Showing 9 of 9 installers. Check the box on any installer below to compare a few side by side or request quotes directly from the ones you pick.
1st Choice Electrical Service is a licensed EC (Electrical Contractor) based in Longmont, CO, serving Boulder County and Northern Colorado. Specializes in KOHLER home standby generator installation, with 200+ generator installations and over 50 years of combined team generator experience.
- Fuel types
- Natural gas, Propane
- License #
- 101587
- Services
- Generator Installation
- Service area
- Longmont, Boulder County, and Northern Colorado, including the Denver metro area
Aaark Heating & Air Conditioning (d/b/a AAARK Heating, Air & Plumbing) is a Colorado-licensed electrical contractor (License #3656, Status: Active) based in Denver, in business since 1984, offering sales, installation, replacement, service, and repair of residential and commercial standby generators.
- License #
- 3656
- Services
- Generator Installation, Generator Repair
- Service area
- Serving the Denver, Colorado metro area.
Allen Plumbing and Heating LLC is a Colorado-licensed Electrical Contractor (License #102432, Status: Active) based in Fort Collins that installs, services, and maintains home standby generators in Denver and Northern Colorado, handling the transfer switch, permits, and startup alongside its plumbing, heating, and cooling work.
- Fuel types
- Natural gas, Propane
- License #
- 102432
- Services
- Generator Installation, Generator Maintenance Plans, Generator Permitting Help
- Service area
- Serving the Fort Collins, Colorado area.
Brothers Plumbing Heating Electrical is a Colorado-licensed electrical contractor (License #7510, Status: Active) based in Denver, family-owned since 1980, offering whole-house standby Generac generator installation, replacement, and maintenance for Denver-area homeowners.
- Fuel types
- Propane
- License #
- 7510
- Services
- Generator Installation, Generator Maintenance Plans
- Service area
- Serving the Denver, Colorado metro area.
Electric Doctor is a licensed EC (Electrical Contractor) based in Englewood, CO, providing standby generator sales and installation across the Denver metro area since 1995. It is listed in Generac's official dealer locator as a Select dealer (checked October 2, 2026).
- Fuel types
- Natural gas, Propane
- License #
- 4206
- Services
- Generator Installation
- Service area
- Denver and the greater Denver metro area
Generator Supercenter of Denver is a licensed EC (Electrical Contractor) based in Parker, CO, specializing in Generac whole-home generator installation and repair, and also services generators of other makes and models regardless of who originally installed them.
- Fuel types
- Natural gas, Propane
- License #
- 102819
- Services
- Generator Installation, Generator Repair
- Service area
- Denver and the greater Denver metro area
Mighty Plumbing Heating Air Electric LLC holds an active Colorado electrical contractor license (CO DORA 102648) and is based in Denver. It is listed in Generac's official dealer locator for home standby generators as a Select dealer (checked October 7, 2026).
- Fuel types
- Natural gas, Propane
- License #
- 102648
- Services
- Generator Installation
- Service area
- Based in Denver, CO 80239.
Mighty Plumbing, Heating, Air & Electric is a Colorado-licensed Electrical Contractor (License #102648, Status: Active) based in Denver, installing and servicing whole-home standby generators with transfer switches alongside plumbing, HVAC, and electrical work.
- Fuel types
- Natural gas, Propane
- License #
- 102648
- Services
- Generator Installation
- Service area
- Serving the Denver, Colorado area.
The Electricians is a licensed EC (Electrical Contractor) based in Centennial, CO, serving the Denver metro and Front Range, and is listed in Generac's official dealer locator as a Select dealer (checked October 2, 2026). Installs Generac Guardian and Protector series generators on natural gas, propane, or diesel.
- Fuel types
- Natural gas, Propane
- License #
- 101962
- Services
- Generator Installation
- Service area
- Denver, Centennial, Highlands Ranch, Aurora, Littleton, and the greater Front Range
