Reliable Building Automation & Gas Detection — Since 1993
Serving commercial and industrial clients across Massachusetts and New England
About OTC
Let Us Help With Your Building Automation Systems
O’Leary Temperature Controls has more than 30 years of experience in the building automation and gas detection industry. We deliver outstanding service through our extensive expertise and talented team.
Using Honeywell, Niagara, Tridium N4, and AX platforms, we help customers increase operating efficiency and optimize energy usage across commercial and industrial facilities throughout New England.
30+
Years Experience
500+
Projects Completed
MA · NH · ME
Licensed & Insured
1993
Founded in Wakefield
What We Do
Our Services
Automation & Controls
Complete BAS design, installation, programming, and commissioning using Honeywell, Niagara N4, and Tridium platforms.
Gas Detection
Design and installation of gas detection systems for commercial, industrial, and parking facility applications.
Electrical Services
Electrical installation and wiring for commercial and industrial facilities, from low-voltage controls and sensor wiring to power connections.
Service & Support
Preventive maintenance, emergency repair, and system upgrades for existing BAS and gas detection installations.
Why Choose OTC?
30+ Years Experience
Deep BAS and gas detection expertise built since 1993
Certified Technicians
Factory-trained on Honeywell, Niagara, and Tridium platforms
Fast Response
Responsive service and emergency support when you need it
Local & Trusted
Massachusetts-based, serving New England clients since 1993
Service Area
Based in Newburyport — Licensed in MA, NH & ME
From our Newburyport, Massachusetts headquarters, O’Leary Temperature Controls serves commercial and industrial facilities across New England. We’re fully licensed and insured in Massachusetts, New Hampshire, and Maine.
Whether it’s a downtown Boston high-rise, a New Hampshire campus, or a lab on the Maine coast — our factory-certified technicians are a phone call away.
Trusted by New England’s Most Demanding Facilities
From arenas and hospitals to research labs and 300-year-old landmarks — a sample of the clients and projects we’ve served.
Museums & Archives
Institute of Contemporary Art
Boston, MA
Environmental controls protecting gallery spaces — plus rare-book archives at the Congregational Library and Armenian Museum.
Technology
Salesforce
Cambridge & Burlington, MA
Building automation for technology center build-outs at two locations.
Life Science
Ora Clinical Sciences
Andover, MA
Critical environmental controls for medical research laboratories — one of many life-science facilities we serve.
Manufacturing
Formlabs
Somerville, MA
Laboratory build-out controls for the 3D-printing pioneer.
Sports & Entertainment
TD Garden
Boston, MA
Gas detection and life-safety systems for New England’s busiest arena.
Healthcare
Boston Children’s Hospital
Boston, MA
Gas detection installation and calibration for critical care environments.
Research
MIT Laboratories
Cambridge & Middleton, MA
Gas detection for MRI suites, research buildings, and the Bates Electron Collider facility.
Higher Education
Boston College · Brandeis · UMass
Greater Boston, MA
Gas detection installation and calibration across campus facilities.
Laboratories
The MathWorks
Natick, MA
Controls and calibration across multiple labs on the Apple Hill and Lakeside campuses.
Commercial
American Red Cross
Worcester & Dedham, MA
Building controls across two regional facilities.
Historic Properties
Custom House · Crane Estate · Orchard House
Eastern MA
Sensitive controls for irreplaceable buildings — including a c. 1710 landmark and Louisa May Alcott’s home.
Aviation
Ross Aviation
Hanscom Field, Bedford, MA
Slab and space temperature controls for jet hangars.
Brands We Install & Service
Ready to Optimize Your Building Systems?
Contact O’Leary Temperature Controls today for a free consultation and quote.