A Ellery company - serving Fontana, CA

Customer Reviews - Ellery ADU Studio Fontana

What Fontana Homeowners Say About Ellery ADU Studio Fontana

Reviews matter because ADUs are a five-figure commitment that takes months, and nobody wants to discover hidden costs in month three or find out their contractor’s “permit experience” meant they once pulled a fence permit. We’ve earned our feedback by documenting every visit with photos, locking every price in writing before work starts under Haven Standard Clause 1, and standing behind the 365-Day Done Right Promise. The comments below come from Fontana homeowners who went through our full design-build process, from first site visit to final inspection.

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Recent Reviews

“We’d already paid another firm $4,200 for drawings that got rejected by Fontana Planning twice for setback issues on our Southridge Village lot. Nadia’s team found a four-foot variance in the municipal code we’d never been told about, redrew the garage conversion in three weeks, and had us permitted by month two. The written price at signing was $67,500 all-in, and the final invoice was $67,500. I’ve still got the photo folder from every inspection visit.”

Kelly W., Southridge Village, Fontana

“Our detached ADU in the North Fontana area needed tie-in to existing sewer lateral, and nobody else we interviewed would commit to whether that was included or extra. Ellery specified it line-by-line in the scope, showed us the photo of the existing cleanout on day one, and the price didn’t move. The 365-Day Done Right Promise was in the contract, not a handshake.”

Scott H., North Fontana

“We compared three companies for a junior ADU conversion of our mother-in-law quarters near Summit Avenue. One gave us a verbal ‘around fifty,’ another sent a one-page email. Ellery delivered a twelve-page written scope with permit fees broken out, a photo documentation schedule, and the actual license number on every page. When the inspector flagged a window egress issue, they handled the revision without a change order. That’s Haven Standard Clause 5 in action.”

Christine N., Summit Avenue area, Fontana

“I brought them a written estimate from a modular company for a backyard unit. The Free Second Opinion saved us $8,300 - Nadia pointed out that the ‘foundation’ line item didn’t include Fontana’s specific seismic strap requirements, which would’ve surfaced as a surprise during rough inspection. We ended up going with a site-built detached ADU under Ellery’s single contract instead. One point of contact, one written price, no designer blaming the builder or vice versa.”

Marisol M., Sierra Lakes, Fontana

“The crew that handled our garage conversion ADU near Oleander Avenue was uniformed, background-checked, and the foreman’s license was posted on the job site every day. More importantly, every evening I got an email with photos of what they’d found and what they’d done. When my husband asked why a section of drywall had been removed, we already had the picture showing the old wiring the inspector would’ve flagged. Transparency like that is why we didn’t lose sleep over the project.”

Kelly W., Oleander Avenue area, Fontana

“We specified a Cover unit for our backyard ADU because we liked the timeline, but we didn’t want to manage the coordination between the prefab manufacturer and a separate local contractor. Ellery handled the Cover specification, the Fontana foundation and utility tie-ins, and the final inspection under one contract. The written price included the module, the crane rental, the sewer connection, and the driveway repair. One invoice. One person to call. That’s the design-build difference Nadia talks about.”

Scott H., Hunter’s Ridge, Fontana

Why Customers Trust Us

Contractor hand-drawing ADU floor plans on graph paper with building codes
Why Customers Trust Us

The patterns in these reviews aren’t accidental. They’re the result of systems we’ve run since 2015. The written price before work starts isn’t a sales tactic - it’s Haven Standard Clause 1, and it appears in every contract we sign. The documented photo record isn’t a nice-to-have; it’s evidence of what was found and what was done, delivered to your inbox after every visit. The 365-Day Done Right Promise isn’t a verbal assurance; it’s in writing before your project starts, and it covers build-to-drawing compliance, not just “we’ll make you happy.”

We’ve designed, permitted, and built over 900 ADUs since 2015, and every one of them operated under these same terms. No call-for-pricing pages. No scope creep disguised as minor change orders. No designer and builder pointing at each other when the wall doesn’t match the drawing.

Whether you’re looking at a garage conversion in Southridge Village, a detached unit in Sierra Lakes, or a junior ADU near Summit Avenue, the process is the same: site visit, written scope, locked price, documented build, guaranteed result.

Call (909) 637-3715 to schedule your free estimate. If you already have a written estimate in hand, ask about our Free Second Opinion - we’ll review it line by line and tell you what’s actually included.

Written by Nadia Ellery, Owner at Ellery ADU Studio Fontana, serving Fontana since 2015.

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