







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
ECO Window Systems Construction in San Francisco, CA | Mason Remodeling
We provide independent ECO Window Systems construction, repair, and replacement service across San Francisco, from the Sunset to Bernal Heights to the Richmond. We are not an authorized ECO Window Systems dealer, which means our only loyalty is to doing the fix that actually holds up in this city’s fog, wind, and prewar framing. If you need ECO Window Systems windows or doors installed, repaired, or retrofitted in San Francisco, call (803) 680-2547 for a free estimate, written in plain terms before any work starts.
Why San Francisco Residents Choose Us for ECO Window Systems Service
Most window crews in San Francisco know how to swap glass. Fewer know what a Series 7000 double-hung does after three years of daily fog cycling on a west-facing Sunset wall, or why a 6000 Series slider leaks even though the glass looks fine. We work on ECO Window Systems products every week, which means we recognize the failure before it becomes a rot problem or a $900 utility bill. Isaac Pruett, our owner, grew up around finish carpentry and spent years on General Contractor - San Francisco projects across California before founding Mason Remodeling in 2004. He checks the trim work on every job before it’s done, because sloppy trim is the first thing a homeowner notices and the last thing a pro should tolerate. When we send a technician to your San Francisco home, you get their name and photo before they arrive, and they show a photo ID badge at the door. That’s the Threshold Standard, and it applies to every job we run.
Styles & brands we work with







Common ECO Window Systems Construction Problems We Solve in San Francisco
- Sticky sashes and drafty seals on Series 7000 double-hungs. San Francisco’s low-angle afternoon sun hits west- and south-facing elevations hard, then the fog rolls in and temperatures drop fast. That daily expansion and contraction cycle warps vinyl sashes just enough to bind in the frame or let air whistle past the weatherstripping.
- Fogged glass and sill rot on 6000 Series sliders. Marine-layer humidity and wind-driven rain at the coast push water past worn pile seals on older sliders. By the time you see fog between the panes, the glazing gasket has likely failed and the sill under the track may already be soft.
- Painted-shut sash locks and failed balance shoes on 3000 and 7000 Series units. In pre-1940 San Francisco buildings, window openings were rarely square when the ECO units went in. A painted-shut lock or a balance shoe that lets one side of the sash drop is usually a framing-alignment symptom, not just a hardware failure.
- Insulated glass unit seal failure on ocean-facing windows. When warm, humid air from a kitchen or bath meets cold exterior glass on a Pacific-facing wall, the thermal stress eventually breaks the IGU seal. Condensation between the panes is the tell. Repairs only work if the frame is still sound.
- Water intrusion at the head flashing on retrofit installations. San Francisco homes built before 1940 often had no head flashing over window openings. If an ECO unit was dropped in without adding flashing, wind-driven rain finds its way behind the trim and into the wall cavity. We fix the flashing, then the window.
ECO Window Systems Service in San Francisco: What Local Conditions Mean for Your Equipment
Here’s the thing most window companies in San Francisco won’t tell you on the phone. The city’s pre-1940 wood-frame housing stock, the single- and two-family buildings that fill the Sunset, the Richmond, and Bernal Heights, was framed with rough openings that were never meant to hold a modern vinyl window. They’re out of square, sometimes by half an inch or more. The framing has settled over 80 years, and the coastal air has done its work on the original sills and jambs. So when an ECO Window Systems unit goes into one of these openings, it needs custom shimming, flashing, and trim work, not a drop-in swap. That irregular framing, combined with San Francisco’s fog belt and seismic movement, is why we treat every ECO window job here as a water-management and structural-alignment problem first and a glazing problem second. Get the flashing and alignment wrong, and the best window on the market leaks inside the wall where you can’t see it until the drywall stains. In a neighborhood like the Outer Sunset, where the fog sits heavy and the wind comes straight off the Pacific, a badly flashed window will fail in its first winter.
ECO Window Systems Models & Products We Service in San Francisco
We install, repair, and retrofit the full ECO Window Systems line that shows up in San Francisco homes: the Series 7000 vinyl double-hung replacement windows, the 6000 Series sliding glass doors, the 3000 Series single-hung and fixed picture windows, and the 8000 Series tilt-and-turn and casement windows. When a unit needs hardware, balances, sash locks, or a new IGU, we source genuine ECO Window Systems sales & service parts when they’re available and lead times make sense. When OEM parts are backordered for weeks, we use dimensionally matched aftermarket weatherseal, glazing gaskets, and roller assemblies so a sticky slider or a drafty double-hung doesn’t sit leaking all winter. For San Francisco homeowners, that practical parts approach usually means a repair happens days sooner. If you’re looking for ECO Window Systems products and want to know what a full installation or replacement would involve, we’ll walk you through the line item by line item, before anything is ordered.
See the difference
Before
After
Before
After
Before
AfterECO Window Systems Service Pricing in San Francisco

Window and door pricing in San Francisco runs higher than the national average because the housing stock is older and the access is harder. Steep streets, tight parking, and Victorian-era framing all add labor time, and labor is the biggest line item in any window job. Here’s what our typical ECO Window Systems work falls into:
| Service | Typical Range in San Francisco |
|---|---|
| Window Replacement | $5,310 – $17,700 |
| Impact Window Installation | $9,440 – $29,500 |
| Roof Repair | $470 – $2,125 |
Those ranges reflect real San Francisco conditions: out-of-square openings, stucco or shingle cladding, lead-safe containment on pre-1978 buildings, and permit fees where they apply. A free estimate from us is a written number, not a ballpark. We measure, we check the framing, we check the flashing, and we tell you exactly what it costs before any work starts. Call (803) 680-2547 to schedule yours.
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 – ECO Window Systems Construction in San Francisco
We do both. A sagging balance, a failed sash lock, worn weatherstripping, or a fogged IGU on a Series 7000 or 6000 Series unit can often be repaired without replacing the whole window, as long as the frame and sash are still dimensionally stable. When the frame is warped or the IGU has failed on a coastal exposure, we’ll tell you honestly whether a targeted repair is worth the money or whether full window replacement is the better long-term call. Call (803) 680-2547 and we’ll assess it in person, with a written recommendation either way.
Most leaking 6000 Series sliders in San Francisco are losing water at the pile seal, the glazing gasket, or the sill flashing, and wind-driven rain from the ocean makes all three worse. The pile seal wears flat after years of sliding, the gasket dries out from salt air, and if the sill flashing wasn’t done right at the original install, water gets under the track and into the subfloor. We fix the seal path and the flashing, not just the visible trim. Call (803) 680-2547 for a free leak assessment and a written fix-it price.
Yes. Prewar San Francisco openings are rarely square and rarely standard, so we shim, flash, and trim every ECO unit to the existing stucco, shiplap, or wood trim rather than forcing the opening to the window. The job includes custom jamb extensions and casing work where the new unit sits differently than the old one. That’s standard for us in neighborhoods like the Richmond and the Sunset, where the houses were framed before standardized window sizes existed. Call (803) 680-2547 and we’ll talk through your specific openings.
Condensation between the panes means the insulated glass unit’s seal has failed. In San Francisco, the usual trigger is thermal stress: warm interior air from a kitchen, bath, or heater meets cold exterior glass on a fogged-in Pacific-facing wall, and over time the seal between the panes gives out. If you’re dealing with moisture issues, our San Francisco Bathroom Remodeling team sees similar condensation patterns in older homes. Once the seal is broken, the only real fix is replacing the IGU or the sash, and we stock common ECO sizes for faster San Francisco turnaround. Call (803) 680-2547 and we’ll confirm whether your unit can be reglazed or needs a new sash.
It depends on the scope. Like-for-like window replacement in a single-family or two-family San Francisco building often falls under simple repair or replacement and may not require a full building permit, but any change to the opening size, structural framing, or a building designated as historic will trigger permit review through the San Francisco Department of Building Inspection. We handle the permit paperwork and pull permits when they’re required, and we never skip them to save a day. Call (803) 680-2547 and we’ll tell you whether your specific job needs one.
Service Areas Near San Francisco
We serve San Francisco service area neighborhoods including the Outer Sunset, the Richmond, Bernal Heights, and Noe Valley, and we take on ECO Window Systems work in nearby Bay Area communities from San Jose to the Peninsula. For homeowners further inland, we also run ECO Window Systems crews in ECO Window Systems service in Fresno and ECO Window Systems service in Sacramento. If you’re within San Francisco or just outside, call and ask.
Book Your ECO Window Systems Service in San Francisco Today
Need a fogged Series 7000 replaced before the next storm, or a leaking 6000 slider fixed before it rots the sill? Call (803) 680-2547. We’ll send a named, photo-verified technician, put the price in writing, and stand behind the job for 365 days from the day it’s done. Know who’s coming, know what it costs, know it’s backed up. Everything else is just noise.
Written by Isaac Pruett, Owner at Mason Remodeling, serving San Francisco since 2004.











