Kitchen remodeling
Bathroom remodeling
Home additions & ADU
Roofing
Windows & doors
Driveway & pavers
FenceFree written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Therma-Tru Construction in Ben Lomond, CA | San Bruno Construction
We provide independent Therma-Tru door installation and service across Ben Lomond, specializing in how mountain moisture, redwood duff, and hillside drainage attack entry systems. The thing that makes our Therma-Tru work different here is simple: we treat every door install as a drainage and rot-management problem first, because that’s what Ben Lomond actually demands. We’re San Bruno Construction, led by Noel Carvalho, and we coordinate the full scope of Therma-Tru service from slab replacement to complete entry rebuilds. Call (866) 472-1908 for a free estimate.
Why Ben Lomond Residents Choose Us for Therma-Tru Service
We’ve spent years working Therma-Tru doors in rough conditions, and we know which models hold up and which fail early when parked under a redwood canopy. We carry Therma-Tru OEM sills, sweeps, weatherstrip, and hinge hardware so a repair seals to spec, not to whatever generic part a supply house had on the shelf. Noel Carvalho grew up in San Bruno and trained in construction technology at Skyline College, where he learned to read load paths and think through a project before a single tool comes out of the truck. That background is why our Therma-Tru in Lompico and Ben Lomond installs account for slope, drainage, and tree-fall debris before we ever hang the slab.
We’re an independent contractor, not manufacturer-affiliated or authorized, which means our work is judged by fit, sealing, and how the entry holds up over wet winters, not by a dealer badge. And because we’re a Ben Lomond General Contractor, the same crew that fixes your door can also handle the roof repair, kitchen remodeling, or bathroom remodeling that often surfaces once we start opening up a rotted threshold in a mountain cabin. One contractor, every phase.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Ben Lomond
- Bottom rail swell and delamination from redwood duff. Ben Lomond lots sit under heavy redwood litter, and fog drip concentrates at the entry. Duff packs against the threshold, holds moisture for months, and the bottom rail on a Classic-Craft or Fiber-Classic door starts to swell and separate. The fix is usually slab reset with an OEM sweep plus a drainage-friendly threshold detail.
- Cracked or crazed fiberglass skins on south-facing hillside walls. Older Fiber-Classic entries get brutalized when a hillside wall faces direct afternoon sun and then cycles through fog-driven moisture. The skin at the stile edges is where it shows first. We can often repair early crazing; if the skin is cracked through, we’ll tell you straight that a replacement slab is the honest call.
- Seals and hinges fatiguing under extreme mountain humidity swings. Winter fog and fall fire-season dryness put a lot of movement on a door. Original weatherstrip compresses, hinges sag, and water finds the gap. Replacing with OEM weatherstrip and resetting hinge hardware gets the slab closing clean again.
- Sill rot where gutter overflow dumps on the entry. Ben Lomond roofs collect redwood litter fast, and when a gutter overflows, the water lands right at the door sill. We see Therm-Tru sills rotted on one corner while the rest of the frame is fine. A sill replacement beats tearing out a perfectly good door.
- Factory finish breakdown at the bottom rails and sidelight edges. Smooth-Star slabs hold up well, but tree-fall debris and constant fog drip chew through the factory finish at the bottom rail and along sidelight edges. Once the substrate is exposed, rot follows. We re-finish or replace depending on how far it’s gone.
Therma-Tru Service in Ben Lomond: What Local Conditions Mean for Your Equipment
Here’s the Ben Lomond-specific detail that most door companies miss: your entry door doesn’t fail from the weather you think it does. On lots along Highway 9 where the canopy is thick, redwood duff and fog drip collect at the threshold far more than direct rain ever hits the door face. That means the failure point on a Mount Hermon Therma-Tru service door or one in Ben Lomond is almost always the bottom rail and sill, not the slab itself. One job that sticks with us was a stepped pier-and-beam cabin off Highway 9 where the Fiber-Classic entry had swollen and delaminated at the bottom rail from years of duff packing against the threshold. We replaced the rotting sill, reset the slab with an OEM sweep and weatherstrip, and added a drainage-friendly threshold detail and overhang trim so debris and fog drip shed instead of pooling. That door now closes clean and the frame is protected from the next wet season. This is a Ben Lomond rot pattern you won’t see in flat, open valley towns, and it changes how we spec every Therma-Tru install we do in the 95005 ZIP.
Therma-Tru Models & Products We Service in Ben Lomond
We work on the full Therma-Tru residential lineup: Fiber-Classic, Smooth-Star, Classic-Craft, and the Benchmark entry-level fiberglass line. When a door needs a slab, sill, sweep, or weatherstrip, we use Therma-Tru OEM parts where they’re available so the seal and fit match factory spec. For glass inserts, trim, and hardware where OEM isn’t the right value, we use quality aftermarket options and tell you exactly what you’re getting. If you’re weighing a repair against a replacement on an older mountain cabin entry, we’ll walk you through the math honestly, based on what’s actually failing.
We also supply and install new doors through our broader Therma-Tru sales & service work, which means we can spec the right door system for your Ben Lomond hillside and stand behind the install ourselves.
See the difference
Before
After
Before
After
Before
AfterTherma-Tru Service Pricing in Ben Lomond
Therma-Tru work in Ben Lomond is priced honestly based on what’s actually wrong, not by a flat rate that makes a quick repair look like a door replacement. Here’s what common repair scopes run:
| Service | Typical Range |
|---|---|
| Roof repair (often needed before or alongside door work) | $400 – $1,800 |
| Window replacement (common when entries are being rebuilt) | $4,500 – $15,000 |
| Impact window installation | $8,000 – $25,000 |
What actually drives the price is simple: whether you need a sill, a slab, or a full frame replacement. A rotted sill on a Classic-Craft is a repair; a warped slab with cracked skin is a replacement. Our free estimate includes an on-site inspection and a written line-item quote so you know exactly what you’re paying for before we start. Call (866) 472-1908 to schedule yours.
Serving Ben Lomond, CA — Our Local Coverage Area
We’re based in the Ben Lomond 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 Ben Lomond
It’s usually the conditions around the door. In Ben Lomond, redwood duff and fog drip collect at the threshold and wick moisture into the bottom rail, causing it to swell enough to stick. The house isn’t moving; the door rail is absorbing water it shouldn’t. Sometimes a drainage-friendly threshold detail and an OEM sweep fixes it. If the rail has already delaminated, the slab needs replacement. Call (866) 472-1908 and we’ll tell you which one it is.
Yes. On a steep lot with heavy canopy, the critical detail is keeping duff and fog drip from pooling at the threshold. We use a drainage-friendly threshold, proper overhang trim, and sealed sill pans so debris sheds instead of collecting. It’s standard practice for us on any Brookdale Therma-Tru service or Ben Lomond install, and it’s the difference between a door that lasts and one that rots at the bottom rail in five years.
Often, yes. If the frame is square and structurally sound, we can order a replacement slab to fit and install it with OEM hinges, sweeps, and weatherstrip. On older cabins where the frame has settled or twisted, we’ll tell you honestly whether you’re better off with a full frame replacement. No guesswork, just the realistic scope for your opening.
It can, depending on the model and glass. A Therma-Tru fiberglass slab with H3-rated glazing and a fire-rated frame contributes to the fire-hardened envelope that Santa Cruz County looks for during defensible-space reviews. We can spec the right model for your hillside exposure and coordinate with the rest of the exterior work to keep your whole entry consistent.
Here’s the honest rule we use on every Ben Lomond job: if the failure is in the sill, sweep, weatherstrip, or a bottom rail that hasn’t delaminated, it’s a repair. If the slab is warped, the skin is cracked through, or the frame has rot in the corners, you’re looking at a full replacement. We’ll show you what we’re seeing and recommend the cheaper fix when it’s actually viable. Call (866) 472-1908 for a free estimate and we’ll walk it with you.
Service Areas Near Ben Lomond
Our Therma-Tru service covers Ben Lomond and the surrounding mountain communities. We handle Therma-Tru work in Bonny Doon, Felton, and the broader Santa Cruz Mountains, and we coordinate with our Ben Lomond service area coverage for full-scope remodeling. If you’re up the road in Bonny Doon, see our Therma-Tru service in Bonny Doon page. For the Felton side, check Therma-Tru service in Felton.
Book Your Therma-Tru Service in Ben Lomond Today
If your Therma-Tru door is sticking, swelling, or showing rot at the bottom rail, don’t wait for the next wet season to find the weak spot. Call (866) 472-1908 to schedule a free estimate. We’ll show you what’s failing, what it costs to fix, and whether you need a repair or a replacement. Good construction doesn’t announce itself – it just works, year after year.
Written by Noel Carvalho, Owner at San Bruno Construction, serving Ben Lomond and the Santa Cruz Mountains with full-scope residential construction.