We Do it All - Give Us a Call! 618-694-7699

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Residential HVAC Contractor

We service, maintain, and install furnaces, boilers, heat pumps, mini-splits, and air conditioners, We have a complete sheet metal fabrication shop providing the right ventilation for your home. We offer zoning and IAQ products. We can upgrade your existing HVAC system or design one for your new construction product.
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Commerical HVAC & Refrigeration

From Rooftop units to boiler/chiller applications, we provide maintenance, repair service and installation. We are your Go-To commercial refrigeration contractor for all walk-in and reach-in coolers and freezers. We handler unit heater, radiant tube heaters and make-up air units.  Give us call. You'll be glad you did!
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 Providing Commercial And Residential Energy Audits


General contractors and building owners requiring blower door testing, envelope analysis, or energy audits; give us a call. Do you feel drafts or notice musty odors in your home? Give us a call. We can detect  unconditioned air infiltrating your home. Our technicians are trained and certified for blown-in and closed-cell  insulation and crawlspace encapsulation services. Our services are approved by the DOE. You may qualify for federal tax credits under the IRA 25(c).  Call to find out.
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Our 100% Customer Satisfaction Guarantee

We are a locally owned and operated heating, cooling, and indoor air quality company right here in Marion that cares about our customers and the communities we serve. We also provide energy audits, blown-in and closed-cell insulation services, plus crawlspace encapsulation services. Please call us to see if you qualify for the federal tax credits under the IRA 25(c) programs. We're dedicated to providing the best value in all our products and services, all backed by our 100% satisfaction guarantee. If you're not 100% happy, simply let us know and we will do everything we can to make it right. We appreciate your business and look forward to serving you.
 
Peace of mind feels good!
 
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Contact Us Today to Schedule an Appointment

John's Mechanical Services is a complete indoor comfort contractor. Whether residiential or commercial; heating or cooling or insulation needs, we do it all. We have certified building analysis technicians and our on-staff professional who provide energy audits that qualify for the federal tax credits.  Our licensed and certified technicians can tackle even the toughest challenges. Contact us today for a free estimate or to request service.

Hours of Operation : Monday- Friday
7am- 4:30pm
Emergency Services 24/7
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Service Area
We are Proud to Serve Marion, Illinois and the Surrounding Communities Including:
 

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• Marion

• Herrin

• Pittsburg

• Carbondale

• Harrisburg
• Carrier Mills

• Eldorado

• Carterville

• Colp

• Murphysboro
• Johnson City

• West Frankfort

• Creal Springs

• New Burnside

• Goreville
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Get in Touch or Request a Quote

Give us a call or send us a message using the form below.