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Therma-Tru Construction in Boulder Creek, CA | Moreno Valley Builders
We provide independent Therma-Tru construction service across Boulder Creek, from entry door replacement to full rough-opening correction on mountain cabins and newer canyon builds. What makes our Therma-Tru work different here is the same thing that makes building in Boulder Creek harder than building in the valley below: county permitting, WUI fire hardening, and staging materials up narrow canyon roads. If your Therma-Tru door is binding, leaking, or failing a fire-hardening review, call (877) 752-3154.
Why Boulder Creek Residents Choose Us for Therma-Tru Service
We’ve installed and repaired Therma-Tru entry, patio, and sidelite systems across the Santa Cruz Mountains for years — including Therma-Tru service in Brookdale — so we know how these doors actually behave in fog-belt, high-fire-hazard canyon conditions. We’re an independent contractor, not affiliated with or authorized by Therma-Tru, which means we diagnose the opening and the assembly honestly rather than pushing a replacement. Noel Trevino, our owner and general contractor, grew up in Moreno Valley and spent decades correcting work other crews got wrong. If the details aren’t right on paper, they won’t be right in the wall. That applies double to door openings in Boulder Creek, where a small flashing mistake turns into a rotted sill pan within two wet seasons.
We carry Therma-Tru OEM replacement slabs, sweeps, and weatherstrip for the common Fiber-Classic, Smooth-Star, and Classic-Craft lines. When the frame is sound, we replace the slab. When the frame isn’t, we tell you before we quote anything.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Boulder Creek
- Fiberglass skin chalking and sun damage. South- and west-facing entries in Boulder Creek get hit hard when canyon fog burns off into strong afternoon sun. The factory finish on Fiber-Classic and Smooth-Star doors oxidizes years before the slab itself fails. We refinish or replace slabs and recommend UV-rated coatings that hold up better at 700 feet elevation than the standard factory coat.
- Thresholds packed with redwood litter. Fir needles and redwood debris pile against door sweeps every fall on wooded lots. That traps moisture against the sill pan and rots the subfloor right under a door that still looks fine from the street. We pull the unit, inspect the rough opening, and replace what’s rotted before it spreads.
- Swollen rough openings after wet winters. Heavy winter rain on steep lots drives sheets of water against entries with no overhang. If the flashing lacks a back dam, water wicks behind the jamb and swells the rough-opening lumber out of square. We re-square, sister framing where needed, and rebuild the flashing correctly.
- Drafty, hard-to-latch doors from deferred WUI upgrades. Older doors in Boulder Creek often skip ember-resistant weather seals and noncombustible thresholds. By the second dry season, the door drafts and the latch plate stops lining up. We upgrade to ember-rated seals and stainless thresholds during repair, so the door actually passes WUI review.
- New slab in a bad frame. We see this after other crews replace only the slab. A new Therma-Tru slab dropped into a racked or rotted opening binds again by the next wet season. We fix the opening first, then hang the door.
Therma-Tru Service in Boulder Creek: What Local Conditions Mean for Your Equipment
Boulder Creek is unincorporated Santa Cruz County, meaning every exterior door change that alters the building envelope runs through county Building & Safety plus WUI review rather than a city counter. That’s a different process than Saratoga or Santa Clara, and it changes how we order and stage Therma-Tru units, including for Therma-Tru repair in Ben Lomond. Canyon lots off Highway 9 and Bear Creek Road frequently can’t take a standard delivery truck or a full-length prehung door without a wide turnaround. So we measure the rough opening in person, pre-hang the unit in our shop when the approach allows, and stage materials for smaller loads before they head up the grade. It’s slower than a flat-lot swap, but it means your door arrives square, sealed, and ready to set without a flatbed jackknifed in your driveway.
On a redwood-shaded cabin off Bear Creek Road, our crew found the Therma-Tru Fiber-Classic entry door dragging on its strike side after two wet winters. The sill pan had trapped fir litter, the rough opening had swelled out of square, and the original flashing never had a back dam. We pulled the unit, sistered and re-squared the jamb, set a new sloped sill pan with stainless fasteners, and re-hung a fresh Fiber-Classic slab so it latched clean through the first fall storm. That’s the difference between replacing a part and fixing the opening.
Therma-Tru Models & Products We Service in Boulder Creek
We service and install the full Therma-Tru entry lineup: Fiber-Classic, Smooth-Star, and Classic-Craft series, including patio doors and sidelite assemblies. Our Therma-Tru sales & service work follows one rule: OEM slabs, sweeps, and weatherstrip where the frame is sound; quality aftermarket sill pans and stainless fasteners for the WUI and damp details the factory parts don’t cover. We stock common sweeps, astragals, and sill caps locally for faster Boulder Creek turnaround. Hard-to-find Classic-Craft panel slabs we order per-project and stage for canyon-road delivery.
See the difference
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AfterTherma-Tru Service Pricing in Boulder Creek
Door repair costs depend on what’s behind the slab. Here’s how common Therma-Tru-related scopes line up:
| Scope | Typical Range |
|---|---|
| Roof Repair (frequently paired with entry flashing fixes) | $400 – $1800 |
| Walk-In Shower Installation (common in mountain bath remodels) | $4500 – $12000 |
| Kitchen Remodel (full scope including door and window work) | $14000 – $45000 |
What drives Therma-Tru door work in Boulder Creek is the rough opening. A clean slab swap on a square frame is straightforward. A rotted sill pan, a racked jamb, or a WUI upgrade that requires new flashing runs higher because the frame work comes first. Our free estimate includes opening inspection, measurement, and a line-item quote. Call (877) 752-3154 to schedule one.
Serving Boulder Creek, CA — Our Local Coverage Area
We’re based in the Boulder Creek area and know this community well, and we also handle Therma-Tru repair in Lompico. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Boulder Creek
Yes, in most cases. Replacing an exterior door in its existing rough opening without altering the opening size is often classified as a repair, but if the work changes the building envelope, fire-rated assembly, or exterior dimensions, Santa Cruz County Building & Safety and WUI review apply. We confirm permit requirements on a project basis and handle the paperwork as part of the job. Call (877) 752-3154 and we’ll check your specific opening.
Because the rough opening has likely swelled from moisture getting behind the jamb through failed flashing or a clogged sill pan. Boulder Creek’s heavy winter rain and redwood litter trap water exactly where it does the most damage. The fix is opening-level work, not latch adjustment. Call (877) 752-3154 for an inspection quote.
Sometimes, but not always. Many lots off Highway 9 and Bear Creek Road can’t fit a standard delivery truck or need a wide turnaround. We measure, pre-hang, and stage for smaller loads so the unit arrives without drama. Tell us your driveway length and switchbacks when you call (877) 752-3154.
The slab holds up. The finish doesn’t, especially on south- and west-facing entries where fog burns off into strong afternoon sun. Factory finishes chalk and oxidize years early in this elevation range. We recommend and apply UV-rated coatings that last longer than the factory coat in Boulder Creek conditions.
It depends entirely on the frame and sill. If the rough opening is square and the sill pan is intact, a new OEM slab or sweep is the smart money. If the sill has rotted or the jamb has racked, replacing only the slab means the new door binds again by next winter. We’ll tell you the truth either way. Call (877) 752-3154 for a free estimate.
Service Areas Near Boulder Creek
Our Boulder Creek service area coverage extends through the Santa Cruz Mountains and down into the valley. We also run Therma-Tru service in Saratoga and Therma-Tru service in Santa Clara. Same crew, same material standards, different road conditions.
Book Your Therma-Tru Service in Boulder Creek Today
We manage Therma-Tru construction work in Boulder Creek and Therma-Tru in Felton from opening inspection to final latch check. Call (877) 752-3154 to schedule your free estimate. Noel and the crew will tell you exactly what the opening needs before any work starts.
Written by Noel Trevino, Owner at Moreno Valley Builders, serving Boulder Creek and the Santa Cruz Mountains.