Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree 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 | San Bernardino Contractors
We provide independent ECO Window Systems construction and repair across San Francisco, from the fog-heavy rows of the Richmond to ECO Window Systems in Mission District and beyond. What makes our work here different is that we treat every ECO unit as part of a wall assembly, not a standalone product. On a pre-1940s wood-frame house in San Francisco, the window is only as good as the flashing, sill plate, and rough opening behind it. That is the work we do every week, and you can reach us at (855) 473-5620 for a free estimate.
San Bernardino Contractors is a full-service our General Contractor in San Francisco, and our ECO Window Systems service folds into that scope. Roofing, siding, kitchens, bathrooms, ADUs. One contractor, every phase. We are not authorized, endorsed, or partnered with ECO Window Systems. We are an independent service provider, which means we tell you when a unit is worth repairing and when the real problem is behind the frame.
Ruben Castillo, our owner, grew up on San Bernardino’s Westside watching his uncle reroof houses and frame garages on a tight budget. If it’s not built right the first time, you’re just paying for it twice. That applies double in San Francisco, where the damp and the planning department both punish shortcuts.
Why San Francisco Residents Choose Us for ECO Window Systems Service
You can walk into any supply house and buy a window. What you cannot always find is a crew that understands how an ECO vinyl unit behaves when it is set into a 100-year-old redwood opening on a 25-foot lot. We work on ECO Window Systems sales & service projects throughout San Francisco, and we speak the material language: Low-E insulated glass, sash balances, back dams, sill pans, muntin profiles.
Ruben spent his apprenticeship reading plans and understanding load paths at San Bernardino Valley College, then spent two decades doing framing, concrete, and whole-home remodels across the Inland Empire. That background matters when an ECO replacement insert goes over a rotted sill plate and the real fix is structural, not cosmetic. Most of our clients find us by referral, often from a neighbor on the same block who watched our crew clean up after themselves.
We carry OEM ECO glass and hardware where the profile is still available, and we stock quality aftermarket balances and weatherstripping for units where the OEM part is discontinued. You pick the brand and the finish level. We handle the build, the permit, and the flashing detail.
Styles & brands we work with







Common ECO Window Systems Construction Problems We Solve in San Francisco
- Fogged insulated glass from the marine layer. In the fog belt around ZIPs 94102 through 94111, we routinely see ECO dual-pane units fog within 10 to 15 years of an exterior-wall install. The marine air drives moisture into any seal break, and once the argon escapes, the unit is done. We replace the IGU with OEM-matched glass when available, then address the opening so it does not happen again.
- Perimeter leaks on wood-frame Victorian and Edwardian walls. Many ECO units were set with a caulk bead and no sill pan. On a foggy southwest elevation, wind-driven rain finds that joint. Water enters at the frame-to-wall connection, not through the glass. The fix is through-wall flashing and a proper back dam, not more caulk.
- Rotted sill plates under original flush-mounted openings. A replacement ECO insert over a decayed sill plate is the most common call we take for a “new window leaking” in San Francisco. The glass is fine. The wood behind it is gone. We sister the opening, re-flash, and set the unit to the original rough opening.
- Racked frames and binding sashes in soft-story buildings. Apartments and houses over garages flex at the garage level. When the framing moves, ECO vinyl frames go out of square. Sashes stop latching, weatherstripping pulls away. You can force a new balance in, but until the soft-story issue is addressed, the window will bind again.
- Sliding glass door tracking failures in damp conditions. ECO patio sliders and horizontal sliders near the ocean pick up salt and grit. Rollers wear out, tracks deform, and the door starts dragging. We rebuild the track, replace rollers with heavy-duty aftermarket parts when the OEM piece is discontinued, and re-square the frame.
ECO Window Systems Service in San Francisco: What Local Conditions Mean for Your Equipment
Here is the thing about San Francisco that most window contractors from outside the city do not understand. Even a like-for-like ECO replacement on a pre-1940s Victorian or Edwardian row can get flagged for historic-resource review. If the visible profile, muntin pattern, or frame color changes on a street-facing elevation, the project can stall at SF Planning before any glass is ordered. This is not a permit-desk formality. It is a block-by-block evaluation, mandated under CEQA, and it dictates the schedule more than any trade does.
On a narrow Edwardian row in 94109, our crew replaced failing ECO double-hung units facing the street. Fogged IGUs and condensation had run down the sashes for years. Pulling the first frame exposed a rotted sill plate and a caulk-only seal with no sill pan. We sistered the opening, re-flashed the rough opening against wind-driven rain, and set new ECO units sized to the original redwood opening rather than to a standard flange. We matched the street-facing profile so the historic row review did not stall the job, and we kept the rear-elevation work moving while the marine layer sat over the city. That is what local means here: knowing that the window order waits on the profile match, not the other way around.
ECO Window Systems Models & Products We Service in San Francisco
We work on the ECO product lines most common in San Francisco’s housing stock: vinyl single-hung and double-hung replacement units, horizontal sliders and fixed picture window combinations, picture and casement units with Low-E insulated glass, and ECO sliding glass doors and patio sliders. Most of what we see on pre-war rows are double-hungs and picture-casement combinations on the street-facing elevation, with sliders on rear additions.
Our parts approach is honest. We use OEM ECO Window Systems glass and hardware where the unit is worth repairing and the profile is still in production. Where the OEM part is discontinued or priced unreasonably, we use quality aftermarket sash balances and weatherstripping, and we tell you which one you are getting and why. On San Francisco pre-war walls, a straight glass or seal repair often hides failed flashing. Our stance is simple: fix the wall opening and flashing first, then the window. A like-for-like swap without re-flashing is paying for a symptom.
See the difference
Before
After
Before
After
Before
AfterECO Window Systems Service Pricing in San Francisco
Window work in San Francisco is priced by the condition of the opening, not just the unit. A clean swap on a modern opening costs less than a replacement that involves sistering rotted framing, re-flashing a party-wall elevation, and coordinating historic review. The table below reflects what we typically see across San Francisco. Every estimate is free and line-itemed, so you know what the wall work costs versus the glass.
| Service | Typical Range in San Francisco |
|---|---|
| Window Replacement | $5,310 – $17,700 |
| Impact Window Installation | $9,440 – $29,500 |
| Roof Repair | $470 – $2,125 |
| Kitchen Remodel | $16,520 – $53,100 |
| Bathroom Remodel | $10,620 – $33,040 |
The cost drivers are the size of the opening, the condition of the sill plate and surrounding framing, the historic-review status of the elevation, and whether you want builder-grade or ultra-premium glass. Call (855) 473-5620 for an exact quote. The estimate is free, and we will tell you straight if the window is not the real problem.
Serving San Francisco, CA — Our Local Coverage Area
We’re based in the San Francisco area and know this community well, including ECO Window Systems service in Noe Valley. 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
Yes, it can. If your building is pre-1940 and the window faces the street, a change to the visible profile, muntin pattern, or frame color can trigger historic-resource evaluation through SF Planning. Even a like-for-like ECO replacement needs the profile matched to the existing opening. We size the unit to your original rough opening and match the profile before ordering glass, so the review step does not stall the job. Call (855) 473-5620 and we will tell you what your specific block requires.
Because the leak is almost never in the glass. On San Francisco’s wood-frame Victorians and Edwardians, the usual culprit is a rotted sill plate or missing sill pan behind the frame. Rain hits the southwest elevation, runs down the wall, and enters at the frame-to-wall joint. We pull the frame, sister the rotted wood, install through-wall flashing with a back dam, and reset the unit. Caulking over it will not fix it.
In many cases, yes. If the sash and frame are square and the seal failure is the only problem, we can replace the insulated glass unit with OEM-matched ECO glass. If the frame is racked, the weatherstripping is pulling away, or the sill underneath is rotted, then glass-only is a temporary fix. We will tell you which situation you have before you spend money. Estimates are free at (855) 473-5620.
The window is out of square because the building is moving. Soft-story framing over a garage flexes, and when the garage-level structure shifts, the ECO vinyl frames above go out of square. Sashes bind, latches miss, weatherstripping pulls away. Replacing the slider without addressing the soft-story movement means the new unit will bind within a few years. We assess the framing first and tell you what the real fix costs.
Carefully, and with the neighbors notified. On narrow lots, party-wall access, dust and noise notices, and neighbor sign-offs are part of the job scope. We stage materials where we can, sometimes through the interior, and we coordinate with the adjacent property owner before we touch a shared wall. For a rear addition or window work on a shared elevation, neighbor consent can be the deciding factor before any work begins. We handle that conversation as part of the project.
Service Areas Near San Francisco
We serve San Francisco’s core ZIPs including 94139, 94140, 94141, and 94142, and we work with homeowners across the broader Bay Area. For our deeper San Francisco service area details, you can see the neighborhoods and blocks we cover week to week. We also provide ECO Window Systems service in Chinatown, where the historic-resource rules are among the strictest in the city, and ECO Window Systems service in Tiburon for Marin County clients on the other side of the bridge.
Book Your ECO Window Systems Service in San Francisco Today
If your ECO windows are fogging, leaking, or binding in areas like Visitacion Valley ECO Window Systems service, call us at (855) 473-5620. We will schedule a free estimate, walk the openings with you, and tell you whether the fix is glass, framing, flashing, or all three. No subcontractor shuffle. One contractor, every phase, from the roof down to the pavers.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving San Francisco with independent ECO Window Systems construction and repair.