Cover Garage Conversion ADU Nationwide

Cover Garage Conversion ADU: The North Hollywood Owner’s Guide

Cover garage conversion ADU systems in North Hollywood typically run $85,000-$165,000 all-in, from the permit set through final inspection, with most single-vehicle garage conversions landing between $110,000 and $140,000. We stock and coordinate Cover-compatible structural panels, connection hardware, and weather-sealing systems for same-week installation once your permit set is approved. Most North Hollywood owners first realize something’s wrong when the panel joints start showing daylight, the HVAC mini-split can’t hold temperature, or the city inspector flags a connection detail that doesn’t match the approved permit drawings.

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Which Cover Models This Applies To

Cover’s garage conversion system uses a standardized panel kit with model identifiers stamped on the aluminum frame extrusions, not on the facing material. Look for a 10-digit serial on the header track above the garage door opening, or on the electrical chase cover inside the unit. The current generation, sometimes called the Cover Series 2 by owners, uses 4-inch wall panels with integrated conduit channels; earlier installs from 2019-2021 used 3.5-inch panels with surface-mounted electrical, and the connection hardware is not interchangeable.

We specify Cover within our single-contract design-build model, same as we do for Abodu and Dvele systems. Ellery ADU Studio North Hollywood is an independent service provider, not affiliated with Cover. For the structural connection plates between Cover panels and your existing garage slab, we use Cover OEM hardware on occupied conversions because the city of Los Angeles requires manufacturer documentation for structural connections in ADUs. On non-habitable studio or storage conversions where the code is less specific, we sometimes specify an equivalent Simpson Strong-Tie bracket set that carries the same ICC-ES report, which saves roughly $400-$600 in material and two weeks in lead time.

The critical compatibility gotcha in North Hollywood specifically: Cover’s standard panel width is 24 inches on center. If your garage interior width isn’t divisible by 24 inches plus the end trim detail, you need a custom infill panel. We’ve measured three garages in the Valley Village and NoHo Arts District areas where the previous owner had widened the door opening without pulling a permit, throwing off the panel math by exactly 8 inches. That’s not a field cut you make with a Sawzall; it’s a revised structural calculation and a permit amendment.

Signs Your Cover Garage Conversion ADU Is Failing

• Panel joints gapping or weeping moisture. Cover’s tongue-and-groove panel connection relies on a butyl gasket that compresses on install. In North Hollywood’s combination of hot dry summers and occasional heavy winter rains, that gasket can take a compression set after 6-8 years and lose its seal. We find this most often on south- and west-facing walls where thermal cycling is worst.
• HVAC short-cycling or inability to reach set temperature. Cover’s specified mini-split capacity assumes the envelope performs to its rated R-value. When panel seals degrade or the vapor barrier is punctured during a later electrical or plumbing modification, the unit is effectively sized for a larger load. The equipment isn’t broken; the enclosure is lying to it.
• Floor-level drafts or visible slab cracking near the perimeter track. Cover’s system includes a pressure-treated sill plate and vapor barrier detail where the wall panel meets the existing garage slab. If that barrier was omitted or damaged during a previous owner’s DIY project, moisture wicks up and the plate swells, sometimes lifting the panel base enough to break the weather seal.
• City inspector flags a connection detail on resale or refinance. This is the expensive one. Los Angeles Department of Building and Safety has tightened ADU structural documentation requirements twice since 2020. A Cover install that passed inspection in 2018 may not meet current LADBS standards for anchor bolt spacing or shear wall nailing patterns. We see this on North Hollywood properties in the R1 and RE zones most often.
• Electrical conduit channels congested or overheating. Cover’s integrated chase is rated for a specific conductor fill. Owners who later add circuits, EV charging, or a sub-panel without recalculating the derate can overfill the chase. The symptom is usually a warm spot on the wall panel or a breaker that trips under load that should be well within capacity.

Replacement Cost & What’s Included

These are installed prices, inclusive of our documented photo record on every visit and the 365-Day Done Right Promise. Under Haven Standard Clause 1, the written price you receive before any work starts is the price on the final invoice. The range depends on three factors: whether we can source Cover OEM hardware or use an ICC-ES equivalent, whether your existing permit set is complete and accurate, and whether the slab condition requires a structural engineer’s letter. We pull all permits and schedule all inspections; that’s included, not extra.

Every project receives a written scope, a permit set reviewed by our in-house drafting team, and a photo record uploaded to your client portal within 24 hours of each site visit. If the finished work doesn’t match the permitted drawings, we make it right under Clause 9 of The Haven Standard. That’s not a slogan; it’s the agreement you sign.

DIY or Call Us?

There is one thing a Cover owner can safely check without tools: the panel serial numbers. Write them down, photograph the header track stamp, and email them to us. We’ll cross-reference against Cover’s production runs and tell you if your hardware generation has any known service bulletins. No charge.

Everything else crosses into territory where a mistake is expensive and sometimes dangerous. The panel connections are structural; remove the wrong bolt and you’ve compromised the shear wall. The electrical chases are not user-serviceable without understanding California’s Title 24 derating requirements. And any modification to the envelope triggers a re-inspection of the entire ADU under current LADBS rules, not just the changed component.

We’ve been called to three North Hollywood jobs in the past two years where an owner’s handyman “fixed” a gasket leak with silicone caulk, which trapped moisture and rotted the sill plate over 18 months. The $400 handyman repair became an $8,000 panel replacement. Tell me the lot dimensions and I will tell you what fits - everything else is paperwork we handle. Call (424) 407-8266 to schedule your free estimate.

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