Our Guarantee & Warranty - Ellery ADU Studio Garden Grove

The Ellery ADU Studio Garden Grove Guarantee

We stand behind every ADU we design, permit, and build in Garden Grove with one simple rule: if it’s not done right, we make it right. That isn’t a slogan we tacked on after 900 projects. It’s the 365-Day Done Right Promise, and we put it in writing before your project starts. For Garden Grove homeowners, this means your garage conversion in the West Grove neighborhood, your detached ADU near Euclid Street, or your junior ADU off Chapman Avenue is covered by a guarantee that binds both sides of our design-build contract. No designer blaming the builder. No builder blaming the drawings. One written price, one responsible party, and one year to catch anything that doesn’t match what we promised.

Call (657) 567-6590

What’s Covered

• Workmanship that matches the permitted drawings. If the finished ADU doesn’t align with the plans we submitted to Garden Grove Building & Safety and got approved, we correct it at our expense under the 365-Day Done Right Promise.
• Parts and materials specified in your written scope. We don’t substitute brands mid-project without your signed approval. The windows, fixtures, siding, and systems named in your contract are what arrive on site.
• Site condition documentation on every visit. You receive a documented photo record showing what we found and what we did, not a summary of how it felt. This creates a timestamped trail if questions arise later.
• On-time milestone communication. We don’t guarantee weather or permit review speed, but we do guarantee you’ll know where your project stands. No ghosting between concrete pour and final inspection.
• Honest pricing with zero scope creep. Under Haven Standard Clause 1, you get a written price before any work starts. Under Clause 5 (No Surprises), that scope locks at signing. No door-side upsells, no “while we’re here” additions.
• Prefab and modular coordination. When we specify Abodu, Cover, Dvele, Mighty Buildings, Boxabl, Plant Prefab, Tuff Shed, or James Hardie systems, we warranty our coordination of delivery, foundation prep, and utility tie-in, not just the handoff to another contractor.
• Permit compliance through final inspection. We pull permits, we meet inspectors, we pass. If corrections are required, we handle them. Your CO (Certificate of Occupancy) is the finish line we cross together.

Our Satisfaction Promise

If something’s off, we want to hear about it while we can still fix it, not in a review six months later. Here’s how the make-it-right process works.

Call (657) 567-6590. A live person answers, 24/7. No voicemail queue, no callback that doesn’t materialize. Describe what you’re seeing. We’ll schedule a site visit, usually within 48 hours for active concerns. Our technician arrives with your file, your photo record, and your original scope. We compare what’s in front of us to what we promised in writing.

If we missed it, we fix it. No diagnostic fees, no “let us check and get back to you” delays. The 365-Day Done Right Promise covers anything that doesn’t match the permitted drawings or written scope. That includes foundation settling that affects door operation, electrical circuits that don’t match the panel schedule, plumbing fixtures that leak, and finishes that don’t match the samples you approved.

If the issue traces to a manufacturer defect, we handle the warranty claim coordination. You don’t chase Abodu for a window seal or James Hardie for a siding batch variation. We do. That’s the point of a single contract.

If you’re not satisfied with how we’re handling the fix, Nadia Ellery gets involved directly. Not as escalation theater. As the owner who signs the checks and answers for the crew. We’ve operated this way since 2015 because it’s simpler than the alternative.

Before

After

Licensed & Insured Backing

The 365-Day Done Right Promise is only as solid as the business behind it. We’re licensed and insured, which means there’s a state-monitored entity with assets and accountability standing between you and an empty guarantee. Our license number appears on every page of this site. You can verify it with the California Contractors State License Board. We carry general liability and workers’ compensation coverage, so if a crew member is injured on your Garden Grove property, you’re not exposed.

Insurance also protects your project during construction. If a storm hits while your detached ADU is framed in, or a water line we didn’t know about ruptures during garage conversion excavation, the policy covers the remediation. Not your homeowner’s insurance. Not your emergency fund. Ours.

We’ve been design-build since 2015. We’ve completed 900-plus ADUs. Every one started with a written price and ended with a documented photo record. That track record is the real guarantee. The paper just makes it enforceable.

How Our Guarantee Compares to Typical ADU Contracts

Free Second Opinion: Test Our Guarantee Against Any Written Estimate

Already have a written estimate for your Garden Grove ADU project? We’ll review it free. Not to undercut by hiding costs we’ll add later. To show you what Haven Standard pricing looks like when every line item is defined and the total is locked. Bring us a competitor’s written scope and we’ll flag what’s vague, what’s missing, and where the numbers might shift once you’re committed. No obligation. If you go with the other contractor, at least you’ll know what questions to ask when their “final” invoice arrives.

Frequently Asked Questions