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Therma-Tru Construction in Lompico, CA | Gold Star Contractors
We install, re-hang, and re-flash Therma-Tru entry, patio, and sidelite door systems throughout Lompico, CA. The one thing that sets our Therma-Tru work apart here is that we detail every door to unincorporated Santa Cruz County wildland-urban interface code, not just a manufacturer spec sheet. If you need a Therma-Tru door squared, resealed, or replaced on a steep canyon parcel, call (833) 382-8544 for a free estimate.

Why Lompico Residents Choose Us for Therma-Tru Service
Therma-Tru builds a solid fiberglass and steel door, but a door is only as good as the rough opening it’s set into. Around Lompico, those rough openings are rarely square, rarely flashed, and often sitting on pier-and-post foundations that move with every wet winter. We’ve spent years working canyon-lot door openings across the Santa Cruz Mountains, so we know what a racked frame does to multi-point locks and what an unflashed threshold does to a bottom rail. Noel Carranza, our owner and Lompico General Contractor, got his start doing finish carpentry on older tract homes down in Orange County, where he learned to fix what previous contractors botched rather than cover it up. That habit carries straight into our Lompico door work: we square the frame, rebuild the sill, and set the door so it actually closes the way Therma-Tru intended.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Lompico
- Chalked, faded, and pitted fiberglass slabs: Long, unshaded south- and west-facing entries in the Lompico canyons bake in summer sun, and Therma-Tru finishes break down years faster than on shaded suburban lots. We reprep and repaint, or swap the slab when the skin is too far gone.
- Rotted bottom rails and thresholds from wind-driven rain: Steep canyon lots catch winter storms head-on, and rain finds every unflashed gap. Mid-century owner-built cabins around Lompico often have doors dropped into openings with no sill pan, so the bottom rail soaks and rots. We rebuild the threshold and set a proper pan before the new unit goes in.
- Sticking doors and misaligned multi-point locks: Pier-and-post and partial-foundation homes shift through wet and dry seasons. The door slab doesn’t fail; the frame racks, and hardware seizes or drags. We re-square and re-hang rather than blaming the door.
- Delaminated woodgrain skins and split weatherseal gaskets: Moisture and UV swing in the redwood canyons is hard on Therma-Tru skins and gaskets. Once a gasket splits, wind-driven rain and cold air slip past the seal, and we replace them before the damage moves into the frame.
- Undersized or unflashed patio and sidelite units: Many Lompico homes have Therma-Tru patio and sidelite systems paired with wood-framed vintage openings that were never detailed for a mountain climate. We refit, reflash, and bring the whole assembly up to ember-resistant standard.
Therma-Tru Service in Lompico: What Local Conditions Mean for Your Equipment
Lompico is unincorporated Santa Cruz County, tucked into the wildland-urban interface off Highway 17. That means any door replacement that changes an opening or adds a new entry is permitted through the County, and Chapter 7A ignition-resistant construction plus Cal Fire defensible-space review apply. A simple door swap that would be an over-the-counter signoff in a city becomes a code path here. For a homeowner needing Therma-Tru in Mount Hermon or on a private lane off Lompico Road, that shapes how we do the work: we bring the surround to ember-resistant standard, we flash to wind-driven-rain conditions, and we stage materials for hand-carry when the lane has no turnaround. This is not suburban tract door work, and doing it halfway means a county reviewer sends you back to fix it before winter.
Therma-Tru Models & Products We Service in Lompico
We work on Therma-Tru Fiber-Classic entry doors, both smooth and woodgrain fiberglass, on the 1970s owner-built homes and rebuilds common in Lompico. We also service Smooth-Star fiberglass doors, often repainted after canyon sun and rain exposure, and Classic-Craft premium fiberglass entry systems on newer custom builds. For parts, we use Therma-Tru OEM replacement slabs, hinges, multi-point hardware, sill pans, and gaskets where the model still has them, and we turn to proven aftermarket seals and thresholds only when an OEM part is discontinued. We’ll repair and re-flash a sound Therma-Tru door and frame before recommending a full replacement, but when rot has reached the bottom rail and there was never a sill pan, the honest fix is a new prehung unit set into a rebuilt, correctly flashed frame.
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AfterTherma-Tru Service Pricing in Lompico
Pricing for Therma-Tru work in Lompico depends on the opening, the fire-code scope, and what condition the frame is in. Here are the ranges we quote from:
| Service | Price Range |
|---|---|
| Therma-Tru entry door replacement (installed, with frame and threshold rebuild) | $8,000 – $25,000 |
| Impact-rated exterior door and glazing upgrade for WUI ember/wind exposure | $8,000 – $25,000 |
| Roof Repair | $400 – $1,800 |
| Home Addition | $45,000 – $130,000 |
Every estimate includes a walkthrough of the opening, a written line-item quote, and the permit scope laid out plainly. Call (833) 382-8544 and we’ll price your Lompico door for what it actually needs.
Serving Lompico, CA — Our Local Coverage Area
We’re based in the Lompico 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 – Therma-Tru Construction in Lompico
Yes, in most cases. Because Lompico is unincorporated Santa Cruz County and sits inside the wildland-urban interface, any door replacement that changes an opening or adds a new entry is permitted through the County, with Chapter 7A ignition-resistant construction and Cal Fire defensible-space review attached. We pull the permits and handle the review so the job clears before winter rains arrive. Call (833) 382-8544 and we’ll confirm your specific scope.
That’s UV and moisture swing. Unshaded south- and west-facing entries in the Lompico canyons get hard summer sun, and Therma-Tru surface finishes chalk, fade, and pit years faster than on shaded suburban lots. Cracking at the skin usually follows once the finish fails and moisture gets in. We reprep and repaint salvageable slabs, or swap the slab when the skin has gone too far. Call (833) 382-8544 for a finish assessment.
Usually not. On Lompico’s pier-and-post and partial-foundation homes, the frame racks with seasonal ground movement, and the hardware seizes or misaligns. The slab itself is typically fine. We re-square the frame, re-hang the door, and realign the multi-point locks before recommending a replacement. Call (833) 382-8544 and we’ll diagnose it on site.
Often not. Many Lompico lots are accessed by steep private roads with no turnaround, so concrete trucks and material deliveries can’t always get close. We stage slabs and tools on foot when needed. On a recent job off Lompico Road, our crew hand-carried a Fiber-Classic entry door and tools up a narrow lane with no vehicle access, built the sill pan on site, and set the new prehung unit with OEM hinges and weatherseal, then detailed the surround to Chapter 7A ember-resistant standards, similar to how we handle Therma-Tru repair in Felton. We plan for this from the first visit. Call (833) 382-8544 and we’ll come assess your access before we quote.
Yes. Lompico sits in the wildland-urban interface, so replacement doors, sidelites, and any new entry openings are reviewed under Chapter 7A ignition-resistant construction and Cal Fire defensible-space rules. We detail the surround, flash to ember and wind-driven-rain exposure, and handle the county review. Call (833) 382-8544 for a door that clears code the first time.
Service Areas Near Lompico
We serve Lompico and the surrounding mountain and valley communities, including Therma-Tru service in Communications Hill, Therma-Tru service in Ben Lomond, and nearby Boulder Creek, Scotts Valley, and Felton. If you’re outside Lompico proper, call and we’ll confirm coverage for your parcel.
For Therma-Tru sales and service across the Santa Cruz Mountains, see our Therma-Tru sales & service page. And if you’re checking whether we cover your specific road or canyon, our Lompico service area page lists the neighborhoods we work in.
Book Your Therma-Tru Service in Lompico Today
Whether your Therma-Tru door needs a re-hang, a new threshold, a wildfire-code upgrade, or a full replacement, we’ll get you scheduled, just as we do for Therma-Tru in Brookdale. Call (833) 382-8544 for a free estimate, and we’ll bring the permit scope and a straight answer. One call, done right, that’s the only way we know how to run a job.
Written by Noel Carranza, Owner at Gold Star Contractors, serving Lompico and the Santa Cruz Mountains.