Hours: We are open 24/7

333 E Judd Street, Woodstock, IL 60098

(815) 338-0282

Financing Available


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At Woodstock Heating & Cooling, we have over 100 years of experience serving homeowners across Woodstock, IL; Crystal Lake, IL; Huntley, IL; McHenry, IL; Lake in the Hills, IL; Cary, IL; Algonquin, IL; Bull Valley, IL; and Village of Lakewood, IL with top-quality HVAC solutions, including tankless water heaters! Our team of NATE-certified experts is here to provide exceptional service, quality workmanship, and advanced solutions to cover your hot water supply needs.

Tankless Water Heaters from Woodstock Heating & Cooling

Tankless hot water heaters are a real game-changer as they are able to provide hot water on demand instead of storing it in a tank. This makes these systems way more energy efficient compared to conventional hot water heaters. These systems also last almost twice as long as traditional systems, however, it’s important to keep up with regular maintenance and care to keep your system running safely, smoothly, and effectively. Our team of experts will work carefully with you to determine the ideal tankless water heater for your particular needs. When it comes to installing your new tankless water heater, we utilize state-of-the-art equipment and tools to ensure your new tankless water heater is installed flawlessly, meeting all performance and safety standards.

When You Need Service for Your Tankless Water Heater, We’re Here to Help

Your comfort, safety, and satisfaction matter a great deal to us, which is why you can count on us for comprehensive maintenance to keep your investment protected. We recommend yearly maintenance on your tankless water heater and if you have any trouble, we can diagnose and repair any issues you might be dealing with quickly without sacrificing the quality of repair. If you’re interested in tankless water heaters or you need maintenance, give us a call today at (815) 338-0282!


We’re Celebrating 100+ Years of Service to the Community
We have had the pleasure of serving McHenry County and the surrounding areas since 1917.


A Full Line of Equipment
With our warehouse fully stocked, we can offer you many different options depending on what you’re looking for.


We’re Passionate About Our Work & Improving Every Day
Woodstock Heating & Cooling currently has a 98% customer approval rating.

Tankless Water Heater Maintenance, Tankless Water Heater Replacement, Tankless Water Heater Installation, Tankless Water Heater Service & Tankless Water Heater Repair Woodstock, IL, Crystal Lake, IL, Huntley, IL, McHenry, IL, Lake in the Hills, IL & Cary, IL

Residential HVAC Services in Woodstock, IL | Tankless Water Heater Maintenance Crystal Lake, IL

Residential HVAC ServicesLight Commercial HVAC Services ∴ Lake in the Hills, IL ∴ Huntley, IL ∴ Algonquin, IL

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Customer Reviews
What our customers are saying

I have always been impressed by the prompt response and excellent service provided by Woodstock Heating & Cooling. Justin was here today for a service check on my furnace and he was extremely professional, informative and skilled…not surprising, because this is the company norm. Thank you.


responded to request for repair work on heating system quickly and the workmanship was excellent; along with reasonable cost. Woodstock Heating is a quality business; the Best!


Excellent experience. I had a humidifier, media cabinet, whole house dehumidifier and thermostat installed. Great experience from initial consultation with Thomas through quote and install with Witt. Witt did an excellent job- clean, efficient and took the time to explain everything to me. I would highly recommend Woodstock Heating and Cooling


Woodstock Heating and Cooling did a great job with both our furnace and A/C. When we have had any trouble, they respond very quickly. Their people are professional, caring and ready to go the extra mile to do what it takes to repair equipment. A big thank you in particular to Joe and Greg who were here last week to help with an issue caused by a mouse. We cannot say enough positive things about Woodstock Heating and Cooling! They have our loyalty!


Whit and KC were on time and completed the job well within the estimated time window. Great service, and I’ll call Woodstock Heating and Cooling again for future work on my HVAC.


Just so wonderful to work with a quality locally owned and operated company.


Justin was excellent! He was professional, explained things so we could understand, he was thorough and did an excellent job on our preventative maintenance check for our heating systems. He is also very personable, honest and we are very pleased with his service!

At Woodstock Heating & Cooling,

We’ll treat you like family.

Our Story

Residential HVAC Services

Light Commercial HVAC Services

McHenry, IL

Algonquin, IL

Huntley, IL

Bull Valley, IL

Woodstock, IL

Village of Lakewood, IL

Lake in the Hills, IL

Cary, IL

Crystal Lake, IL