Why San Bernardino Homeowners Choose Dvele ADU
Ellery ADU Studio San Bernardino provides independent Dvele in San Bernardino service for homeowners who already own or are considering a Dvele prefab unit and need a local team that understands the brand’s panelized shell system from field experience, not a dealer manual. We are not affiliated with or authorized by Dvele; we are an independent design-build studio that has worked on Dvele LUMO, RISE, and FLEX series units across San Bernardino and the Inland Empire since the brand began shipping to Southern California. Our familiarity with Dvele’s production methods, MEP rough-in conventions, and the specific failure modes that emerge after crane set on San Bernardino’s expansive soils means we can assess, permit, and finish your Dvele ADU without waiting on manufacturer scheduling or constraints. Call (909) 359-6463 to schedule your free estimate.
Why Trust Ellery ADU Studio San Bernardino for Your Dvele ADU?
Nadia Ellery, our owner, grew up in Santa Monica watching her father narrate every construction crane on the Pacific Coast Highway. She studied architectural drafting and construction technology at Santa Monica College, then spent a decade learning the difference between a plan set that gets approved and one that sits in a city queue for four months. For the past several years she and our crew have worked across San Bernardino, including Rialto Dvele service and a detached ADU three blocks from Seccombe Lake that she still uses as a reference photo when clients ask what a finished product actually looks like.
That field experience matters with Dvele. These are not site-built stick-frame structures. The LUMO, RISE, and FLEX series arrive as panelized shells with factory-installed MEP rough-ins, and the gap between what left the factory and what meets San Bernardino’s soil conditions, climate zone, and building department expectations is where most projects stall. We have closed that gap repeatedly.
Our technicians are background-checked, uniformed, and carry license documentation on every visit. We source Dvele-specific connectors, sealants, and panel hardware through OEM channels when available, and match them with equivalent structural and weather-barrier components from established suppliers when lead times stall. Every project is governed by The Haven Standard: a written price before work starts, a documented photo record on every visit, and a 365-Day Done Right Promise backed in writing. Under Haven Standard Clause 1, the price you see is the price you pay. No door-side upsells, no scope creep.
“Tell me the lot dimensions and I can give you a real number - not a range so wide it’s useless.”
Common Dvele ADU Problems We Fix in San Bernardino

- Factory panel joints opening after crane set. Dvele shells are engineered for precision, but San Bernardino’s expansive soils - particularly in neighborhoods north of the 210 Freeway near Verdemont and the Highland border - create differential settlement that stresses panel seams within the first 12-24 months. We see hairline cracks at wall-to-wall and wall-to-roof joints that started as cosmetic and became structural moisture paths. Our fix: re-torque the panel connection hardware to Dvele’s original torque spec, then re-seal with a compatible flexible sealant rated for the 108°F+ heat cycling these units face. We document the before condition with photos and mark torque values on the written record.
- MEP rough-in stub-outs misaligned with site laterals. The factory plumbing and electrical rough-ins are positioned for an idealized pad placement. In San Bernardino, where older homes often have 60-100 amp panels and sewer laterals that were hand-dug in the 1960s, “idealized” is rare. Our crew recently took a Dvele LUMO shell that had been craned onto a prepared pad in San Bernardino and finished the interior MEP tie-ins, only to find the factory plumbing stub-out was 4 inches off the site lateral and the panel seam at the wet wall had opened during set. We re-flashed the seam, re-routed the drain with a shielded coupling, and passed the Title 24 verification after swapping the specified heat pump to match the as-built envelope. The homeowner got a signed-off, move-in-ready unit without pulling the shell back to the factory.
- Title 24 envelope compliance gaps. Dvele provides a factory energy model, but that model assumes specific fenestration and HVAC pairings. When San Bernardino homeowners substitute aftermarket windows or specify a different heat pump to handle the city’s wider temperature range - summer highs over 108°F and occasional hard freezes - the as-built envelope may no longer match the compliance documentation. We run a revised Title 24 calculation using the actual installed components, then adjust insulation values or equipment specs to bring the project into compliance before the inspector arrives.
- Roof-to-wall flashing failure at module seams. San Bernardino’s monsoon-season wind-driven rain and extreme thermal expansion create conditions that test weather barrier detailing more severely than coastal California climates. Dvele’s factory flashing is sound, but the installation sequence during crane set can compromise continuity at the seam. We inspect with a blower door and infrared camera when indicated, then re-detail the transition with compatible peel-and-stick membrane and counter-flashing that matches the original design intent.
- HVAC undersizing for inland valley conditions. Dvele’s standard heat pump specs are calibrated for moderate California climates. San Bernardino’s 1,050-foot elevation and temperature swings - far wider than Riverside or Ontario - mean the factory equipment can struggle during peak summer and winter events. We evaluate Manual J load calculations against actual site exposure, then specify upsized equipment or supplemental mini-splits when the numbers justify it. The revised spec is documented in the permit set and the Haven Standard photo record.
Dvele Parts & Our Repair-vs-Replace Approach
Because Dvele shells are engineered as a system, our default stance is repair and re-seal rather than replace. Full panel replacement only when structural compromise is documented by an engineer. We stock Dvele-compatible panel connectors, structural sealants, and weather-barrier tapes at our San Bernardino warehouse for same-week turnaround on most service calls. When OEM parts are back-ordered - not uncommon with newer prefab brands - we match specifications with components from established suppliers like Prosoco, Tremco, or equivalent, and we document the substitution in your permit file.
Our decision tree is straightforward. Can the seam be re-flashed and re-sealed to factory performance? We do that. Is the panel core compromised by moisture or structural deformation? We bring in a licensed engineer, document the finding, and quote panel replacement with full transparency. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing. Call (909) 359-6463 for a written estimate on your Dvele service.
Our Dvele Service Process - Step by Step

- 1
Diagnosis with documentation. We arrive with a checklist specific to your Dvele series. Panel seam inspection, MEP alignment verification, Title 24 component matching, and thermal imaging when indicated. You receive a documented photo record before we touch anything.
- 2
Written scope and price. Before any repair or installation work begins, you get a line-item quote with the Haven Standard Clause 1 guarantee: this is the price, fixed. No change orders, no “while we’re here” additions.
- 3
Repair or install with Dvele-compatible methods. We use OEM parts when available, matched equivalents when necessary, and we torque, seal, and flash to the original engineering intent. Every step is photographed.
- 4
Testing and verification. Blower door, infrared, or pressure testing as appropriate. Title 24 documentation revised and submitted if equipment or envelope specs changed.
- 5
Warranty and closeout. The 365-Day Done Right Promise is activated in writing. Your final packet includes the photo record, the signed permit, and the warranty document. A live person answers calls 24/7 if questions arise.
Dvele Products We Service & Install in San Bernardino
We work across the Dvele LUMO series - the compact studio and one-bedroom configurations popular for backyard rental units on Dvele in Colton and San Bernardino’s 7,500-10,000 sq ft lots - the Dvele RISE series with its expanded floor plans and upgraded finishes, and the Dvele FLEX series designed for adaptive site conditions. For each, we handle prefab ADU installation from crane coordination through final inspection, garage conversion integration when a Dvele shell is adapted to an existing structure, and Title 24 energy compliance documentation. We stock panel hardware, sealants, and MEP transition fittings matched to all three series at our local warehouse.
We Also Service These Brands

Our prefab and modular fluency extends beyond Dvele. We specify and coordinate Abodu, Cover, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie systems within the same single-contract, single-written-price model. If you are comparing brands or have an existing estimate from another manufacturer, we offer a Free Second Opinion on any written estimate already in hand.
FAQs - Dvele ADU Service in San Bernardino
Is Ellery ADU Studio San Bernardino authorized by Dvele?
No. We are an independent Dvele service provider with no dealer agreement or manufacturer authorization. Our expertise comes from field work on Dvele units across San Bernardino and the Inland Empire, not from factory training. This independence means we can source parts through multiple channels and adjust specifications to meet local conditions without manufacturer constraint.
Do you use genuine Dvele/OEM parts?
We source Dvele-specific connectors, sealants, and panel hardware through OEM channels when available. When lead times are excessive, we match specifications with equivalent components from established structural and weather-barrier suppliers, and we document every substitution in your permit file and photo record.
How long does Dvele service take?
Most service calls for seam re-sealing, MEP alignment correction, or flashing repair are completed in one to three days once parts are on hand. Title 24 recalculations add 5-10 business days for submission and city review. We stock common Dvele-compatible hardware locally for same-week starts. Call (909) 359-6463 to check current availability for your series.
What Dvele models/series do you cover?
We service and install the Dvele LUMO series, Dvele RISE series, and Dvele FLEX series, including all current floor plan configurations and finish packages shipped to Southern California.
Will service void my Dvele warranty?
As an independent provider, we cannot extend or enforce manufacturer warranty terms. We document every repair with photos, torque values, and material specifications so you have a complete record if warranty questions arise. Our own 365-Day Done Right Promise covers our workmanship independently.
How much does Dvele ADU service cost in San Bernardino?
Service calls for diagnosis and minor seam or MEP correction typically run $2,800-$6,500. More extensive panel re-sealing, structural re-torque, or Title 24 recalculation with equipment swaps range from $8,500-$18,000 depending on unit size and site conditions. These are fixed-scope ranges; your written quote, delivered before any work starts under Haven Standard Clause 1, will be specific to your Dvele series and the condition we find. Call (909) 359-6463 for an exact quote - estimates are free.
Can you install a Dvele prefab ADU on a lot in San Bernardino that already has a detached garage?
Yes, provided the lot meets setback and coverage requirements under the City of San Bernardino’s ADU ordinance. Many San Bernardino lots in the 7,500-10,000 sq ft range accommodate both structures. We verify utility capacity - especially electrical service, since 60-100 amp panels are common in local post-WWII housing stock - and coordinate crane access around the existing garage. Call (909) 359-6463 for a site-specific assessment.
Does a Dvele ADU need Title 24 documentation separate from what the factory provides?
Often yes. The factory energy model assumes specific fenestration and HVAC pairings. Any deviation - common in San Bernardino due to climate-driven equipment upsizing - requires a revised Title 24 calculation. We handle this as part of our ADU Design & Permitting single-contract service, submitting the revised compliance package to the city with the permit set.
What happens if a Dvele panel seam leaks after installation in San Bernardino?
We inspect the seam with thermal imaging and blower door testing if indicated, then re-torque connections to spec and re-seal with material rated for San Bernardino’s heat cycling and monsoon exposure. The repair is photographed, documented, and covered under our 365-Day Done Right Promise.
Can a Dvele shell be used for a garage conversion ADU instead of a new detached build?
It is possible but requires careful evaluation. Dvele shells are engineered for specific foundation and structural support conditions. Adapting one to an existing garage slab in San Bernardino means verifying slab thickness, seismic anchorage, and whether the garage structure can accept the panel loads. We have done this; we have also advised against it when the existing structure made conversion uneconomical. The honest assessment is part of your free estimate.
Do you handle Dvele ADU permits with the City of San Bernardino?
Yes. Permit submission, plan check response, and inspection scheduling are included in our single-contract service. We know the San Bernardino building department’s specific requirements for prefab ADUs, including when fault-proximity study zones in northern neighborhoods trigger geotechnical report requirements that delay foundation permits.
Book Your Dvele Service in San Bernardino, CA

Call (909) 359-6463 to schedule your free estimate. Nadia Ellery or a member of our team will review your Dvele series, site conditions, and any existing documentation, then deliver a written, line-item quote before any work begins. Every project includes the Haven Standard guarantee: fixed price, photo record, and 365-Day Done Right Promise - in writing, from day one.
Written by Nadia Ellery, Owner at Ellery ADU Studio San Bernardino, serving San Bernardino since 2015.