Rated 4.9 Stars on Google!

Northwest Chicagoland’s Most Trusted HVAC Repair & Replacement Service

Keeping Lake Barrington, Barrington, Algonquin, Cary, Crystal Lake, Palatine, Wauconda and surrounding areas cozy all winter long, since 2009!

Online Quote Request Service Call (815) 999-8191

Over 16 Years of Heating & A/C Experience

Thomas Gilhooly started Northern Comfort in 2009 to offer commercial and residential duct repair and cleaning services. Since then, the company has grown to offer a comprehensive menu of heating and cooling repair services, as well as installations of Lennox brand equipment.

Residential HVAC

Commercial HVAC

Heating Systems & Furnaces

Air Conditioning Services

Duct Cleaning

Offers

The Northern Comfort Difference

Since 2009, our company has been the go-to choice for heating, cooling, and duct services in Algonquin, Barrington, Cary, Crystal Lake, Lake Barrington, Palatine, and Wauconda. At Northern Comfort, we are proud to be a family-owned and operated business built on integrity, quality, and a commitment to excellence. With 16 years of experience, we’ve established ourselves as leaders in the HVAC industry, delivering reliable solutions tailored to your specific needs.

Work With Lake Barrington’s Best in HVAC Services

Ready to experience the Northern Comfort difference? Call us today at (815) 999-8191 or Request Service. Let us help you maintain a comfortable, efficient environment year-round! Proudly servicing Algonquin, Barrington, Cary, Crystal Lake, Lake Barrington, Palatine, Wauconda and surrounding areas.

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Reputable & Trustworthy

Highly Rated on Google and Around the Web
Industry-Leading Warranties and Guarantees

Fast & Reliable

Customer Service Available 24/7/365
Talk to a Knowledgable Local Person When You Call

Legitimate & Credible

Licensed, Bonded, and Insured
We Install Name-Brand Systems that Last

Our Residential & Commercial Customers Love Us!

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Excellent service! Recommend.

Nataliya Berezhnaya

Google Review

Very good service!

Fernando Tello

Google Review

They did a good job, they went through every vent in the house drying and vacuuming everything. Thanks for the great service. The service was very good, they vacuumed and brushed every vent in the house, I liked the service

Isabella Guzman

Google Review

Very professional!

Aurel Paun

Google Review

On time very professional.

Michael Wise

Google Review

Best place ever!

Jonas Johnsburg

Google Review

Absolutely outstanding!!

Scott Vanderwiel

Google Review

They did a great job!

Jill McCauley

Google Review

Good service by George Guerra.

Prakash Madadakere

Google Review

The do good work great jobs.

Hurka Ahmetovic

Google Review

Prompt and excellent service

Tameka Vann

Google Review

Timely, efficient, and friendly.

Glenn Suacillo

Google Review

He was very friendly and kind. I like the work.

Erdal Er

Google Review

Very professional team! Friendly, helpful and knowledgeable.

Doina Ileana Panaitescu

Google Review

Best HVAC company I've had the pleasure of working with!

Ryan Hummel

Google Review

We Can Repair & Service Any Make & Any Model of Heating & Cooling System

At Northern Comfort, we don’t just offer services – we offer expertise. Every technician on our team is highly trained and certified to handle even the most complex HVAC challenges. From routine maintenance to emergency repairs, we bring precision and knowledge to every job. Whether you’re a homeowner in Lake Barrington or a business owner in Barrington, you can count on us for solutions that last.

Request Service Call (815) 999-8191

Your Local Experts in Furnace & A/C Services

We’re proud to be Lake Barrington’s trusted HVAC company, and we’re equally committed to providing exceptional service Algonquin, Barrington, Cary, Crystal Lake, Lake Barrington, Palatine, Wauconda and surrounding areas.

Our services include:

Duct repair and cleaning to improve air quality and system efficiency
Heating and cooling repairs to keep your systems running smoothly
Installation of state-of-the-art HVAC systems tailored to your space
Comprehensive maintenance plans to extend the life of your equipment

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Featured Offers

No Payments for 12 Months!

Heating & A/C System Sale. 0% Same as cash. Good credit, bad credit, we finance everyone. Lifetime parts & labor warranty *All maintenance must be completed as advised with Northern Comfort Call (815) 999-8191 for details. Restrictions and exclusions may apply.

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Free Service Call

With any paid repair or system replacement. Call (815) 999-8191 to schedule.

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Rebates Available

Call (815) 999-8191 for details about manufacturer and utility rebates! Save thousands on new energy-efficient systems.

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$299 Whole House Duct Cleaning

For homes 2,200sqft or less. Call (815) 999-8191 for details. Exclusions apply.

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$89 Furnace Tune-Up

Keep your system running at peak efficiency! If you need a replacement we are always happy to provide a free estimate. Call (815) 999-8191 for details. Exclusions apply.

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Free Furnace Estimate

Need a new furnace? Priced as low as $27/mo. Call (815) 999-8191 for details. Exclusions apply.

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A Legacy of Trust and Reliability

At Northern Comfort, we believe your comfort is non-negotiable. That’s why we use only the highest-quality products and cutting-edge technology in every service we provide. We are proud to partner with industry-leading brands to ensure you receive energy-efficient, durable, and cost-effective solutions that stand the test of time.

Request Service Call (815) 999-8191

Welcome to Northern Comfort: Your Reliable Partner for HVAC Solutions

Since day one, we’ve been committed to building trust with our clients. As a small, family-owned business, we understand the importance of personalized service. When you choose Northern Comfort, you’re not just a customer – you’re part of our extended family. Our dedication to quality and customer satisfaction has earned us a reputation as Lake Barrington’s most dependable HVAC provider in Northwest Chicagoland.

At Northern Comfort, our goal has always been to exceed expectations. Whether you need duct cleaning, HVAC repairs, or new system installations, we’re here to help. Serving Algonquin, Barrington, Cary, Crystal Lake, Lake Barrington, Palatine, Wauconda and surrounding areas, we bring our expertise to homes and businesses across in Northwest Chicagoland.

From The Blog

Building Your Year-Round Home Maintenance Calendar: A Month-by-Month Guide to Protecting Your Heating and Cooling Investment

Building Your Year-Round Home Maintenance Calendar: A Month-by-Month Guide to Protecting Your Heating and Cooling Investment Your heating and cooling system represents one of the largest investments in your home, and like any major investment, it requires consistent attention to deliver reliable performance. At Northern Comfort, we have seen firsthand since our founding in 2009 … Continued

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Building Your Year-Round Home Maintenance Calendar: A Month-by-Month Guide to Protecting Your Heating and Cooling Investment

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Essential Home Safety Features Your HVAC System Should Include to Protect Your Family

Essential Home Safety Features Your HVAC System Should Include to Protect Your Family Your heating and cooling system does far more than regulate temperature. It serves as a critical safety infrastructure for your home, protecting your family from airborne hazards, carbon monoxide exposure, humidity-related health risks, and fire dangers. At Northern Comfort, we have been … Continued

March 1, 2026 Read This Post

Essential Home Safety Features Your HVAC System Should Include to Protect Your Family

March 1, 2026 Read This Post