ADU Specials in Fontana, CA
We run these offers year-round because Fontana homeowners deserve to know what an honest ADU quote looks like before they sign anything. Call (909) 637-3715 to schedule your free estimate and mention whichever offer fits your project. Every price we give is written, line-itemed, and locked before work starts - Haven Standard Clause 1, no exceptions.
Current Offers
Free Second Opinion on Any Written ADU Estimate
Already have a quote for a garage conversion, detached ADU, or JADU in Fontana? We’ll review it against current San Bernardino County permit fees, structural requirements, and utility tie-in costs - at no charge. Nadia Ellery or one of our design-build leads will walk through the line items with you and flag anything that looks inflated, omitted, or non-compliant with Fontana’s 2024 zoning updates. Valid through December 31, 2026. Mention this offer when you call (909) 637-3715.
365-Day Done Right Promise - Locked in Writing at Signing
This isn’t a discount; it’s a guarantee no other Fontana ADU builder puts in the contract. Under Haven Standard Clause 5 (No Surprises), if your finished ADU doesn’t match the permitted drawings, we make it right - period. The promise is documented, signed, and attached to your project file before the first shovel hits the soil in your Southridge or Sierra Lakes backyard. Valid through December 31, 2026. Mention this offer when you call (909) 637-3715.
Documented Photo Record Included on Every Visit - No Charge
Other contractors hand you a checklist or a verbal summary. We deliver dated, geotagged photos of what we found and what we did - foundation prep, framing inspection, utility rough-in, final walkthrough. For Fontana homeowners in the North Fontana corridor or down toward Jurupa Valley, this means you see the 4-inch slab thickness or the setback variance compliance without driving to the site. Valid through December 31, 2026. Mention this offer when you call (909) 637-3715.
Written Price Before Any Work Starts - Haven Standard Clause 1
We don’t do “call for a quote.” Every Fontana ADU project, from a 400-square-foot Junior ADU on Oleander Avenue to a full 1,200-square-foot detached unit near Summit Avenue, gets a written, line-itemed price before you sign. If the scope doesn’t change, the price doesn’t change. No door-side upsells, no “we found an issue” add-ons after demo. Valid through December 31, 2026. Mention this offer when you call (909) 637-3715.
Live Person Answers 24/7 - No Voicemail, No Callback Lottery
Call (909) 637-3715 at 10 PM on a Tuesday or 6 AM on a Sunday. A real person picks up, takes your information, and schedules your free estimate. For Fontana homeowners juggling shift work at the Auto Club Speedway logistics hub or running a business out of the Bloomington corridor, this means you don’t lose a day playing phone tag. Valid through December 31, 2026. Mention this offer when you call (909) 637-3715.
One-Contract Design-Build - No Designer vs. Builder Finger-Pointing
Most Fontana ADU projects fail at the handoff between the architect who drew the plans and the contractor who claims “that’s not how I’d build it.” Our single contract covers ADU Design & Permitting, construction, site prep, and utilities. One written price. One point of contact. One crew, background-checked and uniformed, from first site measure through final Fontana Building Division sign-off. Valid through December 31, 2026. Mention this offer when you call (909) 637-3715.
How to Redeem
Step 1: Call (909) 637-3715 and mention the offer you want to use. A live person will answer, confirm the details, and schedule your free estimate.
Step 2: We visit your Fontana property, take measurements, assess existing structures or site conditions, and deliver your written, line-itemed quote within 48 hours.
Step 3: Present a printed or digital copy of this page at your project kickoff meeting. The offer language is attached to your contract file and governs every phase of work.
No codes to forget, no expiration anxiety beyond December 31, 2026, and no “surprise - that offer doesn’t apply to your project type.” If we listed it here, it applies to every ADU service we provide in Fontana: ADU Design & Permitting, Garage Conversion ADU, New Detached ADU, Junior ADU & Interior Conversion, and ADU Site Prep & Utilities.
Before
AfterWhat These Offers Don’t Cover (Because We Won’t Pretend They Do)
We don’t manufacture urgency. There are no “only 3 slots left this quarter” countdowns on this page. San Bernardino County permit timelines fluctuate based on submission volume, not our marketing calendar. We don’t offer percentage discounts off inflated base prices - Haven Standard Clause 1 forbids it. And we don’t promise same-day construction starts; ADUs require engineered plans, permit review, and scheduled inspections. What we do promise is that the price you sign is the price you pay, the photos prove what happened, and Nadia Ellery’s name is on the contract if something needs making right.
Written by Nadia Ellery, Owner at Ellery ADU Studio Fontana, serving Fontana since 2015.