About Us

Robert R. Frechette

Bob FrechetteBob is a Home Performance Energy Evaluator, BPI Energy Auditor and building Analyst through the Maine Home Performance with Energy Star program. Bob is also certified as a Maine State Energy Auditor and Weatherization Technician. Bob is the owner of HeatMizer, LLC providing unbiased energy evaluations, energy audits, and efficiency consulting and contracting services to homeowners, building owners, architects, and others. Other services include energy modeling and design of new and existing building retrofits and renovations utilizing the latest building science and diagnostic tools available.

Prior to HeatMizer LLC, Bob was a home building contractor, draftsman and also continues today to run his own Property Management business Keystone Management. Bob has over 25 years of combined experience in the construction and remodeling industry, engineering and design, custom home building, modular and systems built construction, renovations and home performance.

Bob is a native to Maine but actually began his building career while attending school in Atlanta Georgia for architectural design. Bob worked for Saw Horse Construction in the Atlanta area and soon came back to Sanford Maine where he has been for over 25 years building and remodeling in the residential and commercial sector. Some of these builds include his own home, efficiently built with Stucco and foam block with heat radiated floors. As well Bob has experience with historical renovations and design, ADA dwellings and access awarding him several opportunities to work with Maine State Housing (MSHA), passive home and solar designs as well as many other custom projects and renovations.

Contact Bob and learn how to:

  • Lower your monthly bills
  • Reduce your carbon footprint
  • Increase your personal comfort
  • Improve the Indoor Air Quality of your Home
  • Increase the value and longevity of your Home
  • Prioritize your energy needs and determine the right solution


  • Efficiency Maine Program Contractor
  • Maine Home Performance Energy Evaluator
  • BPI Energy Auditor and Building Analyst
  • ME State Energy Auditor and Weatherization Technician
  • EPA Lead Certified
  • Oil and Propane Limited Auditor Tech License

Member of the following

  • MABEP Maine Association
  • of Building Efficiency Professionals
  • MIAQC Maine Indoor Air Quality Council
  • USGBC U.S. Green Building Council
  • HBRA Home Builders and Remodelers Association of Maine
  • NAHB National Association of Home Builders
  • MHBA Modular Home Builders Association
  • Sanford Chamber of Commerce