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 Danville
Window replacement in Danville runs $900 – $2,400 per opening installed, depending on whether we’re swapping a failed glass unit or pulling a full frame. Most single openings land between $1,200 and $1,800 with a mid-grade vinyl frame and low-E glass. We schedule the free measurement walk within a few days, get the written price to you before any work starts, and pull permits when the scope requires them. Call (817) 686-2228 and a live person answers, day or night.
We know Danville’s streets: the ranchers off Greenbrook Drive, the two-story stucco homes west of Diablo Road, the subdivisions along Camino Tassajara. That local knowledge matters because window work here rarely fits a single template. The house you own dictates the scope.
Why Meridian Windows & Doors Is Danville’s Preferred Window Replacement Company
Danville homeowners tend to ask the same three things before they let anyone touch a window opening: what’s the real cost, how long will the job take, and will the crew show up as promised. We answer all three in writing before a single screw turns.
Elliot Vance leads our team, and every job runs to The Garrison Standard, the same operating code we’ve worked under since 2009. That means background-checked, uniformed technicians on every call. It means the price goes on paper up front and does not move at the door. It means a 365-Day Done Right Promise on every installation: if work fails within a year, we return at no charge. No fine print about labor exclusions.
Our Danville customers know exactly who’s walking through the door. That’s not a slogan. It’s how we schedule, how we staff, and how we write the contract.
Window Glass Repair in Danville
Window Glass Repair in Danville is the most common single-trade call we get from homeowners off El Capitan Drive and up toward the Alamo border. A failed insulated glass unit (IGU) shows up as fog between the panes, a visible condensation band that won’t wipe off, or a window that suddenly feels warm to the touch on a summer afternoon. The fix is a glass-only swap: remove the old sash or glazing bead, replace the failed IGU, re-seal the perimeter, and reinstall. In Danville’s dry summer heat, failed seals are routine, especially on original 1990s sliders and double-hungs that have never been reglazed.
For a standard double-hung or slider, glass-only repair in Danville runs $400 – $900 per opening. You keep the existing frame, the job typically takes under two hours per window once the glass is measured and ordered, and there’s no drywall or stucco work to chase afterward.
Fogged Units in Wood Double-Hungs
If the frame is a 1970s wood double-hung, the glass swap often exposes rotted jamb liners or failed glazing compound. We rebuild the jamb, replace the liner, and re-seat the new IGU so the sash operates cleanly. Calling it a “glass repair” still means addressing what the glass sits in.
Sliders That Suddenly Weep
Many 1990s and 2000s Danville homes have aluminum sliders on the rear elevation. When the IGU seal fails on those, the tell is water beading inside the track or a persistent draft along the interlock. We pull the panel, inspect the sill pan and drainage weep holes, replace the glass, and correct any flashing that allowed moisture in the first place.
Window Pane Replacement in Danville
Window Pane Replacement in Danville usually means a single broken or cracked pane rather than a full failed unit. Hail, a stray baseball from a backyard on Sycamore Valley Road, or a pressure crack from a settling jamb: any of these can take out one pane while the rest of the window keeps working. The job involves removing the broken glass, cleaning the sash pocket, installing a new pane (or a new IGU if the unit is double-glazed), and re-securing the glazing system. In Danville, where summer heat pushes thermal expansion harder than most people expect, even small cracks can grow fast.
Single-pane replacement on a wood or vinyl sash runs $250 – $550 per pane in Danville. If the pane is part of a failed insulated unit, you’re back to glass-only IGU replacement, which lands in the $400 – $900 range. We quote the written price after inspecting the sash in person.
Impact Glass Upgrades During a Pane Replacement
A broken pane is sometimes the right moment to upgrade to impact-rated low-E glass, especially on east- and south-facing elevations near Mount Diablo’s afternoon exposure. The upcharge depends on the unit but typically ranges $150 – $400 per sash over standard clear glass. If you’re already paying for a pane swap, that upgrade beats doing it twice.
When the Sash Is Shot, Not Just the Pane
If the pane broke because the sash is sagging or the corner welds failed, replacing only the glass buys you a year, not a decade. We’ll tell you that on the walk. The written quote covers the full sash replacement if that’s what the opening needs, and the price difference is laid out line by line before you decide.
Trusted Brands We Service in Danville
We stock and install replacement parts and full window units from eight manufacturer lines, including CGI, CWS, and ES Windows. For Danville’s mix of older wood double-hungs and newer aluminum sliders, having CGI’s impact-rated insulated glass and ES Windows’ retrofit frames available locally means faster ordering and fewer second trips. We measure every opening against the actual rough opening, not the existing window dimensions, then spec the right product from the right line. The wrong window doesn’t get ordered because the wrong window was the one sitting in the warehouse. Our Window Replacement team handles the full scope from glass-only repair to complete frame teardown.
Common Window Replacement Problems We See in Danville Homes
- Out-of-square jambs on 1960s and 1970s ranchers. Danville’s older homes have settled over five decades. We regularly measure rough openings that are off by 3/8 inch or more from top to bottom. If you order units to the existing window size without pulling casing first, the new window doesn’t fit without shimming and a change order.
- Mixed window stock on the same house. A front elevation with original wood double-hungs and a rear with aluminum sliders is not rare in Danville, it’s the standard on homes built between about 1965 and 1995. Each side needs a different flashing, sill pan, and trim detail. A single generic scope misses one of them.
- Failed IGUs on northern exposures that never get direct sun. Fogged glass doesn’t need direct sun to fail in Danville’s swing season. The north side of Greenbrook Drive homes takes longer to dry after winter storms, and the constant moisture cycling separates the IGU seals faster than most people expect.
- Shallow rough openings on 1990s aluminum slider retrofits. Newer vinyl and impact units are usually deeper than the original aluminum frames they replace. On some Danville Hills and Sycamore-area homes, the opening needs a sill-pan modification and new drainage path before the new unit seats correctly. We catch that during the measurement walk, not after the drywall is cut.
Pricing for Window Replacement in Danville, CA
We Also Serve Cities Near Danville
Our crews handle window replacement across the San Ramon Valley and surrounding Contra Costa communities. We regularly work in San Ramon, Clayton, Alamo, and Dublin. If you’re close to Danville, we’re close to you.
Serving Danville, CA - Our Local Coverage Area
We’re based in the Danville 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 Danville
Yes, you need a permit if the window replacement changes the opening size, the header, or the egress dimensions. Like-for-like swaps of the same size and type typically fall under a repair scope and don’t need a permit. If we’re doing a full-frame replacement on a Danville home and the rough opening changes at all, we pull the permit and schedule the inspection. Call (817) 686-2228 and we’ll tell you which path your project falls under before any work starts.
Yes, and this is one of the most common scopes we handle in Danville. The front wood double-hungs get one flashing and jamb treatment; the rear aluminum sliders get a different sill pan and drainage detail. One crew handles both in a single project, one written price covers the whole house, and the calendar accounts for the different tearout time on each elevation.
Three things, mostly: out-of-square rough openings that need shimming and rebuild work, rotten jamb liners or king studs discovered after the old window is out, and flashing conditions that were hidden behind stucco or trim. None of these should be a surprise. We measure rough openings, pull casing when we need to, and write the quote to cover what we can see. If we open the wall and find framing damage, we stop, show you what we found, and get written approval before any price changes. Call (817) 686-2228 for an exact quote once we’ve seen your openings.

For a single full-frame replacement, expect one day for measurement and written quote, two to four weeks for ordering and permit processing if required, then one to two days of on-site work per window opening. A full-house replacement on a 1970s rancher can run three to five working days once materials arrive. Inspection scheduling adds a few days if the scope triggered one. We’ll give you the calendar in writing with the quote.
Yes. Low-E glass is a thin coating that reflects heat while letting light through, impact-rated units add a laminated interlayer for structural strength. In Danville, where summer afternoons push 90°F and hotter for stretches off Blackhawk Road and up Camino Tassajara, the reflective coating on south- and west-facing windows cuts the heat load noticeably. One Greenbrook homeowner saw her front bedroom hold temperature better and her cooling bill drop after we replaced failed IGUs with low-E impact units. The exact savings depend on your orientation, roof insulation, and how many windows we upgrade. Call (817) 686-2228 and we’ll price the upgrade on your specific elevations.
Written by Elliot Vance, Owner at Meridian Windows & Doors, serving Danville and the San Ramon Valley.
Ready to get your Danville window replacement priced in writing? Call (817) 686-2228 to schedule your free measurement walk and written estimate. A live person answers, every day, around the clock.










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