Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Window Replacement Across San Leandro
Window replacement in San Leandro usually runs $450 – $1,850 per window depending on whether you need a custom retrofit sash for a 1950s tract home or a full-frame unit for a hillside mid-century. Our crews work the flats and the hills from Estudillo Estates to Bay-O-Vista every week, so we know exactly what happens when bay fog and salt air meet forty-year-old aluminum sliders. Call us at (252) 675-6980 and we’ll give you a written price before any work starts. That’s how we do every job in San Leandro, no exceptions.

Why Hale Windows & Doors Is San Leandro’s Preferred Window Replacement Company
We have been replacing windows since 2009, and our crew will tell you the same thing: San Leandro homes keep us honest. The east side ranch tracts and the hillside custom builds in Estudillo Estates each throw their own curveballs, from non-standard rough openings to original sashes that haven’t budged since the Nixon administration. When a San Leandro homeowner calls, we send a background-checked, photo-badged technician whose name and picture arrive before the truck does. That is the Threshold Standard and it is what our customers in San Leandro tell us they care about most: knowing exactly who is walking up the driveway.
Every window replacement in San Leandro gets a written price before work begins. Not an estimate that wanders upward once the wall is open. A written number, in your hands, before anyone picks up a tool. If the work is not right, the 365-Day Done Right Promise means we make it right, no argument needed. That guarantee is stamped on every San Leandro job we do.
Window Glass Repair in San Leandro
Window glass repair in San Leandro typically runs $120 – $380 per pane, depending on whether we are re-glazing a single double-hung sash on a 1948 ranch on Dutton Avenue or swapping the insulated glass unit in a fogged slider over in Castro Valley-adjacent neighborhoods. In San Leandro specifically, the marine air does something predictable: condensation gets between panes, the seal fails, and the glass fogs over. That is not always a full window replacement. Often it is a targeted glass repair we can complete same-day.
Seal Failure and Fogged Glass
Salt-laden bay air accelerates seal breakdown in double-pane units. When the inert gas escapes and moisture creeps in, you get that permanent haze no amount of window cleaner can touch. We replace the insulated glass unit, not the whole frame, whenever the existing sash and jamb are still sound. That saves San Leandro homeowners hundreds of dollars per window.
Cracked Panes in Older Sash Frames
A cracked pane in a 1950s wood double-hung can often be re-glazed in place, provided the sash is not rotted at the corners. Our crew will restore the glazing compound, reset the pane, and match the original putty profile so the repair disappears. If the wood is swollen or soft from years of dampness, we will tell you before we touch it.
Window Pane Replacement in San Leandro
Window pane replacement in San Leandro generally costs $150 – $500 per pane, and the price is set by what we find underneath the glass: sound framing or water-damaged sills, standard openings or the custom rough openings so common in the 1950s tracts south of downtown. The pane itself is usually the least complicated part. The condition of the sash and the jamb is what drives the job, and in San Leandro, that condition is often worse than it looks from the inside.
Single-Pane-to-Double-Pane Upgrades
If you have original single-pane glass in a wood frame, a pane replacement is the ideal moment to step up to double-pane with low-E glass (a thin coating that blocks heat while letting light through). We handle the sash routing and weight balancing, so the new, heavier unit does not cause the window to slam shut. The upgrade makes a real difference on those foggy San Leandro mornings when even the south-facing windows collect condensation.
Custom-Cut Panes for Non-Standard Openings
San Leandro’s 1940s and 1950s tract homes rarely have stock-size openings. When a pane fails in one of those original wood frames, the replacement has to be cut to the exact dimension of the sash, not pulled from a warehouse shelf. Our crew measures every opening twice before ordering the glass. That is the only way to keep the original stucco reveals intact and the weathertight seal working.

Trusted Brands We Service in San Leandro
We install and service eight professional-grade window and door lines, and for San Leandro’s climate we lean heavily on CGI, CWS, and ES Windows. These brands hold up to salt air and persistent dampness better than the builder-grade units you’ll find on a big-box shelf. When a San Leandro homeowner needs a replacement insulated glass unit for an existing PGT or Mr-Glass frame, we can often source and install it faster because we keep common local parts on hand. No brand-pushing. The right product for the job, quoted in writing before we order it. Visit our Window Replacement page to see the full brand list and service details.
Common Window Replacement Problems We See in San Leandro Homes
- Corroded aluminum sliders that seize shut. Salt air works on the tracks and rollers until the window will not move. We replace the hardware with corrosion-resistant components that actually last near the bay.
- Swollen or painted-shut wood sashes. Decades of marine moisture get into the wood and the next owner paints over it. The window looks fine until you try to open it. We restore the sash and jamb before setting any new unit.
- Hidden rot in the sill plate from failed waterproofing. What starts as a little condensation at the window base can rot the framing behind the stucco. We inspect for this before quoting, because the fix changes the price.
- Non-standard rough openings in 1950s tract homes. Stock windows are designed for standard framing, and forcing one into an undersized opening cracks stucco and kills the weather seal. San Leandro’s older homes need custom-sizing, period.
Pricing for Window Replacement in San Leandro, CA
No one wants a vague answer when they ask what a window costs. So here are real numbers from our San Leandro jobs. A basic insert replacement for an aluminum slider runs $450 – $900 per window. Custom-sized retrofit sashes for original wood double-hungs run $800 – $1,400. Full-frame replacement with new jambs, flashing, and sill work runs $1,200 – $1,850 per window. Glass-only and pane repairs fall in the $120 – $500 range. What moves the number is what we find when the sash comes out: rotted framing, failed flashing, or code upgrades triggered by the permit. We write allowances for those conditions into the contract before work starts. Call (252) 675-6980 and we will give you a written price with no obligation.
We Also Serve Cities Near San Leandro
Hale Windows & Doors serves San Lorenzo, Castro Valley, Oakland, and Alameda with the same written-price policy and 365-Day Done Right Promise. If you are in one of those communities and need Window Replacement in San Leandro, our crew is already working nearby. Scheduling is coordinated from the brand’s San Francisco Bay Area office, with crews serving San Leandro locally.
Serving San Leandro, CA - Our Local Coverage Area
We’re based in the San Leandro 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 About Window Replacement in San Leandro
Yes, most window replacements in San Leandro require a city permit, especially when you are changing the opening size or replacing more than the sash. The permit can trigger code upgrades for egress sizing, tempered glass near doors, and sometimes energy-efficiency requirements. We pull the permit, schedule the inspection, and make sure the job passes. Call (252) 675-6980 and we will explain exactly what applies to your home.
San Leandro’s 1940s-60s tract homes and hillside custom builds were framed before standardized rough openings were the norm. When you measure the actual opening, a stock 36-by-48 unit rarely fits without tearing into stucco or reframing the wall. We measure everything and order custom-sized retrofit units that set into the existing opening cleanly. That is the difference between a tight seal and a cracked stucco chase.
Salt-laden fog and onshore bay breezes corrode aluminum and uncoated steel hardware faster than inland heat ever will. We specify corrosion-resistant hardware, fiberglass or vinyl frames where appropriate, and low-E glass that holds up to persistent condensation. Skipping these material choices means your new windows will look just as tired as the old ones in five years. We quote the right materials the first time, in writing.
We will restore the sash and jamb before we set any new glass or pane. That means carefully cutting the paint line, freeing the sash, and letting the wood dry before we balance and re-hang it. Skipping that step and capping over the old sash traps moisture behind the new work and accelerates the rot. Our crews have done this on countless San Leandro homes, from the flats to Bay-O-Vista, and we will show you the condition of the wood before we quote the fix.
Yes. If the sash and frame are sound, we can often replace just the insulated glass unit or re-glaze a single pane for $120 – $500 instead of the $800 – $1,400 a full retrofit would cost. In San Leandro’s marine climate, the frame is usually the deciding factor. We will inspect it and give you a straight answer. Call (252) 675-6980 for a free estimate on glass repair or pane replacement.
Written by Spencer Odell, Owner at Hale Windows & Doors, serving San Leandro since 2009.










Before
After
Before
After
Before
After