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Therma-Tru Construction in Boulder Creek, CA | Daly City Construction
We install, repair, and replace Therma-Tru entry doors, patio door systems, and storm doors throughout Boulder Creek, including the burn-scar rebuild zones where fire-resistant detailing has become mandatory. If your fiberglass door is delaminating along the bottom rail after last winter’s rain, or your slab sticks in a cabin that racks seasonally on post-and-pier footings, that’s the kind of work we do every week. Call (866) 505-5254 for a free estimate.
You should know what we are and what we aren’t. Daly City Construction is an independent Therma-Tru service provider. We’re not manufacturer-affiliated, not a factory direct outlet, and not an authorized dealer. What we bring is practical experience fitting Therma-Tru fiberglass and steel units into older mountain homes where openings are rarely square and winter weather is unforgiving. Our Boulder Creek service area includes the steep lots and narrow drives along Bear Creek Road, Big Basin Way, and the side roads off Highway 9 where normal delivery trucks don’t fit. We’ve learned to work around that.
Why Boulder Creek Residents Choose Us for Therma-Tru Service
Therma-Tru doors are built well, but they don’t fail the same way everywhere. In Boulder Creek, failure usually starts at the bottom rail where wind-driven rain finds a worn sweep, or at the hinge side where the rough opening was never flashed when the cabin went up in the 1950s. We look for these things before we quote a repair, because replacing weatherstrip on a door that’s wicking water through a rotted sill is a waste of your money.
Noel Cabrera runs our crew, and he grew up around Daly City’s postwar tract homes, learning framing the slow way before training in construction technology at City College of San Francisco. The lessons from those fog-weathered houses carry over to Boulder Creek: proper flashing, moisture barriers, and structural attention matter more than whatever finish goes on top. That’s why customers looking for our General Contractor in Boulder Creek get the same disciplined approach. When we fit a Therma-Tru unit into an out-of-square cabin opening, we shim, flash, and seal it so the door doesn’t fight the house for the next ten years. Tell me what the house needs, not what you think it needs – then we’ll figure out the right fix.
We also carry genuine Therma-Tru OEM sills, sweeps, weatherstrip, and hinge hardware on the truck. That’s rare for an independent shop, but it means half our Boulder Creek repair calls — and Therma-Tru in Felton jobs we take on — finish in a single visit.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Boulder Creek
- Delaminating fiberglass skins on Fiber-Classic and Smooth-Star doors. Heavy winter rain off the Pacific doesn’t just wet the face of a door – it drives under a failing sweep and soaks into the bottom rail. Once water sits inside the fiberglass, the skin separates. We see it regularly on homes where the original sill pan was never installed correctly, which describes a lot of Boulder Creek cabins built before modern flashing practices.
- Faded and peeling Classic-Craft stain finishes on south and west exposures. Post-CZU tree removal opened up gaps in the canopy that used to shade the west side of many homes. UV now hits entrance doors all afternoon. The wood-grain stain on a Classic-Craft door will fail faster on a fully exposed Boulder Creek hillside than it would in an oak-shaded lot. Refinishing only works if the underlying fiberglass is still sound.
- Swelling and water wicking at steel edges or hinge-side frames. Older installs where the rough opening lacked proper flashing and drainage weeps eventually draw water into the jamb. In winter, the wood around the threshold stays wet for weeks at a time. The door starts to stick, then bind. By the time a lockset won’t align, the frame’s usually in trouble too.
- Sticking slabs and misaligned multi-point locks on post-and-pier foundations. Mountain cabins shift. A ridge beam dries out, a skirting settles, and suddenly the deadbolt on a Therma-Tru multi-point lockset doesn’t want to engage. Seasonal racking is a normal thing in Boulder Creek. The fix isn’t forcing the door – it’s re-setting the slab within the frame and adjusting the hinges so the door functions even when the cabin moves an eighth of an inch in a hard rain year.
- Rusted-through thresholds at the sill plate. In an environment with regular rainfall and litterfall accumulating at the base of exterior doors, a steel threshold without a proper sill pan will corrode. Often what looks like a bad door slab is actually a compromised sill that’s been feeding water upward for years. We check this first.
Therma-Tru Service in Boulder Creek: What Local Conditions Mean for Your Equipment
Boulder Creek’s CZU burn-scar rebuilds changed what door replacement means in this town. A lot of the homes being rebuilt or repaired along Bear Creek Road, Two Bar Road, and the ridge lines off Highway 236 are under Santa Cruz County and CAL FIRE defensible-space rules. That means new entry and patio door assemblies often need fire-resistant detailing: rated frame materials, proper setbacks, and in some cases, specific glazing treatment on sidelites. A standard Bay Area door swap never has to consider what a 40 mph wind event does to an ember that lands at the base of a Therma-Tru unit. Up here, that’s part of the plan. Our crew replaced a delaminated Fiber-Classic entry door on a cabin off Bear Creek Road where the narrow driveway forced us to hand-carry the new unit 60 yards up from the road. We found the original rough opening had no sill pan at all – the bottom rail had soaked for years. We rebuilt the opening with proper flashing, installed a new OEM sill and sweep, and finished with a fire-rated assembly so the county would sign off on the rebuild.
Therma-Tru Models & Products We Service in Boulder Creek
We work on the full Therma-Tru range that shows up in mountain homes: the Fiber-Classic collection entry doors, Smooth-Star fiberglass entry and patio doors, Classic-Craft American Style series, and Signet fiberglass entry systems. Parts sourcing is where we diverge from the handyman-with-a-caulk-gun approach. For any repair, we use genuine Therma-Tru OEM sills, sweeps, weatherstrip, and hinge/lockset hardware wherever the slab and frame remain sound. Why? Because those parts match the extrusion profiles exactly, and a generic big-box sweep on a Therma-Tru door will wear unevenly and leak within 18 months. If the fiberglass skin is delaminated or the frame’s rotted at the threshold, we’ll tell you the truth: replacement is the only repair that won’t fail again next winter.
Since Therma-Tru sales & service is something we handle across the region, we keep the common replacement sills and weatherstrip kits stocked locally for faster Boulder Creek turnaround. You won’t wait two weeks for a sweep to ship from Ohio.
See the difference
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AfterTherma-Tru Service Pricing in Boulder Creek
Pricing depends on whether we’re repairing a component or replacing a unit, and on what the opening itself needs. Here’s what full replacement work typically runs for door and window scopes that overlap with Therma-Tru entry systems:
| Project Scope | Typical Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
Repair work – new OEM weatherstrip, sweep, hinge adjustment, or sill replacement – runs considerably less. What drives cost up in Boulder Creek is access: if we have to hand-carry a door unit up a steep driveway, or rebuild a rough opening that was never flashed, that labor is real. Every estimate we give is free and line-itemed, so you can see exactly where your dollars go before you commit. Call (866) 505-5254 to schedule one.
Serving Boulder Creek, CA — Our Local Coverage Area
We’re based in the Boulder Creek 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 Boulder Creek
Yes, and this is the rule, not the exception, in Boulder Creek. Older cabins on post-and-pier foundations shift, and the rough opening that was square in 1957 isn’t square now. We shim, re-flash, and re-set the door so it operates cleanly even when the cabin moves seasonally. If the framing itself is badly out of plumb, we may recommend minor structural correction before setting the new unit.
In the burn-scar areas and on new rebuilds, yes. Santa Cruz County and CAL FIRE require fire-resistant construction details and defensible-space clearance. That affects framing materials, door and window rating choices, and how the threshold is sealed against ember penetration. Call (866) 505-5254 and we’ll scope which requirements apply to your specific property before you order anything.
Small equipment, hand-carrying, and patience. Many Boulder Creek drives won’t accommodate a flatbed or even a standard box truck. We stage materials down the hill, walk them up, and stage the installation around whatever access the site actually has. This is a normal part of working along the Highway 9 corridor, and it’s why we scope every job — including Therma-Tru repair in Lompico — in person before quoting.
Water has gotten into the rail, almost always through a failed sweep or an improper sill pan. The fiberglass skin then delaminates. Once this happens, the damage is not reversible – the door needs replacement, not patching. The real fix also means installing an OEM sill and proper flashing so the replacement doesn’t soak the same way.
In most cases, yes. We match the slab profile and finish grade to the existing sidelite assemblies, and we’ll use OEM hinge and hardware positioning so the door hangs correctly within the old frame if the frame is still structurally sound. Call (866) 505-5254 for an exact recommendation – estimates are free.
Service Areas Near Boulder Creek
Beyond Boulder Creek, we service Therma-Tru service in Seven Trees and Therma-Tru service in Brookdale, plus the surrounding San Lorenzo Valley communities along Highway 9. If you’re on the other side of the hill, we also cover Daly City, Broadmoor, Colma, and Visitacion Valley.
Book Your Therma-Tru Service in Boulder Creek Today
If your Therma-Tru door is failing, or you’re planning a rebuild with fire-resistant requirements, we’ll send someone out to look at the actual opening, the actual weather patterns your house faces, and the access constraints on your lot. We serve Boulder Creek with free estimates and honest recommendations. Call (866) 505-5254 to schedule yours.
Written by Noel Cabrera, Owner at Daly City Construction, serving Boulder Creek and the San Lorenzo Valley since he put down his hammer here and never looked back.