Free in-home measure and quote - PGT, CGI and CWS impact lines compared on your actual openings, style by style
Fast, Reliable Impact Windows & Doors Across Piedmont
Impact windows and doors in Piedmont run $1,400-$4,200 per opening installed, with most full-home projects landing between $28,000 and $85,000 depending on the home’s architecture and the level of Design Review compliance required. That’s the honest range for this city, where 1910s-1940s homes with irregular rough openings and true-divided-light requirements don’t accept stock units the way newer Oakland construction does. If you’re calling from Piedmont, we have a live person answering at (888) 635-0804, and Dale Kessler’s crews know this city’s review process well enough to spec your windows right the first time. You’re not getting a franchise estimate pad here. You’re getting a second-generation glazier who has seen Piedmont’s Design Review Board reject simulated divided lights enough times to never bid them on a period home again.
Why TruePane Windows & Doors Is Piedmont’s Preferred Impact Windows & Doors Company
Piedmont homeowners don’t call us because we’re the fast option. They call because a neighbor on Crocker Avenue or a friend near Piedmont Park got burned once by a bid that looked fine on paper and failed at Design Review. Our reputation in Piedmont is built on getting impact windows approved on the first submittal, the way a tradesperson should. We’re not new to this city’s expectations. Dale Kessler started TruePane in 2008 after years of watching out-of-true installs and voided warranties, and the company has carried that standard into every Piedmont job since. Clients here tend to have lived in their homes twenty or thirty years. They remember the contractor who left a fogged seal. They read the fine print now. That’s the customer we write for.
Every Piedmont job is backed by the Done Right Promise and The Keystone Standard. Both manufacturer warranty layers get registered in writing, with durations stated, before the truck leaves the driveway. If something is not done right, we make it right. No paperwork fights, no arguing. A live person answers the phone 24 hours a day, 7 days a week, and when you call about a Piedmont project, you talk to someone who knows the difference between a Craftsman true divided light and an SDL that won’t pass review. Our technicians are background-checked and uniformed. They measure every opening twice. They quote manufacturer lines side by side on paper. That’s the job.
Our Impact Windows & Doors Services in Piedmont
This page covers the services Piedmont homeowners actually need, not a generic list. Here’s what we do in this city and what it looks like on the ground.
Hurricane Impact Windows
Impact windows in Piedmont are a different animal than in a coastal condo. You’re not just meeting wind-code requirements. You’re preserving the sight lines of a 1920s Tudor Revival on Homewood Road or a Spanish Eclectic near Dracena Park. We spec true divided lights or authentic wood interiors from the first bid because Piedmont Design Review has rejected simulated divided lights before, and we don’t re-bid after a denial. Laminated impact glass paired with historically accurate frames is standard practice here, not an upsell.

Impact Entry & French Doors
Piedmont entryways carry real architectural weight. A wide picture-frame casing from 1930 isn’t something a stock door unit just slides into. We field-measure each opening, match the divided-light pattern to the original, and order impact-rated doors that keep the profile intact. French doors facing north or west get extra attention on flashing and drainage because Piedmont’s fog settles in those exposures and rot starts fast when the rough opening isn’t prepped right.

Impact Sliding Glass Doors
Mid-century and later Piedmont homes with sliding doors need impact glass that doesn’t look like it belongs in a hurricane zone apartment. We quote PGT and CGI lines side by side on paper so you see the frame profile, the glass thickness, and the hardware before you commit. One piece of advice from the field: don’t order sliding doors before the existing opening is measured. Piedmont’s older construction means jambs have shifted over decades, and a stock-sized door leaves gaps that air and moisture find quickly.

Impact Garage Doors
Impact-rated garage doors are technically a separate category, and on Piedmont hillside lots where the garage faces the street, they’re a visible part of the home’s front elevation. We don’t have a separate garage door division. We coordinate the door with the rest of your window and door package so the finish, material, and panel pattern read as one project, not three different vendors fighting each other.

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 Piedmont
We’re an authorized installer for more than a dozen manufacturer lines, so Piedmont homeowners can compare, PGT, CGI, and ES Windows side by side, on paper, with the warranty terms written out. That matters here because Design Review cares about material and profile, not brand loyalty. Some homes call for Marvin’s true divided light impact casements. Others get PGT’s laminated glass with a wood interior. We don’t push one line. We show you what passes review, which warranty layers apply, and what the lead time actually is before you order. Parts and warranty service for Piedmont customers are handled by our Bay Area office without routing through a call center.
Common Impact Windows & Doors Problems We See in Piedmont Homes
After years in this trade, these are the failure patterns that keep showing up in Piedmont homes specifically:
- Simulated divided lights denied at Design Review. A homeowner or contractor specs SDL impact windows to save a few hundred per opening, the board rejects them because the applied grilles don’t match true divided light sight lines, and the job gets delayed six to eight weeks for a reorder. We spec true divided lights or authentic wood interiors from the first bid.
- Fogged seals in original steel casements. Piedmont’s 1920s and 1930s homes still carry original steel windows with failing glazing putty and condensation between panes. That’s an insulated glass unit seal failure, and it’s not a repair-and-replace-one-pane situation. The whole sash needs refitting, and keeping the original profile means custom work, not stock units.
- Builder-grade flashing on north and west sills. Piedmont’s marine fog settles on north- and west-facing walls and accelerates rot on wood sills. If the new impact window goes in with cheap flashing tape and no back-priming, the jamb starts failing within a few seasons. This is preventable, and it’s one of the first things Dale checks on a walkthrough.
- Stock-sized windows in irregular rough openings. Decades of minor Hayward Fault movement have left many Piedmont rough openings out of square. Ordering impact windows without field-measuring each opening leaves gaps that leak air and moisture no matter how good the glass is. Custom sizing is the standard here, not the exception.
Pricing for Impact Windows & Doors in Piedmont, CA
Here are real numbers for Piedmont’s market. A single impact window with true divided lights on a period Craftsman runs $1,400-$2,800 installed. Impact French doors with laminated glass and historically matched divided lights land at $4,500-$9,000. Full-home impact window replacement on a 1920s four-bedroom typically falls between $42,000 and $85,000, and the biggest variable is Design Review compliance: true divided lights, authentic wood interiors, and custom sizing all add to the per-opening cost. What doesn’t add cost is our estimating process. We measure, we quote, we fix the price in writing before ordering, and we don’t come back with change orders because we guessed wrong on a rough opening. Call (888) 635-0804 for a free estimate, and we’ll walk your home with an eye for what Design Review will actually accept.
We Also Serve Cities Near Piedmont
Our crews serve Piedmont and also work regularly in Emeryville, Oakland, Alameda, and Berkeley. If you’re in one of those cities and dealing with impact windows or doors, the same team and the same Done Right Promise apply. Call us and you’ll talk to a person, not a form.
Serving Piedmont, CA - Our Local Coverage Area
We’re based in the Piedmont 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 - Impact Windows & Doors in Piedmont
Yes, and the key word is preserved, not simulated. Piedmont Design Review accepts impact windows with laminated glass when the divided-light pattern matches the original in profile, sight line, and shadow depth. Applied grilles (SDLs) have been rejected on period homes because they don’t replicate those details. Specify true divided lights or authentic wood interiors from the first bid, and include the manufacturer’s profile drawings with your submittal. Call (888) 635-0804 and we’ll help you prepare the application correctly the first time.
Yes, when the new units are custom-sized to the original rough openings and the frame profile, finish color, and jamb depth match the Design Review requirements. On a 1923 Tudor Revival in Wildwood Gardens, our crew pulled original steel casements with failing glazing putty and condensation fog between panes, then field-measured each opening because decades of Hayward Fault movement had left them out of square. We ordered Marvin impact-rated casements with true divided lights and coordinated the finish and jamb depth with the owner’s architect before the submittal. That’s the process Piedmont demands. Call (888) 635-0804 for a walkthrough of your home’s specific condition.
Because true divided light impact windows and historically matched frames are built to order, not pulled from a warehouse shelf. Manufacturer lead times for Marvin, PGT, and CGI custom units run 10-12 weeks, sometimes longer when Design Review submittals require revised profile drawings. The installation itself is typically 1-2 days per floor once the windows arrive. We fix pricing in writing before ordering so the lead time doesn’t become an excuse for a change order on the back end. If you’re planning a Piedmont project, start the submittal early. Call (888) 635-0804 and we’ll map the schedule backward from your target date.
A north-facing wall in Piedmont sits in shade and fog for much of the year, so you want a lower U-factor for insulation, around 0.30 or below, and a higher SHGC, around 0.40 or above, to let in what warmth the climate offers. West-facing walls get afternoon sun and need a lower SHGC to cut glare and heat gain. The real answer depends on the specific house, tree cover, and which room sits behind the window. We quote glass packages per elevation, not per house, because a south-facing Craftsman window has different numbers than a north-facing one. Call (888) 635-0804 for a per-opening recommendation.
If the original sashes are sound, the weight-and-pulley system still works, and the wood hasn’t rotted at the sills, retrofitting with impact glazing can preserve the original frames and meet Design Review expectations more easily than full replacement. If the sashes are warped, the sills are soft, or the jamb has pulled away from the plaster, retrofitting is a temporary fix on a failing structure. Piedmont’s fog makes sill rot common on north and west walls, so a close look at the sills usually answers the question. Call (888) 635-0804 and we’ll give you a straight read on what’s worth saving and what isn’t.
How to Get Impact Windows Approved on the First Submittal in Piedmont
Most Piedmont homeowners don’t find out about the Design Review Board’s simulated divided light rejection until after their first bid gets denied. Here’s how to avoid that. First, specify true divided lights or authentic wood interiors from the start, not SDLs. Piedmont’s board has rejected applied grilles because they don’t replicate the sight lines and shadow depth of real divided lights, and that rejection means a reorder and weeks of delay. Second, field-measure every rough opening before ordering. Piedmont’s 1910s-1940s construction means openings are often out of square from decades of Hayward Fault movement, and stock-sized units leave gaps no impact rating can fix. Third, prepare the submittal package with manufacturer profile drawings, finish colors, and jamb depths coordinated with your architect before the board meets. We do this coordination for every Piedmont job because it’s cheaper to spend two extra hours on the submittal than six weeks waiting for a reorder. That’s the discipline this city requires, and it’s the reason our Impact Windows & Doors team specs differently here than we do in Oakland. The review process is the project. The installation is the easy part.
The same goes for local building. Piedmont’s marine fog pushes through the Diablo Range gaps and settles over the East Bay hills, so north- and west-facing wood sills need proper back-priming, flashing, and drainage planes around every rough opening. Skip that on an older wood-framed structure and the new jamb rots within a few seasons. Our crews treat every Piedmont rough opening as a water-management problem first and a glass installation second. That’s what keeps the warranty valid and the sills solid. Call (888) 635-0804 for a free estimate, and we’ll walk your home with a straight answer on what passes review, what costs what, and how long it actually takes.
Written by Dale Kessler, Owner at TruePane Windows & Doors, serving Piedmont with a second-generation glazier’s standard and a 42-year community commitment.



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