Minnesota Commercial and Residential Heating and Cooling Contractor

What Our Customers Have to Say


Greg and GTS are an incredible package: thorough, knowledgable, considerate, prompt, efficient, cost-effective, very professional and a pleasure to work with. I've never run into a better contractor, subcontractor or vendor in the quarter century of working in the real estate and construction industry. We recommend GTS HVAC, Inc. unconditionally.

Donna and Ken Engel, Minneapolis

I would recommend GTS for all heating and air conditioning needs. My first experience with GTS was on the installation of my new home's heating and air conditioning in 2004. Since then, I've recommended GTS to both my boss and my mother because of the skill, honesty and integrity that they bring to the table.

Gary N., Minnetrista

This was the first house I built and generalled on my own. Working with GTS from early on in the bidding process to the follow-up once we were living in the house made the HVAC component of the construction a good experience. I received top quality, professional service and top of the line HVAC equipment - all for a valued price. I strongly recommend GTS for your HVAC needs.

Steve Lillehaug, Chanhassen

GTS HVAC, Inc has proven to be prompt, efficient, courteous, and cost effective on every residential and commercial project I have worked with them on. These qualities are hard to find with many of today’s contractors. I would highly recommend them for any project size and type.

Dan Meeker, Architect

I had worked with Greg Sundby prior to building our 81,000 square foot office/warehouse. GTS HVAC (Greg) provided me a good value from design, installation and service. This building project was an important project for Delta Industrial Services, Inc. When choosing GTS HVAC, Inc., our decision was based on our past involvement with GTS HVAC and Greg for there knowledge of application for design, courteous service minded attitude, and competitive pricing. I am pleased with our decision, and would recommend Greg and the Team at GTS HVAC, Inc. for your HVAC needs in new construction, tenant build out, and service again.

Dave Schiebout President
Delta Industrial Service Inc.

GTS HVAC did a great job for me.  This was a complicated house and they installed a sophisticated heating and ac system that had to be retrofitted into an architectural plan that made for large open spaces.  So GTS had to be careful where they placed things and they accomplished this with real finesse.  Further, they also installed five gas fireplaces throughtout the house and a difficult kitchen downdraft vent for the cooktop along with an air exchanger in the basement.  GTS was very knowledgeable, easy to work with; bringing good solutions along with the problems they identified, and best of all they showed up when they said they would.... and I really appreciated that relability.

Marshall Masko

Contact Us

4018 Joyce Lane
Brooklyn Center, MN  55429

(612) 619-0589 service
(612) 590-2765 sales
(763) 535-3181 fax