Waterloo, IL, HVAC Companies & Repair

HVAC Companies in Waterloo. For nearly a century, Weis Heating and Cooling, an experienced Waterloo, IL HVAC company, has provided customers high quality and affordable heating and cooling repair services. Our HVAC contractors utilize industry-leading techniques and top brands to optimize heating, vacuum, and air conditioning units' reliability and efficiency.

As one of the preferred HVAC companies in Waterloo, IL, Weis delivers high-quality service in a variety of areas. Waterloo HVAC repair calls for trained professionals with the right tools, experience, and commitment to safety. Providing Waterloo homeowners and businesses with unbeatable pricing and quality work, our services include:

Providing these services and others, Weis is one of the most customer-friendly HVAC companies in Waterloo, IL. We will discuss more about our capabilities and services throughout this page. As always, please contact us for additional information.

HVAC Companies in Waterloo, IL

For those who are Waterloo home or business owners, it's important to have a seasoned HVAC contractor on hand. Weis Heating and Cooling is a convenient, flexible, and local HVAC repair and installation company that serves Missouri and Illinois clients. Another reason Waterloo property owners prefer Weis is our flexible long- and short-term financing options.

Weis Heating and Cooling is willing to assist replace, maintain, or upgrade your HVAC systems. Our staff are trained, factory-certified professionals that can answer any questions you might have about Weis Comfort Systems HVAC repair and installation services. Get more info and a service quote today.


Waterloo HVAC Companies like Weis Comfort Systems understand how difficult it is for some homeowners to manage HVAC repairs. Below you will find a maintenance checklist to provide you with a few go-to checks and tasks to keep your heating, cooling, and other systems working:

  • Check thermostat to make sure the HVAC system stays at a comfortable and reasonable level. Property owners can reduce power bills by investing in automated thermostats to keep their homes warm in the winter and cool in the summer, and even turn on at set times to lower energy consumption.
  • Check electrical connections. You can also measure currents and voltages of a system's motors. Faulty electrical connections may result in unsafe operation, poor efficiency, and even electrical fires. Waterloo HVAC companies like Weis Heating and Cooling point out that poorly-functioning equipment lowers a systems' life expectancy. Also check all of the HVAC system's controls and oil/gas connections.
  • Lubricate all moving parts. "Dry" parts cause friction and rust. This may result in increased workload and further reduces a system's efficiency. Go ahead and call Weis Comfort Systems for more information about HVAC maintenance in Waterloo.
  • Check the condensate line. Your air conditioner unit handles water. Ask your AC contracting company about this step or view these guidelines on American Home Shield.

It is important to care for and monitor your heating and cooling systems. Weis Comfort Systems, one of the top HVAC companies in Waterloo, is here to help customers maintain these systems to improve efficiency, reduce costs, and increase longevity. Besides, who wants to encounter a heating or cooling issue in the middle of summer or winter? Call us to learn more or request service.

Weis Comfort System recommends home and property owners to schedule seasonal HVAC maintenance checkups to avoid serious issues. If you're looking for HVAC companies in Waterloo, IL, give us a call. (618) 205-9540

Waterloo, IL, HVAC Companies | Why Choose Weis?

For Waterloo HVAC companies, reputation is everything. The expert Waterloo HVAC contractors at Weis Comfort Systems have proven their dedication to service over the years as a top choice for home and business owners in need of HVAC repair and maintenance. You can trust us to protect your home and family's HVAC interests. Learn more about our past service in these responses and HVAC contractor reviews. Below you can find a few of the goals we follow to ensure we are your Waterloo HVAC company of choice:


A leading Waterloo HVAC repair contractor, Weis knows the value of quality service. We hope to provide the best in the business including certified HVAC contractors, efficient and safe brands, and no hassle work.


Weis Comfort Systems understands financial constraints put on business and home owners. Weis accepts major credit cards (Mastercard, Visa, etc.), checks, and cash. Learn more about our pricing and financing for AC installation, boilers replacement, maintenance, and other services. Weis also offers rebates and coupons.


Weis relies on state-of-the-art products, practices, and safety measures in addition to hiring methods that ensure high-quality HVAC contractors with experience, solid backgrounds, and other skills. Safety is a cornerstone of our Waterloo HVAC company.


Our team of highly-qualified, local HVAC contractors in Waterloo, IL, guarantee affordable, timely, no-hassle AC and furnace repair and installation. Let Weis Heating and Cooling know how we can help. Request service now.

Contact Your Waterloo HVAC Contractor Today

As customers come to find out, Weis is one of the top HVAC companies in Waterloo, IL. We provide homeowners with HVAC maintenance, installation, and repair while keeping service as a priority. Contact Weis Comfort Systems today for more information about our Waterloo HVAC contractors and services.