Ace Electric
Verified Pro
15½+ years online5.0(6)
Generator Installation in Madison, WI
Compare 19 generator installation contractors near you in Madison and surrounding area with an average rating of 4.7/5. Get free quotes, read reviews, and find the right pro for your project.
Last updated March 23, 2026
Most pros respond within 2–24 hours
Verified Pro Installers
thenewaceelectric.com
Alpine Power Systems
Verified Pro
28+ years online5.0(1)
Quality Power Solutions
Verified Pro
~24 years online5.0(4)
Home Backup Systems, LLC
Verified Pro
5+ years online4.9(45)
Richland Home Power
Verified Pro
4+ years online4.9
Other Businesses in This Area
Badger Electric, Inc
5.0~21 years onlineFarr Services
5.06+ years onlineHelping Hands Electric
4.914½+ years onlineMidwest Electric & Generator, LLC
4.915½+ years onlineParks Electrical Service Inc.
4.917+ years onlineThe Electrician, Inc
4.919+ years onlineAll Comfort Services
4.821½+ years onlineN & N Electric
4.812½+ years onlineBadger Electric, Inc.
4.7~21 years onlineEngine Generator Specialties
4.018+ years onlineHill Electric Inc.
3.915½+ years onlineGenerator Installation in Nearby WI Cities
Other Services in Madison
Access Control & Intercom(42)Alarm System Installation(23)Appliance Installation(20)Artificial Turf Installation(30)Concrete & Paving(34)Deck & Patio Building(25)Electrical Services(20)EV Charger Installation(7)Fencing & Gate Installation(23)Fire Protection & Sprinklers(25)Garage Door Installation(22)Heat Pump Installation(22)
About Generator Installation in Madison
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 Madison?
- 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 Madison?
- 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 Madison?
- 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 Madison 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.