A Guide to Joining Our Preferred Contractor Network

South Carolina Contractor Network

Overview

The Sustainability Institute is a nonprofit organization dedicated to providing energy efficiency upgrades and critical home repairs to low-income families and individuals. Our goal is to create healthier, safer, and more energy-efficient homes. To achieve this, we rely on a network of skilled and reliable contractors.

We are inviting experienced and qualified contractors to join our Preferred Contractor Network. By partnering with us, you will have the opportunity to serve your community, grow your business, and contribute to a more sustainable future.

We are currently seeking contractors for the following programs:

Weatherization Program:

Scope of Work: Installing insulation (attic, wall, floor), air sealing (drafts, cracks), and other energy-saving measures.

Critical Home Repair Program:

Scope of Work: Addressing essential health and safety issues, including roof repair/replacement, structural repairs, plumbing, and electrical work.

CLICK HERE TO JOIN

Why Partner With The Sustainability Institute?

Consistent Project Flow
We have a steady stream of pre-qualified projects for weatherization and critical home repairs, providing you with consistent work.
Prompt Payment
We guarantee timely payment upon successful completion and approval of work.
Streamlined Process
We handle the client intake, program qualification, and project management, allowing you to focus on what you do best—the work itself.
Marketing & Visibility
We promote our network of contractors to our clients and community partners, enhancing your reputation and reach.
Serve Your Community
Make a tangible difference in the lives of local families by improving their living conditions and reducing their energy burdens.

Contractor Application

Before you begin, please ensure you have the following four documents ready to upload: your W-9, Business License, current Contractor or Specialty License, and a current Certificate of Insurance (COI). To prevent any delays in processing, you must complete all required fields and provide the requested files when prompted.

Testimonials

  • Thanks to Mitch and the Sustainability Institute, I'm enjoying a much more comfortable and energy efficient home. I'm so grateful for the insulation and other work that was provided. Your assistance was much needed and so greatly appreciated! Thanks again!
    Lillie Brown
  • Mitch and his team at the sustainable institute are amazing. I own a Southern Roofing here in Charleston and their team is great to work with, communicate well, and serve an amazing mission with sustainability. I would highly recommend working with their team.
    Mac Schott
    Southern Roofing
  • I can’t thank Sustainability Institute and Mitch for communicating with me, letting me know what was being done and when to expect it. All the work on my home they did was amazing. I’m so thankful for all they did. They were so precise in everything, from insulation to sealing air leaks and many more upgrades. As a senior on a fixed income it gave me hope again to stay in my home. God bless all of you.
    Theresa Haynes
  • Mitch, Derrick and his team showed up as promised and took the time to get things done correctly. Highly recommend for improving energy efficiency and saving money on utilities.
    Mike Jefferson
  • I can't give enough praises and thanks to The Sustainability Institute for all the work that was done to my elderly mother-in-law home . Everything was done with care , respect and compassion for her and her home . You all went above and beyond what we expected and we are very grateful. She's now enjoying her energy efficiency home . Special Thanks to Mitchell Houck
    Elliot Worix
  • The Sustainability Institute has been an incredible resource for us to refer customers to in search of improvement funds and grants. The staff is always courteous & prompt in their follow-up.
    Holy City Heating & Air, LLC
  • Thank you for the work that was done to my home! I am very grateful for the help you provided. Your organization is great! It was a pleasure working with Mitch.
    Thelma Gadsden