J Gar

Review of Mark Group, Inc.

I was skeptical at first, but we're saving a ton o...

I was skeptical at first, but we're saving a ton on our energy bills now, and our home is much more comfortable. We have an old house and it got very drafty in the winter, but now I can walk around my home without a winter coat on! I recommend Mark Group to anyone whose house gets too hot or too cold. Thanks!