Heating and Cooling Solutions
Crystal Lake, IL
24/7 Emergency Service Available
Coupons Available
Financing Options
Request Lorem Epsom
Hero Request Form
Thank you for contacting us.
We will get back to you as soon as possible.
Please try again later.
Scheduling A Service Just Got Easier!
Reliable Heating and Cooling Solutions
Why Choose Us
24/7 Emergency Service Available
Coupons Available
Financing Options
NATE-Certified
Maintenance Agreements Available
Third-Generation Family-Owned Business Since 1930

AC Services
Air Quality Services
Commercial AC Services
Commercial Heating Services
Emergency Heating and Air Repair
Heating Services
High-Efficiency HVAC
HVAC Testing
Specialty HVAC Services
Ventilation Services

Save $25 On Any Billable Service Call

$25 OFF
Get a $25 discount off your billable service call. 1 coupon per customer, per service. Valid only with coupon. Not valid with any other offer. Coupon code is Web 2021-25.

Save $300 On A High Efficiency Furnace Installed

$300 OFF
Get a $300 discount on a high efficiency furnace installed. 1 coupon per customer, per service. Valid only with coupon. Not valid with any other offer. Coupon code is Web 2021-300.
Here's what our satisfied customers are saying...
At H.R. Stewart Inc, we take pride in providing exceptional plumbing and HVAC services to our customers. We would be grateful if you could share your thoughts about our business with others. Your feedback helps us improve and helps others make informed decisions. Please take a moment to leave a review of H.R. Stewart Inc and let others know what you think.
Frequently Asked Questions About Our HVAC Services
What types of heating and cooling systems do you work on?
Our team works with a wide range of residential and light commercial heating and cooling systems, focusing on dependable comfort and long-term reliability. Homeowners often reach out to an HVAC Contractor in Crystal Lake, IL when they notice uneven temperatures, rising energy bills, or systems that struggle during seasonal changes. We help with furnaces, boilers, radiators, and air conditioning systems, along with ductwork and sheet metal components that support efficient airflow. Our approach is practical and informative, helping you understand what your system needs without pushing unnecessary upgrades.
We also take time to explain how everyday habits, regular maintenance, and system age can affect comfort and efficiency throughout the year.
Do you handle plumbing issues beyond basic repairs?
Yes, our plumbing services extend well beyond fixing leaks or replacing fixtures. Many customers choose an HVAC Contractor in Crystal Lake, IL because they want one reliable company that understands how plumbing systems connect throughout the home. We assist with sewer services, gas line work, drains and pipes, and specialty plumbing projects that require extra attention. These services often include:
- Diagnosing recurring drain or pipe problems
- Supporting appliance installation with proper plumbing connections
- Addressing outdoor plumbing concerns before they worsen
Looking at the full plumbing system helps uncover causes, not just symptoms, which can reduce repeat issues and unexpected disruptions.
Can you help with appliance and water heater installations?
Appliance and water heater installations are an important part of keeping daily routines running smoothly. Homeowners often look for an HVAC Contractor in Crystal Lake, IL who understands both plumbing and mechanical connections involved in these projects. We help install water heaters, dishwashers, washing machines, and other appliances that rely on safe water and gas lines. Our goal is to ensure everything is connected correctly from the start, reducing the risk of future issues and helping appliances operate as intended.
Proper installation can also support better efficiency, quieter operation, and fewer service calls over the life of the appliance.
What should homeowners know about gas line and sewer services?
Gas lines and sewer systems are often out of sight, which makes early warning signs easy to miss. Working with an HVAC Contractor in Crystal Lake, IL can be helpful when you notice slow drains, unusual odors, or appliances that aren’t functioning properly. Gas line services focus on safety and proper flow, while sewer services help prevent backups and long-term damage. Common reasons people request these services include:
- Older systems that need updates or repairs
- Persistent clogs that standard cleaning can’t resolve
- Preparing a home for remodeling or new appliances
Paying attention to subtle changes can make it easier to address concerns early, before they turn into larger, more disruptive problems.
Do you offer solutions for outdoor plumbing problems?
Outdoor plumbing issues can be easy to overlook until they cause noticeable damage. Many property owners contact an HVAC Contractor in Crystal Lake, IL when outdoor faucets, underground lines, or seasonal plumbing components stop working as expected. We assist with outdoor plumbing repair that supports proper drainage and water flow around your home. Addressing these issues early can help prevent foundation concerns, water waste, and inconvenient disruptions during warmer months.
Seasonal inspections are especially helpful, as changing temperatures can place added stress on exterior plumbing components.
How do your specialty plumbing and sheet metal services fit together?
Specialty plumbing and sheet metal services often go hand in hand, especially when systems need custom solutions. Choosing an HVAC Contractor in Crystal Lake, IL can make these projects more straightforward because plumbing, heating, and airflow considerations are handled together. Sheet metal work supports proper ventilation and system performance, while specialty plumbing services address unique layouts or older homes. This combined approach helps ensure systems work efficiently without relying on one-size-fits-all fixes.
This coordination is especially valuable in older properties, where customized adjustments help systems operate more smoothly and reliably, reduce strain on connected components, improve long-term durability, and support safer, more consistent comfort throughout the entire home.
















