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KraftMaid Windows & Doors: The Sunnyvale Owner’s Guide
We stock and install KraftMaid-compatible windows and doors across Sunnyvale, with most replacement units available same-day from our local supplier network. Typical installed pricing runs $4,500-$15,000 for full window replacement and $8,000-$25,000 for impact-rated installations, depending on unit count and series. Most Sunnyvale homeowners discover a KraftMaid window or door is failing when they feel a draft near the sill during our winter marine layer months, or when the casement crank strips out and the sash won’t seal tight against the frame anymore.
Which KraftMaid Models This Applies To
KraftMaid’s window and door program has shifted over the years, so the first step is confirming what you actually have. Early KraftMaid units were sourced through third-party OEM partnerships, typically labeled with a small metal tag on the hinge side of the frame showing a four-digit model prefix and manufacture date. Newer KraftMaid lines, particularly those sold through their designer dealer network after 2018, carry a different labeling system with a QR code linking to the original spec sheet.
We match parts by measuring the rough opening, the sash thickness, and the hardware bore spacing - three numbers that tell us whether your unit came from the Heritage, Classic, or Reserve series. OEM hardware is still available for most series, though we often recommend quality aftermarket equivalents from Truth Hardware or Hoppe for locksets and rollers, since KraftMaid’s own parts channel can run 10-14 days for non-stock items. The aftermarket route saves our Sunnyvale clients a week and typically matches the original spec within a thirty-second tolerance. Rowan Construction Group Sunnyvale is an independent service provider, not affiliated with KraftMaid.
Signs Your KraftMaid Windows & Doors Is Failing

- Draft at the sill or jamb. Compression weatherstripping hardens after 8-12 years in Sunnyvale’s UV exposure, losing its seal. The fix is replacing the pile or bulb seal, not the whole unit, if the frame is square.
- Casement crank spins without moving the sash. The worm gear inside the operator mechanism strips out, usually from over-torquing or dried lubricant. We stock replacement operators for most KraftMaid crank configurations.
- Double-hung sash won’t stay open or slams shut. The balance system, either coil or block-and-tackle, has lost tension. This is a high-tension component - we don’t recommend homeowners disassemble these themselves.
- Condensation between glass panes. The insulated glass unit (IGU) seal has failed, meaning the desiccant inside the spacer bar is saturated. The glass pack needs replacement; the frame stays.
- Door sticks or rubs at the threshold. Settlement in Sunnyvale’s clay-heavy soils shifts the frame, or the adjustable sill cap has worn down. We check plumb first, then replace hardware or shim as needed.
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AfterReplacement Cost & What’s Included
For Sunnyvale homes, window replacement runs $4,500-$15,000 depending on unit count, series, and whether we’re matching existing interior trim. Impact window installation, required in some newer Sunnyvale builds near the Caltrain corridor for sound attenuation, ranges $8,000-$25,000. Door replacement typically falls in the lower half of that window range unless we’re cutting in a new opening.
Our written quote breaks out material, labor, and any subcontractor scope separately - under Clause 1 of the Haven Standard, the price is fixed before anyone picks up a tool. Permits, if required for structural modifications, are listed as a line item. Every KraftMaid-compatible installation carries our 365-Day Done Right Promise, and you receive a documented photo record of the opening condition, the install, and the finished seal test.
DIY or Call Us?

There’s a safe middle ground here. Homeowners can check the label location, photograph the hardware, and confirm whether the frame is square with a four-foot level - that information saves us twenty minutes on site and gets your parts ordered faster.
Where DIY goes wrong is the balance system in double-hung units and any removal of the sash from a tilt mechanism. These components are under spring tension that can release unpredictably. We’ve also seen homeowners damage the weep screed, the drainage channel at the sill, by forcing a sash back in at the wrong angle. If you’re unsure, call (650) 405-3637 and we’ll talk through what you’re seeing. Measure it twice, write it down, then build it.
FAQs
Most KraftMaid-compatible units last 15-25 years in Sunnyvale, with the lower end coming from south-facing elevations where UV degradation accelerates weatherstripping and frame finish. Marine layer moisture isn’t the problem - it’s the thermal cycling between 45°F winter mornings and 85°F summer afternoons that fatigues seals. Call (650) 405-3637 for an exact quote - estimates are free.
Often yes. IGU replacement, hardware swaps, and weatherstripping renewal are all viable repairs if the frame is square and the sill pan is intact. We replace the full unit only when the frame has rotted, the warranty requires it, or the energy performance spec no longer meets Title 24. Call (650) 405-3637 for an exact quote - estimates are free.
A single window swap takes 2-3 hours per opening, with full-house jobs running 2-4 days depending on trim complexity and whether we’re matching existing casing profiles. We don’t promise same-day completion on planned construction work - the job is done when the seal test passes and the photo record is complete. Call (650) 405-3637 for an exact quote - estimates are free.
We carry common operators, locksets, and weatherstripping profiles for KraftMaid-compatible units, plus a selection of standard sash sizes. Custom IGUs and specialty hardware ship from our San Jose supplier within 24-48 hours. For parts-only requests, we can source and deliver without installation - the price is still written before anything moves. Call (650) 405-3637 for an exact quote - estimates are free.
Ready to get your KraftMaid windows or doors working right? Call (650) 405-3637 to schedule your free estimate. We’ll bring the tape measure, the parts catalog, and a written price before any work starts.
Written by Grant Rowan, Owner, Rowan Construction Group Sunnyvale at Rowan Construction Group Sunnyvale, serving Sunnyvale and nearby areas.







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