Green Titans EnergyGreen Titans Energy

Comfort. Efficiency. Guaranteed.

A minority-owned heating, cooling and weatherization contractor based in Sauget, Illinois.

Green Titans tech air-sealing at the base of a wall
Photo: Crew air-sealing a rim joist or attic bypass
Nick Johnson, owner of Green Titans Energy
Photo: Portrait of Nick Johnson, owner (from Drive: 'Nicholas Johnson Green Titans Energy Owner.jpg')
Nick Johnson, owner

Meet Nick Johnson.

Nick Johnson owns Green Titans Energy, a minority-owned heating, cooling and weatherization company based in Sauget. His approach is simple: the right fix, not the biggest invoice. The company is licensed, bonded and fully insured.

We started Green Titans Energy so families and building owners in our community could have efficient, comfortable buildings, not only the people who can afford the most expensive equipment. We recommend what fits the house and the budget, and we point you to programs that lower the cost.

Our technicians are certified mechanics with years in the field, trained to treat the equipment and the building as one system.

Minority-owned, licensed, bonded and fully insured.

BBB A+ rated and a registered Ameren Illinois Program Ally participating in HEIQ, Smart Savers and the Mobile Home Initiative.

Green Titans tech working in a crawlspace
Photo: Green Titans crew and truck at a job site

Local crews

Based in Sauget, working across the Metro East and St. Louis.

Green Titans tech loading an AttiCat blown-in insulation machine
Photo: Attic with fresh blown-in insulation, depth ruler visible

Whole-building approach

Equipment and envelope treated as one system.

Blower door test set up in a front doorway
Photo: Blower door test set up in a front doorway

Tested, not guessed

Load calculations and testing before and after the work.

Green Titans tech wiring a wall thermostat
Photo: Smart thermostat on a wall, hand adjusting it

Program paperwork handled

We help you apply for the Ameren Illinois programs you qualify for.

Where we work

St. Clair County, IL

Sauget, East St. Louis, Belleville, O'Fallon, Fairview Heights, Cahokia Heights and nearby.

Madison County, IL

Granite City, Collinsville, Edwardsville, Alton and nearby.

St. Louis City and County, MO

Repairs, installs and weatherization. Ameren Illinois programs don't apply in Missouri.