If there is an insufficient pool of skilled labor for home building, you minimize problems in trying to find and train workers. Prefab components reduce the danger of cost overruns, because the preconstruction price is guaranteed by the manufacturers. Buying materials in large quantities and centralizing labor and design skills can save money. There is greater potential for quality control because of standardized manufacturing procedures and factory-based inspections. Using accurate equipment to build components generally guarantees a high standard of accuracy and quality.
Many manufacturers provide comprehensive product warranties.
Indoor production almost eliminates interruptions from inclement weather and losses from vandalism. This is particularly true with modular homes. Building-site limitations, including the site not being readily accessible by trucks and cranes needed for erection. A lack of familiarity with industrialized techniques in certain municipalities, which complicates and extends the building approval process. Community resistance based on outdated perceptions of factory-built units.