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Therma-Tru Construction in Lompico, CA | San Mateo Construction
San Mateo Construction provides independent Therma-Tru door installation and repair throughout Lompico, CA, with a focus on fiberglass and steel entry systems that hold up to wet winters and WUI fire rules. What makes our Therma-Tru work different here is simple: we’re not an authorized dealer pushing a catalog, we’re a Lompico General Contractor who actually installs and repairs these units on steep, wooded lots where flatland instructions don’t apply. If you need a Therma-Tru door replaced, rehung, or retrofitted in Lompico, call us at (855) 901-7266.
Why Lompico Residents Choose Us for Therma-Tru Service
Noel Carrington grew up in San Mateo County and spent nearly three decades on residential and light commercial jobs before building the team at San Mateo Construction. We know Therma-Tru’s Therma-Tru sales & service work the way it plays out on real job sites. More importantly, we know this territory. Lompico is unincorporated Santa Cruz County, not a city with a planning desk down the street. Permits run through the county, fire review runs through Cal Fire, and the roads don’t accommodate a truck with a 14-foot trailer. We plan around all of that.
On the parts side, we stock and source OEM Therma-Tru sills, sweeps, weatherstrip, and glass frames. When a threshold rots or a Fiber-Classic slab delaminates, we diagnose whether repair makes sense or replacement is the honest answer. We don’t get paid more for steering you wrong. That independence matters when a door fails on a Lompico hillside.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Lompico
Different door lines fail differently, and Lompico’s conditions accelerate every one of them. Here’s what we see most often, and why it happens here:
- Fiberglass delamination on Fiber-Classic and Smooth-Star entries. Water driven onto north-facing slopes sits against the bottom rail, wicks under the skin, and lifts it. Once the skin separates, the slab loses structural integrity and the door starts to bow in the frame.
- Wood-edge rot on Classic-Craft doors. The stiles and rails on Classic-Craft are wood, period. When rain splashes off a cantilevered deck and hits the door bottom repeatedly, that wood rots from the outside in. You can’t see it until the seal fails or the hinge screws start pulling loose.
- Benchmark steel door rust at the bottom edge and hinge side. Shaded, wooded lots keep moisture trapped. Ember-resistant weatherstripping, which we recommend and install on most Lompico retrofit jobs, sits tighter against the slab and can hold water against the steel. The result is rust that spreads under the paint film before you ever notice it.
- Factory prehung frames racking out of square. Many Lompico homes are 1950s-70s redwood cabins on pier-and-post foundations. The frames shift seasonally as soil expands and contracts. A Therma-Tru prehung unit installed without re-squaring the rough opening will bind, leak air, and eventually warp the slab.
- Failed thresholds and sweeps. The threshold-to-slab junction is where Lompico’s winter rain enters. We replace thermo-plastic sweeps and composite sills before water migrates under the door and into the subfloor.
Therma-Tru Service in Lompico: What Local Conditions Mean for Your Equipment
Here’s a fact that no generic Therma-Tru page will tell you: because Lompico sits inside the Cal Fire wildland-urban interface and has no municipal water, every exterior door we install here has to meet ember-resistant and defensible-space expectations that don’t exist in flatland cities. That means ember-resistant weatherstripping, tight gaps at the sill and jambs, and ventilation considerations that interact with the door assembly. But there’s a logistical twist most contractors never mention. Material deliveries to Lompico have to fit down single-lane private roads with no turnaround. A prehung Therma-Tru unit often arrives on a flatbed that physically cannot reach the lot. We stage those units at the last accessible point and hand-carry them to the door opening, sometimes several hundred yards up a steep drive. That changes how we schedule, what we inspect on arrival, and how we protect the slab from damage before it’s hung. Contractors who don’t work Lompico regularly learn this the hard way. We already know it.
On a steep, wooded lot off Lompico Road, we replaced a delaminated Fiber-Classic entry door on a 1960s redwood cabin where the cantilevered deck had funneled rain onto the threshold for years. We cut out the rotted jack stud, squared the rough opening, and set a new prehung Smooth-Star unit with an ember-resistant sweep and composite sill. After sealing and adjusting the strike, the door latched cleanly and the owner gained a weather-tight, fire-hardened entry. That job had every Lompico complication at once: pier-and-post settlement, WUI retrofit requirements, and a narrow driveway that forced us to walk the unit in.
Therma-Tru Models & Products We Service in Lompico
Our Therma-Tru in Brookdale and Lompico covers the full product range. We service Fiber-Classic fiberglass entry doors, the Smooth-Star series, Classic-Craft wood-edge doors, and the Benchmark steel line. When a component fails, we use OEM Therma-Tru replacement parts first: sills, sweeps, weatherstrip, and glass frames from the manufacturer preserve fit and protect any warranty-eligible components. We turn to quality aftermarket hinges and thresholds only when an OEM part is on backorder and you need the door functional now. If the slab or frame has rotted or delaminated beyond a clean repair, we say so and recommend replacement. Patching a structural failure buys you a season, not a solution.
See the difference
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AfterTherma-Tru Service Pricing in Lompico
Here’s what Therma-Tru-related construction costs in Lompico, based on the work we’ve done across the Santa Cruz Mountains:
| Service | Typical Lompico Price Range |
|---|---|
| Window Replacement (per opening) | $4,500 – $15,000 |
| Impact Window Installation (per opening) | $8,000 – $25,000 |
| Home Addition (Therma-Tru door package included) | $45,000 – $130,000 |
What drives the cost in Lompico is access: single-lane roads, hand-carry distances, and steep lot staging all add labor hours you wouldn’t pay on a flat suburban street. A free estimate gives you a written line-item quote based on your actual door opening, your slope, and your fire-hardening requirements. Call (855) 901-7266 and we’ll walk the project with you.
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
Fiber-Classic doors themselves use fiberglass skins that won’t rot, but the bottom rail seal and threshold still need to be correct. In Lompico, where winter rain blows upslope onto north-facing entries, the failure point is almost always the seam where the door meets the sill, not the fiberglass slab itself. We install composite sills, ember-resistant sweeps, and proper flashing to keep water from sitting at that junction. Call (855) 901-7266 for an inspection if you see water staining at the door bottom.
Therma-Tru doors are not inherently ember-rated, and no factory door by itself satisfies Cal Fire’s WUI requirements. What matters is the installation: tight clearances at the jambs and sill, ember-resistant weatherstripping, and proper sealing so an ember can’t lodge in a gap. We install Therma-Tru in Mount Hermon and Lompico with WUI compliance in mind, and we can coordinate with your county fire review as part of the permit package.
We stage it. The delivery truck unloads at the nearest accessible point, typically the base of the private road or a wide spot on the shoulder, and our crew hand-carries the prehung unit to the opening. We protect the slab and frame during the carry and inspect for transit damage before installation. This is standard procedure for Lompico jobs, not an add-on.
Surface rust on a Benchmark steel door can often be sanded, treated, and repainted if caught early. Rust that has eaten through the metal or spread along the hinge side means the slab is compromised, and replacement is the honest recommendation. We’ll tell you which situation you have during a free inspection. Call (855) 901-7266 to schedule one.
A door replacement alone typically does not trigger a well-yield or septic-capacity review, because it doesn’t add a bedroom, bathroom, or water fixture. However, if the door is part of a larger addition or remodel that increases occupancy or plumbing demand, the county will flag it. We handle door work as part of whole-home projects under one contract, so if your Therma-Tru install is attached to a bigger scope, we’ll coordinate the permitting accordingly. Estimates are free; call (855) 901-7266 to talk through your situation.
Service Areas Near Lompico
San Mateo Construction serves Lompico and the surrounding Santa Cruz Mountains communities. If you’re in Therma-Tru service in Ben Lomond, we work those same single-lane roads and steep lots. For homeowners up the ridge, we also offer Therma-Tru service in Bonny Doon. Our Lompico service area coverage includes the full 95005 ZIP, and we regularly work adjacent mountain terrain with the same county permitting and Cal Fire review process.
Book Your Therma-Tru Service in Lompico Today
Tell me what you actually need, and we’ll figure out the right way to build it. Call (855) 901-7266 for a free Therma-Tru estimate in Lompico. We’ll walk your door, your lot, and your permitting situation before you commit to anything.
Written by Noel Carrington, Owner at San Mateo Construction, serving Lompico and the Santa Cruz Mountains.