24/7 Emergency Service 847-305-2800

Through our top-quality heating services, technological expertise, and product knowledge, Lea Heating & Air Conditioning has been distinguished as a Bryant Factory Authorized Dealer. We install Factory Authorized parts, and as a Comfort24-7 Provider, we guarantee our work. Our heating technicians are NATE-certified, having completed nationally-recognized HVAC-specific tests, and continue to update their knowledge of the latest developments. When you need heating services in Elgin, Crystal Lake, Carpentersville, Algonquin, West Dundee, Sleepy Hollow, East Dundee, Lake in the Hills, and Hoffman Estates, IL, rely on our team.


Factory-Certified Heating Services

At Lea Heating & Air Conditioning, we offer professional heating services for all makes and models of furnaces, provide convenient appointment times, and offer financing with approved credit. Our service technicians never keep you waiting, and safeguard your property by wearing foot coverings and keeping an organized work area.

Expert Furnace Installation & System Design

Over 40 years of hands-on experience and weekly training have made Lea Heating & Air Conditioning a leading name when it comes to local heating services. We can heat your space affordably, no matter how much space you have. Our NATE-certified technicians will factor in home size, home age, number of rooms, insulation quality, windows, climate, local and regional utility costs, unconditioned spaces, and ductwork to design a system that meets your specific needs and budget.

Lower Utility Bills With Routine Maintenance

Your furnace was a significant investment, and you rely on it for comfort. To get the absolute most out of your furnace, professional service is critical. When you notice lower comfort levels, increased operational noise, or unnecessarily high energy bills, don’t wait. Your heating equipment may be putting your family’s health at risk. Call our team for prompt attention.

Contact Us to Schedule Heating Services Today!

From small heater repairs to full-scale heating installations, Lea Heating & Air Conditioning can handle it all. We offer the leading heating services in the area and would love the opportunity to earn your business. Call us at 847-305-2800 to discuss your heating needs, request a free estimate, and schedule an appointment today.

Heating Service, Furnace Service, Heater Maintenance & Furnace Maintenance Algonquin, IL, Carpentersville, IL, Elgin, IL, Hoffman Estates, IL, Sleepy Hollow, IL & West Dundee, IL

Heating Maintenance & Furnace Service in Algonquin, IL

Heating Maintenance ∴ Sleepy Hollow, IL ∴ Algonquin, IL ∴ Carpentersville, IL

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What others say

We have used LEA HEATING and cooling for 8 years,top notch company, they are on time, attention to detail and work is perfect. Clean up is best in class. Todays LEA rep was Duane, and he is a true professional. Great company.

Jon Trent

I had an issue with an update on my thermostat. I contacted one local company and they had sent two guys out that had no idea what the issue was. I then contacted Lea Heating & Air Conditioning. I had the opportunity to talk with Robert and he went “way out of his way” to help me out. Outstanding customer service! He is very knowledgeable in his work, was pleasant to work with, and was reliable. Outstanding companies like this are hard to find. I will always call them first for any work that needs to be completed. I highly recommend them!

Brandon L.

We have used Lea Heating services for 20 years. They repaired and maintained HVAC in our large family home in this area and replaced the furnace and air conditioner when required. Now that we downsized to our “retirement” home, we knew immediately they were the ones to call for this place too. They have always been responsive, professional and pleasant too. They provide information and answer questions, do not pressure sell and provide quality equipment. Yesterday they installed a new furnace and air conditioner in a timely manner, were considerate, clean and helpful in their approach. One gentleman even carried in some groceries for me! They left the site in tip top condition with everything working. Highly recommend Lea Heating.

Mary Loete

From the estimate to the install, everything was excellent. With being a retiree from the trade world, the work was clean, started on time, finished on time, very impressed! Would highly recommend!!!

Rick Adkins

Mike Lea was wonderful giving me a quote, explaining the price, discounts, the process etc. The crew was friendly, worked like a well oiled machine and explained what they to doing. I purchased a furnace, A/C, humidifier & thermostat. Everything was cleaned up when they were done and I couldn’t even tell they had been at my home. Fast, efficient and good price! I highly recommend Lea Heating & Air Conditioning.

Patti Flessner

We had a new AC & Furnace installed one month ago; everything is working perfectly from day one. Mike came out initially and gave us a few options that would work with our home, was very helpful and answered all of my questions. Andy and Jordan installed our new AC & Furnace in a single day, amazing job considering we have a very cramped utility closet. Very pleased all around, I highly recommend!

Kyle Stewart

I highly recommend Lea Heating and Air. They are very fair priced and knowledgeable about what needs to be done. Josh and Andy installed my central air yesterday. I’m very happy with their work. Both were friendly and very efficient. They took the time to answer any questions that I had and cleaned up beautifully. Thank you again for a job well done!!

Kristi Weseman

I’m very pleased with Lea heating & Air, I had a quote done, very reasonable price, i called scheduled an appointment for whole HVAC system install, Ron & Joshua were professional very knowledgeable, never messy, after the job was complete they both explained everything to me, these two guys know what they’re doing. I would highly recommend Lea to everyone, they’re awesome!

Dorinda Fucarino

I used Lea Heating for a normal maintenance service check up in my new townhouse. They were able to accommodate an early morning appointment and kept within the time frame quoted. Duane answered my questions politely and gave me good information for future heating/cooling situations. I would use this company again.

Nancy Roozee

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