The Ellery ADU Studio Fontana Guarantee
When you sign a contract with us in Fontana, you’re not buying a promise - you’re buying a permitted ADU with a written price locked in, a photo record of every visit, and a 365-Day Done Right Promise that says if the finished unit doesn’t match the permitted drawings, we make it right. That’s not marketing language. It’s Haven Standard Clause 5, and it governs every garage conversion, detached ADU, junior ADU, and interior conversion we’ve built since 2015. We’ve designed, permitted, and completed over 900 ADUs across Southern California, and every single one started with a written quote and ended with documented proof of what was done.
What’s Covered
- Workmanship to the permitted drawings. Our 365-Day Done Right Promise means if your finished ADU in Fontana doesn’t match what was approved by the city, we return and correct it - in writing, before your project starts, not as a favor after the fact.
- No surprise pricing. Under Haven Standard Clause 1, every project carries a written price before any work begins. The words “call for a quote” don’t appear on our site because they don’t appear in our process.
- Documented photo record on every visit. You receive evidence of what we found and what we did, not a summary of how it felt. This includes site conditions, utility rough-ins, foundation work, and final finishes.
- Background-checked, uniformed crews. The license number on every page is verified, not just claimed, and every technician and crew member working in Fontana passes a background check.
- Cleanup and site protection. We protect your existing property during construction and leave the site broom-clean after each phase. Your main house shouldn’t look like a construction zone because we’re building behind it.
- On-time milestone delivery. Our design-build model means one contract, one schedule, one point of accountability. The designer can’t blame the builder, and the builder can’t blame the designer - because they’re both us.
- Honest scope with no door-side upsells. Under Haven Standard Clause 5 (No Surprises), the scope is locked at signing. No “while we’re here” additions, no change orders framed as minor that add four figures.
- Prefab and modular coordination. We specify and coordinate Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, and James Hardie systems under the same single contract, with the same written price guarantee.
Our Satisfaction Promise
If something’s not right with your ADU in Fontana, we want to know before it becomes a regret. Here’s how the make-it-right process works.
First, call us at (909) 637-3715. A live person answers - no voicemail queue, no callback that doesn’t materialize. Describe what you’re seeing, and we’ll schedule a site visit, typically within 48 hours for warranty items.
Second, we bring the photo record from your project and compare it to what’s in front of us. Nadia Ellery reviews every warranty call personally. If the finished work doesn’t match the permitted drawings, we define the correction in writing, with a timeline, and we execute it at our cost.
Third, we document the fix with new photos, add them to your project file, and confirm the resolution in writing. The 365-Day Done Right Promise isn’t a feeling - it’s a documented process with a paper trail. We’ve honored it on projects where the issue was ours, and we’ve used the same documentation to show homeowners when an issue stemmed from a change they requested post-signing. Either way, you get clarity, not a runaround.
If you’re not satisfied with how a concern is being handled, Nadia Ellery’s direct line is available to every client. There’s no escalation department because there’s no department to escalate through.
Before
AfterLicensed & Insured Backing
A guarantee is only as solid as the business behind it. We’re licensed and insured, which means if something goes wrong on your Fontana property, there’s a policy and a regulatory body that can require us to answer for it. That’s not abstract - it’s the difference between a contractor who can disappear and one whose license status you can verify with the state today.
Our insurance covers general liability and workers’ compensation. If a crew member is injured on your property, you’re not exposed. If we damage your existing home during a garage conversion, there’s coverage. We’ve carried these policies since 2015 because Haven Standard Clause 1 doesn’t just cover pricing - it assumes we’re still in business to honor it.
We also pull every permit required for your ADU project and pass every inspection. In Fontana, that means San Bernardino County or city inspections depending on your address, and we handle the scheduling, the corrections, and the re-inspections. A permit isn’t a guarantee of quality, but an unpermitted ADU is a guarantee of future problems - financing issues, insurance denials, forced removal. We don’t build that way.
When you hire Ellery ADU Studio Fontana, you’re hiring a design-build studio that’s completed 900+ ADUs with a written price every time, a photo record every visit, and a live person on the phone when you call. The guarantee isn’t the paperwork - it’s the pattern.
Free Second Opinion
If you already have a written estimate from another Fontana ADU contractor, we’ll review it at no charge. We’ll tell you what’s missing, what’s inflated, and what’s realistic for your specific site. No obligation, no pressure - just the same direct assessment Nadia Ellery brings to her own pre-construction meetings. Call (909) 637-3715 to schedule.
Written by Nadia Ellery, Owner at Ellery ADU Studio Fontana, serving Fontana since 2015.