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 Hillsborough
Window replacement in Hillsborough rarely looks like a catalog swap. The town’s large-lot, individually-designed homes under mature oak and redwood canopy mean most jobs involve custom opening dimensions, per-elevation glass selection, and trim matching that a standard crew never sees coming. We scope every Hillsborough project from the actual site, not a driveway photo. That’s how we catch the access problems, the jamb depth mismatches, and the permit questions before they become change orders. Our crews know the Ralston Avenue hillsides, the winding drives off Chateau Drive, and the older estates near Lakeview Drive. Schedule your free estimate by calling (817) 686-2228.

Why Meridian Windows & Doors Is Hillsborough’s Preferred Window Replacement Company
We’re the windows-and-doors specialist within the Garrison Partners family, and we’ve operated to The Garrison Standard since 2009. For Hillsborough homeowners, that means a written price before any work starts, background-checked uniformed technicians on every visit, and a live person answering the phone at 3 a.m. if you call. Not a voicemail loop. Not a callback the next business day. The Window Replacement team at Meridian runs every Hillsborough job against a fixed line, a meridian, and that is what the name means. If the work isn’t right, the 365-Day Done Right Promise covers it in writing. We come back at no charge.
Hillsborough houses are not interchangeable. A 1970s ranch on a flat Frontera Way lot has different framing, different flashing, and different glass needs than a 2000s hilltop custom with a west-facing glass wall. We carry eight manufacturer lines, PGT, CGI, CWS, ES Windows, ECO Window Systems, Mr-Glass, Therma-Tru, and ViewLux, so the right product gets spec’d for the elevation, not the one sitting in a warehouse. Elliot Vance leads the team that shows up at your door. You’ll know exactly who’s walking through it.
Energy Efficient Windows in Hillsborough
Energy Efficient Windows in Hillsborough are not one product. They’re a calculation made per elevation. The north and east faces of a Hillsborough home sit in shade for most of the day under canopy; the south and west faces take direct Peninsula sun, especially on ridge lots above Ralston Avenue. A single glass spec across all of them either bakes the west rooms or leaves the north rooms dark and cold. We spec low-E glass, a thin coating that reflects heat while letting light through, with different SHGC (solar heat gain coefficient) values per side of the house. On a typical Hillsborough replacement, the south and west elevations get a lower SHGC to cut heat gain, while the north elevation gets higher transmittance to keep daylight coming in.
Glass Selection By Elevation
Most standard window companies in the Bay Area sell one glass package per job. That doesn’t work on a Hillsborough property where the west wall takes four hours of afternoon sun and the north bedrooms never see direct light. We walk the house, note the tree cover and neighboring structures, and spec each elevation separately. The difference in cooling load between a correctly-spec’d west wall and a generic dual-pane unit is measurable on the first PG&E bill after a Hillsborough summer.
What Energy Upgrades Cost Here
A typical mid-size Energy Efficient Windows upgrade in Hillsborough runs $1,400 – $2,800 per opening installed, depending on the glass package, frame material, and whether the existing jamb can be reused. Full-frame replacement on custom openings with redwood trim matching lands at the higher end. The written quote you get covers the whole scope. Nothing moves at the door.
Window Repair in Hillsborough
Window Repair in Hillsborough usually means one of three things: a failed insulated glass unit, a rotted or sagging jamb, or leaking flashing around an existing frame. On hillside lots with wind exposure, reusing old flashing and seals on a re-glaze is a false economy. We see it regularly on homes off Chateau Drive and along the winding roads below Skyline, where a compromised seal lets moisture into the glass cavity and the unit fogs within two seasons. A proper repair here means pulling the sash, inspecting the rough opening, replacing any damaged flashing, and re-caulking every jamb and sill.
Glass Unit Replacement
When a double-pane unit fails, you don’t always need a whole new window. The sash can often be re-glazed with a new insulated glass unit, provided the frame and hardware are sound. This typically runs $400 – $900 per sash in Hillsborough, depending on glass size and coating. We’ll tell you honestly whether the sash is worth saving or whether replacement is cheaper in the long run.
Jamb and Flashing Repair
Older Hillsborough homes, especially those built before the 1990s, often have wood jambs that have been silently rotting behind the trim for years. The repair involves removing the window, cutting out the damaged wood, installing new jamb stock, re-flashing, and re-trimming to match the original casing. That’s a $700 – $1,500 job per window here, and the cost difference comes down to how much of the surrounding stucco or siding has to come off to do it right.

Trusted Brands We Service in Hillsborough
Our Hillsborough customers ask for specific products by name, and we stock parts for the lines this market actually uses. CGI and CWS both make sense here: their impact-rated and heavy-weather products hold up on wind-exposed ridge lots where a standard vinyl frame gets pushed around. ES Windows gives us the clean, narrow sightlines that Hillsborough’s custom architecture calls for. ECO Window Systems covers the energy-efficiency side with high-performance glass packages. Because we carry these brands in our portfolio rather than ordering blind, turnaround on Hillsborough service calls is faster. Parts arrive when we say they will, and the written price already accounted for them.
Common Window Replacement Problems We See in Hillsborough Homes
- Fogged glass on west-facing elevations. Years of afternoon sun and temperature swings break down the edge seals on older double-pane units. The west wall is almost always where we see the first failures, and it’s also the wall where a low-SHGC replacement makes the biggest difference in comfort.
- Rotted jambs hidden behind trim. Hillsborough’s older wood-framed windows sit under heavy tree canopy, which means the sills and jambs stay damp longer after rain. By the time a homeowner notices the paint peeling, the wood behind it is often past saving.
- Custom sizes that don’t match stock units. Much of Hillsborough was custom-built or substantially remodeled, so opening dimensions, jamb depth, and the existing flashing rarely line up with an off-the-shelf replacement. A like-for-like quote based on standard sizes goes sideways fast when the window gets pulled.
- Unpermitted work surfacing at resale. Hillsborough real estate moves on disclosure. A window replacement that skipped the permit and inspection path can come up during escrow, and the current owner pays to fix it. We pull permits and schedule the inspections on every job that requires them.
Pricing for Window Replacement in Hillsborough, CA
Single insert replacements in Hillsborough run $1,100 – $2,400 per opening. Full-frame replacements with new jamb stock and re-trimming run $1,800 – $4,200 per opening, and custom or oversized units go up from there. The honest drivers are access, opening size, and whether the existing trim can be saved. A one-story family room slider on a flat lot costs less to replace than a second-story casement on a hillside that needs a boom lift to reach. We deliver a written line-item price before a single screw turns, and that number does not move at the door. Estimate visits are free. Call (817) 686-2228 and we’ll schedule one.
We Also Serve Cities Near Hillsborough
Our crews work throughout the Peninsula, and we regularly handle Window Replacement in Hillsborough as well as projects in nearby Los Angeles, San Diego, San Jose, and San Francisco. If you’re just over the town line, the same written pricing and 365-Day Done Right Promise applies.
Key Takeaways for Hillsborough Homeowners
- Hillsborough’s custom, deep-setback homes require per-elevation glass selection, not a single generic package.
- Written prices are delivered before work begins, and the 365-Day Done Right Promise covers every install in writing.
- Permits and inspections are part of the job, not an optional add-on.
- Expect $1,100 – $4,200 per opening depending on scope. Free estimate calls are the fastest way to a real number.
Serving Hillsborough, CA - Our Local Coverage Area
We’re based in the Hillsborough 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 Hillsborough
It starts with a site visit, not a photo. We inspect the existing windows, measure the rough openings, check for rot and water intrusion, and note the access path for staging. Then we spec the glass per elevation, pull the Hillsborough permit if required, and order the windows. Crews remove the old units, repair or replace any damaged jamb stock, install the new windows with new flashing and sealant, re-trim to match the original casing, and clean up the site. Inspections happen as required. You get the warranty in writing at the end. Call (817) 686-2228 to schedule your free estimate.
Yes, particularly if your west and south elevations currently have older dual-pane or single-pane glass. A low-SHGC unit on the sunny side of a Hillsborough home cuts the solar heat load that drives afternoon indoor temperatures. The north and east elevations are less about heat and more about daylight, so we spec those differently. The savings show up on summer PG&E bills, which are high in Hillsborough’s microclimate. For an exact projection on your house, call us and we’ll walk the elevation with you.
In Hillsborough, yes, most full replacements require a permit, and the town’s building department has specific requirements for structural openings. Insert replacements into sound existing frames sometimes fall under a different path, but we confirm this during the estimate. We pull the permits, schedule the inspections, and make sure the final inspection is passed before we call the job done. Skipping the permit path creates a resale liability you don’t want. Call (817) 686-2228 and we’ll verify what applies to your project.
Most single-story Hillsborough replacements run two to four working days from tear-out to final trim and cleanup. A whole-house job on a large lot with multiple elevations, or a project that requires a boom lift for second-story access, runs one to two weeks. Custom-order glass or specialty frames add time to the order itself, usually two to six weeks depending on the manufacturer. We give you a calendar at the estimate stage and we stick to it. The Garrison Code is simple: show up as promised, or tell you in advance if the schedule shifts.
Two things: the condition of the rough opening once the old window comes out, and the access situation. Rotted jamb stock, failed flashing, or non-standard framing that wasn’t visible before tear-out can add work that no reputable contractor could have quoted accurately. Deep setbacks and mature oak canopy in Hillsborough can also force staging or access changes that weren’t obvious from the driveway. Here’s the difference with us: the original quote is written down, any discovery during the job is shown to you with photos and a written explanation, and you approve any price change before the work proceeds. The price never moves at the door. Call (817) 686-2228 for a free, written estimate.
Written by Elliot Vance, Owner at Meridian Windows & Doors, serving Hillsborough and the surrounding Peninsula.










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