Let Us Service Your Home
Fast Response Time
We know what it's like when your HVAC breaks down. So, we know the importance of prompt efficient service.
24/7 Emergency Services
Because you never know when an HVAC disaster is going to happen. We are ready and available 24 hours a day, 7 days a week.
Flexible Appointments
We understand that weekends may be your only available time, and we're here to meet your needs.
Request Services
WE RESPOND QUICK!
If this is an emergency, please call (630) 283-7981
Your Comfort Is Our Priority
When you need reliable HVAC services, you want a team that treats your home like their own. At Gray's Mechanical, you get the kind of service that prioritizes comfort, air quality, and energy efficiency to keep your house as comfortable as possible. Whether it's air conditioning repair during the summer months or giving your home's heating system the maintenance it needs to keep you warm through chilly nights, our technicians know how to keep your HVAC system running smoothly. Your home deserves a trusted HVAC company, and we're here to handle everything from routine maintenance to unexpected repairs. Stay cool in the hot summers and warm in the winter—all while saving money on your energy bills. With our expert care, you can rely on us to keep your system in top shape year-round.
Comprehensive HVAC Services
From air conditioning repair to furnace installations, our range of HVAC services keeps your system in top shape year-round.
Heating Services
Heating Repair
Don't get left out in the cold this winter. Our reliable heating repair services ensure your home stays warm and comfortable all season long.
Heating Installation
Need a new heater? Our team offers professional installation of heating systems tailored specifically to your home's needs.
Furnace - Natural Gas
We specialize in repairing and installing natural gas furnaces. Our experienced technicians make sure your furnace runs smoothly.
Cooling Services
Heat Pumps & Mini Splits
Heat Pumps / Mini Splits
Versatile and effective, our heat pumps and mini splits cater to heating and cooling needs, ensuring year-round comfort.
Heat Pump Installation
Professional heat pump installation and replacement services for energy-efficient heating and cooling.
Heat Pump Repair
Expert heat pump repair services to keep your system running efficiently all year round.
Our Exclusive AC & Heating Preventive Maintenance Plan
Our preventative maintenance plan covers both air conditioning and heating services so your units perform at maximum efficiency. Regular maintenance means fewer repairs, better air quality, and cost savings for you.
Gray's Mechanical is proud to offer a comprehensive HVAC maintenance plan. Every customer is a member of our family and, therefore, gets the Gray's Mechanical Guarantee.
- Two maintenances (Spring and Fall)
- Discounted destination charge
- Fewer repairs
- Up to 15% discount on any repair
- Priority customer
- 24 hour emergency service
- Fix minor issues before they become major problems
- Keep your unit running at maximum efficiency
- Help prevent mid-season breakdowns

We are proud to offer:
TRANE® Products
Tough
TRANE tests their products for 2,600 hours in bone-chilling cold and blistering heat. They push their technology so the system you get serves you for up to 12-20 years.
Efficient
Many of TRANE's systems are ENERGY STAR certified. Look out for efficiency ratings on our products to see how much you may save.
Innovative
TRANE's HVAC systems have come far, but never settle. With 1,500 heating and cooling patents, their technology is engineered to be better than the rest.
Trusted
For 120 years, TRANE have been the market leaders at improving HVAC systems. TRANE grew into a household name as our customers continued to return to reliable products.
Why Choose Gray's Mechanical?
With over 10 years of experience serving Carol Stream and the greater Chicagoland area, we've built our reputation on reliability, expertise, and genuine care for our customers.

Fast Response Time
We know what it's like when your HVAC breaks down. So, we know the importance of prompt efficient service.
24/7 Emergency Services
Because you never know when an HVAC disaster is going to happen. We are ready and available 24 hours a day, 7 days a week.
Flexible Appointments
We understand that weekends may be your only available time, and we're here to meet your needs.
10-Year Warranty
We stand behind our work with industry-leading warranties on parts and labor for your peace of mind.
Certified Professionals
Our technicians are fully licensed, insured, and continuously trained on the latest HVAC technologies.
Family-Owned Business
As a local family business, we treat every customer like family and take pride in serving our community.
Comprehensive HVAC Services in Carol Stream
Are you looking to set up a new system, need a quick fix, or seek a maintenance plan? From air conditioning repair to boiler installations, our range of HVAC services is tailored to keep your system in top shape.
HVAC in Carol Stream
HVAC in Carol Stream is crucial for maintaining comfortable living environments throughout the year in this diverse climate. HVAC, short for Heating, Ventilation, and Air Conditioning, covers installing, maintaining, and fixing systems that control indoor temperature and air quality.
Proper HVAC services ensure that homes remain energy-efficient and air circulation meets health standards. Efficient HVAC systems keep us comfortable, help lower our energy bills, and reduce our environmental footprint.
At Gray's Mechanical, all your HVAC needs are covered in Carol Stream. Our dedication to friendly service, reliable solutions, and top-notch expertise make us the go-to choice for your home comfort.
Installation
Setting up new HVAC systems for optimal performance.
Repairs
Fixing issues promptly to restore functionality.
Maintenance
Regular check-ups to prolong the lifespan of your equipment.
Meet Our Expert Technicians
Certified and Experienced Professionals
At Gray's Mechanical, we're proud of our skilled team of certified and experienced technicians. Our experts aren't just knowledgeable but genuinely passionate about providing the best HVAC solutions. They continuously train to stay ahead of industry trends and technologies and truly care about their work.
You can rely on our team members to handle any HVAC challenge with precision and expertise, bringing you the comfort you deserve.
Friendly and Reliable Service
We believe that excellent service isn't just about technical know-how - it's also about the human touch. Our technicians are friendly and approachable, always happy to answer your questions, address your concerns, and find the best solutions for you.
We strive to build lasting relationships with our Carol Stream customers through dedication and genuine, personable service.

10-Year Guarantee on Our A/C Units
At Gray's Mechanical, we understand that sometimes things don't go exactly as planned after a new A/C installation. That's why we proudly offer a 10-year labor guarantee on our new A/C units.
If your A/C experiences any issues within the first year after installation, just give us a call, and we'll fix it. No questions asked. We stand by our work, and your satisfaction is our ultimate goal.
And if you sign up to be a maintenance member, that 10-year warranty for new residential installations is all yours.
Our commitment is clear: Should anything go wrong with your air conditioner or furnace, Gray's Mechanical is just a phone call away to provide a swift and professional solution.

What's Covered
- All parts and labor on new installations
- Priority service for warranty claims
- No questions asked repairs
- Extended coverage with maintenance membership
Flexible Financing Options
At Gray's Mechanical, we're committed to making your home's comfort affordable and stress-free. That's why we offer flexible financing options.
Our financing plans are designed to help you get the HVAC system you need now without the financial strain. Why wait? Enjoy flexible financing that lets you spread the cost over time.
With convenient monthly payments, managing your budget has never been easier. Plus, account management is straightforward and hassle-free, ensuring you can focus on what truly matters.
Quality Craftsmanship
Our Work
Take a look at some of our recent HVAC installations and repairs throughout the Chicagoland area.




Our Service Areas
We proudly serve Carol Stream and the surrounding Chicagoland communities with professional HVAC services.
Don't see your area? Call us to check if we service your location.
Ready to Experience the Gray's Mechanical Difference?
Whether you're a new homeowner or simply looking to upgrade your current system, we're here to assist. Don't wait—reach out today and let us bring comfort to your home.
Emergency? Call (630) 283-7981 for 24/7 support

