Dvele Home Addition Contractor in Los Angeles: What to Know First
We provide independent Dvele home addition contractor work across Los Angeles, typically completing most addition and bump-out projects in six to fourteen weeks depending on permit timelines and scope. A Dvele panel-and-cassette home addition in Los Angeles generally runs $320 to $520 per square foot for design, permits, site work, and finish, though second-story work and foundation upgrades push toward the higher end. We’re not affiliated with or authorized by Dvele, but we know their systems well, and every estimate is a written price before any work begins.
This page is for Los Angeles homeowners who own a Dvele home and want to add space: a bedroom, a second story, a sunroom, a bathroom, or a garage bump-out. Call (213) 698-7116 and a live person answers, 24/7.
How Dvele Products Fail – and How We Fix Them
Dvele’s homes are built around prefabricated wall and floor cassettes, a steel-and-wood hybrid frame, and a tightly sealed envelope. Most of the addition work we do starts because an owner wants more space. But when failures happen, they follow patterns we know well. Here are the five we see most in Los Angeles:
- Roof cassette joint leaks at the original-to-addition transition. On Dvele’s newer single-family series, the factory roof cassettes are designed to tie into the main structure at a precise angle. When a prior addition was framed by a general contractor unfamiliar with the cassette system, the transition flashing gets lapped wrong, and Los Angeles winter rains find the seam. We re-flash the joint and re-seal with the same class of sealant the factory uses, then water-test it before we call it done.
- Sagging floor cassettes in cantilevered bump-outs. Dvele floor cassettes are engineered for specific span and load charts. When a bump-out addition extends beyond what the cassette was rated for, or when dead loads shift, the floor develops a dip within a season. We open the underside, verify the actual span against the factory load table, and either add structural support or re-engineer the cantilever before refinishing.
- Wall panel fastener loosening that causes drywall nails to telegraph. Dvele’s steel-framed wall cassettes expand and contract differently than Los Angeles contractors expect. Over a two-to-three-year cycle of seasonal temperature shifts, corner fasteners can loosen just enough to push drywall fasteners outward, leaving visible dimples and hairline cracks along panel lines. We re-secure the panel ties, then re-tape and re-texture so the wall stays flat.
- HVAC and plumbing chases not framed out properly by the original addition crew. Dvele’s wall cassettes run mechanical chases vertically through the panel core. When a previous contractor cut into the wrong part of a panel or blocked a chase, the addition ends up with dead air pockets and long plumbing runs that drain slowly. We map the chases before we cut anything, and we re-route through the factory-designed pathways so air and water move the way the home was engineered to handle them.
- Stucco and siding joint failure where a new addition meets the Dvele envelope. Dvele’s exterior finish system uses a drainage plane that a lot of conventional stucco crews in Los Angeles don’t account for. When the new addition’s stucco gets applied directly over the Dvele panel without a compatible drainage layer, moisture gets trapped, and within two years you see staining and soft spots along the seam. We pull the offending section, install the proper drainage mat and flashing, and match the finish so it reads as one wall, not two eras.
Our Dvele Home Addition Contractor Process
Here’s how a Dvele addition job runs with us, from the first call to the final walkthrough:
- 1
Call and scope. You call (213) 698-7116. We ask what the new space needs to do, review your Dvele model and any original drawings you have, and schedule a site visit.
- 2
Site assessment. We inspect the existing structure: cassette condition, foundation, roof transitions, and where the mechanical chases run. We take measurements and note the Los Angeles permit path (LADBS) for your specific addition type.
- 3
Written price and plan. You get a written scope of work with a line-item price before anything is signed. If the addition needs engineered drawings, that’s part of the number.
- 4
Permits and prep. We pull the permits, order materials, and confirm the arrival window. If you’re matching Dvele-spec materials, we source factory-compatible panels and finishes; if aftermarket makes more sense, we tell you why and what changes.
- 5
Build out. The crew shows up clean, uniformed, and background-checked. We frame, run mechanicals, close walls, and finish. The job site stays clean at the end of every day.
- 6
Test, inspect, walkthrough. We test water, air, and structure. The city inspections happen. We walk the space with you and put the 365-Day Done Right Promise in writing before we leave.
What Dvele Home Addition Contractor Costs in Los Angeles
Honest numbers, because you shouldn’t have to call just to get a ballpark. These are Los Angeles market ranges for Dvele addition work, including permits, materials, labor, and finish:
- Bump-out addition (80 – 150 sq ft): $38,000 – $72,000
- Single-room addition (200 – 400 sq ft): $64,000 – $180,000
- Bathroom addition (60 – 120 sq ft): $48,000 – $110,000
- Sunroom addition (150 – 300 sq ft): $52,000 – $125,000
- Garage addition or extension: $55,000 – $145,000
- Second-story addition (400 – 800 sq ft): $160,000 – $420,000
What moves the price: foundation condition, whether the existing Dvele cassettes need reinforcement, second-story versus ground-level work, bathroom or kitchen plumbing, and how much the existing systems need to be extended. The number we give you is the number you pay. No change orders at the door. Call (213) 698-7116 for an exact written quote. Estimates are free.
Why Los Angeles Homeowners Call Lodgewick ADU Los Angeles for Dvele Work
Lodgewick ADU Los Angeles is the ADU company of the Kingswell family, and we’ve been at this since 2010. Our Dvele work runs on The Kingswell Guarantee: a written price before work starts, a defined arrival window, a clean job site, and a written guarantee on every project. If the work fails within 365 days, we come back and make it right, free.
Our techs know Dvele’s cassette systems, and they also work with Abodu, Cover, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie products, so when an addition needs to tie into a prefab envelope or match a manufactured finish, we’re not guessing. Russ Delmar owns this location. He grew up in the Palms neighborhood of Los Angeles, a few blocks from the old Helms Bakery building, and he still knows most of his neighbors by name. He runs every Dvele job the way he wished someone had run his sister’s garage conversion: written scope, real timeline, and a phone that gets answered. Tell me what you need the space to do, and I’ll tell you exactly what it’s going to take – no guessing, no runaround.
FAQs
Dvele’s structural warranty covers the factory-built cassettes and systems, but an addition that penetrates the envelope or modifies load paths can affect coverage if the work isn’t documented properly. As an independent Dvele service provider in Los Angeles, we don’t speak for Dvele’s warranty team, but we do structure our additions to preserve the original engineering, and we document every connection and penetration for your records. Call (213) 698-7116 and we’ll walk through your specific model and plan.
Most single-room and bump-out additions on Dvele homes in Los Angeles take six to fourteen weeks from permit submittal to final inspection. Second-story additions run longer, typically five to eight months, because of structural engineering, foundation verification, and the extra inspection cycles from LADBS. Your written quote includes a real timeline, not a guess.
It depends on what the project needs and what’s available. When we’re adding onto a Dvele structure, we match factory-spec materials where the connection is structural or weather-exposed: roof cassettes, wall panel ties, and the drainage plane. For finish work like drywall, flooring, and trim, we use standard materials that meet or exceed the original spec. We’ll tell you which is which before work starts, and the price reflects that choice.
Sometimes. Dvele’s single-story models need a structural review before a second story goes on: the foundation, the ground-floor wall cassettes, and the roof cassette connections all have to be verified against the additional load. We pull the original engineering documents, bring in a structural engineer when the load tables don’t cover it, and give you a written answer on what’s possible and what it costs. If the numbers don’t make sense, we’ll say so.
You call (213) 698-7116, and we come back. The 365-Day Done Right Promise is in writing on every project: if the work isn’t right within a year, we make it right, free. You won’t chase a voicemail. A live person answers, 24/7.
Written by Russ Delmar, Owner, Lodgewick ADU Los Angeles at Lodgewick ADU Los Angeles, serving Los Angeles and nearby areas.
