Rated 5.0 Stars on Google!

HVAC Service in the Northwest Suburbs for over 48 years

National Award Winning Company

Schedule Now Call 847-305-2800

Fall Furnace Sale – Save An Additional $200

Financing Options to Fit Everyone’s Needs

Work with a Team You Can Count On

Air Conditioning Services

Heating & Furnace Services

Heat Pumps

Boilers

Indoor Air Quality

Cutting-Edge HVAC Solutions from Lea Heating & Air Conditioning

At Lea Heating & Air Conditioning, we pride ourselves on delivering state-of-the-art HVAC solutions to residents and businesses throughout Northeast Illinois. As a Bryant National Award Winner and Bryant Factory Authorized Dealer, we are recognized for our unwavering commitment to customer satisfaction and excellence in the heating and cooling industry.

Happy Customers

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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 fram...

Nancy Roozee

Google Review

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 pro...

Dorinda Fucarino

Google Review

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 ver...

Kristi Weseman

Google Review

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 o...

Kyle Stewart

Google Review

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...

Jon Trent

Google Review

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 impress...

Rick Adkins

Google Review

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 th...

Patti Flessner

Google Review

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 ...

Mary Loete

Google Review

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 He...

Brandon L.

Google Review

Comprehensive HVAC Services

Our team of highly skilled, factory-trained, and NATE-certified technicians and installers leverage their extensive experience to provide top-quality service and installation for every customer. We understand the importance of timely and reliable service, which is why we offer 24-hour emergency AC and heating repair services, 7 days a week, to ensure your comfort and peace of mind.

Schedule Now Call 847-305-2800

Industry-Leading Technology and Expertise

As a leader in the HVAC industry, Lea Heating & Air Conditioning stays at the forefront of technological advancements and best practices. We invest in continuous training and education for our team, ensuring they are equipped with the latest knowledge and skills to tackle even the most complex HVAC challenges.

Our commitment to innovation is evident in the cutting-edge HVAC systems we offer, such as:

Variable-speed compressors that adapt to changing cooling demands, providing precise temperature control and improved energy efficiency.
Smart thermostats that allow remote access and automated scheduling, enabling you to optimize your comfort and energy consumption.
Zoning systems that allow you to control temperatures in different areas of your home or business independently, enhancing comfort and reducing energy waste.

By leveraging these advanced technologies, we help our customers in Elgin, Crystal Lake, Carpentersville, Algonquin, West Dundee, Sleepy Hollow, East Dundee, Lake in the Hills, and Hoffman Estates, IL achieve superior indoor comfort, improved air quality, and significant energy savings.

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Featured Offers

Financing Options to Fit Everyone’s Needs

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Fall Furnace Sale

Save An Additional $200

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Furnace Clean & Check

for $104.95 - Call us for details and to schedule.

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$35 off a Service Repair Call

Offer valid with coupon. Not valid with any other offers or prior services.

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Trusted Partners in Your Comfort

At Lea Heating & Air Conditioning, we understand that your comfort and satisfaction are our top priorities. We strive to build long-lasting relationships with our customers, based on trust, integrity, and exceptional service.

Our dedicated team works closely with you to understand your unique HVAC needs and provide tailored solutions that exceed your expectations. From the initial consultation to the final installation and beyond, we are committed to delivering a seamless and stress-free experience.

Schedule Now Call 847-305-2800

Recognized for Our Outstanding Service

As a Bryant National Award Winner, we have consistently demonstrated our ability to deliver outstanding customer service and high-quality workmanship. This recognition, along with our status as a Bryant Factory Authorized Dealer, serves as a testament to our expertise and dedication to excellence in the HVAC industry.

Lea Heating & Air Conditioning offers a wide range of HVAC services designed to meet the diverse needs of our customers in Elgin, Crystal Lake, Carpentersville, Algonquin, West Dundee, Sleepy Hollow, East Dundee, Lake in the Hills, and Hoffman Estates, IL. Our expertise spans across:

AC Installation and Replacement: We specialize in the installation and replacement of high-efficiency air conditioning systems, ensuring optimal cooling performance and energy savings for your home or business.
Heating Installation and Replacement: Our team is well-versed in the installation and replacement of advanced heating systems, including furnaces, heat pumps, and boilers, to keep you warm and comfortable during the colder months.
HVAC Maintenance and Tune-Ups: Regular maintenance is crucial for the longevity and efficiency of your HVAC system. We offer comprehensive maintenance plans and tune-ups to keep your equipment running smoothly and prevent costly breakdowns.

Our in-house sheet metal shop allows us to fabricate custom ductwork and components, ensuring a perfect fit for your HVAC system. Additionally, our fully stocked parts department and service trucks enable us to quickly resolve any issues and minimize downtime, so you can enjoy uninterrupted comfort in your space.

Experience the Lea Heating & Air Conditioning Difference

When you choose Lea Heating & Air Conditioning for your HVAC needs, you can trust that you are partnering with a company that puts your comfort and satisfaction first. With our cutting-edge solutions, expert technicians, and commitment to excellence, we are confident in our ability to exceed your expectations and deliver the best possible HVAC experience.

Don’t settle for less when it comes to your comfort. Contact Lea Heating & Air Conditioning today to schedule a consultation and discover how we can help you achieve optimal indoor comfort and energy efficiency in your home or business.

Stay Comfortable Year-Round—Call Lea Heating & Air Conditioning Today for Reliable Service You Can Trust!

Don’t wait until your comfort is compromised—trust Lea Heating & Air Conditioning to keep your home perfectly cozy all year long. Whether you need a quick repair, routine maintenance, or a brand-new system, our team is ready to deliver top-quality service with a personal touch. Contact us today and experience the difference with Lea Heating & Air Conditioning!

From The Blog

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Why Upgrading Your Water Heater is the Smart Home Investment Northeast Illinois Homeowners are Making This Year If you are a homeowner in Elgin, Algonquin, Carpentersville, Hoffman Estates, Sleepy Hollow, or West Dundee, there is a strong chance that your water heater is one of the most overlooked appliances in your home. It works silently … Continued

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How Professional HVAC Documentation Can Boost Your Northeast Illinois Home’s Resale Value and Simplify Future Repairs When homeowners in Elgin, Algonquin, Carpentersville, Hoffman Estates, Sleepy Hollow, and West Dundee think about increasing their home’s resale value, they often focus on kitchen remodels, bathroom upgrades, or fresh landscaping. What many overlook is one of the most … Continued

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How Professional HVAC Documentation Can Boost Your Northeast Illinois Home's Resale Value and Simplify Future Repairs

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