Mechanical Maintenance & HVAC Services

Design and maintenance for heating, cooling, electrical, and plumbing equipment

HVAC, Electrical & Plumbing Services

We partner with our clients to develop mechanical maintenance programs that lower operating costs, improve air quality, and extend equipment longevity. We provide mechanical maintenance services for heating and cooling systems for commercial, industrial, and institutional clients. Our technicians provide comprehensive and customized services, including everything from preventative maintenance to retro-fitting and mechanical design-build. We also offer revolutionary air purification technology that proactively manages your indoor air quality, removing viruses, bacteria, mold, allergens, and other dangerous particles from your facility’s air. The result is improved air quality and better facility efficiency, productivity, safety, and compliance. 

Types of Systems

Marsden Services


Marsden Services


Marsden Services


Marsden Services


Marsden Services


Marsden Services

Exhaust Systems

Marsden Services

Data Centers

Marsden Services

Cooling Towers

Marsden Services

Kitchen Equipment

Marsden Services

Makeup Air Systems

Marsden Services

Heat Pumps


  • Preventative Maintenance

  • Filtration & Ventilation

  • Central Chiller Systems
  • Cooling Towers
  • Package & Split Systems
  • Evaporative Coolers
  • Compressors

  • Conversion of Central Air System to Individual Split or Package Air Conditioners
  • Energy Conservation Consulting
  • Facility & Equipment Evaluation

  • Energy Audits, Systems, Solutions, & Management Controls

  • Industrial Ammonia Refrigeration Systems

  • Integrated Controls Systems

  • Emergency Services


  • Commercial & Industrial
  • Troubleshooting Services
  • Preventative Maintenance

  • Design and Layout Services
  • Consulting Services
  • Temporary Power
  • Co-Generation Power Systems

  • Emergency Services


  • Drain Cleaning & Drain Jetting
  • Toilets, Sinks, Faucets, & Flush Valves

  • Sewer Lines Repaired and Replaced
  • Water Services Repaired and Replaced
  • Video Inspection Services
  • Underslab Leak Location
  • Backflow Devices and Inspections
  • Gas Piping Repaired and Replaced

  • Medical Gas Piping and Inspections

  • Tankless Water Heaters, Lift Stations, Sump Pumps, Pumps System & Booster, and Tampering Valves

  • Emergency Services


  • Project Management & Coordination Services

  • Administer Service Contract

  • Job Site Coordination & Inspection

  • Job Permitting & Inspections

  • Coordinate Subcontractor(s)

  • Coordinate Flow and Process Data

  • Quality Assurance & Staffing Management

  • Safety Management & Administration


  • Equipment Selection/Specification

  • Engineered Solutions for Functional Requirements

  • Concept Design, Schematic Design, As-Built CAD Drawings on Completion

  • O&M Manuals

  • Start-Up Verification & System Commissioning


  • Warranty Services:

    • Regular Inspections
    • Testing
    • Cleaning
    • Establish one year parts, equipment, & installation warranties
    • Provide extended equipment manufacturer warranty programs
    • Manufacturer coordination and defective equipment replacement
    • Regular adjustments or replacement of certain equipment components
    • 24/7 warranty response services
  • Installation & Subcontractor Services

  • Pre-Sale Services

  • Air Purification through Marsden’s CleanAir system powered by PuriFi