Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Sliding glass doors
Impact garage doorsPGTCGI
Before
After
Before
After
Before
AfterFast, Reliable Impact Windows & Doors Across Redwood City
Impact window and door replacement in Redwood City typically runs $900-$2,800 per opening, with full-home projects on 1940s-1960s ranch homes landing between $18,000 and $45,000 depending on frame condition, flashing work, and whether we’re pulling original steel-sash casements that can’t be re-glazed. Most Redwood City jobs take one to two days per opening once materials arrive. If you’re in the 94061 ZIP and wondering whether your windows are even worth repairing, call (888) 635-0804 and we’ll walk you through what you’re actually looking at.
We know Redwood City’s housing stock because we’ve worked it block by block. The flatland grid around downtown, Stambaugh-Heller, and the numbered avenues near Sequoia High School hold some of the densest concentrations of original single-pane windows on the mid-Peninsula, and those windows were never built for the UV load this city actually gets. Our Impact Windows & Doors crew has pulled more obsolete steel-sash casements out of Redwood City ranch homes than we can count, and we scope every job for the flashing and frame conditions those homes are known for before we quote.
Why TruePane Windows & Doors Is Redwood City’s Preferred Impact Windows & Doors Company
TruePane is led by Dale Kessler, a second-generation glazier who founded the company in 2008 on a rule that’s still on the whiteboard: if the pane is not true, the job is not done. Redwood City homeowners call us because we send background-checked, uniformed technicians who measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers in writing before the truck leaves the driveway. That’s The Keystone Standard, and it applies to every impact window and door we set in Redwood City.
We’re not a franchise playbook. We’ve been serving local communities since 2008 through the Kessler family’s glazier tradition, and we hire local apprentices and train them into journeymen. A live person answers our phone 24 hours a day, 7 days a week. No voicemail tree, no regional call center. When a Redwood City homeowner calls about a fogged impact window or a door that binds in July, they talk to someone who understands the problem.
Every job carries our Done Right Promise. If something isn’t done right, we make it right with no paperwork fights and no arguing. That’s a square deal, and it’s the only way we work in Redwood City or anywhere else on the Peninsula.
Our Impact Windows & Doors Services in Redwood City
Hurricane Impact Windows
Redwood City’s mid-century homes were built with minimal single-pane windows because the city’s famously sunny microclimate led builders to assume heating and cooling loads were negligible. Those assumptions left decades of homes with window frames too thin for modern flashing practice. We full-frame replace those openings with impact-rated units from PGT, CGI, and ES Windows, using low-E glass and argon fill where the existing rough opening allows. In Redwood City’s high-UV pocket, glazing selection matters more than most homeowners expect, and we quote glass packages side by side so the decision is on paper, not a sales pitch.
Impact Sliding Glass Doors
Sliding doors in Redwood City ranch homes take a beating from the same UV that degrades window seals. Tracks wear, rollers flatten, and frames rack out of square on older post-war slabs. We replace impact sliding glass doors with full-frame retrofits that correct the rough opening, not just the door panel. For homes on the 94061 grid where the original opening was never flashed correctly, the full-frame route is the only way to stop water intrusion at the jambs during those rare heavy rain events Redwood City gets each winter.
Impact Garage Doors
Garage doors on Redwood City’s 1940s-1960s homes are often original to the house, and most were never load-rated for wind. We install impact-rated garage doors that meet current wind mitigation requirements while staying quiet enough for a neighborhood where houses sit tight to the property line. The older the garage, the more likely we’ll need to address the header and jamb framing before the new door goes in. We scope that before quoting so it’s not a surprise line item on the bill.
Wind Mitigation & Code Compliance
California Title 24 energy codes apply to every window and door replacement in Redwood City, and the 94061 ZIP has a lot of original glass that’s now squarely non-compliant. We pull permits, pass inspections, and document the wind mitigation upgrades that can matter for your insurance premium. Redwood City’s permitting process for window replacements moves faster than some Peninsula neighbors, but the compliance requirements are stricter than they were even ten years ago. We handle that so you don’t have to learn the energy code by accident.
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.
Trusted Brands We Service in Redwood City
We’re an authorized installer for more than a dozen manufacturer lines, and in Redwood City we most often quote PGT, CGI, and ES Windows for impact applications. We stock common hardware and glazing components for these lines locally, which means faster turnaround when a Redwood City homeowner needs a sash replaced or a lock mechanism rebuilt. When we quote PGT side by side against CGI, you see the actual differences in glass package, frame extrusion, and warranty terms written on paper. That’s how a square deal works.
Common Impact Windows & Doors Problems We See in Redwood City Homes
- Original steel-sash casements that can’t be re-glazed. On a 1952 ranch near the downtown grid, our crew pulled original steel-sash casement windows whose replacement hardware is effectively unobtainable, a common Redwood City surprise. Homeowners call expecting a simple re-glaze, but the only economical path is full-frame replacement.
- Seal failure from sustained UV exposure. Redwood City gets significantly less marine fog than Daly City, San Mateo, or Half Moon Bay, so UV degrades impact window seals and frames faster than residents expect from what they assume is a mild climate. Fog between panes is the telltale sign the seal is gone and the U-factor is dropping.
- Diurnal temperature stress on older impact glazing. The swing between hot sunny afternoons and cool Bay-influenced nights stresses seals on older double-pane and impact units. Once moisture gets in, the insulating gas is gone and the window no longer performs to spec.
- Flashing failures at jambs during heavy rain. Mid-century builders installed minimal window frames with poor flashing because they never expected real water load. When a Pine or Katmai rain system rolls through, the flashing tape at jambs is where water finds its way in, and it’s the first thing we check on any Redwood City window job.
Pricing for Impact Windows & Doors in Redwood City, CA
A typical impact window replacement in Redwood City runs $1,100-$2,400 per opening for full-frame work when the old steel-sash or single-pane aluminum has to come out entirely. Impact sliding glass doors run $3,500-$7,500 depending on track condition, header work, and whether the rough opening needs re-framing. Impact entry doors land at $2,800-$5,500, and impact garage doors run $4,000-$9,000 with wind-load rating. Full-home impact retrofits on a 1,500-square-foot Redwood City ranch typically fall between $22,000 and $45,000, with the final number driven by how many original openings need full-frame correction and whether we’re re-flashing jambs.
Every quote is a written line-item, and the price we quote is the price on the bill. No change orders unless you change the scope. Call (888) 635-0804 to schedule a free estimate, and we’ll send a technician who measures every opening twice and quotes manufacturer lines side by side on paper.
We Also Serve Cities Near Redwood City
Our crews work the entire mid-Peninsula, so if you’re in Atherton, Menlo Park, San Carlos, or Palo Alto, the same Redwood City crew handles your impact windows and doors with the same Keystone Standard. We dispatch locally and our estimators know the housing stock in each of these cities, from Atherton’s estate lots to the San Carlos hills. Call (888) 635-0804 and a live person will schedule your free estimate.
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 - Impact Windows & Doors in Redwood City
Redwood City gets significantly less marine fog than its coastal neighbors, which means sustained UV exposure degrades vinyl frames, glazing seals, and exterior door finishes faster than homeowners expect. The diurnal temperature swings between hot sunny afternoons and cool Bay nights also stress seals on impact glazing, so fog between panes shows up years earlier here than in foggy cities. If you’re seeing moisture inside your impact units, call (888) 635-0804 and we’ll tell you whether it’s a seal failure or something simpler.
Look at the window frame. If it’s steel, painted, and thin-profiled with a lever or crank that’s seized or stripped, you likely have original steel-sash casements from Redwood City’s early-boom construction era. Replacement hardware for these units is effectively unobtainable, and the only economical path is full-frame replacement. We see these constantly on the flatland blocks near downtown, and we’ll confirm what you have during a free estimate.
No. The city seal may claim the best climate, but California Title 24 energy codes apply to every window replacement in Redwood City regardless of how sunny the microclimate is. Caulking old single-pane windows does nothing for U-factor, air leakage, or wind-load rating, and it won’t satisfy code when you sell or pull permits. Impact windows with low-E glass and argon fill handle both the energy requirement and the wind mitigation benefit.
The edge seal on the insulated glass unit has failed, which lets moisture into the space between panes and releases the argon or krypton gas that provided the insulating value. In Redwood City’s high-UV pocket, seal failure happens faster than in foggy Peninsula cities, and once the glass is fogged, the unit’s U-factor drops below what Title 24 requires. The fix is a glass-unit replacement or full sash replacement, depending on the frame condition. Call (888) 635-0804 for an exact quote.
California Title 24 energy code governs all window and door replacements in the 94061 ZIP, and you’ll also need to meet local wind-load requirements for impact-rated openings. Redwood City’s building department reviews window replacement permits for compliance with current energy performance standards, which is stricter than what the original 1940s-1960s glass ever met. We pull permits, pass inspections, and register both warranty layers in writing before the truck leaves your driveway.
Call TruePane for Impact Windows & Doors in Redwood City
If your Redwood City home still has original single-pane windows, steel-sash casements, or a sliding door that binds in the summer heat, we’ll give you a straight answer about what it costs to replace them with impact-rated units that meet today’s code. Dale Kessler built TruePane on a rule that hasn’t changed: if the pane is not true, the job is not done. Call (888) 635-0804 to schedule your free estimate. A live person answers, and the quote you get is the price on the bill.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Redwood City and the mid-Peninsula.