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18 Years
experience
Your Solar Hot Water Installation Experts in Cohasset
RES Solar has specialized in solar hot water solutions for 15 years, serving residential and commercial clients across Massachusetts. Our team delivers turnkey installations, leveraging high-quality SRCC-certified equipment and advanced energy modeling to optimize system performance. As a NABCEP-certified installer and WBE-certified business, we prioritize customer satisfaction through comprehensive support, including financing partnerships with MassSave and Clean Energy Credit Union. Our expertise extends to solar pool heating, radiant floor systems, and commercial projects, with over 600 systems installed to date.

We provide 24/7 online monitoring, annual maintenance, and tailored design solutions to meet diverse energy needs. Backed by federal tax credits and state incentives, our systems reduce energy costs by 70-90% for homeowners and thousands annually for businesses. We collaborate with strategic partners like SunPower and Gexpro for photovoltaic installations, ensuring holistic renewable energy solutions. Our commitment to innovation and sustainability has earned recognition in projects for institutions like UMass Lowell and the Massachusetts Maritime Academy.
Services
Solar Hot Water Installation Solar Pool Heating Radiant Floor Heating Commercial Solar Systems Energy Monitoring System Maintenance Tax Credit Assistance Financing Solutions Design-Build Projects Permitting Services
Details
  • Year established: 2008
Highlights and features
  • 15 years of specialized experience in solar thermal installations.
  • NABCEP-certified professionals ensure industry-leading standards.
  • Installed over 600 high-efficiency solar hot water systems.
  • 0% financing options available through MassSave partnerships.
  • WBE-certified business committed to community and sustainability.
Associations and certifications
  • NABCEP
  • Mass CEC
  • WBE
What people say
Professional crew Helpful support Effective solutions Significant savings Great service
Services
Solar Hot Water Installation
Our solar hot water systems reduce energy bills by 70-90% using high-efficiency collectors and tanks. Custom designs integrate with existing systems, qualifying for 30-40% federal tax credits. With 15 years of experience and NABCEP-certified installers, we ensure optimal performance and durability for residential and commercial properties.
Solar Pool Heating
Solar pool heating extends swim seasons by 2-3 months while eliminating propane or electric heater costs. Systems utilize existing pool pumps and last decades, paying for themselves in 3-4 years. Our designs meet local code requirements and include stainless steel hardware for durability in high-wind areas.
Commercial Solar Systems
Commercial solar hot water systems cut heating costs by 60-70% through rebates and incentives. We conduct energy modeling to optimize system size and storage, offering turnkey solutions with engineering, permitting, and financing options. Systems typically achieve payback within 3-5 years while reducing CO2 emissions.
Energy Monitoring
Our web-based monitoring platform provides real-time performance data for solar systems, enabling remote adjustments and maintenance alerts. Customers access live energy production metrics, ensuring maximum efficiency and transparency. This service includes annual maintenance and operations manuals for long-term system reliability.
Radiant Floor Heating
Solar-powered radiant floor systems provide efficient, comfortable heating for homes and buildings. Custom designs integrate with existing boilers or operate independently, qualifying for federal tax credits. Systems combine solar thermal collectors with underfloor tubing to deliver renewable, cost-effective space heating solutions.
People
Erica Boyle
President / Design & Sales Manager
Erica Boyle leads design and sales at RES Solar, leveraging 15 years of solar industry expertise. She ensures customer satisfaction through personalized solutions and has driven the installation of over 600 systems. Her focus on education and community outreach strengthens RES's market leadership.
Joe Williams
Installation Manager
Joe Williams oversees RES Solar's installations, ensuring precision and quality in every project. With extensive field experience, he manages teams to meet strict deadlines and code requirements. His technical expertise guarantees durable, high-performance solar systems for residential and commercial clients.
Mathew Parent
Business Development
Mathew Parent drives business growth at RES Solar, building strategic partnerships and expanding market reach. His focus on client relationships and renewable energy advocacy has strengthened the company's presence in Massachusetts. He connects customers with financing and incentive programs to maximize savings.
Questions
What tax credits are available for solar hot water systems?
Homeowners qualify for a 30% federal tax credit plus 10% for American-made systems. Low-income households may receive additional incentives. Commercial systems qualify for 30% ITC and depreciation benefits.
How does solar pool heating work?
Solar pool heating uses rooftop collectors to warm water via sunlight. A differential controller diverts water when collectors are hotter than the pool. Systems utilize existing pumps, reducing operating costs by eliminating gas or electric heaters.
Are financing options available for residential systems?
Yes. MassSave offers 0% interest loans with no down payment. Clean Energy Credit Union provides low-interest financing for pool heating. These options make solar installations affordable with immediate savings.
How long does installation take?
Residential installations complete in 1-2 days. Commercial projects vary by size but typically finish within a week. Systems include stainless steel hardware for durability and meet local code requirements for high-wind areas.
What maintenance do solar systems require?
Systems require minimal maintenance. We provide annual checkups and O+M manuals. Pool systems need winterization with antifreeze, while hot water systems include free live monitoring for performance tracking.