Goddard Schools-

Thanks again very much for coming to our school (Goddard School, Short Pump) and sealing our ducts.  It is a good feeling knowing we are sealed up tight and ready for the winter (and summer!).

I spoke with you when you were here about possibly checking the duct work in our house. Any information would be appreciated.

Chris Crowley


MacBone Industries

December 15 2014

Our company, MacBone Industries Ltd., located at 9301 Old Staples Mill Road, would like to offer our sincere thanks and appreciation for the outstanding workmanship and service your company provided to us this past summer. Specifically, the Dominion Duct Sealing Program, completed at our facility by a knowledgeable and professional STI team.

We have seen a significant improvement in our energy efficiency since the completion of the project. This equates to real dollars, which helps our 5 person, family owned small business.

Programs like these truly do make sense, and without Mr. Letts bringing it to our attention, we would still be wasting excessive energy and money.

Please accept this letter as our testimonial for receiving excellent service from STI.

John R Sniffin



Richmond Time Lapse Photography-

“My photography business was in need of a very specialized solar charging system and Sustainable Technology Institute really came through for me. I perform time lapse photography and provide my clients with advertising videos that show their projects from start to finish. As my business grew, I came to need a remote stand alone camera system to capture projects that take place for as long as a year. The folks at STI really know their stuff when it comes to solar and after a short meeting where I described my needs, they put together a great design to power my cameras with solar panels. Now I have a compact camera station that’s equipped with a solar panel mounted on top, a battery that is charged by the panel, and a charge controller that automates everything. The system works flawlessly. After such a good experience with STI, I later went to them with advice on how to heat my pool with solar. Again, they knew exactly what I needed, based on the size of my pool- and I ended up buying a solar thermal system that extends the months I can use my pool. Thanks STI!”

Jonathon Hamer
Richmond Time Lapse Photography


Kingsland Baptist Church-

I want to say a few words about the team that worked on our duct project, they were fantastic.  They went above and beyond, we feel,  in working around our schedule and they seemed to fix problems as they saw them.  We at Kingsland feel we will benefit from their work far beyond the intended scope.  Thank you for a job well done and God bless.


Medallion Pools-

Dear STI,

I just wanted to let you know about our recent experience with your company.  I know usually the previous sentence is followed by a laundry list of complaints but that is definitely not the case here.  Every person I spoke with was friendly and helpful.  Your on-site supervisor was very customer oriented and conscientious.  If I had questions about what was going on he would take the time to answer them and didn’t make me feel like I was bothering him or holding him up.  The crew cleaned up after themselves and overall left a very good impression of your company.  When one of the crewmen spilled a large iced tea down our carpeted stairs, your supervisor apologized profusely and came in the next day with some carpet cleaner and scrubbed it all clean.

Several people have commented on how much better our HVAC systems are working since the job was finished.  The Dominion Power program is excellent and I would recommend other companies to take advantage of it.  STI did everything they promised in a professional and customer service oriented manner and I would definitely recommend you to anyone who does participate in this program.


James Hinkle

Senior Manager

Medallion Pools