R-Value Insulators, LLC – much more than insulation

Select R-Value Insulators, LLC, for your home, cottage, cabin, or business insulation project. Enjoy the peace of mind that comes from working with a superior, industry-recognized insulator that:

  • abides by a strict code of ethics
  • employs proven best practices throughout EVERY project
  • uses only industry-leading technology and systems
  • ALWAYS listens to customer requirements and desires

Call R-Value Insulators LLC at (715) 420-0752 or email info@rvalueinsulators.com and ask for a FREE estimate. Learn just what we can do to optimize your home performance and comfort. And remember, our work is 100% satisfaction guaranteed!

Our founder – Samuel Hartmann

Sam - OwnerBorn and raised in Rhinelander, WI, Samuel Hartmann grew up in the building industry and has worked in the building and insualtion industry since 1997. Through his endeavors with R-Value Insulators, LLC, Samuel is dedicated to helping and improving the Northwoods community, environment, and economy. An avid hunter, fisherman, and all-around outdoorsman, Samuel personifies Northwoods values and loves the Northwoods lifestyle. He is happily married and raising a family in the Northwoods. Samuel looks forward to making your corner of the Northwoods as comfortable, energy-efficient, and economically advantageous as possible! Contact Samuel Hartmann today at 715-420-0752 or Rvinsulators@hotmail.com.

Our Insulation Technicians

Our Insulation Technicians are certified, specially trained professionals who continually strive to meet and exceed our customers’ expectations.

Our guarantee

ALL work performed by R-Value Insulators, LLC, is FULLY GUARANTEED! We test our work upon completion to show you that it’s exceptionally well done. If you’re not 100% satisfied, we will make it right.

Our Mission

R-Value Insulators, LLC, an industry-leading insulation contractor, helps homeowners and business owners throughout northern WI achieve maximum energy efficiency, cost-savings, structural integrity, and comfort through total building performance in new and existing structures.

R-Value Insulators, LLC, views your individual home or business as a complete system requiring continued balance between heating and cooling, bathroom ventilation, kitchen ventilation, water heating, and whole-house ventilation. We examine your overall building performance before doing any work. And if building performance problems reveal themselves, we take ALL necessary steps to fix them.

Our Vision

Our vision: to become the insulation contractor northern WI residents consistently recognize and rely on for total energy-efficiency, structural integrity, comfort, and cost savings in new and existing homes and businesses.

Our Values

EVERY employee of R-Value Insulators, LLC, consistently strives to:

  • Forge lasting partnerships with home and business owners throughout northern WI
  • Create TOTAL BUILDING PERFORMANCE in new and existing structures alike
  • Save customers time, money, and resources throughout every unique project
  • Craft energy-efficient, environmentally sound, cost-effective, comfortable structures
  • Complete EVERY project affordably and professionally, with reliable, lasting quality
  • Remain at the forefront of insulation technology and installation excellence
  • Embody our 100% satisfaction guarantee that ensures consistently high total building performance


Get a FREE no obligation estimate today! Call 715-420-0752 or email info@rvalueinsulators.com. Let R-Value Insulators, LLC, show you the right insulation products and proper building peformance can save money while making your home, business, cabin, or cottage its most comfortable and energy-efficient!