Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Window Company in Redwood City, CA
Juniper Windows & Doors is the window company Redwood City homeowners call when they want a written price before any work starts. Redwood City’s housing stock runs the full spectrum: 1940s bungalows near downtown, mid-century ranchers up in Woodside Plaza, and newer builds in Redwood Shores. That means window and door jobs here rarely follow a single playbook. Older sashes need custom measurements, coastal-adjacent homes want glass that stands up to bay wind, and some HOAs have opinions about what your front door can look like. We handle all of it. Call (682) 281-2168 for a free estimate.
Why Redwood City Homes Are Different
Redwood City sits in a sweet spot geographically: sheltered from the worst Pacific fog by the coastal range, but close enough to the bay to get steady afternoon wind. Homes here deal with real sun load in summer and damp, cool mornings in winter. Wood frames swell and shrink through the year, which is why we see so many stuck sashes and doors that won’t latch by late fall. Double-pane seals fail faster on the west-facing sides of homes in neighborhoods like Redwood Oaks and Farm Hill, where there’s little shade. We also see a lot of original single-pane windows in the older pockets off El Camino Real and around Stafford Park, homes built before energy codes ever mentioned U-factor. Replacing those changes how the house feels immediately: quieter, warmer in January, and noticeably cheaper to cool in August.
Permitting in Redwood City is straightforward for like-for-like replacement, but anything that changes the rough opening or structural framing triggers plan review. Door replacements on older homes sometimes reveal rot in the jamb or sill, which has to be fixed before the new unit goes in. We flag that during the estimate, not after the old door is off. Redwood Shores has its own HOA landscape, and several complexes there require architectural approval before exterior door or window changes. We’ve worked through that process enough times to know which questions to ask first.
Our Main Redwood City Services
Most Redwood City calls come down to two things: windows that need replacing, and doors that need replacing. Window installation (new construction or full-frame) fills in the rest. Here’s what each one looks like in Redwood City.
Window Replacement in Redwood City
Replacement work means the existing frame stays put, and a new insert window goes inside it. That’s the right call for most Redwood City homes where the frame is still square and rot-free. We measure every opening individually because older homes here have settled, and a window that fits one bedroom may not fit the next. Homeowners in Woodside Plaza and Palm Park often go with impact-rated glass for the wind exposure, while downtown condo owners care more about sound reduction from El Camino Real traffic. Window Replacement in Redwood City goes into full detail on glass options, fit, and cost.

Window Installation in Redwood City
Full-frame or new-construction installation means pulling the entire old unit, frame and all, down to the studs. That’s what new additions, ADUs, and whole-home flips need. Redwood City has plenty of garage conversions and backyard cottages going up, and those projects need windows tied into fresh waterproofing, flashing, and exterior trim. We coordinate with the general contractor or the homeowner directly. If you’re building new in Redwood Shores or Emerald Hills, the installation has to hit code for energy performance and egress. Window Installation in Redwood City covers the full process and what a new-construction install costs here.

Door Replacement in Redwood City
Front doors in Redwood City take a beating from the afternoon sun, and back doors take it from the wind. We replace entry doors, patio sliders, and interior doors. Sliding glass doors are a constant request in Redwood Shores, where the view matters too much to block with a swinging door. Older entry doors around Stambaugh and Horgan Ranch are often hollow-core and warped; swapping in a solid composite or steel door changes security and curb appeal the same day. Door Replacement in Redwood City walks through slab vs. pre-hung, slider options, and what a new front door should cost.

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 Redwood City
We install and service windows and doors from CGI, CWS, and ES Windows, among the product lines we carry. Common parts and hardware are stocked locally, which means most warranty parts in Redwood City turn around in days instead of weeks. See the full lineup on our brands page.
Pricing for Window Company in Redwood City, CA
| Service | Typical range in Redwood City |
|---|---|
| Window screen replacement | $45 – $90 per screen |
| Window hardware repair | $80 – $210 per window |
| Window glass replacement (single pane) | $220 – $525 per window |
| Window glass replacement (double pane, clear) | $370 – $920 per window |
| Full window replacement (insert, vinyl, energy-efficient) | $640 – $1,455 per window, installed |
| Full window replacement (impact-rated) | $925 – $2,645 per window, installed |
| Exterior door replacement (standard 36×80 entry) | $1,050 – $3,460 per door, installed |
| Sliding glass door replacement | $1,915 – $4,935 per door, installed |
| Interior door replacement (slab, installed) | $330 – $790 per door |
| Window frame repair (wood or vinyl) | $180 – $470 per frame |
What pushes Redwood City pricing up from the low end: second-story work, rot repair inside a frame, custom sizing on older bungalows, and HOA-required architectural review on Redwood Shores properties. What pushes it down: standard sizes, single-story access, and single-window jobs where the opening is clean. Every Juniper job gets a written price before work starts. If the final number changes, you’ll see why before we touch a screw. Call (682) 281-2168 for an exact quote.
Neighborhoods We Serve in Redwood City
We work across the entire city, from the bay side to the foothills. Each area brings its own housing stock and its own typical jobs. Most Redwood City homes are within a 20-minute drive of our Bay Area dispatch office, so scheduling is tight.
- Redwood Shores
- Woodside Plaza
- Farm Hill
- Redwood Oaks
- Emerald Hills
Service Area – Cities Near Redwood City
Our Bay Area crews schedule Redwood City jobs from the San Francisco Bay Area office and cover the surrounding peninsula directly. We also handle window and door work in Atherton, CA, Menlo Park, CA, San Carlos, CA, and Palo Alto, CA. Call (682) 281-2168 to confirm a date in any of those cities.
Serving Redwood City, CA - Our Local Coverage Area
We’re based in the Redwood City 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 Redwood City
Yes, when a job requires one. Like-for-like replacements typically don’t need a permit in Redwood City, but any change to the rough opening, structural framing, or egress does. We handle the permit application and coordinate inspections. Call (682) 281-2168 and we’ll tell you which category your job falls into.
Most replacement jobs can be scheduled within one to two weeks, depending on product lead time. Custom or impact-rated windows sometimes add a week or two for manufacturing. We lock your date at the time of booking and you’ll get a live arrival time the day of the job. Call (682) 281-2168 to check current availability.
Yes. Several Redwood Shores complexes require architectural committee approval before exterior door or window changes. We’ll tell you at the estimate whether your community needs that step, and we can provide product specs and color samples for your application. Call (682) 281-2168 with your community name and we’ll sort it out.
Need a straight answer on cost, timeline, or whether your windows are worth saving? Call Juniper Windows & Doors at (682) 281-2168. You’ll get a written price, a live arrival time on the day of the job, and the 365-Day Done Right Promise in writing: if it’s not right, we make it right, for a full year after installation.
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 Redwood City 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.










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