Trusted by over 1,000 clients — providing commercial services across Illinois since 2007.
EXPERT HVAC & MECHANICAL SERVICES
Our team is guaranteed to deliver fast, dependable solutions for all your service needs.
HVAC INSTALLATION
We install new AC and heating systems that are efficient, reliable, and built to last.
HEATING & COOLING REPAIR
Fast, honest repairs to get your heat or AC working again without the runaround.
BOILER SERVICES
We handle installations, repairs, and tune-ups to keep your systems safe and reliable.
PREVENTATIVE MAINTENANCE
Seasonal maintenance to boost efficiency and help you avoid breakdowns.
COMMERCIAL MECHANICAL
We provide mechanical service for schools, churches, businesses, and other facilities.
FAST & RELIABLE SERVICE
If the unexpected happens, we respond quickly when you need help most.
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Proudly affiliated with Chicago Pipefitters Local 597.
why clients choose tnr mechanical
Quality work, honest service, and a team you can count on.
Licensed and Insured
We are licensed, insured, and committed to safe, code compliant work.
Union Affiliated Technicians
Union trained technicians delivering skilled, dependable service.
Serving Illinois Since 2007
Over 1,000 satisfied clients served across Illinois and surrounding areas.
Fast Responses and Honest Pricing
We respond quickly, give clear quotes, and offer honest pricing every time.
what our clients say
Why commercial businesses continue choosing TNR Mechanical.
“We’ve trusted these guys for years. The team is great. They explain everything clearly with fair pricing. We don’t go anywhere else for our needs.”
“Tom fixed our systems up in no-time. He always get the job done right and is super easy to work with. We highly recommend TNR to anyone.”
“We needed a company we could trust to replace our huge rooftop unit. TNR Mechanical was fantastic! Tom and his team are great at what they do.”
From the first quote to project completion, we make the entire process simple and stress-free.
how it works
Get In Touch
Tell us what you need and we’ll get back to you quickly with clear, honest pricing.
Schedule Your Service
We’ll schedule a time that works best for you and prepare everything in advance.
Quality Work Completed
We finish the job with care and ensure your system is running exactly as it should.
We proudly serve Illinois and nearby regions, including western Indiana and southern Wisconsin.
Below are some of the areas we frequently work in, but we’re happy to travel where we’re needed.
our service areas
Arlington Heights
Glenview
Schaumburg
Algonquin
Gurnee
Lake Villa
Chicago
Elmhurst
Addison
Downers Grove
Des Plaines
Mount Prospect