and moved the price. We do not operate that way. The price goes on paper before a single screw turns and it does not move at the door. Our Window Installation team is led by Elliot Vance, and every job is covered by a written 365-Day Done Right Promise. If something fails within that year, we return at no charge.
Window Contractor in Kentfield
Window Contractor work in Kentfield is rarely a simple swap. Our crew replaced a failed sliding glass door and four fixed units on a hillside home off Bacon Lane, where the original 1960s rough openings were racked out of square by decades of soil movement. We used CGI impact-rated glazing with laminated glass interlayer sized to the actual opening rather than nominal dimensions, and sealed the jambs with a drainage-plane detail so the new units wouldn’t leak at the sill during the first winter storm. That is the difference between a window contractor who field-measures before quoting and one who orders from a catalog.
Scoping the Opening
We remove the interior trim and inspect the rough framing before we confirm a price. In Kentfield’s mid-century stock, framing frequently is not plumb or square. Discovering that after the crew starts costs you framing modifications; discovering it during the estimate costs you nothing.
Drainage and Flashing
Kentfield’s older stucco and redwood-sided homes need a drainage-plane and flashing detail at the jamb and sill. Skip it, and the first atmospheric river turns a clean install into a water intrusion callback. Our crews install to that standard on every opening, regardless of what the existing flashing looks like.
Window Installers in Kentfield
Window Installers in Kentfield handle two distinct housing types: flat-lot ranch homes near the College of Marin with predictable framing, and steep hillside contemporaries above Sir Francis Drake Boulevard with engineered openings that will not accept off-the-shelf sizing. The installers we send know which type they are walking into before the truck arrives. We dispatch from the San Francisco Bay Area office, but the crews live and work in Marin County, so response to Kentfield neighborhoods is measured in days, not weeks.
Hillside Openings
Hillside homes frequently have custom-sized casement or fixed units because the original rough framing does not match standard window dimensions. We measure every opening with a laser, not a tape-note guess, and order from our eight manufacturer lines to hit the actual size. No shim packs, no oversized trim to hide gaps.
Flat-Lot Ranch Work
Ranch homes on flat lots near Sir Francis Drake Boulevard are usually more forgiving, but the original single-pane aluminum frames from the 1960s often sit in openings that have settled slightly. We inspect the header and sill plate before writing the quote, so the price you sign is the price you pay.
Trusted Brands We Service in Kentfield
We stock and install products from PGT, CGI, and CWS, along with five other manufacturer lines. For Kentfield specifically, that matters. A hillside home above Bacon Lane benefits from CGI’s impact-rated laminated glass; a flat-lot ranch near the College of Marin may do just as well with PGT’s standard insulated units at a lower cost. We are authorized to install and replace all of these products, which means warranty registration is handled correctly and parts arrive fast for any follow-up service.

Common Window Installation Problems We See in Kentfield Homes
- Racked rough openings on hillside lots. Decades of soil movement on slopes above Bacon Lane and Laurel Grove Avenue pulls framing out of square. Standard-sized units will not seat properly without expensive modification.
- Skipped flashing on stucco and redwood exteriors. Older Kentfield homes need a drainage-plane detail at the sill and jamb. Missing flashing leads to water intrusion after the first heavy storm.
- Catalog pricing before field measurement. A flat per-window quote written without checking whether the existing framing is plumb and square is the single biggest reason mid-job cost changes happen here.
- Single-pane aluminum frames from the 1960s. These units are energy liabilities and difficult to repair with modern parts. Replacement with low-E glass (a thin coating that reflects heat while letting light through) is usually the better move.
Pricing for Window Installation in Kentfield, CA
Plan on these ranges for Window Installation in Kentfield:
- Single or double hung window: $850 – $1,600 installed
- Casement window: $1,100 – $2,100 installed
- Picture or fixed window: $700 – $1,500 installed
- Bay or bow window: $2,800 – $5,500 installed
- 3-panel sliding window: $1,600 – $3,200 installed
- Full-home replacement (8 – 12 windows): $9,000 – $28,000
The biggest cost variables are frame condition, whether the opening is square, and glass spec. Impact-rated laminated glass from CGI runs higher than standard insulated PGT units, and hillside homes frequently need it. We give you a written, line-item price before work begins. Call (817) 686-2228 for a free estimate on your specific openings.
We Also Serve Cities Near Kentfield
Our crews handle window installation in Kentfield and the surrounding Marin County communities, including Larkspur, San Anselmo, San Rafael, and Corte Madera. Same crew, same written pricing standard, same 365-day guarantee on every opening.
Serving Kentfield, CA - Our Local Coverage Area
We’re based in the Kentfield 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 Installation in Kentfield
Because Kentfield’s mid-century and hillside homes frequently have openings that are racked out of square, and a contractor who quoted a flat per-window price without field-measuring will hit that problem mid-job and pass the framing modification cost to you. We measure and inspect every rough opening before we write the quote, so the price you sign is the price you pay. Call (817) 686-2228 for an exact, written number.
Most standard replacements run 2 to 4 weeks from estimate to completed install, including ordering windows from the manufacturer. Hillside custom-sized units add roughly 2 to 3 weeks for fabrication. Permits, when required, add their own processing time depending on Marin County’s current backlog.
Window replacement in Kentfield typically requires a permit when the opening size changes or structural framing is modified. Same-size replacements may not require one. We confirm permit requirements during the estimate and pull permits ourselves when the scope calls for it.
Both, but in Kentfield the labor and framing condition often outweigh the window unit cost. A standard PGT double hung might be $500 of the $1,100 installed price, with the rest going to removal, flashing, sealing, and interior trim. On hillside homes, custom sizing adds fabrication cost on top of that. We break all of this out line by line in the written estimate.
Yes, particularly if you are replacing 1960s single-pane aluminum frames. Low-E insulated glass reduces heat gain during summer and heat loss during Kentfield’s cool, foggy winter mornings. The savings depend on window count, orientation, and existing insulation, but a full-home replacement typically shows measurable reductions within the first year. Call (817) 686-2228 and we will tell you straight what to expect for your specific house.
If your Kentfield home needs window installation done right, with a written price and a crew that shows up, call us at (817) 686-2228. Estimates are free, and the number we put on paper is the number you pay.
Written by Elliot Vance, Owner at Meridian Windows & Doors, serving Kentfield since 2009.










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