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AfterFast, Reliable Window Replacement Across Hillsborough
Window replacement in Hillsborough runs on a different clock than it does in Burlingame or San Mateo. Most older estate homes here need Design Review Commission sign-off before a permit is issued, so the calendar is set by architectural drawings and board meetings, not by how fast a crew can pull sashes. That is the reality we work with every week. If you’re calling from Hillsborough, call (888) 635-0804 and you’ll get a live person who knows exactly what your street requires, not a call center reading from a script.
TruePane Windows & Doors has replaced and restored windows on Spanish Colonial Revival, Mediterranean, and Tudor Revival homes throughout Hillsborough for years. We know the Ralston Avenue corridor, the estates off of Summit Drive, and the hillside lots above Crystal Springs Road. We know which eras of steel casement hardware corrode first in marine fog, and we know what the Design Review Commission will ask for before you ever submit drawings. Dale Kessler started this company on a simple rule: if the pane is not true, the job is not done. That applies to a $900 insert window and a $45,000 full-frame custom restoration the same way.
Fast Answers for Hillsborough Homeowners
- How much does window replacement cost in Hillsborough? A typical insert window replacement runs $900-$1,800 per opening. Full-frame custom work on period homes runs $2,400-$5,500 per opening, and full historic restorations with architectural coordination run $45,000-$120,000 for a whole home. Written line-item quotes, fixed pricing, no change orders.
- How long do Hillsborough window replacements take? Plan on 4-10 weeks longer than a Burlingame job because of Design Review Commission submittal and board sign-off. We order sashes only after drawings are approved and the price is fixed in writing.
- Can you match original 1920s-1960s windows? Yes. TruePane is an authorized installer for more than a dozen manufacturer lines including, and custom millwork fabricators. We match muntin profiles, hardware finish, sightlines, and glass character.
- Do you pull the permits? Yes, on every Hillsborough job that requires them. We coordinate stamped architectural drawings, board submittals, and inspections. The price you sign is the price you pay.
Why TruePane Windows & Doors Is Hillsborough’s Preferred Window Replacement Company
Hillsborough homeowners don’t call around for the cheapest bid. They call around for the company that will still answer the phone in fifteen years. That’s why we’ve built our reputation here on restoration work, not on volume production installs. We hire local, train apprentices into journeymen, and sponsor county fairs and church roof funds because we plan to be in this town in thirty years.
Our technicians are background-checked and uniformed. They measure every opening twice, quote manufacturer lines side by side on paper, and register both warranty layers before the truck leaves the driveway. That’s The Keystone Standard, and it’s in writing. Every job carries the Done Right Promise: if it is not done right, we make it right, no paperwork and no arguing.
What Hillsborough homeowners tell us they appreciate most is the up-front candor. We’ll tell you if a window can be restored rather than replaced. We’ll tell you if the Design Review Commission will require stamped drawings. We’ll tell you what the lead time really is, not the one that sounds good over the phone. A square deal, in writing, from the first visit.
Our Window Replacement Services in Hillsborough
Historic Window Restoration
Most Hillsborough estate homes built between the 1920s and 1960s have original true divided-light wood windows or multi-pane steel casements. Off-the-shelf replacements destroy the architectural character and will get flagged by the Design Review Commission. We restore what can be restored: stripping and repairing sashes, rebuilding sills, reglazing original glass, and refinishing hardware. When restoration isn’t possible, we fabricate period-correct custom units matched to muntin profiles and hardware finishes. On a 1930s Tudor Revival off Ralston Avenue, our crew replaced original wood casements with custom Marvin units that matched the muntins and hardware exactly, with low-E argon-filled glass specified by the homeowner’s architect to cut fog-driven condensation without altering the facade. That job ran $68,000 for 14 openings, fixed in writing before the first sash was fabricated.
Full Frame Replacement
Full-frame replacement means removing the entire window, including the jamb and sill, and setting a new unit with new flashing and insulation. In Hillsborough, hidden rot in hand-crafted wood frames means full-frame work is common on hillside homes where marine fog channels up from the Bay. We see sills that look fine from the interior but crumble to dust when the window is pulled. Full-frame replacement on a Hillsborough estate home runs $2,400-$5,500 per opening depending on size, custom millwork, and finish. The written quote covers every custom detail before we order anything.
Insert Window Replacement
Insert replacement is a new sash fitted inside the existing frame. It costs less and preserves original trim, which matters on Hillsborough homes with hand-crafted interior millwork. Inserts run $900-$1,800 per opening for standard sizes, but most Hillsborough homes aren’t standard. We measure every opening twice and fabricate custom inserts when needed. If your frames are sound and your sash is what’s failing, this is often the right call. We’ll tell you honestly if the frame itself has rot and an insert would be a waste of your money.
Energy-Efficient Upgrade
Hillsborough estates are large, often 5,000 to 12,000 square feet, with dozens of windows. Original single-pane steel and wood windows leak conditioned air and fog over constantly in marine air. Upgrading to low-E, argon-filled, or triple-pane glass cuts heating and cooling costs and stops condensation that feeds rot. The challenge here is doing it without changing the look of a Spanish Colonial or Mediterranean facade. We use low-E coatings with minimal tint shift, matched sightlines, and historically appropriate glass character. The energy savings are real; the architectural character stays intact. A whole-home energy upgrade on a Hillsborough estate typically runs $55,000-$120,000.
Storm Window Replacement
Some Hillsborough homeowners prefer to keep original windows and add high-performance storm windows behind them. On a hillside property exposed to winter storms off the Pacific, this preserves character while improving thermal performance and protecting original sashes. Storm windows run $400-$900 per opening installed, and we can match them to the existing sightlines. This is also a lower-cost path through the Design Review Commission when original windows are in good structural condition.
What happens when you call
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A real person answersNo phone trees - you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Hillsborough
We’re an authorized installer for more than a dozen manufacturer lines, including, PGT, CGI, and ES Windows. That matters in Hillsborough because no single manufacturer covers every architectural era represented on these streets. A 1920s Spanish Colonial needs something different than a 1960s Mid-Century modern. We quote manufacturer lines side by side on paper so you see exactly what you’re buying and what it costs. We also stock common parts and hardware for Hillsborough customers, which shortens turnaround on repairs and restoration work. No second appointment left hanging.
Common Window Replacement Problems We See in Hillsborough Homes
- Corroded steel casement hardware from marine fog. Original steel windows from the 1920s-1940s seize up faster in Hillsborough than in fog-shielded towns like Atherton. The hinges and locking mechanisms corrode, and the sash won’t open without forcing it. We replace hardware with period-correct components or fabricate custom matches.
- Hidden rot in hand-crafted wood sills and jambs. Moisture-laden air channels up the Peninsula hillsides and into Hillsborough, accelerating rot in original wood frames. The damage often hides behind stucco and trim until the window is actually removed. Full-frame replacement with new flashing is the fix, not caulk and paint.
- Design Review Commission delays derailing projects. Out-of-town contractors quote Hillsborough jobs without accounting for the Commission. The old windows come out, and then the project stalls for weeks waiting on stamped drawings and board sign-off. We handle the submittal before the sashes are ordered.
- Fogged glass units on 1960s-1980s homes. Hillsborough has a number of Mid-Century homes built later than the estate boom, and their original insulated glass units have failed by now. Seal failure shows up as permanent fog between the panes. These units can often be replaced as inserts without touching the original frame, typically $1,200-$2,200 per opening.
Pricing for Window Replacement in Hillsborough, CA
Hillsborough pricing starts where most Peninsula cities top out, and the reason is architectural review and custom millwork, not labor rates. Here is what you should expect:
- Insert window replacement: $900-$1,800 per opening
- Full-frame replacement (standard size): $2,400-$4,200 per opening
- Full-frame replacement (custom, period-matched): $3,500-$5,500 per opening
- Storm window replacement: $400-$900 per opening
- Historic restoration (whole home, 12-20 windows): $45,000-$120,000
- Energy-efficient whole-home upgrade: $55,000-$120,000
What moves the price in Hillsborough: whether your home falls under Design Review Commission purview (most pre-1970 estate homes do), how much original millwork needs reconstruction, whether the window is on a hillside requiring staging or special access, and what finish level the Commission requires. The price is fixed in writing before we order anything. No change orders, no surprise line items. Call (888) 635-0804 for a free estimate and a line-item quote in writing.
We Also Serve Cities Near Hillsborough
TruePane’s Window Replacement team serves the entire San Francisco Peninsula. We work in Parkway, Arden-Arcade, Ladera Heights, and Commerce as well, and our crews are on Hillsborough jobs weekly. If you’re in a neighboring city, Window Replacement in Hillsborough is our specialty, and we bring the same standard to every job on the Peninsula. Same phone, same live person, same written quote.
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 - Window Replacement in Hillsborough
Plan on 4-10 extra weeks because the Design Review Commission requires stamped architectural drawings and board sign-off before a building permit is issued on older estate homes. That’s a Peninsula-specific delay that Burlingame and San Mateo simply don’t impose on most homes. We fold that lead time into your written schedule from day one, and we order sashes only after the drawings are approved. Call (888) 635-0804 and we’ll give you a realistic timeline for your specific street.
No, and honestly, you shouldn’t try. Hillsborough’s Design Review Commission requires replacement windows on older estate homes to maintain the original architectural character, and a standard off-the-shelf sash fails that review. You need period-correct custom work: matched muntin profiles, historically appropriate glass character, correct hardware finish. We fabricate those windows and handle the Commission submittal. Off-the-shelf saves money and costs you a stalled project.
Because Hillsborough sits in a marine fog channel. Moisture-laden air rolls off the Bay and up the Peninsula hillsides to Hillsborough, and it lingers. Redwood City sits inland of the fog line, so its air is drier and warmer. In Hillsborough, that fog feeds rot in original wood sills and jambs and corrodes steel casement hardware faster. The fix is full-frame replacement with new flashing and proper flashing tape, not surface repairs. Call (888) 635-0804 and we’ll assess what’s actually happening at your house.
The project pauses while revisions are made, which can add weeks. But this is a normal part of Hillsborough work, not a catastrophe. We’ve been through the process on Ralston Avenue, Summit Drive, and the hillside estates above Crystal Springs Road. We know what the Commission flags: window sightlines, muntin profiles, glass character, hardware finish, and stucco detailing. We prepare drawings to pass on the first submittal, and if revisions are requested, we make them and resubmit. The price stays fixed. That’s in writing.
Yes. Low-E glass with argon fill or triple-pane construction can be built into true divided-light custom windows that match your original muntin profiles and hardware finish. On a 1930s Tudor Revival off Ralston Avenue, our crew replaced original wood casements with custom Marvin units using low-E argon-filled glass that cut condensation and improved thermal performance without altering the facade. The architect reviewed the sightlines and glass character, and the Commission approved the submittal. Energy efficiency doesn’t require contemporary-looking windows in Hillsborough. It requires a manufacturer who will fabricate to match, and an installer who understands the difference.
Call TruePane for Window Replacement in Hillsborough
If you own a Hillsborough estate home with original steel casements or hand-crafted wood windows, you don’t need a website quiz or a callback form. You need a company that will tell you the truth about lead times, required drawings, and what your windows actually need. That’s TruePane Windows & Doors. Call (888) 635-0804 for a free estimate. A live person answers, 24 hours a day, 7 days a week. We’ll schedule a site visit, measure every opening twice, and give you a fixed written quote with both warranty layers registered before the truck leaves the driveway. Done right, in writing, with no surprises on the bill.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Hillsborough and the San Francisco Peninsula.