What San Francisco Homeowners Say About Sutton ADU San Francisco
Reviews tell you what a brochure can’t. They show whether the written price stayed written, whether the crew showed up with a photo badge and a uniform like we said they would, and whether the 365-Day Done Right Promise actually means something after the final inspection. We’ve been building ADUs and room additions in San Francisco since 2006, and we earn every review the same way: by putting a fixed number on paper before work starts, and then standing behind the finished structure for a full year. Here’s what homeowners in neighborhoods like the Sunset, Excelsior, Bernal Heights, and Bayview have told us about their projects.
Recent Reviews
We hired Sutton ADU San Francisco for a detached one-bedroom ADU in the Inner Sunset. Miles walked the lot with us before quoting and flagged a setback issue with the rear property line that two other contractors missed. The written price we got before work started matched the final invoice to the dollar. The crew finished the exterior cladding in James Hardie siding and it looks sharp against the fog-gray paint on our main house. No surprises, no change orders snuck into the bill.
Ramon M.
Inner Sunset, San Francisco
Our garage conversion in the Excelsior had a tricky sewer lateral that needed re-routing. Sutton’s team put the full scope in writing before demolition started, including the underground work. When the inspector flagged a venting detail, the crew came back and fixed it without any haggling. That free second visit is real. A year later, everything still works and drains properly.
Rafael R.
Excelsior, San Francisco
We researched prefab ADUs for months before calling. The team at Sutton actually knew the Abodu and Cover product lines, not just names on a brochure. They walked us through why a panelized Dvele build made sense for our narrow Bernal Heights lot, and the pricing conversation was refreshingly direct. The written quote we received before committing covered the site prep, foundation, and utility hookups. The build went up faster than a stick-frame addition would have.
Kevin Y.
Bernal Heights, San Francisco
I’m a general contractor by trade, so I watched their crew closely on our Bayview room addition. Every tech who showed up had a photo badge and wore a clean uniform, and the office sent their name and photo before they arrived. The framing passed inspection on the first visit, which doesn’t happen by accident. When a window seal failed nine months after completion, a technician came out, replaced it under the 365-Day Done Right Promise, and charged us nothing.
Doug M.
Bayview, San Francisco
The upfront written price was the reason we chose Sutton ADU San Francisco over two other builders. One competitor gave us a range so wide it was meaningless. Another wanted a deposit before producing detailed line items. Sutton gave us a fixed number for a two-bedroom ADU with a James Hardie exterior, and that number did not move from pre-construction to final walkthrough. The city permitting process in San Francisco was slow, but Miles kept us informed at every permit review stage.
Ramon M.
Outer Sunset, San Francisco
We converted a Tuff Shed structure into a permitted home office and guest room in the Richmond District. The team knew exactly what San Francisco’s planning department would require for a legal conversion, including insulation upgrades and the electrical panel work. The crew arrived on schedule, worked clean, and the project passed final inspection without a single correction notice. Nine months in, we had a small issue with a door alignment and Sutton sent someone out the same week at no cost.
Kevin Y.
Richmond District, San Francisco
Why Customers Trust Us
These reviews don’t happen by accident. They trace back to the Threshold Standard, which is the system every Sutton ADU San Francisco project operates under. Before any work begins, you receive a written price. Not an estimate with caveats, not a ballpark figure. A fixed number in writing. Every technician who steps onto your San Francisco property has been background-checked, identity-verified, and photo-badged, and we send their name and photo to you before they arrive. They show up in a clean, marked uniform and present a photo ID at your door. The 365-Day Done Right Promise covers defects in workmanship for one full calendar year from project completion. If something isn’t right, Sutton makes it right. And if a repair or element of the build fails, a free second visit is written into the agreement. That’s how Miles Hartwell, Owner of Sutton ADU San Francisco, has operated the business since 2006. When you’re ready to talk about an ADU on your lot, call (831) 272-7212. We’ll walk your property, give you a written price, and let you decide from there.
Written by Miles Hartwell, Owner at Sutton ADU San Francisco, serving San Francisco since 2006.
