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Therma-Tru Construction in Boulder Creek, CA | Iron Beam Contractors
We provide independent Therma-Tru door installation and repair across Boulder Creek, and the thing that separates our work here is simple: we plan every job around redwood-canopy damp, WUI ember exposure, and driveways that a standard delivery truck can’t always climb. We’re not authorized by Therma-Tru, and we won’t pretend otherwise. What we are is a general contractor that has re-hung, re-flashed, and replaced enough Therma-Tru slabs on pier-and-post foundations to know exactly where they fail in this climate. Call (833) 756-5936 for a free estimate.
Why Boulder Creek Residents Choose Us for Therma-Tru Service
We’ve installed Therma-Tru Fiber-Classic, Smooth-Star, and Classic-Craft entry systems in Boulder Creek long enough to know the brand’s strengths and its weak points. More importantly, we know how those weak points show up here, where a west-facing door off Bear Creek Road weathers differently than the same door in a Sunnyvale tract. Nolan Driscoll, our owner, learned structural work through the Building and Construction Technology program at Santiago Canyon College and spent two decades framing and reinforcing everything from single-family additions to commercial tenant improvements. He built Iron Beam Contractors on one principle: tell the homeowner exactly what’s in the wall before you open it, not after. That’s how we approach every Therma-Tru job, whether it’s a slab replacement or a full entry system re-hang. You can also see the full scope of our Therma-Tru sales & service work.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Boulder Creek
- Bottom rail and sill rot from constant shade damp. Redwood canopy keeps ground-level moisture high in Boulder Creek, and Therma-Tru slabs with particleboard cores wick that moisture upward. The bottom rail swells and delaminates while the top of the slab still looks new. We replace the sill, re-flash the rough opening, and set the new slab on a pan flashing that actually sheds water.
- UV breakdown on west- and southwest-facing entries. Exposed mountain lots get intense dry-season sun, and factory finishes on Therma-Tru fiberglass skins fade and chalk years before the slab itself fails. We re-prep and re-finish when the skin is sound, and we’re straight with you when a full replacement makes more sense.
- Ember gaps that fail a Chapter 7A envelope review. Builder-grade weatherstrip, worn sweeps, and unsealed jambs pass in a flatland suburb. In Boulder Creek, those same gaps are where an ember finds its way in during a Red Flag event. We seal jamb lines and install OEM sweeps rated for the exposure they’ll actually face.
- Out-of-square openings on pier-and-post foundations. Older redwood cabins and mountain homes in Boulder Creek sit on hand-built piers and retained cut-banks. Prehung Therma-Tru units rack when the foundation moves, so doors stick seasonally and hinges wear fast. We re-square the rough opening before we hang anything.
- Openings that were never flashed at all. We see this on older cabins throughout the 95006 ZIP. The original door went in decades ago with no pan flashing, no jamb flashing, and nothing but caulk. We strip it back to the rough opening and rebuild the flashing detail before the new Therma-Tru unit goes in.
Therma-Tru Service in Boulder Creek: What Local Conditions Mean for Your Equipment
Boulder Creek lots often sit behind steep private driveways and narrow one-lane creek bridges that standard delivery trucks and concrete mixers can’t cross, and winter storms can cut access altogether. That means a replacement Therma-Tru slab or a new patio door with glass lites has to arrive on a smaller truck, staged and inspected for freight damage before we ever touch the rough opening. We schedule smaller loads weeks ahead, and we build around the road and weather windows that compress the build season here. Our crew has hauled doors up drives where the delivery driver refused to back past the first switchback. If your home sits behind a one-lane bridge over Boulder Creek itself, we already know that truck route won’t work, and we plan for it from day one. On a redwood-sided cabin off Bear Creek Road, our crew found a west-facing Fiber-Classic entry slab delaminating along the bottom rail and the jamb unsealed against ember intrusion, with the prehung unit racked out of square by a pier-and-post foundation. We had the replacement slab hauled up the narrow private drive on a smaller truck, stabilized and re-squared the rough opening, set a pan flashing and new sill, sealed the jamb line to WUI standards, and hung the new Therma-Tru slab with OEM weatherstrip. The homeowner finally had an entry that closes flush in winter rain and reads as part of an ember-resistant envelope.
Therma-Tru Models & Products We Service in Boulder Creek
We service the full residential Therma-Tru line that shows up in Boulder Creek homes: Fiber-Classic entry doors, Smooth-Star fiberglass doors, the Classic-Craft collection, and Therma-Tru patio and sliding glass door systems. When the slab and frame are sound, we use Therma-Tru OEM replacement sills, sweeps, weatherstrip, and hardware, because the door’s weather and fire performance lives in those seals. We go aftermarket only when OEM is unavailable and we tell you before we do it. When a bottom rail is swollen or delaminated, we’ll tell you honestly that no seal kit saves it, and that re-flashing the rough opening matters more than which door you pick. We also tie Therma-Tru work into the rest of the envelope, including window replacement and roof systems, so the door isn’t the only thing holding the line against weather and embers. If your home is in the broader Boulder Creek service area, we can assess the full entry-to-roof sequence.
See the difference
Before
After
Before
After
Before
AfterTherma-Tru Service Pricing in Boulder Creek
| Service | Price Range |
|---|---|
| Window Replacement | $4500 – $15000 |
| Impact Window Installation | $8000 – $25000 |
| Roof Replacement | $8000 – $20000 |
| Roof Repair | $400 – $1800 |
A free estimate means we come out, look at the door, the rough opening, the driveway, and the exposure, and we give you a written line-item quote. Call (833) 756-5936 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
Are you an authorized Therma-Tru dealer or installer?
No. We’re an independent general contractor. We buy and install Therma-Tru products, and we know the brand’s installation requirements and failure points well, but we are not authorized, sponsored, or warranted by Therma-Tru. If you want a contractor who will tell you when a Therma-Tru product is the right call and when it isn’t, call (833) 756-5936.
Do you use OEM or aftermarket parts on Therma-Tru doors?
We use Therma-Tru OEM sills, sweeps, weatherstrip, and hardware whenever the slab and frame are sound. OEM parts are what the door’s weather and ember performance was designed around. Aftermarket parts only go on when OEM is unavailable, and we tell you before we install them.
How long does a Therma-Tru door replacement take in Boulder Creek?
A straightforward slab replacement usually takes one day on site. A full rough-opening rebuild with re-flashing, re-squaring, and new jamb sealing can run two to three days. Add time if we’re replacing a patio door or if your driveway requires staging materials on a smaller truck and shuttling them up. We’ll give you a written schedule before work starts.
Which Therma-Tru models do you service?
Fiber-Classic, Smooth-Star, Classic-Craft, and Therma-Tru patio and sliding glass door systems. If you have a Therma-Tru product that isn’t in that list, call us anyway. We’ll tell you if we can service it or if you need a specialist.
Do I need to address my roof and windows if I’m replacing exterior doors for wildfire hardening?
Yes, usually. A hardened door with an unsealed jamb or a builder-grade window next to it is still a weak envelope. In Boulder Creek, CAL FIRE’s Chapter 7A rules look at the whole fire exposure, not one door. We scope roof, window, and door work together so the envelope passes as a system. Call (833) 756-5936 for an exact quote, and we’ll walk the whole exterior with you.
Service Areas Near Boulder Creek
We also cover nearby mountain and foothill communities for Therma-Tru work, including Therma-Tru service in Monte Sereno and Therma-Tru service in Alum Rock. If your home sits in one of the surrounding Santa Cruz Mountain communities, call us and we’ll let you know if we can get a truck to your drive.
Book Your Therma-Tru Service in Boulder Creek Today
If your Therma-Tru door is sticking, delaminating, or leaking air, call (833) 756-5936. We’ll schedule a free estimate, assess the door and the opening, and give you a written quote. If the structure makes sense on paper, it’ll hold in the field. If it doesn’t, we fix it before we touch a beam.
Written by Nolan Driscoll, Owner at Iron Beam Contractors, serving Boulder Creek and the Santa Cruz Mountains.