Find Prefab and Modular ADU Contractors
Prefab ADUs are factory-built modular units delivered to your property and installed on-site. They offer 30–50% faster timelines than traditional builds, with costs starting at $80,000 installed.
3,311 contractors found
About Prefab ADU
Prefabricated ADUs are the fastest-growing segment of the ADU market, capturing over 50% of new installations. Factory-built ADUs offer consistent quality, faster construction (8–16 weeks on-site), and often lower costs than stick-built alternatives. Also called modular ADUs, these units are manufactured off-site and assembled on your property.
Typical Cost Range
$80,000 – $250,000
Timeline
8–16 weeks on-site
Prefab ADU Pros and Cons
Pros
- +Fastest construction — 8–16 weeks on-site
- +Consistent factory quality control
- +Often lower cost than traditional stick-built ADUs
- +Less on-site disruption during construction
Cons
- –Less design customization than stick-built
- –Delivery access — requires crane or truck access to your lot
- –Foundation and site prep still needed
- –Permit process is the same as traditional ADUs
Browse Prefab ADU Contractors by State
Top Cities for Prefab ADU
Top Rated Prefab ADU Contractors
Joseph Corlett, LLC
Sarasota, FL
Joseph Corlett, LLC — licensed ADU contractor in Sarasota, FL.
Schick Construction, LLC
Orlando, FL
Schick Construction, LLC — licensed ADU contractor in Orlando, FL.
Fortified Structures Group LLC
Orlando, FL
Fortified Structures Group LLC — licensed ADU contractor in Orlando, FL.
Premiere Builders
Tampa, FL
Premiere Builders — licensed ADU contractor in Tampa, FL.
Ecobuild Group Inc
Jacksonville, FL
Ecobuild Group Inc — licensed ADU contractor in Jacksonville, FL.
Innovative Mitigation and Restoration LLC
St. Petersburg, FL
Innovative Mitigation and Restoration LLC — licensed ADU contractor in St. Petersburg, FL.
SUNFLO CONSTRUCTION GROUP INC
Orlando, FL
Sunflo Construction Group Inc — licensed ADU contractor in Orlando, FL.
Innovative Mitigation and Restoration LLC
St. Petersburg, FL
Innovative Mitigation and Restoration LLC — licensed ADU contractor in St. Petersburg, FL.
Supro Construction and Management LLC
Tampa, FL
Supro Construction and Management LLC — licensed ADU contractor in Tampa, FL.