Repair or Buy Now and Save


Have a NEW Furnace or A/C installed now and get $100 OFF YOUR INSTALLATION!


Glossary of HVAC Terms

SEER Rating: The higher the SEER rating, the more efficient 
the unit operates & the more you will save on cooling bills!

Contact Us:

Office: 11509 W 121st Place, Cedar Lake, IN 46303-9767
Phone:(219) 374-9830

24-HOUR SERVICE: (708) 758-0588

Furnace Cleaning & Inspection Discount Offer
Trane Furnaces & Air Conditioners
Broan Heating & Cooling Systems

Our Services

Northwest Indiana Heating Service

Making Your Home or Office Comfortable, Warm & Cozy.
That’s Our Service

Heating your home doesn’t have to be costly, cumbersome or a risk to your health. Our trained experts offers furnace repair services and home furnace installation options with great benefits… Continue reading

Northwest Indiana Cooling Services

We Help Keep Your Home Cool Without High Energy Bills

Here at Williamson Heating and Cooling Services, we offer expert air conditioning repair services and cooling equipment options for every need. Our family of professional technicians furnish and install both… Continue reading

Indoor Air Quality

Chicago & Northwest Indiana’s Indoor Air Quality Solutions

According to the Environmental Protection Agency (EPA), the air inside the average home can be up to five times more polluted than the air outside. Yet the average person spends up to… Continue reading