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 Windsor
Window installation in Windsor comes down to this: most single-window replacements run $600 – $1,200 installed, full-home projects typically land between $8,000 and $22,000, and the work usually takes one to two days for a standard retrofit. That’s the honest range before anyone walks your property. Meridian Windows & Doors serves Windsor with written pricing and a crew that shows up as scheduled. If you’re weighing replacement windows anywhere from Brooks Road to the newer subdivisions off Old Redwood Highway, call (817) 686-2228 to get a real number, not a ballpark.

We’re not the cheapest bid in Windsor, and we won’t pretend to be. We’re the outfit that puts the price on paper before the first screw turns and backs the install in writing for a full year.
Why Meridian Windows & Doors Is Windsor’s Preferred Window Installation Company
Homeowners in Windsor keep calling us for a simple reason: the number we quote is the number on the invoice. No add-on surprises when the old sash comes out and the jamb shows rot. No “we’ll circle back with an updated figure” phone calls. The written price is part of how we run every job, and it’s covered by our 365-Day Done Right Promise: if something fails within that year, we return at no charge. That guarantee is in writing on every install, with no fine print about labor exclusions.
Our technicians are background-checked and uniformed, so you know exactly who’s walking through your door in Windsor. Every call to (817) 686-2228 is answered by a live person, 24 hours a day. You won’t leave a message and hope someone returns it next business day.
As part of the Garrison Partners family, we operate to The Garrison Standard: a fixed code for how work gets scoped, priced, and finished. A meridian is a fixed line you measure everything against. That’s what the name means, and it’s how we run every install in Windsor. Elliot Vance leads the team, and the same standard that applied in 2009 applies on your job today.
Casement Windows in Windsor
Casement windows in Windsor are the right call for any room where you want maximum airflow and a tight seal when closed. These windows hinge at the side and crank outward, which means the sash presses firmly against the weatherstripping when locked. That makes them a strong performer on Windsor’s warm summer afternoons when you want cross-ventilation through the house but need a firm seal once the AC kicks on. Expect casement window replacement in Windsor to run $700 – $1,400 per unit installed, depending on glass package and frame condition.
Casements are also a common fix when existing windows won’t latch. We see this in Windsor’s older ranches where the hardware has worn past adjustment.
West-Facing Rooms and Glass Selection
On Windsor’s west-facing walls, afternoon sun loads are significant. A casement with Low-E glass and a tuned solar heat gain coefficient keeps that heat outside instead of radiating through the room. The glass choice matters as much as the frame.
When the Opening Needs Framing Work
If the old casement frame has dry rot around the sill, our crew pulls the unit, checks the jambs, and replaces any compromised framing before the new window goes in. That’s the kind of finding that can change the written price, but you’ll see it on paper before we touch it.
Double Hung Windows in Windsor
Double hung windows in Windsor remain the most common replacement for older homes north of Windsor River Road and in the established neighborhoods around Foothill Regional Park. Both sashes move vertically, which gives you ventilation from the top, bottom, or both. That’s useful on Windsor evenings when the air cools and you want to pull heat out of the house without running the AC. A double hung replacement in Windsor runs $600 – $1,100 per unit installed for a standard Low-E vinyl or wood window.
The real question on a double hung isn’t the glass, it’s the condition of the pocket the window sits in.

Builder-Grade Failures and Fogged Glass
Original builder-grade double hungs in Windsor’s 1970s and 1980s homes often have failed insulated glass units that fog between the panes. Once the seal breaks, the insulating gas escapes and the window loses its thermal performance. Replacement is the practical fix.
Retrofit vs. Full Frame Replacement
If the existing jamb and sill are sound, a retrofit keeps the new window in the same pocket and trims labor. If rot or settling has damaged the opening, a full frame replacement is the correct spec. Either path gets priced in writing before work begins.
Trusted Brands We Service in Windsor
Meridian Windows & Doors is authorized to install and replace products from eight manufacturer lines, including CGI, CWS, and ES Windows. We steer Windsor homeowners toward the right glass and frame for their specific wall exposure and comfort goals, not toward whatever happens to be in stock. Our Window Installation team also maintains a steady flow of parts and hardware for these brands, which means faster turnaround on repairs and fewer delays on replacements. Whether your job calls for a hurricane-rated CGI unit on a wind-exposed wall or a clean CWS slider for a hallway, we can spec it correctly and order it without the usual supply chain guesswork. If you’re unsure which product fits your Windsor home, call (817) 686-2228 and our team will walk you through the options.
Common Window Installation Problems We See in Windsor Homes
- Hidden dry rot in the jamb. Windsor’s inland heat and occasional winter rain can leave moisture damage behind the old sash. It only shows once the window comes out, which is why our written scope anticipates it.
- Clear glass on west-facing walls. Some Windsor homes got standard clear insulated glass years ago. Without a Low-E coating tuned to reduce solar heat gain, those rooms keep cooking every summer afternoon.
- Failed seals on builder-grade units. Fogged glass between the panes is common in Windsor’s 1970s and 1980s inventory. It signals a broken seal and lost efficiency.
- Permit confusion on egress changes. If a window opening changes width, or a bedroom window’s clear opening shifts, Windsor follows Sonoma County building department review. A like-for-like swap usually doesn’t trigger a permit. Structural alterations do.
Pricing for Window Installation in Windsor, CA
Here are working numbers for Windsor’s market. Single double hung replacement: $600 – $1,100 per unit. Casement windows: $700 – $1,400 per unit. A three-panel sliding window typically lands between $1,800 and $3,200. Full-home projects in Windsor’s older subdivisions, where multiple units need full frame replacement and glass upgrades, run $12,000 – $22,000. These ranges include labor, materials, and disposal. They do not include framing repairs discovered after removal, which is exactly the kind of thing our written scope is built to address up front. Call (817) 686-2228 and we’ll give you a precise written price after a site visit, free of charge.
We Also Serve Cities Near Windsor
Beyond Windsor, our crews cover Healdsburg, Santa Rosa, Sebastopol, and Guerneville. If you’re just outside town and comparing options, our Window Installation in Windsor page gives you the same honest pricing structure and written guarantee terms we apply across Sonoma County.
Serving Windsor, CA - Our Local Coverage Area
We’re based in the Windsor 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 Windsor
A like-for-like window replacement in Windsor typically does not require a permit when the opening size and structural framing stay the same. If you’re enlarging an opening, changing a header, or altering the clear opening width on a bedroom window for egress, the project falls under Sonoma County building department review. Our team checks this during the initial scope so there are no surprises. Call (817) 686-2228 and we’ll confirm what your specific project needs.
A full window installation in Windsor starts with measurement and a perimeter check for rot, then moves to a permit determination, glass and frame ordering, removal day, jamb inspection, new unit installation, interior and exterior trim, and final walkthrough. Most single-unit replacements finish in one day; full-home jobs in Windsor’s established neighborhoods usually run three to five working days. We give you a written sequence of work before anything starts.
Glass package is the biggest cost driver in Windsor. Low-E coatings tuned for solar heat gain control cost more than standard clear insulated glass but directly address the inland summer heat. Frame material matters too: vinyl runs less than wood-clad or fiberglass. Unit size, egress requirements, and whether the existing jamb needs reconstruction all move the final number. Double hungs in Windsor land between $600 and $1,100 per unit; casements run $700 to $1,400. Call (817) 686-2228 for a written quote on your specific windows.
The two things that change a Windsor window replacement price are hidden dry rot in the jamb and structural alterations to the rough opening. Both are discoverable during the initial inspection, which is why our written scope includes a contingency line item so you know the worst-case number before we start. If the jamb is sound and the opening size holds, the written price is the final price.
Glass choice matters in Windsor because inland Sonoma County summers routinely push afternoon highs into the mid-90s, and many older homes were built before Low-E insulated glass was standard. Without a Low-E coating tuned to the correct solar heat gain coefficient, west- and south-facing rooms absorb heat that air conditioning then has to fight. The right glass cuts that heat load before it enters the house. Call (817) 686-2228 and we’ll help you spec the right glass for each wall of your home.
Need a straight answer on window installation in Windsor? Call (817) 686-2228 for a free estimate. Written price, before any work begins. Guaranteed in writing for 365 days.
Written by Elliot Vance, Owner at Meridian Windows & Doors, serving Windsor with window installation and replacement.










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