Joliet Electric Motors, LLC.
Verified Pro
~27 years online4.6(6)
Generator Installation in Joliet, IL
Compare 22 generator installation contractors near you in Joliet and surrounding area with an average rating of 4.3/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 22, 2026
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Verified Pro Installers
Other Businesses in This Area
Custom Power Electric
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4.6Oakwood Electric & Generator
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4.524½+ years onlineBuckeye Power Sales
4.528½+ years onlineEnginemasters Inc.
4.321½+ years onlineRob - Lynn Power Generators, LLC
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4.2~16 years onlineGet Power Now!
3.9Power Equipment Direct
3.523½+ years onlineAdvanced Generator Sales
3.0~19 years onlineTIMM, Inc.
2.8Emergency Power Solutions, Inc.
1.016½+ years onlineGenerator Installation in Nearby IL Cities
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About Generator Installation in Joliet
Generator installation ranges from portable transfer switch setups to whole-home standby generators that start automatically during power outages. Standby generators connect to your electrical panel and run on natural gas or propane.
Typical costs: A transfer switch for a portable generator costs $500–$1,500 installed. Whole-home standby generators (Generac, Kohler) typically run $5,000–$15,000 fully installed including the concrete pad, gas line, and electrical connections.
Common projects include:
- Whole-home standby generator installation
- Transfer switch installation for portable generator
- Generator maintenance and load testing
- Natural gas line connection for generator
- Commercial backup power systems
Standby generator installations require electrical permits and often gas or plumbing permits for the fuel line. Some areas also require noise or setback compliance.
Frequently Asked Questions
- How much does generator installation cost in Joliet?
- A whole-home standby generator (14–22 kW) with automatic transfer switch typically costs $5,000–$15,000 installed. The unit itself is roughly half the cost — installation includes the concrete pad, gas line, electrical hookup, and permits.
- How do I find a reliable generator installation contractor in Joliet?
- Choose an installer authorized by the generator manufacturer (Generac, Kohler, Briggs & Stratton). They should perform a load calculation to properly size the unit, not just recommend the biggest one. Ask about warranty terms and annual maintenance plans.
- Do I need a permit for generator installation in Joliet?
- Yes — standby generators require electrical permits and typically gas or plumbing permits for the fuel connection. Your installer should handle all permit applications and coordinate inspections.
About NeedInstall
NeedInstall helps connect customers with local installation professionals across Joliet and surrounding communities. Featured contractors have claimed their profile and verified their business information. Listings marked as "Verified Pro" have been confirmed by the business owner.