0% financing on all new installations - Call for Details | 630.473.5433

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Fast Response Time

We know what it’s like when your HVAC breaks down. So, we know the importance of prompt efficient service.

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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.

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Flexible Appointments

We understand that weekends may be your only available time, and we're here to meet your needs.


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If this is an emergency, please call 630.473.5433





Our Exclusive AC & Heating

Preventive Maintenance Plan

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. We are committed to keeping your HVAC system running at peak performance year-round.

checked (1)  Two maintenances (Spring and Fall)

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checked (1)  Fewer repairs

checked (1)  Up to 15% discount on any repair

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checked (1)  Fix minor issues before they become major problems

checked (1)  Keep your unit running at maximum efficiency

checked (1)  Help prevent mid-season breakdowns


We are proud to offer:

TRANE® Products


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.

Many of TRANE®'s systems are ENERGY STAR® certified. Look out for efficiency ratings on our products to see how much you may save.

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.

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.


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"The service was exceptional! They responded to my request promptly and had a technician out to fix the issue. I am very pleased with the overall experience and glad Gray's was able to fix my A/C"

Services: A/C filter replacement, A/C system repair, A/C system maintenance


Parker Guillot
Business Owner | Carol Stream, IL

Definitely Recommend Gray's 

"I definitely recommend Gray’s Mechanical . The technician arrived he was very professional, courteous, quick and very knowledgeable of what he was doing . Price was very reasonable he came out on short notice."

Services: HVAC system repair / installation

Jennifer Slowik
Restaurant Chef | Bolingbrook, IL


"I got an issue for my heating at night time. I tried call this service and they came so fast. Give A++++ for the Gray’s Mechanical service!! Great company and super professional.. Would recommend this company!"

Services: Heating Repair

Thao Nguyen Duong
Construction Worker | Wheaton, IL


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Serving the Chicagoland area, Including:
Chicago, Carol Stream, Glendale Heights, Bloomingdale, Wheaton, Winfield, Glen Ellyn, St. Charles, Hanover Park, Bartlett, Geneva, Villa Park, Lombard, Warrenville, Elgin, Aurora, Batavia

24/7 Emergency Services • Call 630-473-5433
©2023 Gray's Mechanical