No matter how big or small your HVAC needs,

we can handle them all...

  • New technology, delivered the old fashioned way
  • Family Values for the heart of your home
  • 24-hour emergency HVAC service, 7 days a week
  • We service all makes and models

Rated A+

Hearthstone Heating and Air Conditioning, Ltd. has achieved the complaint-free A+ rating for over a decade. We never rely on subcontractors to do our work or live up to your expectations.
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100% Guaranteed

By partnering with Comfort24-7, Hearthstone Heating and Air Conditioning, Ltd. is able to offer a Two-year 100% Money Back Satisfaction Guarantee on new system installations.
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By exceeding expectations in customer service, management, business growth and operational excellence, Hearthstone Heating and Air Conditioning, Ltd. is proud to have been recognized with Carrier President’s Award.
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Nate Certified

Our certified technicians have verified their understanding of today's increasingly complex heating and cooling systems by passing nationally recognized exams developed and endorsed by all segments of the HVAC industry.
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Whether you need routine maintenance, emergency repair, replacement equipment, or a complete system, call us today. We’re the people you can count on for all your family’s home comfort needs. We proudly service all of DuPage County and its surrounding areas including: Downers Grove, Darien, Lisle, Clarendon Hills, Hinsdale, Oak Brook, Burr Ridge, Woodridge, Naperville, Bolingbrook, Lombard, Elmhurst, Western Springs, LaGrange, & more!

Heating & AC Repair Experts in Westmont, IL

Since 1996, Hearthstone Heating and Air Conditioning, Ltd. has dedicated our extensive resources, training and conscientious service to home and commercial comfort in DuPage County and the surrounding areas. Through hard work, customer focus, and the highest efficiency products, we ensure that you have the best possible experience from the moment you call us to the completion of all work. Over nearly twenty years in business, we’ve learned exactly what it takes keep a home comfortable, despite the extreme weather swings, and promote only those products that provide outstanding efficiency, reliability, and performance to guarantee our customers comfort and satisfaction

24-hour emergency HVAC service, 7 days a week!

We recognize that some of the most difficult heating and cooling problems you face as a home or business owners aren’t restricted to normal business hours. For those desperate times, Hearthstone Heating and Air Conditioning, Ltd. offers 24-hour, 7-days-a-week emergency service. Know that when you call 630-435-9800, help is just minutes away. Our offices are located at 105 W 61st Street, Westmont, and we pride ourselves on prompt and personalized attention, striving to combine old-fashioned values with modern expertise.

We service all makes & models of heating and cooling systems!

Hearthstone Heating and Air Conditioning, Ltd. is a Carrier Factory Authorized Dealer, having earned the distinction by performing to rigorous national standards, and participating in extensive factory training specific to equipment installation, maintenance and repair.

✷ AC Clean
Check Special ✷

* $99 by 6/15/24 *
$129 regular price
Call to schedule an appointment
Valid through 6/15/24

Maintenance Agreements

Our Maintenance Agreement
customers receive
30% off service calls.

Call (630) 435-9800 for details.

$40 off any repair

Limited time offer!
Call for details.

(630) 435-9800

Limited Time Only

* Carrier Discounts *

Discounts On Heat Pumps With
Cool Cash and Utility Rebates
Up to $10,000

Carrier Offer/Utility Rebates

* SAVINGS UP TO $3,250 *

Carrier Rebate Up To: $1650
Utility Rebates Up To: $1600

Sanitize Your Home

Sanitize Your Home 24 Hours a Day
with an OXY4 Air Purifier

$795 Installed


David Collins

December 18th, 2023

Reliable HVAC Provider

Was looking for a new HVAC provider and have found a top notch partner in Hearthstone. Ended up having a major furnace failure right before Thanksgiving. This company was fantastic! Diana and Dave worked together so well to get my system diagnosed very quickly and efficiently. Paul and Ben delivered excellent work in replacing large complicated components quickly. Super knowledgeable and professional people in this company. They really care a lot about their customers. Thank You Hearthstone!

Clayton Shoup

December 3rd, 2023

Fair Pricing & Fast Service

We have used Hearthstone for many years. Recently our 20+ year old furnace was on it's last legs and their staff responded quickly and installed a new furnace/heat pump combo at a fair price. They assisted us with financing and applying for energy saving rebates. We will always use Hearthstone for our heating/air conditioning needs. Many thanks to Dave and the gang!

Jim Sperlak

May 15th, 2023

Trouble-Free Installation

Replaced an existing Carrier HVAC system with a new Carrier Furnace and Heat Pump/Air Conditioning system recommended by Hearthstone's Dave Selke. He was very knowledgeable about assessing what would be best for my home and their prices were very competitive. I highly recommend Hearthstone for trouble free and economical installation experience.

Call Today: (630) 435-9800

Contact Us
Hearthstone Heating and Air Conditioning, Ltd.
105 W 61st
Westmont, IL 60559
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