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Mr-Glass Windows & Doors in San Francisco, CA | Sightline Windows & Doors
We provide independent Mr Glass repair in Oakland and throughout San Francisco, from the Outer Sunset to the Mission. The one thing that makes our Mr-Glass work here different: we repair first, because San Francisco’s historic preservation rules often make replacement illegal or cost-prohibitive. If you own Mr-Glass windows in a Victorian or Edwardian, call (509) 265-6387 before assuming you need new ones. We’ll tell you what’s fixable, what it costs in writing, and whether the Planning Code affects your options.
Why San Francisco Residents Choose Us for Mr-Glass Service
Most window companies in San Francisco don’t stock Mr-Glass parts. They’ll tell you to replace a sash when the real problem is a corroded balance rod or a worn roller assembly. Our crews carry Mr-Glass-specific hardware – balances, locks, roller assemblies, weatherseal profiles – because we service these lines constantly across the city. Sonia Raman, our owner, studied building construction technology and has spent two decades on Window Replacement in San Francisco, measuring, setting, and finishing installations. She built our Mr-Glass service practice on a simple rule: repair what’s sound, replace what isn’t, and document both in writing. When you call us about a Mr-Glass 3000 Series double hung that won’t stay up, the tech who arrives has likely fixed that exact failure in a flat three blocks from yours.
Common Mr-Glass Windows & Doors Problems We Solve in San Francisco

- Mr-Glass 3000 Series double hung windows that won’t raise or stay raised. In unheated Victorian rooms with wide temperature swings, the vinyl sashes flex slightly, and the spiral balance rods take the strain. Add salt-laden fog from the marine layer and you get rods corroded enough to bind inside the jamb liner.
- Mr-Glass Horizon horizontal roller windows that stick or skip. The roller track assemblies on these units oxidize fast in western neighborhoods like the Outer Sunset, where salt fog saturates exposed aluminum for months each year. The track looks fine; the rollers underneath are seized.
- Mr-Glass Vista casement windows with stiff or frozen operator arms. Original factory grease breaks down under constant moisture exposure. In the Richmond and Sunset, that means within three to five years, not ten. We clean, re-lubricate, or replace the operator depending on what the arm wear shows.
- Failed double-glazed Mr-Glass insulated glass units showing internal fogging. San Francisco’s damp microclimates push moisture into any seal weakness. Once the desiccant inside the spacer is saturated, no amount of exterior cleaning clears the fog. We replace the IGU, not the whole frame, when the sash is sound.
- Mr-Glass premium hurricane impact doors with worn weatherseal or binding hinges. These doors are heavy. In older San Francisco homes with settling foundations, the threshold gap shifts slightly, and the door starts to drag. We adjust, re-seal, and re-align without pulling the frame.
Before
AfterMr-Glass Service in San Francisco: What Local Conditions Mean for Your Equipment
Here’s the thing most Mr-Glass owners in San Francisco don’t realize until it’s too late: the Planning Code Articles 10 and 11 prohibit simple vinyl or aluminum replacement windows in many historic districts. That means if you own a Victorian or Edwardian with original wood sash windows and you’re thinking of swapping them for Mr-Glass vinyl, you may be legally required to keep the original sightlines – or go through a discretionary review process that can stretch for months. For a lot of homeowners, Mr-Glass window repair becomes the cheapest legal path for preserving an original wood sash line. We regularly rebuild sashes, re-putty glazing, and replace weatherseal in the Outer Richmond, the Inner Sunset, and the Mission specifically because replacement isn’t an option the city will approve. The same Planning Code that makes San Francisco’s streetscape so distinctive also makes repair expertise genuinely valuable here. A contractor in Daly City rarely has to think about any of this.
We learned this firsthand in the Outer Richmond. Our tech was called to an Edwardian flat where two Mr-Glass 3000 Series double hung windows had become impossible to raise. The salt-laden fog had corroded the spiral balance rods and swollen the original vinyl jamb liners. We replaced both with fresh Mr-Glass balances and added a marine-grade weatherseal that restored smooth operation all winter. The homeowner kept her original windows, skipped the discretionary review process entirely, and paid a fraction of what full replacement would have cost – even before permit fees.
Mr-Glass Models & Products We Service in San Francisco

We service the full Mr-Glass residential line: the 3000 Series vinyl single hung, Horizon horizontal roller windows, Vista casement windows, and the premium hurricane impact Door Installation - San Francisco series. For balances, locks, and roller assemblies, we use genuine Mr-Glass parts whenever they’re available – these components are engineered to specific tolerances, and aftermarket versions often cause more problems than they solve. On older Mr-Glass lines that the factory no longer supports, we install high-quality aftermarket weatherseal and hardware from suppliers whose specs we trust. Our service vans carry the common Mr-Glass parts needed for fast San Francisco turnaround, so most repairs happen in a single visit. If you’re comparing us to a generalist window company, check whether they stock Mr-Glass balances or whether you’ll wait three weeks for a part to ship. That’s the difference that actually shows up in your day.
Mr-Glass Service Pricing in San Francisco
Mr-Glass service in San Francisco typically lands between $185 and $480 per window for most repairs – balance replacements, roller assembly swaps, operator arm fixes, weatherseal replacement. A failed double-glazed IGU replacement usually runs $220 to $520 depending on glass dimensions and low-E coating, and full frame replacement for older Mr-Glass units starts around $900 per opening when repair isn’t economical. San Francisco’s permit costs and historic review requirements can add to that, which is exactly why we always check the Planning Code status of your address before recommending work. Every estimate you get from us is written, line-itemed, and based on the measured survey we do on site. Call (509) 265-6387 for your free estimate, and you’ll keep the survey whether or not you hire us.
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 - Mr-Glass Windows & Doors in San Francisco
In many cases, no – San Francisco Planning Code Articles 10 and 11 restrict window replacement in designated historic districts, and the city requires period-appropriate wood profiles or discretionary review before approving changes. Repairing your existing wood sash windows, including rebuilding them with Mr-Glass-compatible hardware where they’re already installed, is often the only path that doesn’t require city approval. We can tell you whether your address falls under these rules during a free estimate. Call (509) 265-6387 and we’ll check your address against the Planning Code before you spend anything.
Salt fog from the Pacific marine layer corrodes aluminum roller track assemblies faster in western San Francisco neighborhoods than anywhere else in the city. The oxidation builds on the roller bearings until they seize, and it happens gradually until one day the window won’t move. We replace the roller assembly, clean the track, and install a marine-grade lubricant that holds up better against salt exposure. Call (509) 265-6387 and we’ll give you a written price before any work starts.
We replace just the insulated glass unit (IGU) whenever the sash and frame are structurally sound. If your Mr-Glass window shows internal fogging between the panes, the IGU seal has failed, and in San Francisco’s damp microclimates it will continue to fog until the glass is replaced. A new IGU typically runs $220 to $520, which is far less than a full window replacement. We’ll tell you point blank if rot or frame damage makes full replacement the better financial call.
Yes. San Francisco’s Victorians and Edwardians are full of cantilevered bay windows, and we regularly service the Mr-Glass units installed in those openings. The load-bearing support beams underneath are often the reason the window binds or leaks, not the window itself. We inspect the support structure, check the window’s operation, and give you a written report on what needs attention. In San Francisco, bay window repair is structural work, not cosmetic, and we treat it that way.
If the sash moves freely and the frame shows no rot, repair is almost always the right call – and in historic districts it’s often the only legal call. If the frame is rotted at the sill, the glazing has failed, or the operational hardware is no longer supported, replacement may make more sense. We measure the sash, read the frame, and tell you what the numbers say. Call (509) 265-6387 for an estimate. The survey is yours to keep either way.
Service Areas Near San Francisco

We serve San Francisco and the surrounding Bay Area. If you’re in San Jose, Daly City, Oakland, Berkeley, or the broader peninsula, our San Francisco service area coverage may extend to your neighborhood. We’re part of the Sightline Windows & Doors network, so if you’re looking for Mr-Glass sales & service or Mr-Glass service in Fort Worth, you can find us there too. Our teams also handle Mr-Glass service in Fresno for Central Valley homeowners.
Book Your Mr-Glass Service in San Francisco Today
If your Mr-Glass windows or doors are binding, leaking, fogging, or just getting harder to operate, call (509) 265-6387. We’ll schedule a measured survey, give you a written price before any work starts, and leave you with your survey whether you hire us or not. Same-day appointments are available for urgent repairs in San Francisco.
Written by Sonia Raman, Owner at Sightline Windows & Doors, serving San Francisco since 2012. Measure once, write it down, then measure again.










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