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Welcome to MJ Daly!  We are a premier Mechanical Contracting company serving Connecticut and Western Massachusetts. We provide a wide range of comprehensive services for new or existing buildings’ essential systems  – Virtual Design & Construction, Engineering, Mechanical / HVAC, Fire Protection, Building Automation, and Service & Maintenance to support all. We deliver total system responsibility, effectively and efficiently, ensuring one-hundred percent customer satisfaction.

Our Capabilities 

Virtual Design & Construction

BIM Process & Workflow
3D Clash-Free Detection
Trimble Layout Capabilities
Autodesk Revit & Navisworks
Integrated Project Design

Engineering

Plan Spec Mechanical System Design
Design-Build
Feasibility Studies
Construction Administration
Commissioning
Peer Review

Mechanical / HVAC

Construction & Install
Upgrades & Retrofits
Plumbing
Pipe Fabrication
Service & Maintenance
24 Hour Emergency Service

Fire Protection

Construction & Installation
Upgrades & Retrofits
Code Complainant Inspections
Fire Pump Testing
Service & Maintenance
24 Hour Emergency Service

Service & Maintenance

Mechanical / HVAC
Fire Protection
Service & Maintenance Plans
24 Hour Emergency Service

Building Automation

Temperature Control
Lighting Control
System Design
System Integration
Training
24 Hour Emergency Service

Virtual Design & Construction

Virtual Design & Construction

BIM Process & Workflow
3D Clash-Free Detection
Trimble Layout Capabilities
Autodesk Revit & Navisworks
Integrated Project Design

Engineering

Engineering

Plan Spec Mechanical System Design
Design-Build
Feasibility Studies
Constructions Administration
Commissioning
Peer Review

Mechanical / HVAC

Mechanical - HVAC Construction

Construction & Install
Upgrades & Retrofits
Plumbing
Pipe Fabrication
Service & Maintenance
24 Hour Emergency Service

Fire Protection

Fire Protection Construction

Construction & Installation
Upgrades & Retrofits
Code Complainant Inspections
Fire Pump Testing
Service & Maintenance
24 Hour Emergency Service

Service & Maintenance

Service & Maintenance

Mechanical / HVAC
Fire Protection
Traffic Lighting
Service & Maintenance Plans
24 Hour Emergency Service

Building Automation

Building Automation Control

Temperature Control
Lighting Control
System Design
System Integration
Training
24 Hour Emergency Service

Markets We Serve