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 Santa Cruz, CA | Milpitas Construction
We provide independent Therma-Tru door installation, retrofit, and repair across Santa Cruz, from the Westside Victorians to the Seabright flats. What makes our Therma-Tru work different here is simple: we frame and flash these doors for fog-belt moisture and storm saturation, not for an inland house with nicer weather. If your entry door is binding, wicking water, or rusting at the hinges, call (877) 752-4194 for a free estimate. Ken Stafford runs our crew, and we’ve been setting doors in salt air long enough to know what actually fails first.
Why Santa Cruz Residents Choose Us for Therma-Tru Service
We’re a full-scope Santa Cruz General Contractor, which means the same crew that sets your Therma-Tru entry door can also handle the window replacement, roof repair, or home addition you’ve been putting off. We spec materials by name, so you know exactly what’s going into your home. When we install a Therma-Tru Smooth-Star or Classic-Craft door in Santa Cruz, we use OEM or equivalent-grade sills, sweeps, weatherstrip, and hinge hardware, not the universal parts that fail after one rainy season. Ken Stafford got his construction technology training at Evergreen Valley College and has spent two-plus decades around the Bay Area’s soil shifts and moisture quirks. Build it right the first time – the Bay Area doesn’t give you a free pass on shortcuts.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Santa Cruz
- Bottom rail and sill rot on fog-belt entries. Fiberglass doesn’t rot, but the bottom rail assembly and the wood sill underneath it sure do. On north-facing and shade-covered doors in Santa Cruz, fog keeps the threshold damp year-round, and the door never gets a real drying cycle. We pull the old sill, inspect the rough opening, and rebuild the detail so water sheds instead of wicks.
- Seized hinges and corroded strike plates. Salt-laden marine air on west- and ocean-facing doors eats hinges, strike plates, and threshold screws faster than the fiberglass slab itself fails. This is common in Pleasure Point and the lower Westside. We swap in corrosion-resistant hardware and re-hang the door so it latches cleanly.
- Soft delaminating jamb legs on beach bungalows. In Seabright and Twin Lakes, winter storm flooding and splash-back saturate the threshold and climb into the wood jamb legs and brickmold. By the time you notice the door sticking, the jamb is often already soft. We reframe and re-flash the opening rather than hanging a new door in a compromised frame.
- Binding and latch misalignment in older homes. Westside Victorian and Craftsman frames have been racking for decades. A prehung Therma-Tru unit won’t sit true unless the rough opening gets squared up first. We reframe, shim, and set the door so it opens with one hand, not a shoulder.
- Threshold and sweep failure from storm-driven rain. The seals and thresholds are what fail first on this coast. When the bottom rail is still sound, we replace the sill, sweep, and weatherstrip rather than the whole door. When the bottom rail is rotted through, we recommend replacement and say so plainly.
Therma-Tru Service in Santa Cruz: What Local Conditions Mean for Your Door
Because Santa Cruz sits in the fog belt on the northern edge of Monterey Bay, doors on the Westside and in Pleasure Point take constant humid marine air with little summer drying, which is why our Therma-Tru repair in Capitola follows the same moisture-proofing protocols. Therma-Tru bottom rails and wood sills rot from the threshold up rather than from sun exposure – which is the opposite failure pattern you’d see in, say, Scotts Valley or Felton. Those inland doors bake and crack. Coastal Santa Cruz doors stay damp and delaminate. Add in the low-lying Seabright and Twin Lakes flats, where winter storm water saturates the same sill detail, and you get a door that fails from the ground up while the slab still looks fine. That’s why we flash, slope, and seal every rough opening as if it’s going to stand in standing water – because in parts of Santa Cruz, it will. On a Seabright bungalow a few blocks off the water, our crew pulled a Therma-Tru Smooth-Star whose bottom rail had gone soft and whose hinges were seized from salt air and splash-back at the threshold. We reframed and re-flashed the rough opening, set a new prehung unit on a properly sloped sill pan, and swapped in corrosion-resistant hinges and threshold hardware so the door sheds storm water instead of wicking it. The homeowner got a door that latches cleanly and a sill detail that should outlast the one it replaced.
Therma-Tru Models & Products We Service in Santa Cruz
We work on the full Therma-Tru fiberglass and steel lineup: Smooth-Star entry doors, Classic-Craft fiberglass entry doors, Fiber-Classic entry doors, and Therma-Tru patio and sliding glass door systems. We also handle sidelites and transoms. On parts, our stance is simple: we use Therma-Tru OEM or equivalent-grade sills, sweeps, weatherstrip, and hinge hardware, because in Santa Cruz the seals and thresholds are what actually fail first. We stock common sill and sweep profiles for faster turnaround on the fog-belt and beach-flat jobs, and our Therma-Tru service in Pasatiempo covers anything else you need. We are an independent contractor – not affiliated with, authorized by, or endorsed by Therma-Tru – but we install and service their doors every week.
See the difference
Before
After
Before
After
Before
AfterTherma-Tru Service Pricing in Santa Cruz
Most of what we do around a Therma-Tru door falls into one of three buckets: repairing the surrounding frame, replacing the door assembly, or tying the door into a larger exterior project. Here are the line-item ranges we quote:
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Roof Repair | $400 – $1,800 |
| Home Addition | $45,000 – $130,000 |
What drives the cost on a Therma-Tru door job in Santa Cruz is the condition of the rough opening. A clean swap onto a sound frame is one thing. A Seabright bungalow with a saturated sill and soft jamb legs is reframing work, and we’d rather tell you that before we start than hand you a change order mid-project. Every estimate we give is free, written, and line-item so you know what you’re paying for. Call (877) 752-4194 for an exact quote.
Serving Santa Cruz, CA — Our Local Coverage Area
We’re based in the Santa Cruz area and know this community well, including our Therma-Tru service in Mount Hermon. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Santa Cruz
The fiberglass slab itself won’t rot, but the bottom rail assembly and the wood sill underneath it will, especially in Santa Cruz where fog keeps north- and shade-facing thresholds damp year-round and storm splash-back saturates the same detail in Seabright and Twin Lakes. We replace what’s actually failed – sill, sweep, or rail – rather than quoting a whole door when only the threshold is bad. Call (877) 752-4194 and we’ll tell you which one you’re looking at.
In most cases, swapping an exterior door in kind doesn’t require a separate coastal development permit, but Santa Cruz’s Coastal Commission jurisdiction changes the math if you’re altering the opening size, adding a sidelite, or working on a structure in a creek or wetland setback. We pull permits when they’re required and navigate the city and county coastal development process so the paperwork doesn’t stall your project. Call
Yes. Salt-laden marine air on west- and ocean-facing doors in Santa Cruz corrodes hinges, strike plates, and threshold screws long before the fiberglass slab fails. We replace the hardware with corrosion-resistant parts, re-hang the door, and you’re back in business for a fraction of the cost of a new unit. Call
It will, but only if the rough opening is squared up first. Westside frames have been racking for decades, and a prehung unit won’t sit true in an out-of-square opening. We reframe, shim, and set the door so it opens cleanly – and we’ll say so upfront if the frame needs more work than the door itself. Call
A door swap onto a sound frame is one price. A Seabright bungalow with a saturated sill and soft jamb legs is a reframing job, and that runs higher. Window Replacement along the same exterior runs $4,500 – $15,000, Roof Repair $400 – $1,800, and a Home Addition $45,000 – $130,000. Call
If you’re outside Santa Cruz proper, we cover the surrounding communities too. For Therma-Tru service in Brisbane, see our Brisbane page. For Therma-Tru service in Twin Lakes, see our Twin Lakes page. We also handle jobs in Marin City, San Juan Bautista, Castroville, Prunedale, Silver Lakes, and Piñon Hills. Our full coverage area is on the Santa Cruz service area page, and everything we offer sits under our Therma-Tru sales & service umbrella. If your Therma-Tru door is sticking, wicking water, or rusting at the hinges, don’t wait for the next atmospheric river. Call (877) 752-4194 and Ken or a member of our crew will come out, assess the opening, and hand you a written estimate. Free, no pressure, no guesswork. Written by Ken Stafford, Owner at Milpitas Construction, serving Santa Cruz with Therma-Tru door installation, retrofit, and repair.Service Areas Near Santa Cruz
Book Your Therma-Tru Service in Santa Cruz Today
Request a Free Estimate in Santa Cruz
Tell us what you need — Milpitas Construction responds fast. No obligation.