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 Window Replacement Across San Francisco
Window replacement in San Francisco means navigating three things at once: a house that’s often 80-plus years old, a coastal climate that punishes cheap seals, and a building department that wants documentation before you touch a sash. Juniper Windows & Doors handles all three. We’ve replaced windows in Noe Valley Victorians, Outer Sunset row houses, and Pacific Heights flats, and we know which jobs trigger historic review and which need lead-safe containment. Sean Mackey runs our window and door division, and every project starts the same way: a written price, a real schedule, and a live person at (682) 281-2168 if you have questions.
Why Juniper Windows & Doors Is San Francisco’s Preferred Window Replacement Company
San Francisco homeowners don’t tolerate vague answers. The fog and wind off the Pacific find every weak seal, and a wrong window choice shows up fast as condensation between panes or a draft you can feel from across the room. We replace windows that actually suit this climate, from ViewLux for clean modern sightlines to PGT impact-rated units when a property sits on a west-facing slope that catches every storm. Our customers in neighborhoods like Glen Park and the Richmond District keep telling us the same thing: the number we quote is the number they pay.
The 365-Day Done Right Promise covers every installation in writing, parts and labor, for a full year. If a window doesn’t operate smoothly or a seal fails, we return and fix it. No charge, no argument. And because every Juniper job is booked through The Relay Standard, you get a live arrival time you can track from your phone, before-and-after photos, and a digital invoice you can pay with a link. You’ll know exactly who’s walking through your San Francisco door: a background-checked, uniformed technician who carries the same written quote you approved.
We’ve been part of the Relay Home Co. family since 2001, and Window Replacement is all we do. No kitchens, no additions. Just windows, doors, and the building science that makes them perform.
Window Sash Replacement in San Francisco
Window Sash Replacement is often the smartest move for a San Francisco home where the frame is still square and dry, but the moving panels have rotted, warped, or lost their seal. We replace the sash itself, the operable part that holds the glass, while leaving the existing jamb and trim in place. It’s a common job in pre-war construction where the original frames are solid fir worth keeping. In San Francisco, a sash replacement typically runs $450 to $1,100 per sash depending on the species of wood, the glass package, and whether lead-safe containment is required.
What Sash Replacement Involves
We take measurements of the existing sash and check the jamb for square and plumb. Then we order or mill the new sash to match the original profile, install new balances or weight systems, and fit the glass unit. For a Noe Valley Victorian on a prominent corner, we match muntin profiles and hardware so the window looks like it grew there. The result is a smooth-operating sash with modern low-E glass that doesn’t disturb the look of the facade. If the original frame is out of square by more than a quarter inch, we’ll tell you before we fabricate anything, because that changes the fix.
Lead-Safe Protocol on Pre-1978 Homes
San Francisco has the highest concentration of pre-1978 housing of any major California city. Any sash replacement that disturbs painted surfaces on those homes falls under EPA Renovation, Repair, and Painting rules, and our crews are certified lead-safe. We run plastic containment, use HEPA filtration, and clean with verified methods. It adds cost and time, but skipping it fails inspection and puts everyone in the house at risk. We budget it into every San Francisco quote where the home’s age calls for it.
Window Glass Repair in San Francisco
Window Glass Repair in San Francisco usually means one of two things: a cracked pane from an errant branch or a failed insulated glass unit that’s fogged between panes. If the sash is sound, replacing only the glass is faster and cheaper than a full window swap. In San Francisco, glass-only replacement runs $180 to $550 per pane for standard double-pane units, and $650 to $1,400 for fogged IGUs in wood sash where we have to route the old glazing out and re-glaze. Impact-rated glass from PGT runs higher, and it’s worth it if the window faces a wind-driven exposure.
Fogged Insulated Glass Units
A fogged IGU isn’t just cosmetic. The unit has lost its argon fill and the desiccant inside the spacer has saturated, so the insulating value is mostly gone. On San Francisco’s west side, where morning fog and afternoon wind cycle temperature fast, failed seals show up within five to ten years on cheap units. We replace the IGU and upgrade to low-E where the frame allows. The sash stays, the glass gets better, and the draft stops.
Impact-Rated Glass for Exposed Facades
Some San Francisco homes, especially mid-century builds out near the Presidio or on slopes facing the Bay, catch wind-driven rain hard. Impact-rated glass, built to resist wind-borne debris without shattering, makes sense there. We stock PGT and CGI units for this exact application. The frame may need a reinforcing receiver, which we’ll spec and price before work starts. No one should discover a $400 necessary upgrade at install time.
Trusted Brands We Service in San Francisco
We install and service eight product lines, so the right window for a San Francisco house is never a compromise. PGT and CGI give us impact-rated options when a project needs coastal storm performance. CWS covers architectural-grade thermal breaks for high-end renovations. ViewLux is our go-to for clean lines on modern remodels. Juniper keeps local parts inventory in the Bay Area, which means shorter lead times for San Francisco customers, whether you’re restoring a Victorian sash or replacing a failed IGU in a Marina district condo.
Common Window Replacement Problems We See in San Francisco Homes
- Historic review surprises. A homeowner orders windows, then Planning flags the change as a visible alteration to a contributing structure. That triggers discretionary review and can push the calendar out eight to twelve weeks. We check the Planning database before we quote so this doesn’t ambush you mid-project.
- Dry rot at the sill and jamb corners. Fog and wind-driven rain work on wood over decades, especially in the Outer Richmond and Sunset where the marine layer sits. A replacement that skips the rotted sill just gives the new window a failing foundation. We assess the frame before any sash comes out.
- Lead-paint containment issues. Pre-1978 homes require lead-safe practices. Cut corners fail inspection and contaminate the home. Our crews run full containment and HEPA filtration on every job that triggers the rule.
- Wrong glass for western exposure. A standard dual-pane unit in a west-facing San Francisco flat turns the room into a solar oven by 3 p.m. We recommend low-E coatings tuned for solar control on those elevations, and we price it into the estimate so you’re not surprised.
Pricing for Window Replacement in San Francisco, CA
Window replacement in San Francisco runs a wide but predictable range. A straightforward insert replacement in a standard opening runs $850 to $1,800 per window. Full-frame replacement, where we pull the old frame down to rough opening and install new flashing and interior trim, runs $1,600 to $3,600 per window depending on material, access, and whether lead-safe containment applies. Sash replacement runs $450 to $1,100 per sash. Glass-only repair runs $180 to $550 per pane. The big drivers here are Planning review, lead-safe protocol on pre-1978 homes, and access, because many San Francisco homes are tight side-by-side row houses where staging materials is a puzzle. Every estimate is a written, line-item price before any work starts. Call (682) 281-2168 and we’ll scope your project honestly.
We Also Serve Cities Near San Francisco
Our crews work throughout the San Francisco Bay Area. If you’re in Daly City, Brisbane, Sausalito, or South San Francisco, the same written-price guarantee and 365-Day Done Right Promise apply. Each Juniper location is independently owned and operated under The Relay Visibility Guarantee, and you’ll get the same live arrival time and photo updates on every job. For window expertise in any of these cities, reach our Window Replacement team directly.
Serving San Francisco, CA - Our Local Coverage Area
We’re based in the San Francisco 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 Replacement in San Francisco
Yes, most visible window changes in San Francisco require a building permit, and if your Victorian is a designated historic resource or in a historic district, the Planning Department may require historic-alteration review before you can proceed. A like-for-like sash or glass repair sometimes falls under ordinary maintenance, but a full window or frame change usually doesn’t. We’ll check your property’s status during the estimate and tell you exactly what the approval path looks like. Call (682) 281-2168 for a free estimate that includes the permit picture.
From signed contract to installed windows, most San Francisco projects run four to ten weeks. Custom sash matching a Victorian profile can add three to four weeks of fabrication time, and historic review can add another eight to twelve weeks if Planning requires it. In-place glass and sash repairs are often done in a single day once materials arrive. We’ll give you a calendar in writing before work begins, with the approval path mapped out.
Three things drive cost in San Francisco more than anything else: lead-safe containment on pre-1978 homes, historic-alteration review for visible changes, and access on tight urban lots. Material choice matters too, with custom wood sash running higher than inserts. As a benchmark, inserts run $850 to $1,800 per window, full-frame replacements $1,600 to $3,600, sash replacements $450 to $1,100, and glass-only $180 to $550 per pane. For an exact quote on your specific building, call (682) 281-2168; estimates are free and written.
Yes, and in San Francisco it’s often the better path. If the frame is square, dry, and structurally sound, we replace the sash or the glass unit only. That preserves the original look of a Victorian or Edwardian facade, satisfies less stringent review in some cases, and costs substantially less than a full-frame replacement. We’ll assess the frame condition at your estimate and tell you honestly whether a partial replacement will perform long-term.
On a properly scoped project, very little changes. The things we sometimes uncover are hidden dry rot behind the trim, an out-of-square rough opening that requires reframing, or lead paint on surfaces we couldn’t see until the old window came out. Because every Juniper quote is a written, line-item price, you approve any additional scope in writing before we proceed. No estimate that morphs into a surprise invoice, ever. Call (682) 281-2168 to schedule a free estimate and we’ll walk you through exactly what we inspect before quoting.
Written by Sean Mackey, Owner at Juniper Windows & Doors, serving San Francisco since the brand’s founding in 2001 as part of the Relay Home Co. family.