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Therma-Tru Construction in Lompico, CA | San Bernardino Contractors
We install, repair, and replace Therma-Tru entry door systems throughout Lompico, including Fiber-Classic, Smooth-Star, Classic-Craft, and Benchmark lines. We’re an independent contractor, not a Therma-Tru authorized dealer, which means we answer to you, not a manufacturer program. What makes our Therma-Tru work different here is simple: we know how these doors fail on steep mountain lots with narrow private roads, wet winters, and wildfire exposure. Call (855) 473-5620 for a free estimate on any Therma-Tru project in Lompico.
Why Lompico Residents Choose Us for Therma-Tru Service
We’ve installed and repaired Therma-Tru in Mount Hermon and across the Santa Cruz Mountains long enough to know that a door that works fine in San Jose won’t last three winters up here without proper flashing, sills, and clearance from grade. Ruben Castillo, our owner, learned framing and door installation the hard way: watching his uncle reroof houses and frame out garages in San Bernardino on weekends, then getting serious about load paths and building science at San Bernardino Valley College. That background means we treat every door rough opening as a structural job, not a trim job.
We’re locals serving Lompico service area homeowners, which means we’ve seen what happens when a Therma-Tru door gets installed on a cut hillside lot without accounting for drainage. We stock common OEM sills, sweeps, weatherstripping, and glass kits for fast turnaround, and we source the rest from Therma-Tru’s parts network. No subcontractor shuffle. One crew, one point of accountability, from the first measurement to the final coat of UV-stable finish.
Styles & brands we work with







Common Therma-Tru Construction Problems We Solve in Lompico
- Bottom rail rot and delamination: Lompico’s wet winters keep door bottoms saturated for weeks at a time. When a Therma-Tru door sits too close to grade or lacks a proper sill pan, the bottom rail wicks moisture, the slab delaminates, and you get soft spots you can press with your thumb. We rebuild the threshold with elevated sill pans and re-hang the door so water doesn’t pool at the base.
- UV finish failure on exposed entries: Homes on south-facing and west-facing slopes take intense afternoon sun once the morning fog burns off. Therma-Tru finishes, especially on older Fiber-Classic doors, chalk and pit after a few years without a UV-stable topcoat. We strip, prep, and refinish with coatings that hold up at altitude, and we’ll tell you honestly if a new slab makes more sense than refinishing.
- Racked frames from hillside movement: Lompico’s cut hillside lots shift with seasonal moisture. We see Therma-Tru doors that were square at install but now bind at the latch, drag at the header, and leak air through compressed weather seals. The issue is usually foundation movement or a poorly attached frame, not the door itself. We fix the rough opening, shim the frame properly, and re-hang so seals actually seal.
- Ember intrusion at thresholds and weatherstripping: Current Santa Cruz County and Cal Fire standards call for ember-resistant detailing on exterior doors in high-fire zones. Many older Therma-Tru doors in Lompico were installed before these rules existed, with worn sweeps and gaps at the threshold. We replace with ember-resistant weatherstripping and tight-fitting sill assemblies that keep burning embers out during wildfire season.
- Warped or cracked slabs from temperature swings: Mountain temperature swings between day and night stress fiberglass and steel skins. We see hairline cracks at panel joints and stiles, especially on doors that were never properly sealed after installation. We assess whether the slab can be repaired or whether replacing just the slab, rather than the whole frame, is the smarter move.
Therma-Tru Service in Lompico: What Local Conditions Mean for Your Equipment
Lompico’s narrow, winding private roads often can’t accommodate a standard delivery truck, so Therma-Tru doors and oversized slabs frequently have to be offloaded at the road and shuttled up steep driveways in smaller vehicles. That’s a logistics step that adds time and cost to every door installation here, and most contractors used to flat suburban lots don’t plan for it. We do. On a steep, wooded lot off Lompico Road, we handled a Therma-Tru repair in Felton when we replaced a failing Fiber-Classic entry door that had been installed without proper flashing; winter runoff had rotted the bottom rail and delaminated the slab. We hand-carried the new Smooth-Star door up the driveway, rebuilt the threshold with an elevated sill pan and ember-resistant weatherstripping, and finished it with a UV-stable topcoat to handle the afternoon sun. That’s standard procedure for us in Lompico, not an exception. It’s also why our labor estimates here are built around what the site actually requires, not a generic per-door rate. We know going in that a standard mixer truck won’t reach most driveways, a standard slab won’t fit in a pickup bed without planning, and a standard bottom rail won’t survive the first wet season without better flashing.
Therma-Tru Models & Products We Service in Lompico
We work on all four major Therma-Tru lines: Fiber-Classic, Smooth-Star, Classic-Craft, and Benchmark. Fiber-Classic is the one we see most often in older Lompico homes, usually with finish fatigue or bottom rail issues. Smooth-Star shows up on newer builds and remodels, with a smoother skin that holds finish better but still needs proper flashing. Classic-Craft is the premium line, and we treat it accordingly: careful slab handling, real wood edge banding, and finish-matched touch-up work for any repairs.
Our parts approach is straightforward. We source OEM Therma-Tru sills, sweeps, weatherstripping, and glass off the manufacturer’s parts network whenever they’re available, because those parts fit and perform as designed. For discontinued components, we use aftermarket equivalents that meet or exceed original specs. You’ll know which we’re using and why. We stock common parts locally for fast Lompico turnaround, and anything we don’t stock is ordered directly from Therma-Tru distributors.
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AfterTherma-Tru Service Pricing in Lompico
Door-specific pricing in Lompico depends on the model, the condition of the rough opening, and whether the site needs the off-road material shuttle we described above. As a Lompico General Contractor, our project pricing covers the broader scope we handle across the home. Here’s a look at our market-calibrated price ranges:
| Project | Price Range |
|---|---|
| Kitchen Remodel | $14,000 – $45,000 |
| Bathroom Remodel | $9,000 – $28,000 |
| Roof Replacement | $8,000 – $20,000 |
| Window Replacement | $4,500 – $15,000 |
| Home Addition | $45,000 – $130,000 |
Every project starts with a free estimate that includes a site walk, rough opening inspection, and a written line-item quote. No change orders dropped on you mid-project. If the hillside shifts your frame two winters out, we’d rather catch that early than patch a symptom. Call (855) 473-5620 to schedule yours.
Serving Lompico, CA — Our Local Coverage Area
We’re based in the Lompico area and also know Therma-Tru in Brookdale 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, but it requires planning and a smaller delivery vehicle or manual shuttle from the road. We’ve hand-carried Smooth-Star and Fiber-Classic slabs up driveways off Lompico Road more times than we can count. The key is measuring the path before ordering the door: width turns, canopy clearance, and the final approach to the entry. Call (855) 473-5620 and we’ll assess your specific driveway before you spend a dollar on materials.
Fiber-Classic is the most common in older Lompico cabins and rural homes, and it holds up decently if the finish is maintained and the bottom rail stays dry. Smooth-Star does better on newer installs because the skin resists chalking longer. Classic-Craft is rare up here but we service it when we see it. The common failure across all three is water at the bottom rail, not the material itself. That’s why our installs focus on sill pans and elevation above grade.
Yes, in most cases. Exterior door replacement in Lompico falls under Santa Cruz County building jurisdiction, not a city department, and the county’s wildfire hazard overlay adds requirements for ember-resistant weatherstripping, tight thresholds, and sometimes specific glazing. We pull permits and handle inspections, and we’ll tell you during the estimate exactly what your specific lot triggers. Call (855) 473-5620 for a free assessment of what your door replacement will actually require.
In Lompico, it’s usually the foundation or the rough opening, not the door slab. Hillside lots move with seasonal moisture, and that movement racks door frames out of square. We check the slab for flatness, the frame for square, and the foundation for settlement before we start adjusting hinges or planing the door. The fix is often re-shimming and re-hanging, not replacing the door. But if the slab is delaminating or the frame is rotted, replacement is the smarter call.
We look at three things: the condition of the slab, the condition of the frame and sill, and the cost of parts versus the cost of a new pre-hung unit. If the slab is sound but the sill is rotted, we replace the sill and hardware. If the slab is delaminating and the frame is twisted, we replace the whole unit. And if the door is pre-2005 and missing ember-resistant detailing, we usually recommend replacement to meet current county fire standards. Call (855) 473-5620 and we’ll give you an honest read on which direction makes sense for your specific door.
Service Areas Near Lompico
We serve Therma-Tru service in Ben Lomond just down the valley, plus Therma-Tru service in Cambrian Park and surrounding San Lorenzo Valley communities. Our Therma-Tru sales & service experience spans the Santa Cruz Mountains, so we’re familiar with the same terrain, climate, and county code requirements wherever your door sits.
Book Your Therma-Tru Service in Lompico Today
If it’s not built right the first time, you’re just paying for it twice. We’d rather do it right the first time, and that starts with a free site assessment of your Lompico door, threshold, and rough opening. Call (855) 473-5620 now to schedule your free estimate, and we’ll give you a written line-item quote before any work begins.
Written by Ruben Castillo, Owner at San Bernardino Contractors, serving Lompico and the Santa Cruz Mountains.