A general contractor will need to hire a number of sub contractors to complete the site work to build your home. Some of the sub contractors you will need to hire include:
Engineers and Architects
The general contractor will need to hire a local PE or architect to complete foundation drawings. At times you will be required to hire an environmental engineer to insure your home’s excavation does not interfere with wetlands or neighboring building lots.
You will need an excavator to dig your modular homes foundation, clear the building site, back fill the foundation and complete both rough and final grading. In addition, your excavator can remove or add soil to your building site as required to build your home.
Your modular home will require a foundation, either a crawl space or full basement or pilings for your home. The foundation company could install block walls, poured walls, a wooden foundation, precast wall system or insulated concrete forms for your modular homes foundation.
Modular homes are delivered with the plumbing stubbed through the first floor of the home. Homes with two stories will need to have plumbing connections completed in access panels in the modular homes ceiling or floors. Plumbers will also install waste lines for sewage and the modular homes water heating system.
After modular homes are set on the foundation, 95% of the electrical work is completed. The last five percent or so of electrical work will include wiring the panel box, connecting the main power source to the panel box and any interconnection between modules.
Most modular homes come standard with electric baseboard heating. Unfortunately, most people building a modular home desire to have forced air heating and cooling systems or hot water radiant heating systems. If you are opting for a forced air system for your modular home, your HVAC contractor will install the heating and cooling system and also any required duct work.