24/7 Emergency Service 847-305-2800

Professional Heating & Furnace Installation Service

Your heating system uses more energy and costs more money than any appliance in your home. Lea Heating & Air Conditioning provides the most effective solutions to home heating at competitive prices. By installing energy-efficient heating products, we maximize comfort, economy, and reliability, delivering season after season of satisfying warmth. Contact us today for a free estimate and furnace replacement in Elgin, Crystal Lake, Carpentersville, Algonquin, West Dundee, Sleepy Hollow, East Dundee, Lake in the Hills, and Hoffman Estates, IL!


Our Heating Systems Are the Best Available

When you need a new furnace, look for high Annual Fuel Utilization Efficiency (AFUE) ratings. AFUE represents the actual season-long average efficiency and the national minimum AFUE rating is 80%. As a Bryant Factory Authorized Dealer, we recommend Bryant heating products. Bryant delivers up to a 98.3% AFUE with their variable-speed gas furnaces. And with a full line of sizes, options, and features, Bryant has the right heating equipment for the specific needs of your home, providing years of rewarding and efficient comfort.

We Guarantee Your New Furnace Installation

We are a Comfort24-7 Provider, which allows us to include a long list of guarantees with our work. Our heating installation, furnace repair, and service work, along with the Factory Authorized parts and Bryant systems we install are guaranteed to meet your approval or we refund your investment.

If at any time during the first two years after installation you aren’t 100% satisfied with your new heating equipment, we’ll make it right at no cost, or remove the installed component and refund your installation charge. When you trust your home heating needs to Lea Heating & Air Conditioning, rest assured your best interests are protected.

Contact Us for a Free Heating Installation Estimate

Get in touch with our team when you need a new furnace and professional furnace installation. We offer free estimates and financing with approved credit. Our NATE-certified technicians excel at keeping homes warm and clients happy, while outstanding products and unparalleled customer service add up to a long list of loyal customers. Call us today at 847-305-2800 or submit our online form for dependable and personal service coupled with unmatched expertise. You’ll always speak to a friendly and knowledgeable member of our team, and we’d be glad to set up an appointment for a free home estimate.

Heater Installation, Furnace Replacement, Heating Replacement, Furnace Installation & Heating Replacement Algonquin, IL, Carpentersville, IL, Elgin, IL, Hoffman Estates, IL, Sleepy Hollow, IL & West Dundee, IL

Furnace Installation Services Algonquin, IL | Heating Replacement Carpentersville, IL | HVAC Installation Elgin, IL

Heating InstallationHeating System InstallationHVAC InstallationFurnace Installation Services ∴ West Dundee, IL ∴ Carpentersville, IL ∴ Hoffman Estates, IL

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What others say

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

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

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

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

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

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

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.

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