GRT Mechanical Services

GRT Mechanical Services

5.0(3 reviews)


GRT Mechanical Services offer a full-service of HVAC solutions including repair, installation, and more.


3 employees
16 years in business
Serves Darien , IL

Social media


Building height

One story, Two stories, Three stories

AC services

Install a new AC unit, Replace an existing AC unit, Remove an old AC unit, Install ducts and vents

AC system type

Split system, Packaged system, System recommended by the pro, I install other systems

Who's buying the AC unit

Customers who have purchased a unit, Customers who have not purchased a unit yet, Customers who want me to purchase the unit

Air handler location

Basement, Attic, Closet, I will make recommendations on location, I will install air handlers in other locations

Condenser location

Ground floor, Roof, I will recommend a location, I will install in other locations

Property type

Home, Condo or apartment, Townhouse, Commercial

Property size

Less than 1,000 sq ft, 1,000 – 2,000 sq ft, 2,000 – 3,000 sq ft, 3,000 – 4,000 sq ft, More than 4,000 sq ft


0 reviews


Sherwin B.

Very dependable and reliable
Does good work
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July 17, 2019


Chew V.

The guy you can trust. Fair labor rate and pricing.
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July 17, 2019


Deb B.

Glenn has been such a gift to us. He installed a brand new a/c unit a few years ago and it’s top quality. Best we’ve had as a 35 year homeowner. Our electric bill was cut in half. He improved our exchanges for a better flow and it’s made a huge difference. We wouldn’t even have known to do it. His work ethic is old school; comes early and stays late. Gives it all he has always. We totally trust him which is a hard thing to find these days. We have him out twice a year to make sure our HVAC is working properly. He EVEN answered our texts on a holiday weekend AND came by that Monday. We always feel safe and sound after he leaves. That’s a great blessing. I highly recommend Glenn!
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July 17, 2019

Frequently asked questions

Informative of what their system needs in repair and in installation 

Services offered

Furnace And Heating System Installation Or Replacement
Thermostat Installation
Central Air Conditioning Installation