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AfterWindow Company in Napa, CA
Juniper Windows & Doors handles window replacement, window installation, and door replacement across Napa, CA. Most Napa homes sit somewhere between 40 and 90 years old, which means single-pane windows, tired wood frames, and doors that have weathered decades of hot, dry summers. We’re the windows-and-doors specialist inside the Relay Home Co. family, founded in 2001, and every project starts with a written price before any work begins. Call (682) 281-2168 for a free estimate.
Why Napa Homes Are Different
Napa’s climate pushes against windows and doors in specific ways. Summer temperatures routinely cross 90°F, and the UV exposure here is relentless. We regularly see warped wood sashes on older homes in the Alta Heights and Browns Valley neighborhoods, where original single-pane units have spent decades facing afternoon sun. At the same time, Napa’s winter mornings can dip into the 30s, so the same house needs glass that holds heat in January and blocks it in July. That’s a real tension, and it’s why a U-factor (how well the glass insulates) and a solar heat gain coefficient (how much sun heat the glass lets through) both matter on the same project.
Permits are another Napa reality. The city’s building department requires permits for window and door replacements in most single-family homes, particularly when the opening size changes. We pull permits and schedule inspections as part of the job. Some homes in older districts also fall under historic review standards, which can affect frame material and glass type. We’ve worked through that process with homeowners in the Fuller Park and downtown areas, and we’ll flag it early so nobody gets surprised mid-project.
Our Main Napa Services
Most Napa homeowners call us for one of three jobs: replacing failing windows, installing new construction windows, or swapping out an exterior door that’s warped, drafty, or simply tired. Each service has its own Napa page below with the full details.
Window Replacement in Napa
Window replacement in Napa usually means pulling out old wood or aluminum frames and dropping in modern, dual-pane units sized to the existing opening. We see a lot of aluminum-frame windows from the 1960s and 70s in the Jefferson Street corridor, and those are often the leakiest units in the house. For more on what replacement costs, how long it takes, and which frames work best in Napa’s climate, see our full Window Replacement in Napa page.
Window Installation in Napa
Window installation is different from replacement. It’s for new openings, additions, or remodels where the rough opening doesn’t exist yet. In Napa, this often comes up when a homeowner is adding a sunroom, finishing a garage, or building an ADU in the backyard. The rough opening has to be flashed and sealed correctly for Napa’s winter rain, which falls hard between November and March. Our Window Installation in Napa page covers the process, timeline, and what new construction actually costs.
Door Replacement in Napa
Napa summers bake exterior doors, especially south-facing and west-facing entries. Wood doors crack and fiberglass doors fade. We replace entry doors, French doors, and patio sliders. Fit matters here as much as the door itself: Napa’s older homes have settled, so getting a new door square in a 60-year-old frame takes shimming, patience, and someone who’s done it a few hundred times. Full pricing and timeline details live on our Door Replacement in Napa page.
What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Napa
Juniper services and installs windows and doors from CGI, CWS, ES Windows, and ECO Window Systems across Napa. Parts for these lines are stocked at our Bay Area dispatch office, and crews schedule Napa work directly through that office. One call to (682) 281-2168 covers the quote. Visit our brands for the full product breakdown.
Pricing for Window Company in Napa, CA
| Service | Typical range in Napa |
|---|---|
| Whole-house window replacement (10-12 windows) | $8,500 – $16,000 |
| Mid-range vinyl window (installed) | $450 – $900 per window |
| Impact-rated window (installed) | $900 – $1,800 per window |
| Wood or wood-clad window (installed) | $950 – $2,200 per window |
| Single window replacement (standard size) | $650 – $1,400 |
| Entry door replacement (steel or fiberglass) | $1,800 – $4,200 |
| Patio sliding door replacement | $2,400 – $5,500 |
| French door replacement (pair) | $3,200 – $7,800 |
| Custom wood door | $4,500 – $9,500 |
| New construction window installation | $400 – $900 per window (labor only) |
What pushes the top end in Napa: historic-district requirements, access on hillside lots in the eastern part of town, and custom sizing for older openings that were never standard to begin with. Whatever the number, it’s written down before we start. No change orders, no surprise invoice.
Neighborhoods We Serve in Napa
We work across all of Napa, CA and the surrounding valley. Scheduling is coordinated from our Bay Area office, and crews typically reach most Napa neighborhoods within the week. These are the areas we see most often:
- Alta Heights
- Browns Valley
- Fuller Park
- Downtown Napa
- Westwood
Service Area – Cities Near Napa
Beyond Napa proper, we also serve homeowners in Sonoma, CA, Boyes Hot Springs, CA, Deer Park, CA, and Winters, CA. If you’re near Napa but not in it, call (682) 281-2168 and we’ll confirm coverage before you schedule anything.
Serving Napa, CA - Our Local Coverage Area
We’re based in the Napa 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 Company in Napa
Most Napa homeowners get a quote visit scheduled within a few business days. Crews are dispatched from our San Francisco Bay Area office, and Napa jobs are grouped by neighborhood so the drive doesn’t slow anything down. Call (682) 281-2168 and we’ll give you a specific window.
In most cases, yes. Napa’s building department requires permits for window and door replacements when the opening changes size or the work affects structural framing. We pull all permits and handle inspections as part of the project. Historic districts add a review step we’ll flag before you commit.
The price covers materials, labor, permit fees, and disposal. If something changes during the job, we absorb it or talk to you first – we don’t hand you an adjusted invoice at the end. And every installation carries our 365-Day Done Right Promise: 365 days, parts and labor, in writing.
What happens when you call
- 1A real person answersNo phone trees - talk to a local windows & doors pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Napa Customers Say
"Front door looks great and shuts well. The threshold is sealed well and the lock lines up with the strike."
- Rory F."Quote came in the app with options for glass. Easy to compare."
- Vera L."Door replacement. Installer texted when on his way and finished by lunch. Tight and clean."
- Neil B.