Precision window retrofits for coastal homes

Each home in San Francisco faces different weather exposures and historical zoning guidelines. We configure window framing to match your exact exterior specifications.

Precision Insert Replacement

Full-Frame Window Installation

Sound Dampening Glass

Upgrade drafty single-pane glass into high-efficiency double-pane units without tearing out historical interior moldings or exterior trim.

Complete rough-opening rebuilds with moisture-barrier flashing designed for coastal wind loads, exterior siding integration, and structural stability.

Specialized laminated panes and asymmetric glass thicknesses engineered to block traffic hum, Muni transit lines, and coastal wind vibration.

Sealed against Pacific fog

San Francisco's dense marine layer exposes residential framing to persistent humidity and temperature drops. Our installations incorporate marine-grade silicone caulking, dual-fin weatherstripping, and warm-edge spacers to keep moisture outside your walls.

By laser-measuring existing sashes down to the sixteenth of an inch, we achieve tight tolerances that eliminate cold air drafts while preserving original sightlines on historical homes.

Our installation workflow

Direct Consultation

Laser Measurement

Clean Installation

Thermal Check

We review your home dimensions, target glass performance, and municipal requirements without multi-hour sales presentations.

Our technicians record exact frame openings to account for settling, ensuring new sashes align cleanly with existing rough headers.

Old units are carefully removed, openings waterproofed with protective flashing membranes, and new assemblies anchored plumb and true.

We calibrate balance springs, test weather seals with draft gauges, and complete an exhaustive cleanup before final walk-through.

Speak directly with our Mission District window specialists to schedule an on-site measurement or discuss thermal glass options for your home.