Dvele Garage Conversion ADU: The San Francisco Owner’s Guide
We stock and install Dvele-compatible garage conversion ADU parts across San Francisco, with most common replacements running $320 to $1,800 installed depending on the component. If you’re reading this, you’ve likely noticed something off: a door that won’t seal, a panel joint that’s opened up, flashing that’s pulled away from the wall, or a ventilation unit that’s started rattling. Dvele builds their garage conversion ADU modules in a controlled factory setting, which means the parts are precise, but San Francisco’s fog, salt air, and temperature swings put real stress on the seals, fasteners, and mechanical connections once the unit is on site.
Which Dvele Models This Applies To

Dvele’s garage conversion line uses a modular panel system that shares components across their ADU series, but there are differences that matter. Older Dvele units built before 2019 typically used a different flashing profile and a narrower door threshold than current production, so a part that fits a 2021 unit won’t necessarily seat correctly on a 2017 build. The fastest way to identify what you need is to check the label on the interior side of the garage door frame or the underside of the sill: Dvele stamps a four-digit component code there, and that code tells us which production batch your part came from.
For Dvele specifically, we lean toward OEM parts for anything structural: door thresholds, flashing, and the wall-to-floor connection points. These are engineered to Dvele’s tolerances, and aftermarket equivalents sometimes sit a millimeter proud or leave a gap that lets moisture in. For hardware like hinges, weatherstripping, and vent covers, quality aftermarket options from the same manufacturers Dvele uses often cost 30 to 40 percent less and perform identically. We also stock select parts for Abodu and Cover units, since many San Francisco homeowners have one of those brands on the lot alongside a Dvele.
Signs Your Dvele Garage Conversion ADU Is Failing
- Water staining at the bottom corners of the door opening. The threshold seal on Dvele units takes the brunt of San Francisco’s rainy season, and once it compresses or cracks, water wicks into the door frame and the finished floor edge.
- Visible light or daylight gaps around the garage door or window frames. This usually means the factory weatherstripping has lost its rebound or the panel-to-frame fasteners have loosened from repeated thermal expansion.
- A musty smell that won’t air out. Trapped moisture behind a wall panel or under the sill points to a failed seal or flashing that’s allowed condensation to build up inside the wall cavity.
- The door binds or scrapes when opening and closing. Dvele’s modular frames can shift slightly as the ground settles, especially on San Francisco hillside lots, which throws the door out of square and wears the rollers and track.
- Increased utility bills with no change in usage. A failed seal at the garage door or window lets conditioned air escape constantly, which you’ll see in a slow climb on your PG&E bill month after month.
Replacement Cost & What’s Included

Here’s what we’re seeing in San Francisco for Dvele garage conversion ADU part replacements, installed:
- Weatherstripping and threshold seals: $120 to $380 installed, depending on linear footage and whether the sill needs re-bedding
- Door and window flashing replacement: $350 to $750 installed, including removal of the old flashing and resealing the opening
- Panel joint resealing (per wall section): $200 to $500, which includes cleaning out the old sealant and applying the proper Dvele-spec product
- Ventilation fan or register replacement: $180 to $450 installed, depending on the unit and whether duct connections need resealing
- Door realignment with new rollers and track adjustment: $250 to $600, including resealing the threshold after the door is square again
Every quote is written before work starts, and the price doesn’t change at the door. The written guarantee covers the part and our labor for 365 days under the Done Right Promise: if the repair fails within that window, we come back and make it right at no charge.
DIY or Call Us?
You can safely check a few things yourself: run your hand along the door seal to feel for gaps, look for visible cracking in the caulk or flashing, and note whether the door closes evenly. What you shouldn’t do is pull apart a Dvele panel joint or attempt to reseal flashing without knowing the specific sealant Dvele used on your production run. The wrong product won’t bond to the existing material, and once you’ve stripped the original seal, the repair gets more involved and more expensive than it needed to be. If the part is structural or water-related, call us at (707) 760-0502 and we’ll walk the site before quoting anything. Tell me what the space needs to do, and we’ll figure out how to build it right.
FAQs

Seals and weatherstripping on a Dvele garage conversion ADU in San Francisco typically last 5 to 8 years before fog, rain, and coastal air degrade them enough to warrant replacement. Structural components like door frames and wall panels last much longer, often 20-plus years, but the seals and fasteners between them are the first to go. If your unit is near the ocean, plan on the shorter end of that range. Call (707) 760-0502 and we’ll tell you exactly what condition your parts are in.
It depends on the part. Weatherstripping that’s compressed or torn should be replaced, not patched, and flashing that’s pulled away from the wall nearly always needs full replacement because the failure point is the bond, not the material. Some panel joints can be cleaned and resealed without replacing any component, which is why we always inspect before quoting. A written price comes before any work starts, so you’ll know the repair-versus-replace tradeoff in exact dollars.
Most Dvele garage conversion ADU part replacements in San Francisco take between 2 and 6 hours on site, including removal, cleanup, and a final inspection. If we find additional damage once the old part is off, we’ll show you what we found and give you a written price for the additional work before proceeding. Call (707) 760-0502 to schedule a time that works for your schedule.
We carry the most common Dvele seals, thresholds, flashing profiles, and hardware on our service vehicles, which means most San Francisco replacements happen same-visit once we’ve seen the job. For less common parts tied to a specific production run, we order direct from the manufacturer, and that typically adds 3 to 5 business days. Either way, you’ll know the timeline in writing before we start.
Written by Russ Delmar, Owner, Lodgewick ADU San Francisco at Lodgewick ADU San Francisco, serving San Francisco and nearby areas.


