We're here to help

Darien 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 Darien.

We have served over 197 customers in Darien, Illinois and over 7,225 customers in the surrounding Dupage County area.

Schedule Appointment
Furnace Installation

A Service Company You Can Trust

Years of Experience

Customers Served

Customers Served

128,072 Customers Served in Illinois and Wisconsin

7,225 Customers Served in Dupage County

197 Customers Served In Darien

Zip codes served: 60561

CUSTOMER REVIEWS Near Darien, Illinois

Satisfied Lindemann Customers

Quote Icon
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

Read Full Review

Quote Icon
Star Full Star Full Star Full Star Full Star Full

Stephen R. was the technician that serviced my A/C unit and he did a great job. He was very thorough, informative, and he patiently answered all my questions. I would be very happy to have him out for future appointments.

Josh H · May 9, 2025 Customer Review

Read Full Review

Lindemann Review Slider Image
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

Read Full Review

Quote Icon
Star Full Star Full Star Full Star Full Star Full

What a great experience I had with this crew. Friendly, efficient and clean! Brandon, Anthony and James were the reason for this 5 star review! Even though the temperature is warming up, I can’t wait to use my cleaned and repaired wood burning fireplace Lindemann Fireplace is now the only Chimney company I will be […]

Linda R · March 25, 2025 Customer Review

Read Full Review

Quote Icon
Star Full Star Full Star Full Star Full Star Full

Very pleased. easy to schedule. technicians were professional, kind and informative. plan on being a return customer :). thanks, team Lindemann!

Kevin L · April 4, 2024 Customer Review

Read Full Review

Quote Icon
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

Read Full Review

Quote Icon
Star Full Star Full Star Full Star Full Star Full

Great company and fantastic service!! Extremely knowledgeable!!

Chandler C · January 30, 2024 Customer Review

Read Full Review

Quote Icon
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

Read Full Review

Darien, Illinois Services

Heating & Cooling

Heating & Cooling

Trusted by Our Customers in Darien, Illinois

Darien’s cold winters and warm, humid summers demand an HVAC system that can switch modes efficiently. Regular maintenance and targeted upgrades help keep energy bills in check and homes consistently comfortable.

  • Seasonal Checkups – Have furnaces serviced in fall and air conditioners checked in spring.
  • Energy-Efficient Upgrades – Multi-stage heating and cooling equipment handle temperature extremes effectively.
  • Thermostat & Zoning Controls – Zoning controls optimize performance by heating or cooling only occupied areas.
  • Indoor Air Quality Enhancements – Air purifiers or dehumidifiers tackle humidity and indoor pollutants.
  • Upgrading Older Systems – Replace outdated units for improved efficiency and reliability.
  • Allergies & Air Quality – Frequent filter changes reduce dust, pet dander, and mold spores.
  • Emergency Repairs – Keep a trusted HVAC contact on call for sudden malfunctions.