24/7 Emergency Service 847-305-2800

Professional AC Installation & Design Services You Can Trust

There’s no need to suffer through a long, hot, sticky summer. You deserve a refreshingly cool home 24 hours a day. Call Lea Heating & Air Conditioning and we’ll design an energy-efficient, cost-effective and reliable cooling system, and deliver an expert AC installation you can live with happily for years to come.


AC Installation in Northeast Illinois

Today’s improved air conditioners use 30% to 50% less energy to generate the same amount of cooling as models from 20 years ago. Even if your air conditioner is only 10 years old, you stand to save 20% to 40% of your cooling energy costs with the installation of a new high-efficiency model. As a Bryant Factory Authorized Dealer, we offer the latest innovations to bring you the most convenient, powerful, and satisfying cooling products available.

We’re a Team of Seasoned AC Installation Experts

Our team is made up of NATE-certified AC technicians who are dedicated to taking care of the little details and major concerns to ensure safe, reliable, and rewarding performance.

  • We check for adequate indoor space to support your new system.
  • We utilize a duct-sizing methodology to ensure proper fit.
  • We make sure there are sufficient supply registers to deliver cool air.
  • We also ensure you have enough return registers to direct warm air back to the air conditioner.

And by carefully locating the condensing unit in the optimum location, we prevent nearby objects from blocking airflow and limit the possibility of noise bothering you or your neighbors.

We’ll Design Your New AC Installation With Proper Procedures

Adequate sizing and proper installation are key factors in your new air conditioner living up to expectations of efficiency and longevity. Too large of a unit won’t sufficiently remove humidity, will cycle on and off continually, never reach ideal efficiency levels, and won’t last as long as it should because of excess strain on components. Too small of a unit can’t reach desired comfort levels, will run constantly, and cost much more to operate. But if your unit is installed and sized correctly, it should provide you with uninterrupted comfort for the next 15 to 20 years.

Trust our trained professionals to answer any questions you might have, make practical recommendations, and factor in much more than square footage when sizing equipment for your home. We’ll take into consideration the number of windows and doors, quality of insulation, ceiling height, unconditioned spaces such as basements and attics, and everything from shade trees to humidity concerns, before making recommendations. Our trained specialists will take the time to discuss options and keep you informed during every step of the process.

Contact Us for AC Installation Service

For the best AC installation options in Elgin, Crystal Lake, Carpentersville, Algonquin, West Dundee, Sleepy Hollow, East Dundee, Lake in the Hills, and Hoffman Estates, IL, call Lea Heating & Air Conditioning. As a Comfort24-7 Network provider, we guarantee our work and installed equipment for two years or your money back. We offer free estimates, plus flexible financing options with approved credit.

At Lea Heating & Air Conditioning, we do everything in our power to keep prices competitive and quality high. To get the most enjoyment out of your summer in Northeast Illinois, and the best investment for your cooling dollar, contact us at 847-305-2800 or fill out the convenient online form.

Air Conditioning Installation, Air Conditioner Installation, AC Installation & HVAC Installation Algonquin, IL, Carpentersville, IL, Elgin, IL, Hoffman Estates, IL, Sleepy Hollow, IL & West Dundee, IL

Cooling System Installation Algonquin, IL | Air Conditioning Installation Carpentersville, IL | Air Conditioner Installation Elgin, IL

Air Conditioner InstallationCentral AC InstallationCooling System InstallationAC System Installation ∴ Sleepy Hollow, IL ∴ West Dundee, 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

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’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

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 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.

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

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

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

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