Generators Contractors in Rockville, Maryland
Standby and portable generator installation and service..
Rockville is Montgomery County's seat with established neighborhoods and strong contractor demand.
Whole-home standby generators automatically provide backup power during outages, protecting against food spoilage, frozen pipes, sump pump failure, and loss of medical equipment. Natural gas or propane-fueled standby generators (typically 12–24 kW for residential use) start within seconds of a power outage via an automatic transfer switch. Installation involves an electrical subpanel or whole-house transfer switch, a concrete pad, gas line connection, and compliance with setback and noise ordinances. Portable generators serve as a lower-cost option for partial backup but require manual setup and fuel management.
27
Listed contractors
$5k–$18k
Typical cost
What to look for when hiring a generators contractor
- ✓Ask the installer to perform a load calculation to properly size the generator for your home.
- ✓Confirm the estimate includes the transfer switch, concrete pad, gas line, and all permits.
- ✓Ask about warranty terms — most major brands offer 5-year limited warranties.
- ✓Verify the installer is authorized by the generator manufacturer (Generac, Kohler, Briggs & Stratton).
Generators contractors in Rockville(27 listed)
How much does generators cost in Rockville?
Portable generator: $500–$2,000. Standby 12 kW: $5,000–$8,000 installed. Standby 22 kW: $8,000–$15,000 installed. Transfer switch adds $500–$1,500 if not included.
Generators contractors in Rockville — FAQ
How many generators contractors are in Rockville?
EdgeLocal lists 27 licensed generators contractors in Rockville, Maryland. All listings are sourced from state licensing registries.
What is the average rating for generators contractors in Rockville?
Generators contractors in Rockville are listed on EdgeLocal with ratings sourced from Google Business profiles. Use the directory to compare rated contractors near you.
Do generators contractors in Rockville need to be licensed?
Yes. Maryland requires generators contractors to hold a valid state license. Always verify a contractor's license is current and in good standing before signing any contract or allowing work to begin.
How do I find a reliable generators contractor in Rockville?
Start by verifying the contractor holds a valid Maryland license. Check their Google rating and read reviews. Get at least three written estimates. Confirm they carry general liability and workers' compensation insurance. Ask for references from recent Rockville jobs.