Free written scope consultation - allowances, timeline, and change-order rules on paper before a single trade is scheduled
Dvele Construction in Fremont, CA | Rowan Construction Group
We provide independent Dvele construction service across Fremont, from Warm Springs to Mission San Jose. We’re not a Dvele dealer or a manufacturer-authorized shop. What we are is a Fremont contractor that has set Dvele modules on bay fill, cut foundations into hillside clay, and resealed factory seams after Hayward Fault tremors. That local engineering knowledge is the thing that separates our Dvele work from an out-of-area crew guessing at what Fremont requires. Call (470) 298-9650 for a written estimate on any Dvele project.
Why Fremont Residents Choose Us for Dvele Service
Dvele builds factory-precision homes. But the house still sits on Fremont ground, and that ground does not cooperate. Our crews have run Dvele ADU and modular projects across the city’s distinct soil zones: the bay fill around Warm Springs where groundwater sits high and liquefaction is a documented risk, and the expansive clay hillsides above Mission San Jose where a foundation has to move with the earth without cracking the module above it. Most Dvele manuals do not have a chapter on the Alquist-Priolo Fault Zone. We do.
Grant Rowan founded this company in 2007, trained in construction technology at Los Angeles Trade-Technical College, and has spent the better part of two decades on structural remodels where walls come down and load paths get recalculated. He brings that same discipline to Dvele work: measure twice, say it once, show your work. Every Fremont Dvele project gets a written scope, a flat price, and a documented photo record before and after. You know what we found and what we did, in writing, with the invoice.
Common Dvele Construction Problems We Solve in Fremont

- Factory exterior cladding seams separating at corner transitions. Dvele wall panels join at precise seams. When Fremont ground shifts, even a small Hayward Fault tremor or a Niles Canyon wind event can open those seams at the corners. We find this most often on homes exposed to the Diablo wind corridor through Niles Canyon, where wind-driven rain gets forced into any gap. We repair with factory-specified sealants and, where movement is ongoing, add elastomeric joint systems that flex instead of split.
- Roof membrane and joint failures at modular interface points. A Dvele home is built in modules that meet at seams in the roof assembly. Fremont’s seasonal groundwater and morning fog push moisture into those seams faster than in drier inland cities. We see membrane lifting and joint deterioration most on the western flats, where humidity cycles daily. Repair means pulling the affected section, inspecting the substrate, and reinstalling a compatible membrane rather than smearing sealant over rot.
- DveleIQ automation dropping connection to dedicated breaker panels. Dvele’s integrated automation system depends on clean, stable utility voltage. Older Centerville and Irvington grids carry voltage fluctuations that can knock the DveleIQ brain offline. We trace the issue to the panel, verify the connection, and install conditioning where warranted. This is the kind of problem an electrician unfamiliar with Dvele wiring cannot isolate.
- Improperly anchored foundation connections on Dvele ADU projects. Too many Dvele ADUs in Fremont get set by out-of-area crews who assume Bay Area seismic rules are uniform. They are not. Fremont’s Alquist-Priolo maps forbid habitable structures within 50 feet of the fault trace in mapped zones. A crew that bolts a Dvele module to a standard slab on liquefaction-prone bay fill has created a liability, not an ADU. We re-anchor and, where needed, retrofit the foundation connection.
- Drywall cracking at the modular splice after seismic movement. The junction where two Dvele modules meet is the most stressed point in the building envelope during a quake. Even minor movement reads as a hairline crack there first. We repair and reinforce the splice, then repaint to factory finish. If the crack returns, it means the foundation below is moving and we address that, not the paint.
Before
AfterDvele Service in Fremont: What Local Conditions Mean for Your Equipment
Here is the checkable fact that changes Dvele work in Fremont: the city’s Alquist-Priolo Fault Zone maps place a 50-foot no-habitable-structure setback along portions of the Hayward Fault trace. That single regulation eliminates many standard Dvele ADU and addition footprints that would be approved one city over in Union City or Newark. It forces taller, narrower modular configurations and custom foundation work, and it is the reason a Dvele ADU that fits a Hayward lot will not fit a Centerville lot. We have seen lots where the fault trace runs diagonally through the buildable area, cutting the usable footprint by a third. Contractors who do not pull Fremont’s fault maps before quoting either pad the price to cover surprises or walk into a permit denial. We pull the maps first. It changes which Dvele module layout fits, how the crane sets it, and what the foundation has to do. This is why our Fremont Dvele quotes are written, not phone estimates. The number accounts for the fault line under your property.
Dvele Models & Products We Service in Fremont

We work on the DveleIQ 2400 series factory-built home, the Dvele ADU series in one- and two-bedroom configurations, and Dvele’s multi-family modular series used in townhome or duplex layouts. Our standard is factory-specified materials for the building envelope and structural splices, because modular integrity depends on those tolerances. For HVAC, plumbing, and exterior trim, we use approved aftermarket components where local supply and seismic resilience justify the choice. Given what Dvele components cost, we repair and reinforce existing assemblies first. We recommend replacement only when seismic cracking, water intrusion, or automation failure compromises safety or habitability. That is not a sales pitch. It is the same repair-vs-replace calculation we apply to every trade we carry.
Dvele Service Pricing in Fremont
| Dvele Service | Price Range in Fremont |
|---|---|
| Dvele ADU Construction (factory shell + site work) | $90,000-$220,000 |
| Dvele Home Addition (modular extension + foundation) | $45,000-$130,000 |
| Dvele Kitchen Remodel (cabinets, counters, DveleIQ integration) | $14,000-$45,000 |
| Dvele Roof Replacement (site-integrated membrane/metal) | $8,000-$20,000 |
| Dvele Small Kitchen Remodel | $9,000-$20,000 |
| Dvele Bathroom Remodel | $9,000-$28,000 |
What drives the spread: soil conditions under the foundation, fault setback adjustments that shrink the buildable footprint, crane access on hillside lots, and whether the existing Dvele structure has sustained seismic movement. Every free estimate includes a written scope, a flat price, and the documentation we produce when the work is done. Call (470) 298-9650 to schedule yours.
Serving Fremont, CA - Our Local Coverage Area

We’re based in the Fremont area and offer our Fence Installation in Fremont because we know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Dvele Construction in Fremont
Can I place a Dvele ADU on any Fremont lot?
No. Fremont’s Alquist-Priolo Fault Zone maps impose a 50-foot no-habitable-structure setback along mapped portions of the Hayward Fault trace. If your lot falls within that setback or on liquefaction-prone bay fill, standard Dvele ADU footprints may not be permitted. We pull the fault maps and geotechnical data before quoting, so you know whether your lot can take a Dvele ADU at all, and in what configuration. Call (470) 298-9650 for a written assessment.
Does Dvele’s factory warranty cover seismic cracks in Fremont?
Dvele’s factory warranty covers manufacturing defects, not seismic movement. A crack at the modular splice caused by a Hayward Fault tremor is typically a site condition, not a factory fault. We inspect the crack, determine whether it is cosmetic or structural, and give you a written repair scope. If the crack traces to a manufacturing issue, we document it the same way and you can pursue warranty with documentation in hand.
Why does my DveleIQ system drop offline during Fremont heat waves?
Utility voltage on older Centerville and Irvington grids fluctuates during peak cooling demand, and DveleIQ automation is sensitive to those swings. The system loses its handshake with the dedicated breaker panel and drops offline until power stabilizes. We verify the panel connection, check for voltage sag, and install conditioning where the fluctuations are chronic. It is a fixable problem, but it takes someone who understands both Dvele wiring and Fremont’s grid behavior.
Do I need a full Dvele-certified crew for a kitchen remodel inside a Dvele home?
No. For interior work like a kitchen remodel inside a Dvele home, the critical thing is understanding how Dvele’s wall assemblies and automation wiring run, not holding a factory certification. We are independent of Dvele, which means we are free to choose the right materials for the job: factory-specified where the structure matters, approved aftermarket for cabinets, counters, and fixtures. You get an honest quote with named brands, not a dealer markup.
How much does a Dvele roofing repair cost in Fremont?
Site-integrated Dvele roof repairs in Fremont typically run $470-$2,125 depending on the extent of the membrane or joint failure and whether substructure has rotted. Roof replacement on a Dvele home runs $8,000-$20,000. The fog and groundwater on the western flats accelerate moisture intrusion, so early repair is cheaper than waiting. Call (470) 298-9650 for an exact written quote. Estimates are free.
Service Areas Near Fremont

We serve Fremont and the surrounding East Bay communities, including Newark, Union City, Hayward, Milpitas, and San Jose. For Dvele work outside the Bay Area, we also operate in Dvele service in Los Angeles and Dvele service in Houston. Our Fremont service area page covers the neighborhoods and soil zones we work in across the city. If you are looking for broader Dvele sales & service information, start there.
Book Your Dvele Service in Fremont Today
We answer calls with a live person, 24/7. Tell us what is happening with your Dvele home, and we will put a written price in front of you before anyone picks up a tool. Call (470) 298-9650 to schedule your free estimate in Fremont.
Written by Grant Rowan, Owner at Rowan Construction Group, serving Fremont since 2007.







Before
After
Before
After