Business Details
37 Years
experience
Your Trusted HVAC Partner in New England
RST Thermal has been a trusted HVAC manufacturer's representative serving New England since 1989. Founded by Richard Trethewey, a fourth-generation heating professional, we specialize in high-performance HVAC systems backed by technical expertise and real-world knowledge. Our team combines decades of industry experience with hands-on education to support contractors, engineers, and homeowners across Massachusetts, Rhode Island, Connecticut, New Hampshire, and Maine. We prioritize systems thinking and long-term energy efficiency, offering technical consulting, product training, and logistics coordination to ensure optimal system performance. Our partnerships with leading HVAC brands enable us to deliver integrated solutions tailored to residential and commercial projects.Through our training lab and in-person sessions, we empower professionals with the latest installation techniques and code compliance knowledge. Our commitment to quality extends to personalized support for system design, equipment selection, and project specifications. With a focus on older homes and challenging climates, we help clients navigate system compatibility and achieve energy savings. Our team's heritage in the trade, including national recognition through This Old House, reinforces our dedication to smarter, more efficient HVAC solutions. As a locally rooted yet nationally connected partner, we remain committed to elevating industry standards through innovation and education.
Services
HVAC System Design
Technical Consulting
Product Training
Equipment Specification
Logistics Coordination
Details
- Year established: 1989
Highlights and features
- We offer 35+ years of HVAC industry expertise since 1989
- Our team provides manufacturer-trained technical support and consulting
- We host hands-on product training sessions with industry experts
- We partner with leading HVAC brands for comprehensive solutions
- Our regional expertise addresses New England's unique climate challenges
What people say
Knowledgeable team
Reliable support
Successful projects
Effective training
Technical expertise
Services
HVAC System Design
Our team assists with detailed HVAC system design for residential and commercial projects. We ensure proper equipment matching and energy efficiency through code-compliant layouts. Contractors and engineers receive tailored recommendations for optimal system performance.
Technical Consulting
We provide expert guidance for matching HVAC systems to specific applications. Our consultants work with professionals to address compatibility challenges in older homes and commercial settings. Solutions emphasize energy efficiency and long-term performance.
Product Training
Hands-on training sessions cover installation techniques, code compliance, and new technologies. Our lab features real-world equipment setups for practical learning. Programs include manufacturer-led sessions and on-site training options.
Equipment Specification
We help professionals select appropriate HVAC equipment for residential and commercial projects. Our team provides detailed specifications for proposals and ensures compatibility with project requirements and local codes.
Logistics Coordination
We manage product staging and delivery logistics across New England. Our coordination ensures timely equipment arrival for residential and commercial projects. Services include order tracking and distribution support.
People
Evan Trethewey
President
Evan Trethewey leads RST Thermal with a focus on advancing HVAC innovation and expanding technical training programs. He continues the company's legacy of systems thinking and energy efficiency.
Richard Trethewey
Vice President
Founder Richard Trethewey brings four generations of HVAC expertise to RST Thermal. His industry leadership includes national recognition through This Old House and shaping the company's educational initiatives.
Maryellen Hickey
Operations Manager
Maryellen Hickey oversees daily operations and technical support at RST Thermal. She coordinates training programs and manages client communications for residential and commercial HVAC solutions.
Rich Bialobrzewski
Engineered Products Consultant
Rich Bialobrzewski specializes in matching engineered HVAC products to complex commercial applications. He provides technical expertise for system integration and performance optimization.
Kevin Bergeron
RST Representative
Kevin Bergeron serves as a technical representative connecting professionals with HVAC solutions. He supports contractors with product selection and system design consultation.
Questions
What HVAC services does RST Thermal offer?
We provide system design, technical consulting, product training, equipment specification, and logistics coordination for residential and commercial HVAC projects.
Do you offer training for HVAC professionals?
Yes, we host hands-on product training sessions with manufacturer experts at our Fall River lab and offer on-site training options.
Which areas do you serve?
We serve Massachusetts, Rhode Island, Connecticut, New Hampshire, and Maine with technical support and HVAC solutions.
Can homeowners work directly with RST Thermal?
While we primarily serve professionals, we connect homeowners with certified contractors for HVAC system upgrades and installations.
What brands do you represent?
We partner with leading HVAC brands including Unico, Enertech, Hisense, RenewAire, and Thermolec for comprehensive system solutions.
Are there educational resources available?
Yes, we provide technical guides, code compliance information, and industry updates through our website and training programs.
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