We Develop Innovative Plumbing Designs and Apply Creative Solutions

Plumbing systems utilize piping, fixtures, tanks, valves, and other equipment to distribute and collect fluids throughout a structure. The proper design and installation of these systems are critical to the successful operation of any building. Our engineers at H2M are dedicated to providing effective and efficient plumbing designs. We design the necessary water supply and backflow prevention systems to provide a safe and reliable source of water.  We provide waste collection systems for sanitary, industrial, and grease waste products. Storm water drainage systems help convey water away from the building and reduce the chances of infiltration through the structure. Natural gas systems are designed to serve heating, domestic hot water, and cooking appliances. In addition to these standard plumbing systems, our engineers provide design for specialty plumbing systems including emergency plumbing fixtures, specialty gas piping, compressed air, and fuel storage.  Whether we are working for an educational, healthcare, commercial, or industrial facility, our team can provide a successful solution.

Joseph A. Manzella

Joseph A. Manzella, P.E., LEED AP BD+C

Vice President
Department Manager, Mechanical Engineering

Mr. Manzella has 23 years of experience in the field of mechanical engineering design including HVAC and plumbing systems. He has been involved with the development of the mechanical engineering group at H2M for over 21 years and currently manages the department.

Mr. Manzella has provided mechanical systems design for industrial clients, educational facilities, commercial buildings, and special use facilities such as natatoriums. He is a LEED Accredited Professional who is dedicated to providing energy efficient and “water-smart” design solutions.

Mr. Manzella strongly believes in providing the right project for each client. That means understanding the needs of your client and incorporating their goals. He encourages all team members to develop well defined project scopes and objectives and share them with the client at the earliest schematic phases of a project. Getting the client on board in the early stages creates a clear path for a successful design effort.

Read More

  • Plumbing Systems
  • Emergency Plumbing Fixtures
  • Domestic Water Heating Systems
  • Backflow Prevention
  • Sanitary Systems and Drainage
  • Natural Gas Distribution
  • Water Supply and Distribution
  • Vehicle Wash Systems
  • Swimming Pool Filtration and Control Systems
  • Pump Stations
  • Storm Drainage
  • Specialty Waste Piping and Collection Systems
  • Specialty Gas Piping Systems
  • Compressed Air Distribution Systems
  • Traps, Interceptors and Separators
  • Fuel Storage and Distribution Systems
  • Automated Fluid Storage and Dispensing Systems


Do you know…

H2M’s plumbing engineering service covers the following markets listed below, please click “learn more” to view each market.


H2M designs bright, engaging spaces that foster collaboration, encourage discovery, and inspire learners of all ages.

emergency services

H2M’s architects and engineers apply their experiences as emergency service personnel to envision how a facility will be used on a day-to-day basis.


Forensic industry professionals count on H2M engineers and consultants to service both residential and commercial claims.


With deep roots in all of our local communities, H2M designs creative, environmentally responsible projects tailored to each of our client’s needs.

public agency

Our goal is to be considered a trusted adviser to our clients, and extension of their own in-house staff.

real estate

From the due diligence to the grand opening, H2M helps make visions a reality.


Since its inception in 1933, H2M has been a leader in the field of water supply and wastewater treatment; once simply known as Sanitary Engineering.



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