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Therma-Tru Construction in Bonny Doon, CA | San Bruno Construction
We install and service Therma-Tru door systems across Bonny Doon, from off Empire Grade to parcels deep off Bonny Doon Road. As an independent contractor, not a factory-authorized dealer, we make repair-vs-replace calls based on what actually holds up in mountain conditions rather than what protects a warranty. That matters here, where WUI fire codes and winter rain punish door assemblies harder than any flatland subdivision ever will.
Noel Carvalho grew up off El Camino Real in San Bruno and trained in construction technology at Skyline College, where he learned to read plans and understand load paths before a tool comes out of the truck. That habit carries into every Therma-Tru door we hang or repair in Bonny Doon. Call (866) 472-1908 for a free estimate. We’re your local Therma-Tru sales & service resource for this side of the mountains.
Why Bonny Doon Residents Choose Us for Therma-Tru Service
Therma-Tru makes a solid door, but mountain service demands more than brand familiarity. Our crew has installed and serviced these door systems across the Santa Cruz Mountains for years, including a pile of post-CZU-fire rebuilds where fire-rated assemblies and precise fit are not optional. We know the Fiber-Classic, Smooth-Star, Traditions, and Pulse lines from the hinge side out.
Bonny Doon homeowners call us because we show up with the right parts, understand what redwood-framed rough openings do over time, and never pad a repair into a replacement when a properly sourced component fixes the problem. We stand behind every installation with independent craftsmanship, not a factory warranty. Noel Carvalho runs every Therma-Tru job through the same lens he applies to a full Bonny Doon service area remodel: does it actually work here, on this parcel, with this exposure?
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Bonny Doon
- South-facing Fiber-Classic slabs warping at the top rail. Summer sun on dark factory finishes heats the door face unevenly. The top rail moves, the latch stops lining up, and the door rubs. We see this constantly on Bonny Doon homes with direct southern exposure and little tree cover.
- Smooth-Star frames failing on out-of-plumb rough openings. Older redwood cabins settle. The original opening drifts, the frame flexes, and wind-driven rain finds the gap at the sill. Bottom rail swells, skin delaminates. We reset the rough opening, not just the door.
- Traditions closer systems slamming in dusty conditions. WUI summers here are dry and dusty. The cushioned close mechanism loses dampening, the door slams, and the frame cracks at the jamb. It sounds like a shotgun when it goes.
- Pulse decorative glass fogging after wildfire smoke and freeze-thaw cycles. Smoke residue works into the seal, winter rains freeze overnight, and the panes fog permanently. We replace the glass cassette rather than the whole door when the slab is sound.
- Rot hidden behind kick plates and threshold covers. Winter rain plus leaf litter on shaded lots keeps the bottom of exterior doors damp for months. By the time you see the rot, the sill is usually gone. We cut it out and install a sloped sill with proper flashing.
Therma-Tru Service in Bonny Doon: What Local Conditions Mean for Your Equipment
Bonny Doon’s post-CZU-fire rebuilds must meet WUI exterior door requirements. That single fact changes how Therma-Tru work plays out here compared to ten miles down the hill. Many Therma-Tru entries we service in Bonny Doon are paired with fire-rated assemblies and noncombustible thresholds, a detail flatland installers rarely handle. A door that meets code in Santa Cruz often fails a WUI inspection at the end of a narrow drive off Empire Grade. We pull permits, coordinate inspections, and make sure the door system meets the same fire-hardening standard as the roof and siding around it. On a steep private drive off Empire Grade, we replaced a warped Fiber-Classic entry door on a rebuilt home where the original install had skipped a proper sill pan. We reset the rough opening, added a sloped sill and WUI-compliant threshold, and finished with a factory-matched paint to keep the fire-resistant envelope intact. The homeowner now has a door that closes without a shoulder and sheds winter rain instead of soaking the subfloor.
Therma-Tru Models & Products We Service in Bonny Doon
We service all four major Therma-Tru lines: Fiber-Classic, Smooth-Star, Traditions, and Pulse. For warranty-valid repairs, we source OEM Therma-Tru sills, hinges, and glass cassettes. But we do not treat the factory parts list as gospel. Where aftermarket weatherstripping and finish-grade fasteners outperform OEM in mountain conditions, we use them and tell you why. If a door slab has warped beyond adjustment or the frame is hiding rot, we recommend replacement with a properly sized, fire-rated assembly instead of chasing a repair that will fail again in two winters. We keep common Therma-Tru components stocked locally so Bonny Doon turnaround times stay short even when the supply chain stalls.
See the difference
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After
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AfterTherma-Tru Service Pricing in Bonny Doon
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Home Addition | $45,000 – $130,000 |
| Roof Replacement & Installation | $8,000 – $20,000 |
A free estimate means Noel walks the door, checks the reveal, locks the slab through its swing, and gives you a written line-item number before any work starts. Call (866) 472-1908 to schedule yours.
Serving Bonny Doon, CA — Our Local Coverage Area
We’re a Bonny Doon General Contractor and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Bonny Doon
Can you install a Therma-Tru door that meets WUI fire-resistance standards for a Bonny Doon rebuild?
Yes. We install Therma-Tru entry systems paired with fire-rated assemblies and noncombustible thresholds that meet current WUI requirements for Bonny Doon rebuilds. We pull permits and coordinate the inspection so the door passes the same hardening review as the rest of the envelope. Call (866) 472-1908 and we will walk your specific parcel requirements.
My Fiber-Classic door is sticking only in summer – do I need a new door or just an adjustment?
Usually an adjustment, not a replacement. Summer heat on a south-facing Fiber-Classic slab causes the top rail to expand and warp slightly, throwing the latch out of alignment. We can often reset the hinges and adjust the strike. If the warp exceeds the adjustment range, replacement becomes the honest recommendation. Either way, estimates are free.
How do you handle Therma-Tru door replacement on a narrow, unpaved private drive?
We stage materials where the truck can safely park, then hand-carry the door and tools to the house. On steep parcels off Empire Grade or Bonny Doon Road, we bring the door up assembled when possible and plan the removal so you are never left with an open rough opening overnight. It adds labor, but we account for it in the quote up front.
Do you stock Therma-Tru glass cassettes for Pulse doors if the seal fails?
Yes, we keep common Pulse glass cassette sizes in stock for Bonny Doon service calls. If the slab is sound and only the sealed unit has fogged, we replace the cassette. That avoids the cost of a full door replacement for what is almost always a localized seal failure.
Is it worth repairing a Traditions door with a failed closer, or should I replace the whole unit?
If the closer has failed but the slab and frame are solid, repair is usually worth it. We replace the cushioned close mechanism and check the jamb for the cracking that slamming causes. If the frame is split, replacement costs less long-term than patching. Call (866) 472-1908 for an exact assessment.
Service Areas Near Bonny Doon
We handle Therma-Tru work throughout the Santa Cruz Mountains and up the Peninsula. If you are in Therma-Tru service in Felton or Therma-Tru service in Mount Hermon, we are already working in your area. We also cover San Bruno, South San Francisco, Millbrae, Burlingame, Brisbane, and Colma.
Book Your Therma-Tru Service in Bonny Doon Today
If your Therma-Tru door is sticking, slamming, fogging, or letting water in, do not wait for the next storm. Call (866) 472-1908 to schedule a free estimate. We will tell you straight whether it is a repair or a replacement, and what it costs before anything gets ordered.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Bonny Doon, Pasatiempo, and the Santa Cruz Mountains. Good construction doesn’t announce itself – it just works, year after year.