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Oswego 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 Oswego.

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A Service Company You Can Trust

Years of Experience

Customers Served

Customers Served

128,072 Customers Served in Illinois and Wisconsin

0 Customers Served in Kendall County

CUSTOMER REVIEWS Near Oswego, Illinois

Satisfied Lindemann Customers

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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

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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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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

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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

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

June Z · March 29, 2024 Customer Review

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Great company and fantastic service!! Extremely knowledgeable!!

Chandler C · January 30, 2024 Customer Review

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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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I use them for my fireplace, furnace, AC at 3 different locations. I will absolutely continue with them!

Jeffrie L · January 24, 2024 Customer Review

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Oswego, Illinois Services

Heating & Cooling

Heating & Cooling

Trusted by Our Customers in Oswego, Illinois

Oswego’s chilly winters and warm summers require an HVAC system ready for quick seasonal transitions. Frequent checkups and energy-savvy upgrades help families maintain comfortable living spaces and tame utility costs.

  • Seasonal Checkups – Inspect furnace and AC equipment before high-demand seasons.
  • Energy-Efficient Upgrades – High-efficiency models adapt to large temperature swings more smoothly.
  • Thermostat & Zoning Controls – Zone your home to deliver heating or cooling only where needed.
  • Indoor Air Quality Enhancements – Purifiers and dehumidifiers tackle dust, humidity, and airborne irritants.
  • Upgrading Older Systems – Newer units limit repair calls and reduce energy use.
  • Allergies & Air Quality – Regularly replaced filters keep pet dander and pollen in check.
  • Emergency Repairs – Have an HVAC specialist’s number handy for unexpected breakdowns in extreme temps.