Let RVI help make your home more comfortable and energy efficient. We can solve common problems like ice dams, moisture, drafts and high heating bills.

The RVI Process:

  • Home Energy Assessment
  • Provide custom-built air-sealed access panels
  • Customized recommendations
  • Insulation removal
  • Air seal
  • Insulation
  • Ventilation
  • Post testing

Retro Services




Existing Home Project Gallery


Homeowner Reviews

The RVI process is consistent…

I have recommended Sam Hartmann and his business, R Value Insulators, to several other homeowners. The WI Focus on Energy program introduced me to R Value Insulators. The experience has been a positive one due to the attention to detail, professionalism, and dedication to home comfort combined with air quality, based on science. My home is a healthier residence since the evaluations, and I greatly appreciate the personalized service.

Shawn Pflugardt

RVI is customer focused…

We are so thankful we turned to RVI for our Home Energy Assessment! While preparing for a new addition to our family, we were worried that we may have needed to purchase new windows for our home. A large, costly project was not something we were planning on before a baby arrived! Fortunately, we had our home assessed and they were able to show us that there were much smaller projects we could do to improve our homes’ energy use. RVI met with us quickly and helped us come up with a game plan for the most effective projects we could tackle. We even learned that the windows were not in need of necessary replacement! They also connected us with the people we needed in order to make the recommended updates to our home. The test helped us feel more confident in our home efficiency. We highly recommend turning to RVI for your home needs! 

Jenny & Eric Prom

The RVI Process delivered a 40% improvement on heating costs…

When we decided we wanted to improve the insulation of our home, we asked the area’s top building contractors who they recommended and it was RVI. They provided us a quote and scheduled our job, then completed the project, professionally and efficiently. The results were amazing. We are seeing a 40% improvement in our heating costs in our house and detached workshop in a winter that was colder than the previous year! Need I say more?

Mark Cobb