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Knollwood AC, Furnace & Boiler Services

Lindemann provides full-service furnace, water heater, and air conditioning repair, maintenance, and installation. We also service boilers, provide indoor air quality checks, and annual safety checks to our customers in Knollwood.

We have served over 15 customers in Knollwood, Illinois and over 42,213 customers in the surrounding Lake County area.

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Furnace Installation

Customers Served

128,072 Customers Served in Illinois and Wisconsin

42,213 Customers Served in Lake County

15 Customers Served In Knollwood

Zip codes served: 60044

CUSTOMER REVIEWS Near Knollwood, Illinois

Satisfied Lindemann Customers

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Star Full Star Full Star Full Star Full Star Full

Steve R. And James T. installed new furnace and ac units. They were fantastic! Very friendly and knowledgeable.

Lori D · May 30, 2025 Customer Review

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Star Full Star Full Star Full Star Full Star Full

Thomas K. is great. Has serviced my furnace and installed a new water heater. Today he serviced my AC as part of my maintenance plan. Here are before and after pictures. Will always ask for Thomas and use Lindemann in the future.

Joan D · May 2, 2025 Customer Review

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Star Full Star Full Star Full Star Full Star Full

Thanks for keeping our house warm with your usual good service!

June Z · March 29, 2024 Customer Review

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Star Full Star Full Star Full Star Full Star Full

Our Bryant Evolution thermostat sent us a few error codes in January. I think they were caused by snow sliding off the roof onto the heat pump outdoor coil, blocking its fan, but I asked Lindemann to come check it out, and try to avoid a critical failure during bad future weather. We have an […]

Evan C · January 25, 2024 Customer Review

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Star Full Star Full Star Full Star Full Star Full

Your technician was knowledgeable , efficient and very congenial. I will call your company again and have already referred your company to friends. Thank You jobs are well done.

James N · January 23, 2024 Customer Review

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Star Full Star Full Star Full Star Full Star Full

Very professional and nice! They truly care about getting back to you on a timely matter! I will recommend Lindemann to family and friends! Thank you again

Albertina F · January 15, 2024 Customer Review

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Star Full Star Full Star Full Star Full Star Full

Thomas did a great job installing our water heater. It was not working as well as we would like. Thomas came out the next business day and checked on the unit and installed a separate disconnect for free. I will be giving them more business in the future.

Carol D · November 6, 2023 Customer Review

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Star Full Star Full Star Full Star Full Star Full

What an awesome team of professionals. They not only pointed out some issues, but did a great job during inspection and Tune-up. On top of it, he noticed my sump pump was not working, which saved me a future headache. If you are looking for a great team to work with regardless HVAC and chimney, […]

Anthony B · October 31, 2023 Customer Review

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Knollwood, Illinois Services

Heating & Cooling

Heating & Cooling

Trusted by Our Customers in Knollwood, Illinois

Knollwood’s chilly winters and mild summers require an HVAC system that transitions smoothly between heating and cooling. Regular maintenance and practical upgrades maintain comfort without spiking utility costs.

  • Seasonal Checkups – Service furnaces in fall and AC units in spring to ensure efficiency.
  • Energy-Efficient Upgrades – Invest in modern equipment that quickly adapts to changing weather.
  • Thermostat & Zoning Controls – Zoning your home prevents unused areas from driving up bills.
  • Indoor Air Quality Enhancements – Use advanced filters or humidity management to curb allergens.
  • Upgrading Older Systems – Replace outdated units to lower the risk of in-season breakdowns.
  • Allergies & Air Quality – Clean filters regularly to combat dust, mold, and pet dander.
  • Emergency Repairs – Keep a professional’s number for quick solutions in extreme temperatures.
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