Quality Service
NJ Mechanical is a trusted leader in mechanical contracting and service, delivering high-quality solutions to commercial, industrial, and institutional clients. With a team of certified technicians and decades of combined experience, we specialize in HVAC systems, chillers, ice machine service, boilers, service plumbing, backflow prevention, welding, and process piping. We are committed to safety, efficiency, and exceeding client expectations on every project.
On Time & On Budget
With over 30 crew members in the field, NJ Mechanical proves our commitment to service every day.
HVAC-R
Commercial & Residential HVAC
Given the increasing complexity of many construction projects it is becoming more common that a consultant.
Commercial & Industrial HVAC
Commercial & Industrial HVAC Good Ventilation Works Behind the Scenes A properly designed ventilation system continuously removes heat, moisture, odors, fumes, and airborne contaminants before…
Chillers & Cooling Systems
Chillers & Cooling Systems Chillers Don’t Really “Create” Cold A chiller works by removing heat from water and transferring it elsewhere—often through a cooling tower.…
Boilers & Hydronics
Boilers & Hydronics Water Carries Heat Better Than Air Because water can transport far more heat than the same volume of air, hydronic systems can…
Refrigeration
Refrigeration Pressure Determines the Refrigerant’s Temperature A refrigeration system controls where refrigerant boils and condenses by changing its pressure. Lowering the pressure allows the refrigerant…
Controls
Controls A Small Speed Reduction Can Produce Major Energy Savings Under the fan and pump affinity laws, the power required by many centrifugal fans and…
Plumbing
Commercial & Residential Plumbing
Commercial & Residential Plumbing Did You Know? A faucet dripping just once per second can waste more than 3,000 gallons of water in a year—making…
Water Heating
Water Heating Proper Heating Saves You Money In many commercial buildings, water heating is the second-largest energy expense after space heating and cooling—making proper system…
Backflow Prevention
Backflow Prevention When Water Flows the Wrong Way Backflow can occur when water pressure suddenly drops—sometimes from a water-main break or firefighting activity—allowing contaminated water…
Drain, Sewer & Location Services
Drain, Sewer & Location Services What’s Happening Below the Surface? A sewer camera can travel through underground piping to pinpoint blockages, cracks, root intrusion, and…
Pumps & Water Systems
Pumps & Water Systems Giving Heated Water Room to Grow Water expands as it heats. An expansion tank absorbs that additional volume, helping prevent pressure…
Specialty Plumbing
Specialty Plumbing Chillers Don’t Really “Create” Cold A chiller works by removing heat from water and transferring it elsewhere—often through a cooling tower. The chilled…
Industrial Piping & Fabrication
Process Piping
Process Piping More Than Just Moving Fluids Unlike conventional plumbing, process piping is engineered around the specific material it carries—accounting for factors such as pressure,…
Pipefitting
Pipefitting Precision Down to the Degree Pipefitting Fact: Even a small alignment error can place unnecessary stress on piping, valves, pumps, and connected equipment—making accurate…
Welding & Fabrication
Welding & Fabrication More Shop Time Means Less Downtime Prefabricating pipe spools and assemblies in a controlled shop environment can improve weld consistency, simplify quality…
Piping Materials
Piping Materials The Right Material Matters The strongest or most expensive piping material is not automatically the best choice. Pressure, temperature, corrosion, fluid compatibility, sanitation…
Built for Demanding Mechanical Work
Safe, Reliable Mechanical Systems By Skilled Union Craftsmemn
- Quality Control System, 100% Satisfaction Guarantee
Utilising latest processing solutions, and decades of work experience.
Designing, construction, planning & infrastructures management such.
Our Location
11284 Chaney Drive
Machesney Park, IL 61115
Quick Contact
Sales: sales@njmechanical.com
Support: support@njmechanical.com
Request A Quote
Complete control over products allows us to ensure our customers receive the best quality prices and service.