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Promsun LLC is a professional NY-based renewable energy company that specializes in providing clean-energy solutions to its clients. We focus mainly on Solar Photovoltaic solutions for both residential and commercial applications. Promsun’s many years of experience in the solar industry, is able to develop photovoltaic systems from conception to reality. We are a “one-stop” source for solar design, engineering, procurement and installation. No system or challenge is too large or too small. Our company prides itself on providing clients with only the best solar solutions for both rooftop and ground-mount installations – with unmatched experience in solar canopies, elevated arrays and other customized designs.
Promsun’s founder, partners and associates, collectively have over 30 years experience in the solar field and we hold the highest professional certifications in the industry. We aim to bring all our knowledge and experience to your project…and help you and our environment benefit from a quality solar installation.

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• Promsun is your local solar choice, who provides safe, simple and complete solutions so that you can take full advantage of converting sunlight into usable energy.
• Promsun has a broad range of options for financing, which include loan plans that will help you bring your solar system dreams to fruition at an affordable price.
• Our company’s certified, skilled and professional installation teams, as well as our knowledgeable customer care staff, will make sure you have peace of mind well into the future.
• Promsun is an approved solar panel installer for the Northeast Renewable Energy Fund rebate program.
• Our certified electricians and solar panel installers are all employed by us.
• Our company is licensed and bonded.
• The members of staff at Promsun will work with you from design to the completed installation.
Phone Number
(888) 407-6929

Services Offered

  • Installation
  • Financing
  • Architecture
  • Energy Auditing
  • Construction
  • Roofing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance

Workmanship Warranty

We offer the five year full parts and labor warranty + 10-25 years manufacturer's warranty


All Required Licenses in NY


Fully insured


NABCEP Certified Solar PV Installer 100414002083, 857760672

Industry Certifications

  • The American Solar Energy Society
  • North American Board of Certified Energy Practitioners
  • Solar Energy Industries Association

Manufacturer Certifications

  • PWRpartner
  • Sungage Financial Certified Partner



States Served