We currently hold the following licenses:

Commonwealth of Massachusetts

• Master Pipefitter
• Oil Burner Technician
• Refrigeration Contractor
• Construction Supervisors License

City of Boston
• G-12 Fuel Oil Piping license

All of our employees have passed the 10 hour OSHA course and we also have employees available with the following OSHA qualifications:
• 30 hour OSHA Course
• 40 Hour HAZWOPER Course
• Various specialty training inclusive of confined space, staging erection, lift and rigging.



About us

The following is a list of our capabilities that are constantly being expanded in order to keep up with the technological advances in our industry:

1. H.V.A.C systems including heat pumps, chillers and cooling towers.

2. Process piping of any nature.

3. Boiler installations up to the largest packaged boiler made of any pressure.

4. Pipe welding of any material with certified welders using the latest welding procedures. These materials include mild steel, stainless steel, monel, aluminum, chrome moley, PVC and other various plastics.

5. Steel fabrications, including the platforms and stairs needed to support and provide access to mechanical equipment installed by us.

6. The fabrication of specialty tanks, on site and in our shop for liquid storage in areas not suited or accessible for conventional tanks.

7. Hydraulic piping using flared, compression and welded systems.

8. Control piping for process applications including the building of custom pneumatic panels.

9. Boiler stack installations.

10. Sanitary stainless steel piping using welded or expanded ferrules.

11. Building services piping, including air, gas, chill water, steam, condensate and condenser water.

12. Diesel fuel piping and generator tank installation.

13. Utility piping steam, condensate, chilled water and hot water.

14. Installation and modifications of prefabricated piping systems. (permapipe, rickwell)

15. Victaulic and grooved piping systems.

16. We also do all of our own rigging and demolition work.

We do not handle projects that solely consist of sprinkler or plumbing work, but we will handle these trades through a sub-contract if they are a small part of a large mechanical project.

We are experienced in on-site layout and can work effectively without costly plans and specifications. We can provide engineering support if required.

We do business on a regular basis with a wide variety of material suppliers and are located near many specialty supply houses. We can locate and supply most hard to find items usually on a one or two day basis.

We are a union contractor with a regular work force of journeymen pipefitter's and welders, We supplement this force on an as needed basis from the union hall in the area where we are working.

We are a Massachusetts corporation with financial requirements provided by Northern Bank.

If you have any questions on our capabilities, or if we can assist you in any piping matter, please feel free to give us a call at your earliest convenience.


Dean Gilligan
C.G. Mechanical Inc.