NESEA Business Member Directory

Our specialty is environmentally sensitive residential work in the New England region. We enjoy the collaborative process of bringing ideas to fruition with clients and their contractors.

RST Thermal is a manufacturer’s representative in the New England area covering Eastern Massachusetts, New Hampshire, Maine, Connecticut, and Rhode Island for multiple leading manufacturers whose products offer a systems approach to comfortable heating and cooling. We provide technical and sales support to our wholesale distributor partners and contractors. For homeowners, we provide geographic lists of installing and servicing contractors to help them find the “best fit” for the project to be done.

Award-winning, full-service Boston area residential design-build company committed to responsible design and construction practices. Experts in energy efficiency and weatherization.

Shelterwood Construction is an award-winning residential construction company based in Central Vermont. We specialize in building high-performance and high-design homes. We partner with the best architects to build some of the most efficient and healthy homes in the country. Shelterwood Construction assembles the best project team for each home we build. We are a collection of native Vermonters, immigrants (to Vermont and the USA!), parents, musicians, backcountry skiers and snowboarders, artists, surfers, mountain bikers, community volunteers, and craftspeople. Sustainability for both people and the planet is at the core of everything we do. We work on projects within one hour of Waitsfield, Vermont.

Shoreline Builders provides new construction and addition/renovation services to residents on Boston's South Shore and Cape Cod. Our approach to developing a high-performance home is to craft a plan that results in a durable, comfortable, healthy, energy-efficient, and environmentally responsible place for our clients to live. At Shoreline Builders, we create an experienced collaborative team of client, architect, and builder that combines our expertise in design, building science, and project delivery with the values of our clients.

South Mountain Company (SMCo) is an integrated architecture and engineering, building, interior, and solar company located in West Tisbury, MA (on the island of Martha’s Vineyard). Our staff of 40 includes architects, engineers, interior designers, carpenters, cabinetmakers, solar installers, and administrators - all rolled into one multi-disciplinary team. We are a triple-bottom-lined worker-owned cooperative and certified B-Corp. Our mission is to uplift our community and environment by designing and building for a just future.

We approach each project as an opportunity to use our professional skills to create buildings that exemplify the right balance between aesthetic integrity and environmental concerns. Sustainable design encourages us to use our resources efficiently while creating healthier buildings. As the Principal Architect, Sheldon Pennoyer is committed to being directly involved with each design from start to finish, ensuring that your project, both architecturally and environmentally, equals your highest expectations.

In addition to innovating small duct high-velocity systems, SpacePak is the industry leader in air-to-water heat pump technology since introducing the modern hydronic solution to the North American market in 2011. Since then, SpacePak has taken great pride in being the driving force behind this promising technology's adoption and helping accelerate our country's shift toward a cleaner and greener future. Thanks to our parent company, Mestek, and its 75-year-long history as an expert and leader in hydronic heating and cooling, SpacePak has found itself uniquely qualified to provide industry professionals with the proper training, support, and equipment that an emerging market demands.

From offices in New York City and Portland, Maine, we have driven energy efficiency into over 25,000 units of multifamily buildings, commissioned $900+ million in new construction, and provided leadership in energy efficiency since 1990. Early in the company's history, Sparhawk Group began with pay-for-performance energy efficiency projects delivering 3.5 megawatts of electrical power conservation at industrial, institutional, commercial, and government buildings. These projects were commissioned to ensure savings, and thus, payments for performance were realized. This grounding in energy performance and commissioning drives our company vision to this day.