Window Installation in San Francisco - Free In-Home Measure, Written Price

Fast, Reliable Window Installation Across San Francisco

Window installation in San Francisco costs between $850 and $4,200 per opening for most wood-frame homes, depending on the unit type and whether the existing jamb is still square. We’re the Window Installation team at Juniper Windows & Doors, and we work in the city’s Edwardians, Victorians, and mid-century flats every week. If you’re in the Sunset, Noe Valley, or Russian Hill and need a real written price before any work starts, call (682) 281-2168. Our crews know what SF inspectors look for, which matters more here than almost anywhere else in California.

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Why Juniper Windows & Doors Is San Francisco’s Preferred Window Installation Company

San Francisco window work pivots on something most national window brands never mention: the Department of Building Inspection. In pre-1940 wood-frame buildings, which covers a huge share of the city’s housing stock, even a like-for-like replacement triggers a permit review because the seismic attachment detail has to be documented. We pull those permits, schedule the inspection, and make sure the jamb anchor detail passes the first time. That’s not marketing language. It’s the difference between a window that’s legal and one that stalls a sale five years from now when the disclosure packet gets reviewed.

Every estimate we write for a San Francisco job includes the permit line item. No vague “we’ll handle it” note. The line item is there, in writing, before you sign. Sean Mackey, who leads our team, has built the company around exactly this kind of specificity. And we back the whole installation with the 365-Day Done Right Promise: if the work isn’t right, we make it right for a full year, parts and labor, in writing.

When we arrive in San Francisco, you’ll know who’s walking through the door. Our technicians are background-checked and uniformed. You’ll get a live arrival time you can track, before-and-after photos of every job, and a digital invoice you can pay from a link. The Relay Visibility Guarantee isn’t a slogan; it’s how we run every project.

Casement Windows in San Francisco

Casement windows in San Francisco are the strongest choice for bayside exposure and hillside homes where the wind off the Pacific or the Bay hits the west-facing rooms hard. These windows hinge at the side and crank outward, which means they seal tighter than any sliding sash when closed. We install them in homes from the Marina to Bernal Heights, and a typical casement unit runs $1,100 to $2,800 per opening in the city.

Why San Francisco Homes Suit Casements

The crank mechanism lets you catch the morning breeze off Ocean Beach from a west-facing bedroom without the sash banging in the wind. And because the sash presses into the frame, casements cut the street noise from corridors like 19th Avenue or Van Ness more effectively than double hungs. We spec low-E insulated glass on nearly every casement install in San Francisco because the marine layer burns off quickly and west-facing rooms take direct afternoon sun.

Installation Notes for Casement Units

Casements need a solid jamb anchor, especially in pre-1940 framing where the rough opening may have drifted out of square. We square, shim, and anchor each unit to the seismic attachment standard the city inspector expects. The hardware gets adjusted on site so the crank turns easily and the sash locks tight.

Double Hung Windows in San Francisco

Double hung windows in San Francisco are what most homeowners picture when they think of a traditional sash window, and for good reason. Both sashes move, so you can open the top and bottom for ventilation without sacrificing the look of the original. A standard double hung install in a San Francisco Victorian or Edwardian runs $850 to $2,200 per opening, depending on size and whether the jamb needs correction work.

Ventilation and Fog Control

San Francisco’s fog and marine air make condensation control a real factor in window selection. Double hungs let you open the top sash to release warm, moist air while the bottom stays closed, which helps in older flats with no mechanical ventilation. We’ve replaced countless fogged double hungs in the Inner Richmond and the Castro where the old single-pane seals had failed years before.

Working With Old Framing

Double hung retrofits in pre-1940 San Francisco homes often involve an out-of-square jamb. Decades of settling leave the opening wider at the bottom or skewed side to side. We correct that with shims and a proper nailing flange or mounting strip, never with caulk and a prayer. The result is a sash that moves smoothly and latches cleanly, not one that binds in July.

Trusted Brands We Service in San Francisco

We install windows from CGI, CWS, and ECO Window Systems, among the eight product lines we carry. For San Francisco specifically, that matters because the city’s housing stock demands options: a narrow Victorian jamb in the Mission needs a different frame depth than a 1950s rancher in the Excelsior. We stock the hardware, balances, and sash components for these lines locally, so warranty work and adjustments don’t wait on a warehouse across the country. If you’re leaning toward a specific brand but want an honest read on whether it fits your home, ask us. We’ll tell you straight.

Common Window Installation Problems We See in San Francisco Homes

• Skipped permits on like-for-like replacements in pre-1940 wood-frame buildings. The Department of Building Inspection still requires a permit because the seismic attachment detail has to be documented. An unpermitted window can surface during a sale and delay or derail the whole transaction.
• Out-of-square jambs in Edwardian and Victorian framing. When the existing opening has drifted, a new sash binds, leaks, or won’t latch within a season. We correct the opening before the unit goes in.
• Units specified without a seismic-rated anchor and flashing detail. Aluminum and vinyl windows still need proper attachment for our mild-but-shaky climate. The city’s attachment inspection checks exactly this.
• Fogged glass from failed seals in coastal zones. The Outer Richmond and Sunset see heavy marine air, and single-pane or failed-seal units fog quickly. We replace them with low-E insulated glass that holds up to the humidity cycles.

Pricing for Window Installation in San Francisco, CA

We Also Serve Cities Near San Francisco

Beyond San Francisco, our crews handle window installation in Daly City, Brisbane, Sausalito, and South San Francisco. The permitting rules shift once you cross the county line, so we handle each city’s process separately. If you’re in one of those areas and want a written price, call (682) 281-2168.

FAQs About Window Installation in San Francisco