HVAC Retrofit & Design Build Projects
Two 90-ton rooftop HVAC units are being replaced on a college campus—additional structural service platforms created for this project.
We’re the team you call when the project gets complicated. At Trinidad Engineering, we specialize in solving real-world problems in occupied buildings, aging systems, and retrofit conditions that demand precision and accountability. These projects showcase our ability to deliver clarity, confidence, and performance—no matter the challenge.
Engineering Projects and Scope
Team Projects
Colleges & Universities
- Tufts University – Labs, boilers, plumbing, controls, lab exhaust, HVAC and electrical design (Boston & Medford, MA)
- Babson College – Boilers, chillers, cooling towers, controls, energy use, special reports, HVAC, electrical, and structural design (Wellesley, MA)
- Bentley University – Rooftops, chillers, boilers, plumbing, hot water, HVAC, plumbing and electrical design (Waltham, MA)
- Mount Ida College – Heating and DHW boiler design for 5 buildings, HVAC and plumbing (Newton, MA)
Government / Military
- Hanscom AFB – Chillers, natural gas and HVAC projects across several campus buildings (Bedford, MA)
- City of Manchester, NH – Steam to condensing boiler retrofit at City Hall, High School boiler replacements
- Town of Arlington, MA – High efficient boiler retrofit Police Station, Rooftop replacements Elementary School
Religious / Private Institutions
- St. John's Church – Steam boiler replacement and oil-to-gas conversion for school HVAC (Wellesley, MA)
- Carroll School – Converted DX and duct heaters to chilled/condensing hot water systems. HVAC + electrical (Lincoln, MA)
- New England Academy – Updated heating system to hybrid, heat pump and propane in gym HVAC (Marlboro, MA)
- Edge Sports Center – Phase 2 Expansion, Ice Rink, lockers, DHW, Electrical, HVAC (Bedford, MA)
Commercial Clients / Owners
- Hanover Insurance – Vintage HVAC rebuilds: AHUs, duct systems, controls, vacuum steam boiler feed tank (Worcester, MA)
- NaviSite – Data center HVAC, emergency chiller design, multi-state data centers. HVAC, electrical, and structural
- Marine Polymer Technologies – Cleanroom RTU replacements, controls upgrades, fixed free cooling (Tewksbury, MA)
- Pfizer – Tower evaluation and control specs (Cambridge, MA)
- Boston Scientific – Lab & executive office HVAC. Fire protection, plumbing, and electrical design
- New Balance – Prototype lab + custom hood design, HVAC
Reports & Studies
- Electric & Gas Utilities of New England – Energy studies for custom energy rebates (5-year span)
- Sun Microsystems – Field-measured flows & energy use across 3,200 tons of chillers
- General Mills – Warehouse gas energy use study
- Polaroid (New Bedford) – 11,000-ton process cooling tower design, PM controls, energy reports, rebates
- ISP Freetown Fine Chemicals – Process cooling tower designs, rebate-based engineering
- Progress Software – Data center HVAC review and report
- Brooks Automation – Process cooling, paint booth review, HVAC reports
HVAC Design Categories
Clean Rooms & Labs
- Charles River Labs – Animal lab HVAC
- Whitehead Institute – Animal lab HVAC
- Hester Yale – Large cleanroom design
- Advanced Electron Beams – Process cooling evaluation
- Wyeth Biopharma – Cogen ventilation
- New Balance – Custom lab hood design
- Tufts, Boston Scientific, Phosphorex Inc. – Advanced lab and HVAC projects
Data Centers
- NaviSite – Backup 400 ton chiller design, additional multi-state cooling design
- Progress Software – Air flow review, HVAC
Hotels, Warehouses, Retail
- Le Meridien Hotel – Room HVAC design
- L. Knife and Son – Multi-state refrigerated warehouse design (beverage industry)
- General Mills, Polaroid, ISP – Warehouse/process cooling and rebate-based design
Churches, Schools, Condos
- St. John's Church – Oil-to-gas steam boiler retrofit
- Carroll School, Mount Ida, City of Manchester – Boiler conversions and HVAC upgrades
- Mildam Condominium Association – Boiler review
- New England Children’s Center – Gas design for emergency generator
Specialty or Niche
- Hester Yale – Hydrogen piping, cleanroom, stress analysis, GC + engineering PM, full MEP reports (Billerica, MA)
- Forget-Me-Not Crematories – High-pressure gas piping + out-of-state certification
- PB Power – Wallingford Energy Project, piping design
- Jones Lang LaSalle – Custom rooftop/chiller exhaust and alarm system
- Baycove Properties – VRF and construction review
- A. Schulman – Natural gas makeup air & gas booster system, HVAC
- Fraser Engineering – High-pressure gas and steam pipe design, stress calcs, HVAC
- Organogenesis – Cell Incubator custom air handler design, HVAC
- Schott Electronic Packaging – Existing conditions evaluation plating ventilation and exhaust, HVAC
- Tuft University – Ultraviolet installation ductwork retrofit, health center, HVAC
- Wayland Rod and Gun Club – New shooting range ventilation system, HVAC
- Edge Sports Center – Phase 2 Expansion, Ice Rink, lockers, DHW, Electrical, HVAC (Bedford, MA)
what our customers have to say
What defines our services is not project quantity but project quality. Architects, Contractors, Directors of Capital Projects, Directors of Engineering, Trades all say we deliver not only great engineering but we are very customer focused.
Here are some more reviews …
“Our small school engaged Trinidad Engineering for a total HVAC replacement in one of our buildings. From the onset I was impressed with Mike's attention to detail and his drive to address every concern, even when it was beyond his scope of work. Mike relentlessly chased down every issue, no matter how big or small. He was constantly forthcoming with information and proactive to keep the larger team on time, on budget and on task. Mike was 110% dedicated to our project and delivered exceptional service and support.”
- Danielle Pedreira, Director of Facilities and Capital Projects, Carroll School, Lincoln, MA.
”With Trinidad Engineering, we are in great hands. Mike spends a lot of time understanding the customer requirements down to the nuts and bolts. He is very resourceful and investigates all possible designs and then provides the optimal one. As a result of his efforts, there are very few change orders and errors. Our projects are completed on-time and on-budget. Mike takes a lot of pride in his work and is focused on delivering the highest degree of quality service.”
- Cliff Migneault, Manager Engineering Services, Jones Lang LaSalle | Minuteman Park Andover, MA 01810
“Trinidad Engineering is one of the most detail-oriented firms we work with. Mike spends days, not hours, documenting each component of a system, literally down to the nuts and bolts. He uses this information to understand opportunities for efficiency upgrades in the most cost-effective way possible. He spends time understanding the maintenance required on a system and ensures that ongoing maintenance can be reduced and is safer by providing easy access to system components. For us, Mike's thoroughness has resulted in no change orders on our last three projects dating back to 2015.”
- Mark Remillard, NCARB, PMP, LEED AP, Facilities Project Manager, The Hanover Insurance Group, Worcester, MA.
“Trinidad Engineering has worked with Babson College on a hand full of mechanical projects and studies, we find them to be very thorough and very hands on through the projects. On the projects Trinidad designed for us there are no change orders which speaks volumes for the time and effort they spend on getting the scope and details right. Mike has always made himself available to Babson and their contractors when needed and assured the work as performed to the specified specs. We enjoy working with Mike and highly recommend his work to anyone who needs his type of services.”
- Andy Moutinho, Babson College, Senior Director, Operations, Facilities Management And Planning, Wellesley MA.
