We provide honest and professional service you can depend on, year after year

Call us today at : (217) 794-3326
Serving Maroa, IL and our neighboring communities

Featured Products

Take preventative measures against viruses, bacteria, and mold in your home


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Nano Induct is your whole house central air purifier. Attached to your furnace, it provides a blanket of air ionization and these charged particles move throughout your environment to neutralize contaminants, germs, mold, viruses, smells and bacteria in the air, throughout your home or office. Take a deep breath knowing the air you inhale and exhale is fresh and clean.”

Bi-Polar® 2400 Whole House Air Ionizer

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“Keep allergens, mold, bacteria, viruses, and VOCs out your of your home or office. The durable Bi-Polar® 2400 is a filterless air purifier using our proprietary Bi-Polar® ionization technology, or “cold-plasma”. It effectively destroys contaminants by as much as 99%. Designed as small as a mobile phone, the Bi-Polar® 2400 is easily installed by a licensed HVAC professional to ensure maximum effectiveness. This whole house air purifier received the highest electrical safety rating, is energy efficient and environmentally friendly.”

Services We Provide


New Construction

Bathroom Remodels

Traditional Water Heaters

Tankless Water Heaters

Return Circulation Loop

Custom Marble Showers


Handicapped Assessable Products

Service, Repairs, and Installation

Boiler Systems

Hot Water Systems

Steam Systems

Service, Repairs, and Installation

Water Conditioning


R.O. Systems



Service, Repairs, and Installation

Heating and Air Conditioning

Conventional Split Systems

Geothermal Systems

Mini Split Systems

PTac Units

Garage Unit Heaters

Infrared Tube Heaters

Ultraviolet Air Purification


Service, Repairs, and Installation

Looking to Build or Remodel?

Browse Holt’s showrooms to choose from

the latest designer products.

You choose and customize, we’ll install. 

Call us today at  (217) 794-3326