Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
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AfterFast, Reliable Door Replacement Across Cotati
Door replacement in Cotati runs from about $1,200 for a basic steel slab to $6,500+ for a premium fiberglass entry system with sidelites. That’s the honest range, and we’ll put your exact number in writing before any work starts. If you live off Old Redwood Highway, near Thomas Page Elementary, or up in the hills by Helen Putnam Regional Park, our crews know the housing stock, the permitting rules, and the weather patterns that make Cotati door work different from nearby Sonoma County towns. Call (682) 281-2168 to schedule your free estimate.
Why Juniper Windows & Doors Is Cotati’s Preferred Door Replacement Company
We’re the windows-and-doors specialist inside the Relay Home Co. family, and our Cotati customers keep us for one reason: no vague estimates. Sean Mackey leads a team of background-checked, uniformed technicians who show up with a written price, photo updates, and a live arrival time you can track from your phone. A door replacement on a Cotati rambler off East Cotati Avenue isn’t a guesswork job, and we don’t treat it like one.
What separates us is the 365-Day Done Right Promise. If the door isn’t right a month later or a season later, we make it right, parts and labor, in writing. That matters in Cotati, where winter rains off the Petaluma hills test every exterior seal within a year. We stand behind our flashing, our framing, and our finish work for a full year after install.
The Relay Visibility Guarantee is the other piece. Book in a tap, get a live arrival time, see before-and-after photos of the opening, and pay a digital invoice from a link. No four-hour windows, no no-shows. If you call our line at (682) 281-2168 at 2 a.m. with a question, a real person answers. That’s not a marketing line, it’s how we’ve operated since 2001.
Door Installers in Cotati
Door Installers in Cotati typically handle the physical scope: removing the old slab and frame, inspecting the rough opening, flashing and sealing, setting the new prehung unit, and re-trimming to match the existing exterior. On a stucco house, that last step takes patience, because Cotati stucco reveals are often floated tight to the old jamb. A clean removal means shaving back the reveal so the new door sits flush without cracking the surrounding plaster.
In Cotati, figure $1,200 to $4,800 for a standard entry door installation depending on material. Fiberglass prehung units with composite jambs run higher than steel slabs, and anything with a sidelite adds labor and material.
Frame and Jamb Repair
Most Cotati door replacements aren’t simple swaps. The jamb has often rotted at the bottom from decades of wind-driven rain, especially on homes built in the 1970s and 1980s. We rebuild the jamb with rot-resistant stock, then flash and seal the rough opening before the new door goes in.
Skipping this step is the fastest way to destroy a new door. Set a fresh unit into a rotten jamb and it racks within a season or two, the sweep drags, and water gets behind the frame. A proper jamb repair in Cotati adds $300 to $900 but it’s not optional if the existing wood is soft.
Sidelite and Glass Panel Replacement
Many Cotati entries off Charles Street and Gwen Lane feature a sidelite or a glass panel beside the door. Replacing the door while keeping the original sidelite means matching the frame depth and glass profile, which is doable but requires careful measuring. New impact-rated sidelites with laminated glass interlayers start around $800 and go up depending on dimensions.
Door Contractors in Cotati
Door Contractors in Cotati handle the jurisdiction side of the job: confirming permit requirements, pulling the permit with the city, and scheduling the final inspection. Cotati’s building department enforces California’s wildfire-urban-interface and energy rules alongside standard CBC door egress requirements. That means most exterior door replacements here need a permit and a Title 24-compliant door assembly. This is not the permit-free swap you might get in unincorporated Sonoma County pockets under county jurisdiction.
A Cotati door contractor also owns the timeline: ordering the unit, coordinating stucco or trim repairs, and making sure the rough opening is corrected before the new frame lands. On exterior doors, reflashing the rough opening is mandatory, whether the house is stucco, wood-sided, or board-and-batten.
Permit and Title 24 Compliance
If you replace an exterior door in Cotati and skip the permit, you may not hear about it until resale. A title search flags unpermitted work, and the buyer’s inspector catches the missing Title 24 documentation. Then you’re pulling the door and redoing it. We pull permits, document the assembly’s energy compliance, and walk the inspection with you.
Reflashing and Weather Sealing
On a stucco house off Valparaiso Avenue near Helen Putnam Regional Park, our crew replaced a failed Therma-Tru entry door whose jamb had rotted from years of wind-driven rain off the hills. We pulled the old frame, flashed and sealed the rough opening, set a new impact-rated prehung unit with a laminated glass interlayer sidelite, and re-struck the trim so the new door sat flush with the existing stucco reveal. That’s the standard, every time.
Trusted Brands We Service in Cotati
We stock and install Therma-Tru, PGT, ViewLux, and CGI door systems, which means Cotati homeowners aren’t waiting on a distributor in Santa Rosa for parts. Whether you need a fiberglass entry door with a composite jamb or an impact-rated PGT door rated for wind-borne debris, we order the exact unit for your opening and schedule installation around your timeline. Fast turnaround matters here, because an exposed rough opening during Cotati’s wet season is a problem we’d rather not leave you with. Call (682) 281-2168 and we’ll quote your door by brand and line item.
Common Door Replacement Problems We See in Cotati Homes
- Rotted jambs from wind-driven rain. Homes on the west and northwest sides of Cotati catch storms coming off the Petaluma hills. The jamb rots at the bottom while the slab looks fine, and homeowners only notice when the door won’t latch in January.
- Unpermitted prior replacements. We’ve had to pull doors in Cotati that were installed without a city permit or Title 24 documentation. The homeowner paid once, then paid again to get it done right and pass inspection.
- Missing flashing on stucco and wood-sided homes. If the rough opening isn’t reflashed, water gets behind the new frame and rots the sheathing. It’s silent damage until you see the trim pulling away years later.
- Slab-only replacements. Replacing the door slab and leaving the old jamb means the new unit racks and leaks within a season or two. In Cotati’s wet winters, that’s not a long runway.
Pricing for Door Replacement in Cotati, CA
A standard steel entry door replacement in Cotati runs $1,200 to $2,800. A fiberglass unit with a composite jamb and energy-rated core lands between $2,400 and $4,800. Premium fiberglass entry systems with sidelites, impact-rated glass, or custom finishes start around $4,500 and reach $6,500 or more. Jamb repair and reflashing add $300 to $900 when the existing frame has rot. Permit fees, Title 24 documentation, and inspection scheduling run $150 to $500 depending on the scope. We put every number in writing before work starts, and the 365-Day Done Right Promise covers the completed installation for a full year, parts and labor. Call (682) 281-2168 for a free estimate, and you’ll get a line-item price, not a vague range.
We Also Serve Cities Near Cotati
Our Cotati crews regularly handle Door Replacement work in Rohnert Park, Petaluma, Santa Rosa, and Sebastopol. If you’re just over the city line, we’ll still quote your job with the same written-price standard. And if you’re in Cotati proper, we’re your local team for the entire sequence: measure, permit, install, inspect.
Serving Cotati, CA - Our Local Coverage Area
We’re based in the Cotati 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 Door Replacement in Cotati
Yes. Cotati’s building department enforces California’s wildfire-urban-interface and energy rules, so exterior door replacements need a permit and a Title 24-compliant door assembly. We pull the permit, document the compliance, and schedule the inspection. Call (682) 281-2168 if you want us to check your specific door’s requirements, estimates are free.
A standard single-door replacement takes one day once the unit is on site. If the jamb needs rebuilding, the rough opening needs correction, or stucco repair is involved, plan for a second day. Permitting adds lead time depending on city review, usually a few days to two weeks. We’ll give you a calendar at the estimate.
Material, jamb condition, and permit requirements are the big three. A fiberglass unit with a composite jamb costs more than a steel slab. A rotted jamb adds $300 to $900. And Cotati’s permit and Title 24 compliance adds $150 to $500. Call (682) 281-2168 for a line-item quote, no guessing.
The price changes if the rough opening reveals damage we couldn’t see before removal: rotted sheathing, termite damage, or framing that’s out of square. We name that as a possibility at the estimate and give you the per-line-item cost before we proceed. You approve the extra in writing, on your phone, before any additional work begins.
Yes. We match frame depth, glass profile, finish, and hardware backset to the original door, including sidelites and trim reveal. On mid-century Cotati homes with stucco reveals, the trim match is the part that makes it look original. Call (682) 281-2168 and we’ll walk the match with you at the estimate.
Schedule Your Free Door Replacement Estimate in Cotati
You’ll get a written price, a realistic timeline, and a live arrival time before our crew shows up. No pressure, no vague ranges, no change orders you didn’t approve. Call (682) 281-2168 to book your free estimate. Sean Mackey and the Juniper team will handle the rest, from the first measurement to the final inspection.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving Cotati since 2001.