About Us

Whatever I do, I try to be the best

I'd like to tell you a little about Comet Air Duct Cleaning and how we originated.
Hi, my name is Gary Harstad and I am President of GD Construction Inc.  I have been a General Contractor for over 30 years, building homes from the footings to the shingles, and everything in between. I do know a thing or two about the Construction Industry.

In the early 90s, I started a Custom Cabinet Shop called Gold Dust Collection.  Here I built furniture and 
custom kitchen and bath cabinets in and around the Billings area.  You can view my work here:  GD Construction on Facebook.

 Later I Incorporated and started GD Construction Inc. We worked with many of the box stores in Billings and have been doing kitchen and bath cabinet installations and remodels in new and existing homes. In the remodeling process of tearing out the old and installing new cabinets, we almost always come upon heat vents that come up under cabinets. It's what we would see in those heat ducts that prompted us into the air vent cleaning service. The dust, dirt, sheetrock dust, insulation and yes, the unthinkable that we would see in those air ducts was not very pretty. I'm quite sure in most homes it really is a dirty little secret in there, and if people knew, I'm certain they would want to do something about it.

We did a lot of research and found RamAir to be the safest and most effective duct cleaning system out there. With my many years in the construction industry, I knew the 3 major factors in cleaning heating and cooling vent systems would be:

#1-Getting deep into the system.  
#2- Getting the debris out.  
#3- Do all this without making any mess

 With newer homes and commercial buildings now using flex duct systems, with a brush system, it is very easy to permanently ruin a duct system. Just by having a loose item such as a screw in the duct could tear it to pieces with the brush system. I couldn't imagine cleaning them any other way than with the Comet Air Duct Cleaning System.  

One of the first jobs Comet did was for a Sportscaster on a TV news station. When he came to the door, the first thing he said was “I personally think this is a total waste of money, but if this will make my wife happy, come in.” When we had everything set up and ready to begin cleaning, he was at the dining room table working on his laptop and I asked him and his wife if they would like to watch. As they were both standing right there Trei began the cleaning, and instantly you could see the debris going into the dome. I could see the expression on their faces as their jaws hit the floor. Both were shocked as they saw what was coming out. He instantly became a believer in Comet Air Duct Cleaning. This is the WOW FACTOR because seeing is believing.

If you are in Bozeman go here