Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Boral Windows & Doors: The Santa Clara Owner’s Guide
We stock and install Boral-compatible windows and doors across Santa Clara, with typical replacement projects running $4,500-$15,000 for full window replacement and $8,000-$25,000 for impact-rated installations. Most Boral hardware and seal components are on our trucks or available next-day through our supplier network. You’ll usually discover a problem when the window sticks in the track during our dry summer heat, or when you notice the draft you used to ignore has started showing up on your PG&E bill.
Which Boral Models This Applies To
Boral’s window and door lines changed hands and naming conventions more than once, so identification matters. We most commonly service the Boral Vantage series (aluminum-clad wood windows from the mid-2000s through Boral’s exit from the U.S. window market around 2017), the Boral Brick and window combination systems found in South Bay infill projects, and the commercial-grade Boral storefront systems still visible along the El Camino Real corridor in older Santa Clara retail builds.
To identify your part, check the edge of the sash for a stamped series number, or the hinge-side jamb for a paper label with a six-digit code starting in 2 or 3. The Vantage 300 and 500 series use different balances and weatherstrip profiles, and they’re not interchangeable. For hardware, the truth is that Boral OEM parts are largely depleted stock now; we source from AmesburyTruth and Truth Hardware for compatible operators, and from Schlegel and Ultrafab for pile weatherstrip that matches the original compression specs. The aftermarket equivalent often outperforms the original because the polymer formulations have improved since your windows were built. We note the source on every quote, under Clause 1 of the Haven Standard, so you know what you’re getting before we start.
Signs Your Boral Windows & Doors Is Failing

- The sash drops or won’t stay open. This points to a failed coil balance or broken block-and-tackle assembly. In Santa Clara’s inland valley heat, the lubricant in older Boral balances dries and gums over 8-12 years, then the spring fatigues. The window becomes a finger hazard and eventually a security issue.
- Visible gaps at the meeting rail or frame perimeter. The pile weatherstrip compresses permanently after roughly 10-15 years of seasonal expansion cycles. Once the fuzz barrier is flattened, you’re losing conditioned air and gaining dust from the Central Valley.
- Condensation between panes on dual-glazed units. The edge seal has failed, and the desiccant inside the spacer is saturated. This is not repairable; the insulated glass unit needs replacement. Santa Clara’s temperature swings, 40°F winter lows to 95°F summer highs, accelerate seal fatigue compared to coastal climates.
- Operator handle spins without moving the sash. The worm gear inside the Boral operator has stripped, usually from forcing a warped sash. The operator housing often cracks when this happens, so the whole assembly needs replacement rather than just the gear.
- Frame corners weep water during rare heavy rains. The sill pan or weep holes are clogged, or the end dam seals have detached. Boral’s aluminum-clad frames rely on drainage paths that Santa Clara’s dust and occasional ash from wildfire season can block.
Before
AfterReplacement Cost & What’s Included
Window replacement in Santa Clara runs $4,500-$15,000 depending on count, access difficulty, and whether we’re matching existing trim or replacing it. Impact window installation, required in some newer Santa Clara code zones near the Bay’s wind corridors, ranges $8,000-$25,000. Hardware-only repairs, balance replacements, or weatherstrip swaps typically fall between $400-$1,800 per opening.
What drives the range: second-story access requiring scaffolding, stucco or siding repair after the opening is disturbed, and whether the original Boral frame is square enough to accept a standard replacement or needs reframing. Our quote is a flat written price with a written scope, delivered before any work starts. The 365-Day Done Right Promise covers the installation; manufacturer warranties on glass and hardware run 10-20 years depending on the replacement line we specify. Every visit includes a documented photo record, standard, not optional.
DIY or Call Us?

There’s a safe middle ground here. You can check the label location, clear weep holes with a pipe cleaner, and verify that the sash lock is fully engaged before you call. What we don’t recommend: removing a Boral sash with failed balances, which can drop hard and crack the glass; or attempting to tension a coil balance without the proper winding tool, which stores enough force to damage the window or your hand. The aluminum cladding on Boral frames also conceals integrated weatherstrip channels that tear easily if pried wrong.
We’ve measured enough out-of-square openings in Santa Clara’s 1960s ranch stock to know that “standard size” is often a fiction. Measure twice, document once, and never assume the last contractor left things square. Call (669) 259-1843 and we’ll schedule a free estimate with the actual dimensions and the actual price in writing.
FAQs
The frame and sash structure often exceeds 30 years, but the moving parts, balances, and seals need attention at 10-15 years in our climate. The thermal cycling here is harder on edge seals than steady coastal weather. Call (669) 259-1843 for an exact quote on your specific condition, estimates are free.
Hardware, balances, weatherstrip, and individual glass units can be repaired or replaced while keeping the original frame. If the frame itself is rotted, corroded, or out of square beyond adjustment, replacement becomes the honest recommendation. Call (669) 259-1843 for an exact quote, estimates are free.
A single opening with no surprises is half a day; a full-home replacement of 10-15 openings runs 3-5 days including trim and cleanup. We don’t quote speed, we quote completion with the scope we agreed to. Call (669) 259-1843 to schedule your free estimate.
We carry common balances, operators, and weatherstrip profiles that fit Boral Vantage and similar-era products. Specialized glass units or discontinued hardware ship next-day from our supplier network. Call (669) 259-1843 and we’ll confirm availability for your specific part before we schedule.
Rowan Construction Group Santa Clara is an independent service provider, not affiliated with Boral. We also stock parts for KraftMaid, Cambria, and Silestone products.
Written by Grant Rowan, Owner, Rowan Construction Group Santa Clara at Rowan Construction Group Santa Clara, serving Santa Clara and nearby areas.






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