
Built off-site. Built to last.
We started HRG Prefab to make adding real, livable space to a property faster and more predictable than traditional construction, without cutting corners on quality.
A factory-first approach to home additions
HRG Prefab, a division of The Home Remodel Group, was founded by builders who were tired of seeing good projects stall out on weather delays, subcontractor scheduling, and on-site rework. We moved the build indoors.
Every HRG unit, whether it's a detached backyard ADU or an attached suite, is framed, wired, insulated, and finished in our climate-controlled facility under consistent quality control, then transported and set on your property once your site and foundation are ready.
The result: fewer surprises, a tighter timeline, and a finished space that holds up the same way whether it was built in July or January.

The principles behind every build
Built to Code, Every Time
Engineering and permitting are handled in-house so every unit clears inspection the first time.
Honest Timelines
We quote realistic schedules and communicate early if anything on-site changes the plan.
Quality That Doesn't Vary
Factory conditions mean the same materials and process on unit one and unit one hundred.
Builders, designers, and project managers under one roof
Our in-house team covers architectural design, structural engineering, manufacturing, and on-site installation, so you have one point of contact from first sketch to final walkthrough, not a chain of subcontractors.
We work in close partnership with local jurisdictions to keep permitting moving and make sure every unit is fully compliant with your area's ADU and zoning requirements.
120+
Units Installed
14
Years Building
98%
On-Time Delivery