Based in Halifax since 1966, Atlantica, a member of the Cahill Group, is one of the largest mechanical and electrical contractors in the Maritimes.


Equipped with leading-edge technologies, Atlantica’s highly skilled workforce executes a wide range of mechanical and electrical construction projects from design and fabrication to fire protection and maintenance services throughout a building’s life cycle to provide customized solutions to our clients.

Atlantica is proud to have been involved in multiple landmark projects throughout Atlantic Canada.

Integrated construction.

Atlantica’s extensive multi-trade capabilities for electrical, mechanical and fire protection ensures minimal disruptions to business. We also assist project sites during extended shutdowns and maintenance periods on critical equipment and systems.

Atlantica partners with some of Canada’s top engineering companies to deliver mechanical and electrical design services to all clients. Incorporating our multi-disciplinary team throughout the design stage ensures the successful completion of any construction project.

Atlantica’s integrated construction capabilities include:

  • Value engineering
  • Efficient and innovative systems
  • Building systems integration and coordination
  • Plumbing, heating, and ventilation
  • Refrigeration and air conditioning
  • Process piping
  • Power distribution, lighting and building systems
  • Complete Fire Protection including design, supply and install (Life Safety Systems)
  • Piping, sprinkler and sheet metal fabrication / prefabrication
  • Modular construction
  • Fully integrated CAD and CAM production facilities
  • 3D coordination and interference drawings
  • Coordination of all sub-trades
  • Strategic Partnerships


Technology & service.

With highly trained technicians and tradespeople, Atlantica offers innovative solutions to multi-residential, industrial, commercial, and institutional facilities.

Offering responsive emergency building services and planned facility maintenance programs for electrical, mechanical, and fire protection systems, Atlantica’s service expertise optimizes the efficiency and performance of any building.

Our service capabilities include:

  • Maintenance, repair and reconstruction for HVAC, plumbing, electrical, and fire protection
  • Gas boiler maintenance and reconstruction
  • Integrated facility management
  • HVAC control systems
  • Energy retrofits and upgrades
  • AHU reconstruction
  • Fire Protection inspection and maintenance (Life Safety Systems)
  • Pipeline and video inspection (Cornell)
  • Fuel Polishing (Refuel)
  • Traffic light control systems
  • Street light upgrades and maintenance

Our ability to install, commission, and provide after-market services on everything we build makes Atlantica your contractor for life.

Exceptional People

Atlantica’s dedicated project team is focused on the safe and timely execution of projects. Involved in every detail of project execution, they guide in-house 3D coordination to procurement to fabrication to just in time site delivery.

Members of our selected project management team hold Project Management Professional (PMP®) designations and are Gold Seal Certified by the Canadian Construction Association.

Interested in starting your career with Atlantica? Check out our open positions on our team here.

Proven Systems

With proven management techniques, the diverse experience of a team of engineering professionals, technicians and tradespeople, Atlantica is the single source project management provider for its clients. Using the industry’s most modern platforms and processes, Atlantica offers best practices and innovative solutions.

Excellence through collaboration.

Atlantica relies on collaboration with associations and other stakeholders to continue building knowledge and delivering value. That’s why we are members of provincial engineering, construction, and safety associations. It’s also the reason we are aligned with the following organizations.

Fabrication Expertise

Our 35,000 square foot fabrication facility specializes in piping, sheet metal and sprinkler systems for industrial, commercial, institutional and modular fabrication projects. Our Computer Aided Design (CAD) and Building Information Modeling (BIM) integrate with the latest technologies in CNC cutting, forming and welding to optimize construction on every project. Our ability to pre-fabricate components offsite improves quality, expedites delivery, and reduces project costs.

AtlanticaAreas of Expertise


  • Full building installations of power distribution
  • Cable and wiring
  • Integration of mechanical equipment
  • Sophisticated lighting systems with building automation systems
  • Controls, data networks, telecommunications, and security systems
  • Back-up power systems


  • Advanced design and modelling including BIM/3D drafting processes
  • HVAC, refrigeration, and air conditioning
  • Industrial boilers and chillers
  • Plumbing and process piping
  • Fire protection
  • Facility maintenance
  • Fuel oil systems
  • Natural gas systems

Building Services

  • Energy management solutions.
  • Planned maintenance programs.
  • Emergency and support services for:
    • HVAC
    • Chillers
    • Boilers
    • Plumbing
    • Electrical
    • Fire Protection
    • Fuel Oil


  • Sheet metal ductwork
  • Pipe spools and supports
  • Skid mounted assemblies
  • Modular fabrication
  • Rack mounted process piping
  • Braising
  • Plumbing
  • Electrical
  • Sprinkler system piping
  • See capabilities

Select Projects

Jean Canfield Government of Canada Building


TD Centre Halifax

Institutional and Commercial

Dalhousie Life Sciences Building

Institutional and Commercial

Southport Residential Complex

Institutional and Commercial

View All Projects



9 Ralston Avenue
Dartmouth, NS B3B 1H5



The Cahill Group is taking measures to ensure business continuity while prioritizing the health and safety of our people, companies, clients and communities. We remain open with revised visitor protocols, physical distancing requirements, increased cleaning, staggered work hours, and remote work arrangements. To keep employees safe, we are following advice from public health officials.