About Us

1970 Our Founder J.T.(Jack) Hynes started in the ship repair business under the name of Mount Royal Repairs.
1976 Moved to Shed 23 on the Port of Montreal and incorporated the company with the name Mount Royal Marine Repairs Limited.
1980 Purchased the well-established ship repair firm of W.F. Walsh Ltd.
1982 Acquired the license from the Metalock International Association.
1983 Mount Royal Marine Repairs Ltd. closed its operations at shed 23 and moved in with W.F. Walsh Inc. whereby the companies were formally amalgamated under the name Mount Royal/Walsh Inc.
1985 Purchased our new 76,000 sq. ft. property at 2101 Aird Ave.,just moments away from the Port.
1986-1997 Acquired the licenses for MAN B&W and SKL Diesel, became the one and only DNV certified work shop in Canada and will be the first Lloyd's RegisterISO 9002 top side yard in Canada. Certification obtained from the Canadian Welding Bureau (CWB); annual testing.
1998 Purchased the UHP waterjetting system that allowed us to evolve and become MRW Waterjetting Incorporated.
1999 Opened new offices in Baltimore, Maryland and Sept-Iles, Quebec. Purchased a computer controlled CNC Plasma Cutting Table.
2000 Integrated ourselves into the 21st Century with an added Service, 3 Dimensional Measuring & Designing.
2001 Expanded our facility; and installed two ten ton overhead cranes.
2002 Authorized to be the service agent for Nishishiba Electric (N.S.D.K.) and representative of Fuji Electric for Eastern Canada.
2003 Joint venture with Separatech Canada Inc., manufacturing oily/water separators.
Fabricated a 40 X 20 fully contained stationary sandblasting unit.
2009 Certification acquired from Hyundai Heavy Industries Co., Ltd. Engine & Machinery Division
2012 Certification acquired from Hyundai Lifeboats Co., Ltd.
2012 Certification acquired from Bada Heavy Industries Co., Ltd.

Certification acquired for Marine Surveying by Lloyd's Maritime Academy


Certification acquired for Lifeboat Davit & Winch Inspection / Repair




Mr. Jack Hynes CEO, started our company in 1970 in the ship repair business, originally working exclusively for C.A. Crosbie Shipping, carrying out the maintenance and repairs on several small general cargo vessel's which were mainly trading between Montreal, East Coast and the Arctic.

After a couple of years of experience under his belt, he ventured out on his own offering a full range of repair services to the local shipping community, predominantly with foreign vessel trading in our area.

Since 1970 we have grown to be the largest privately owned topside ship repair facility in Eastern Canada, with our head office and main plant located in Montreal with operates 24 hours, 7 days a week throughout the entire East Coast and Great Lakes St. Lawrence Seaway System.

Well respected by the marine community, we presently represent MAN B&W Diesel and SKL.

We are the only Det Norske Veritas (DNV) certified workshop in Canada.

Our firm is certified by the Canadian Welding Bureau (CWB) and our welders are tested on an annually to ensure quality.

In addition to our steel, machine shop, pipe, mechanical, diesel, electrical and refrigeration services, we have recently upgraded our surface preparation and coatings division, by investing in an Ultra High Waterjetting (40,000 psi) state of the art robotic equipment.

To meet the increasing demand for alternatives to abrasive blasting, we have found ourselves opening a new company based in Freeport, Bahamas, Environmental Coating Services Ltd., which carries out all surface preparation on the island. 

Having recently purchased and installed a new computer controlled Plasma Cutting Table, (which is the largest of its kind in Montreal) installed in our newly expanded 76,000 sq. ft. facility, and allows us to work more efficiently and precisely.

Over the years our team has led the industry, by introducing several innovative methods of steel installation, from using bulb flats (reducing weight and cost) and robotic stiffener welding, ceramic one-side welding and containerized welding units which can be installed directly in the cargo hold, in an ongoing effort to control costs.

Our highly skilled, progressive technicians and management team leads Mount Royal / Walsh Inc. to continually grow to be the most widely recommended ship repair facility in our area.

We have and will continue to meet the necessities of our clients along with providing them with the finest service.