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Therma-Tru Construction in Felton, CA | Workshop Contractors
We install, fit, and re-seal Therma-Tru entry and patio doors across Felton, and we also handle Therma-Tru repair in Mount Hermon — we’ve been doing it long enough to know that a door that fails here usually fails because of the lot, not the slab. Felton’s steep redwood-shaded parcels, pier-and-post foundations, and wet fog-belt winters put stress on every Therma-Tru unit in ways a flat, sunny subdivision never will. That’s the difference: we don’t just hang the door, we build the opening to survive San Lorenzo Valley conditions. Call (844) 384-3361 to schedule your free estimate.
Why Felton Residents Choose Us for Therma-Tru Service
Noel Figueroa grew up around tradesmen who framed half the houses on his street, and he’s carried that same standard into Workshop Contractors: square framing, flashed openings, and doors that close clean the first time. Our crew has installed and serviced Therma-Tru Fiber-Classic, Smooth-Star, and Classic-Craft units on Felton’s early-1900s redwood cabins and 1950s-70s ranch homes for years. We know which sill profiles actually shed water on a north-facing entry, and which sweeps survive a winter under redwood duff.
We’re an independent contractor. That means we source Therma-Tru OEM or direct-fit replacement slabs, sills, sweeps, and weatherstrip where the frame is sound, and we tell you honestly when rebuilding the rough opening is the only fix that won’t come back next season. Our background spans full exterior scope: we install Therma-Tru sales & service alongside window replacement, impact window installation, and complete kitchen remodels, so one contract covers the door and everything around it. No finger-pointing between three subs when the threshold meets the tile and the jamb meets the siding.
Styles & brands we work with
Common Therma-Tru Construction Problems We Solve in Felton
- Bottom rails and sills wicking fog-belt moisture. The fiberglass slab survives it fine; the wood jamb legs and threshold behind the trim don’t. In Felton’s redwood understory, shaded north-facing entries stay wet from November through April, and the rot starts inside the opening where you can’t see it until the door drags.
- Frames going out of square on pier-and-post floors. A lot of Felton’s older cabins and ranch homes sit on pier-and-post foundations that settle unevenly. The door slab stays true, but the frame racks, the strike side gaps open, and the unit starts wind-whistling during winter storms.
- Weatherstrip and corner seals failing early. Redwood duff holds moisture against the base of the door year-round, and sweeps that would last a decade in Scotts Valley die in three seasons here. Off-brand replacements fail faster. We use Therma-Tru OEM or direct-fit parts because this climate weeds out the cheap ones fast.
- Builder-grade patio doors hitting first replacement cycle. Those original Therma-Tru sliding patio units on 1950s-70s Felton ranch homes were never flashed to modern code. By now the frames are often shimmed into header conditions that were never permitted, and the rough opening has years of hidden water intrusion behind it.
- Thresholds settling independently of the main foundation. On steep, tree-rooted lots, the stoop and threshold pour or pad moves separately from the house. The slab itself can be fine, but the door binds or drags because the entry has moved. You can’t hinge-adjust your way out of that.
Therma-Tru Service in Felton: What Local Conditions Mean for Your Equipment
Here’s something most Felton homeowners learn the hard way: a redwood over 24 inches in diameter anywhere near a build site can require a Santa Cruz County tree-removal permit, and it can trigger a geologist’s report and an erosion-control plan before the county will even look at the rest of your application. That means door and opening work on an enlarged entry or an addition near Felton’s redwood belt often gets sequenced around that environmental review first. We’ve done enough of these to build the timeline around the county’s process instead of pretending it doesn’t exist. A parcel in Scotts Valley or Ben Lomond rarely faces the same trigger, because the trees and the slope patterns are different. If you’re planning a wider door, a new patio slider, or any opening change on a Felton lot with mature trees near the house, call (844) 384-3361 before you start pulling trim. We’ll tell you what’s likely to need review, and what order to do the work in so the county, the door, and the weather all cooperate.
Therma-Tru Models & Products We Service in Felton
Our crews work on the full Therma-Tru residential lineup we see across Felton’s housing stock: Fiber-Classic entry door series, Smooth-Star fiberglass entry doors, Classic-Craft door series, and the builder-grade sliding patio door systems common on 1950s-70s ranch homes. We stock direct-fit replacement slabs, sills, sweeps, corner seals, and weatherstrip for the models most common in the San Lorenzo Valley, because waiting on a parts shipment when your front door won’t close in February is not a Felton winter plan. If the frame is sound, we repair with OEM parts. If the jamb legs or rough opening have gone, we’ll tell you a new prehung unit is the better spend than patching a failing opening every season.
See the difference
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After
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AfterTherma-Tru Service Pricing in Felton
The cost of any Therma-Tru work in Felton comes down to three things: how far the opening has moved, how much rot is hiding behind the trim, and whether a tree or WUI review applies to the job. Full kitchen remodels around door openings run $14,000 to $45,000. Window replacement ranges $4,500 to $15,000. Impact window installation runs $8,000 to $25,000. A free estimate from us means a written line-item quote, not a handshake and a guess.
| Service | Price Range |
|---|---|
| Window Replacement | $4,500 – $15,000 |
| Impact Window Installation | $8,000 – $25,000 |
| Full Kitchen Remodeling | $14,000 – $45,000 |
Build it right the first time. The second time costs twice as much and nobody’s happy about it. Call (844) 384-3361 for your free estimate and we’ll tell you exactly what you’re looking at.
Serving Felton, CA — Our Local Coverage Area
We’re based in the Felton area and know this community well, and we also provide Therma-Tru repair in Lompico and nearby San Lorenzo Valley communities. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs – Therma-Tru Construction in Felton
In almost every case we see in Felton, the fiberglass slab is fine. The failure is the wood jamb legs and threshold behind it, which wick moisture off redwood duff and fog-belt shade until they rot. We’ll open up the trim, assess the rough opening, and either re-set the slab with OEM parts or rebuild the frame if it’s gone too far. Call (844) 384-3361 and we’ll diagnose it before you spend money on parts you don’t need.
It depends on scope. A like-for-like door swap in an existing opening usually doesn’t, but if you’re enlarging the opening or working near a redwood over 24 inches in diameter, Santa Cruz County may require a tree-removal permit and an erosion-control plan before you frame anything. We handle that sequencing for our Felton clients, because the review timeline is the timeline whether you planned for it or not.
Some do. Felton sits inside California’s wildland-urban interface zones, and Cal Fire’s defensible-space and WUI code requirements can apply to door assemblies depending on your parcel and proximity to slope and fuel. We’ll check your specific address’s requirements and tell you which Therma-Tru units meet them. Call (844) 384-3361 and we’ll pull the exact requirements for your lot.
If the rollers, weatherstrip, and handle set are the only problems and the frame is square and flashed correctly, repair makes sense. But most original Therma-Tru builder patio units from that era were installed without modern flashing, and by now the rough opening has decades of hidden water damage. We’ll pull the trim and show you what’s behind it before you decide. For an exact quote, call (844) 384-3361.
Sometimes, but not by adjusting the hinges. If the floor has settled, the frame has racked, and the fix is re-leveling the jamb and possibly shimming the rough opening back to square before you re-hang the slab. We do this on Felton pier-and-post homes all the time, and we’ll tell you if the better move is a new prehung unit in a rebuilt opening. Estimates are free: (844) 384-3361.
Service Areas Near Felton
We serve Felton and the surrounding communities across Santa Cruz County. You’ll find us working in Felton service area and nearby Therma-Tru service in Lexington Hills and Therma-Tru service in Seven Trees, plus Ben Lomond, Mount Hermon, and Boulder Creek.
Book Your Therma-Tru Service in Felton Today
If your Therma-Tru door is dragging, leaking, or whistling, don’t wait for the next winter storm to make it worse. Call (844) 384-3361 and we’ll schedule your free estimate.
Written by Noel Figueroa, Owner & General Contractor at Workshop Contractors, serving Felton since 2008.