







Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Dvele Home Additions & ADU: The San Jose Owner’s Guide
We install and service Dvele home additions and accessory dwelling units across San Jose, with full projects typically running $53,100 – $153,400 depending on square footage, site prep, and finish level. Most Dvele owners call us when a panel or mechanical component starts underperforming, not because the whole structure failed. The usual discovery is a door that won’t seal, a moisture reading that climbs after rain, or a utility room component that stopped communicating with the main panel. Whether you need a single component matched and replaced or a full addition integrated with an existing Dvele home, we write the scope and price before work begins.
Which Dvele Models This Applies To

Dvele builds their homes and ADUs as panelized, factory-fabricated systems. That means the parts are not off-the-shelf lumberyard stock. Wall panels, roof cassettes, and mechanical cores are manufactured to a specific series, and compatibility is not a guess. If you own a Dvele home or ADU in San Jose, the fastest way for us to match a part is the panel label, usually printed on the interior face of an exterior wall near a corner or inside the utility chase. We look for the series number, build date, and panel ID. Dvele’s mechanical cores also carry their own data plates, which we cross-reference before ordering anything.
For most Dvele owners, the OEM part is the smart call. Dvele’s panels and mechanical components are engineered to fit their own framing and HVAC routing, and an aftermarket equivalent can throw off a door reveal by a quarter inch or leave a duct connection fighting the cassette. Where we do use non-OEM materials, it is only for finishes and hardware: flooring, tile, fixtures, and trim from brands like KraftMaid, Cambria, and Silestone. Those don’t affect structural or mechanical integrity. Anything load-bearing or tied to the mechanical core stays OEM.
Styles & brands we work with







Signs Your Dvele Home Additions & ADU Is Failing
- Door or window that suddenly won’t square up. Dvele panels shift with foundation movement, same as any framed wall, but a panel that’s pulling away from its connection point will show as a door that rubs on the jamb or a window that won’t latch. This is usually a failed connection or settling, not the door itself.
- Moisture stains or musty smell in a corner. Factory panel joints rely on sealed connections. Once a seal fails, San Jose’s winter rains find the gap. We drill a small test hole, take a moisture reading, and map the water path before opening anything up.
- Mechanical core throwing error codes or short cycling. Dvele’s mechanical cores bundle HVAC, ventilation, and water heating. If the system cycles off early or throws a fault, it’s often a sensor or control board, not the compressor. We read the data plate and match the board to the series.
- Squeaking or soft spots in the floor cassette. Dvele floor cassettes are built tight, but water intrusion or a failed adhesive layer will show as flex or noise. Ignoring it lets the substrate rot, which turns a repair into a replacement.
- Visible gaps at panel seams. Panelized construction should show clean, tight seams. Gaps that open or caulk that keeps splitting means movement. That’s a structural flag, not a caulk problem.
See the difference
Before
After
Before
After
Before
AfterReplacement Cost & What’s Included

In San Jose, a full Dvele home addition or ADU runs $53,100 – $153,400. A single component repair, like a mechanical core board or a panel re-seal, lands lower. The range depends on square footage, whether we’re tying into an existing Dvele structure or building standalone, site access, and finish level. We give you a written price before any work starts, and that price does not move at the door. The quote breaks out parts, labor, permits, and any subcontractor work, so you can see exactly what you’re paying for.
Every project carries the 365-Day Done Right Promise. If something we installed fails within one year, we come back and correct it at no charge. That’s in writing, in your hand, before the crew leaves. No verbal assurances, no follow-up phone calls to chase.
DIY or Call Us?
For anything inside the mechanical core, electrical connections, or panel seams, call us. Dvele’s systems operate under load, and a mis-wired control board or an unsealed panel joint can cause water damage, mold, or worse. Panel work is also not a weekend project. These components weigh hundreds of pounds and require hoisting, not muscle.
What you can do safely: keep an eye on seam caulking, check for visible water stains after heavy rain, and note any error codes before calling. That information saves us a diagnostic visit and gets the right part ordered the first time. For a free estimate on any Dvele addition or ADU work in San Jose, call us at (669) 272-2637.
FAQs

A Dvele structure should last as long as any properly built home in San Jose, meaning decades for the structure itself. The components that fail first are the mechanical core parts, sensors, and control boards, which typically last 8 – 15 years depending on usage and local power quality. We see occasional board failures on the mechanical side, but the envelope holds up well when seals are maintained.
Sometimes. Control boards and sensors can often be repaired or re-flashed, and panel seams can be re-sealed if the underlying substrate is sound. If the panel itself is delaminating or the cassette is water-damaged, replacement is the honest fix. We’ll tell you which one you need before we order anything, and we’ll write it in the quote.
A mechanical core board swap is usually done in a day. A panel re-seal takes two to three days with dry time. A full ADU or home addition in San Jose runs 3 – 8 months depending on scope, permits, and site conditions. We give you a written schedule with the quote, and we hold ourselves to it.
We keep common Dvele-compatible components on our trucks: boards, sensors, seal materials, and fasteners. For larger parts like wall panels or cassettes, we order direct from the manufacturer with a confirmed lead time before we schedule the job. You’ll know the timeline before any work starts. Call (669) 272-2637 for a free estimate, and we’ll tell you what’s on hand and what needs to be ordered.
No. The written price is the price. If we find hidden damage behind a panel or inside a mechanical core, we stop, show you what we found, and give you a written change order before any additional work proceeds. That’s The Garrison Standard in action, and it’s how Curtis Lane has run Bradford Remodeling Co San Jose from day one. Straight number, written scope, done when we said done.
Written by Curtis Lane, Owner, Bradford Remodeling Co at Bradford Remodeling Co San Jose, serving San Jose and nearby areas.


