For Contractors

UA Local 527 has the experienced journeymen and apprentices available and ready for today’s competitive construction market. We provide ongoing training courses to our members to ensure they have the necessary skill set for all construction sectors. We ensure that every journeyman and apprentice meets our criteria and are held to our Standard for Excellence policy. The SFE policy is a labour-management commitment to uphold the highest industry standards for quality in the workplace and ensure customer satisfaction. Whether you’re looking for a foreman or first year apprentice we have the manpower to accommodate any size of project.

Cost certainty

Working under a collective agreement provides contractors the terms and conditions which pertain to our construction sector.  Wage rates, benefits, hours of work including all the terms of employment are laid out, so there is no guesswork. You can bid future work with greater certainty around what core costs will be. UA Local 527 also handles all of the administration for health and welfare benefits, pension and other payments to keep it simple. Our office staff works directly with your payroll dept to make the remittance process a breeze.

Manpower Demands

We have a growing membership of over 2000 members residing from Windsor to Waterloo. Our dispatch system works 100% name hire. This dispatch system allows the contractor to name request 100% of his crew. UA Local 527 members are dispatched to your project as needed, and when they’re laid off they simply return to the dispatch system for their next job. UA Local 527 will work hard to ensure you have the right crew for each particular job.

Our partnership

UA Local 527 has built a strong reputation in Ontario with 527 signatory contractors, general contractors and owners. We believe our continued success is in relation to the communication, commitment and honesty we have with each other. Whether we are working on a residential project or industrial jobsite we are committed to “doing it right the first time”.

Find out more

Need more info on joining UA Local 527.

Contact our office at 519-746-3300.


UA527 Contractors


Aecon Industrial
150 Sheldon Drive
Cambridge, Ont., N1R 7K9
Tel: 519-653-3200 
Fax: 519-624-0363
Web site:

AIM Industrial 
29 Cherry BLossom Rd
Cambridge, ON N3H 4R7
Tel: 519-747-2255
Web site: 

Alltrade Industrial Contractors
1477 Bishop Street North
Cambridge, Ontario N1R 7J4
Tel: 519-740-1090
Fax: 519-740-8776

Besterd Mechanical
 1070 Wilton Grove Rd. London, ON N6N 1C6
Tel: (519) 672-8454
Fax: (519) 672-9979

Burley & Griffin Industrial
47 Lewis Rd. Guelph, ON N1H 1E9
Tel: (519) 763-9545
Fax: (519) 763-5712

Bruce Power INC.
P.O. Box 1540, Tiverton, N0G 2T0
Fax: (519) 763-5712

Cimco Refridgeration 
651 Wilton Grove , Ontario N1R 7J4
Tel: (519) 439-1300
Fax: (226) 377-0831

Class Controls Ltd
445 Benjamin Rd.
Waterloo, Ont., N2J 3W1
Tel: 519-895-2772
Fax: 519-895-2558

Conestogo Mechanical Inc
50 Dumart Place,
Kitchener, Ont., N2K 3C7
Tel: 519-579-6740
Fax: 519-579-5962
Web site:

Culliton Inc. 
473 Douro Street, P. O. Box 850,
Stratford, Ont., N5A 6W3
Tel: 519-271-1981
Fax: 519-273-4885
Web site:

Curney Mechanical 
414 Neptune Street
London, Ont., N6M 1A1
Tel: 519-453-1614
Fax: 519-453-0147

Dielco Industrial Contractors 
80 Enterprise Dr. S London ON N6N 1C2
Tel: (519) 685-2224
Fax: (519) 685-6818

Dave Hurst Plumbing & Heating Inc
2400 Shirley Dr
Kitchener, Ont., N2B 3X5
Tel: 519-893-3464

Dean-Lane Contractors Inc
970 Guelph St.,
Kitchener, Ont., N2H 5Z6
Tel: 519-585-0903
Fax: 519-585-0820
Web site: 

DEW Mechanical Inc
30 Huron St. P.O. Box 6101
New Hamburg, Ont., N3A 2K6
Tel: 519-894-3200
Fax: 519-894-3100

Dielco Industrial Contractors Ltd.
80 Enterprise Dr. S
London, Ont., N2N 1C2
Tel: 519-685-2224
Fax: 519-685-6818

Dunbar Mechanical Services Inc

1094 Isabella Street,
Linwood, Ont., N0B 2A0
Tel: 519-698-1069
Fax: 519-698-2418

Eagle Plumbing 

5205 8th Concession
Maidstone ON N0R 1K0
Tel: (519) 737-7778
Fax: (519) 737-1124

Energy Controls & Mechanical Service Inc
565 Trillium Drive, #10,
Kitchener, Ont., N2R 1J4
Tel: 519-893-2638
Fax: 519-893-0084
Web site:

FM Sylvan
3260 Odessa Dr.
Tecumseh,ON N8N 2M1
Tel: 519-948-8825

Fahrhall Mechanical Contractors
3822 Sandwich Street
Windsor ON N9C 1C1
Tel: (519) 791-1816
Fax: (519) 969-8025

Gall Construction (Acapulco Pools)
1550 Victoria St. N
Kitchener, ON, N2B 3E2
Tel: (519) 743-6357
Fax: (519) 579-3444

G. L. M. Welding Service
Operating as 667568 Ont. Ltd
4869 Wellington Rd 29, R. R. # 2,
Guelph, Ont., N1H 6H8
Tel: 519-856-4208
Fax: 519-856-2545

Gowing Contractors
144 Sugar Maple Rd, Box 70
St. George, Ont., N0E 1N0
Tel: 519-448-4711
Fax: 519-448-3557


Haller Mechanical Contractors Inc.
1537 McDougall St Windsor ON N8X 3M9
Tel: 519-254-4635
Fax: 519-254-3385

Industrial Trade Solutions
8340 Fairlane Rd.
Listowel ON N4W 3G6
Tel: 519-291-1285

Kittel Mechanical (2003) Inc

949 Glengarry Crescent
Fergus, ON, N1M 2W8
Tel: 519-746-9613
Fax: 519-746-9954

Lekter Industrial Services
500 Harvard Dr.
Belle River ON N0R 1A0
Tel: 519-727-3713
Fax: 519-727-6176

Martin Mechanical
4869 Wellington Rd. 29, RR2
Guelph, ON, N1H 6H8
Tel: 519-856-4208

Mummery Mechanical
82 Gunn Ave
Cambridge, ON N2C 3J7
Tel: 519 221-1534

MWS Solutions Inc
612 Colby Drive,
Waterloo, Ont., N2V 1A2
Tel: 519-886-2475
Fax: 519-886-4128

Modern Niagara Southwestern Ontario Inc.
115 Hempstead Drive, Units 9 & 10
Hamilton, ON, L8W 2Y6
Tel: 289-768-1951
Web site:

Nelco Mechanical Ltd
77 Edwin St., P. O. Box 1086,
Kitchener, Ont., N2G 4G6
Tel: 519-744-6511 
Fax: 519-744-3072
Web site:

Process Group
Tel: (519) 622–5520
Web site:

R & R Mechanical Group Inc
8-62 McBrine Place
Kitchener, ON, N2R 1H3
Tel: 519-465-1845
Fax: 1-888-334-7066 

Resource Industrial Group Inc
295 Waydom Drive,
Ayr, Ont., N0B 1E0
Tel: 519-622-5266 #222
Fax: 519-622-4689
Web site:

Rite Way Mechanical Ltd
33 Hayes Ave.,
Guelph, Ont., N1E 4V6
Tel: 519-836-9961
Fax: 519-836-8350

Roberts Onsite
209 Manitou Drive Box 1296
Kitchener, Ont., N2C 1L4
Tel: 519-578-2440
Fax: 519-578-2979

St. Clair Mechanical Inc.
2963 Brigden Rd
Brigden, Ont., N0N 1B0
Tel: 519-864-0927
Fax: 519-864-0801

Southern Mechanical Contractors Limited
3194 Devon Dr.
Windsor, ON, N8X 4L2
Tel: 519-969-1722
Fax: 519-966-0928

Sutherland-Schultz Inc
140 Turnbull Crt.
Cambridge, Ont., N1T 1J2
Tel: 519-653-4123
Fax: (519) 653-3232
Web site:

The State Group Inc
3206 Orlando Dr.
Mississauga, Ont., L4Y 1R5
Tel: 905-672-2772
Fax: 905-312-8692
Web site:

Triton plumbing Services
366 Wortley Road
London ON N6C 3S2
Tel: (226) 270-6424

Trade-Mark Industrial Inc
250 Royal Oak Rd
Cambridge, Ont., N2E 0A4
Tel: 519-650-7444
Fax: 519-650-5707
Web site:

T.W. Johnstone Co. Limited
284 Exeter Rd
London, Ont., N6L 1A3
Tel: 519-650-7444
Fax: 519-652-5956

Vollmer Inc.

3822 Sandwich St
Windsor ON. N9C 1C1
Tel: (519) 966-6100
Fax: (519) 966-0934
Web site: 

W. S. Nicholls Construction Inc
48 Cowansview Rd.,
Cambridge, Ont., N1R 7N3
Tel: 519-740-3757
Fax: 519-740-9752
Web site:

W. S. Nicholls Industries
270 South Gate Drive
Guelph, Ont., N1G 4P5
Tel: 519-763-2292
Fax: 519-763-22287






  Jun 27           Aecon - EPSCA List Hired  1 WLD S for 8 weeks Axiom List Hired  1 PLB for 2 weeks + Axiom List ...


Spring 2024 Newsletter

Click here to view the Spring 2024 Newsletter.


Mark's Discount for Local 527 Members

Mark's is offering Local 527 Members a 25% discount from June 16-29, 2024.  Click here for coupon.


New OPTC Organizer

Please click here regarding a full-time position available with the Ontario Pipe Trades Council as a full-time Field Organizer.


Winter 2023 Newsletter

Click here to view the Winter 2023 Newsletter 


United Association of Journeymen and Apprentices of the Plumbing and Pipe Fitting Industry of the United States and Canada or "UA" as it is commonly known is a multi-craft union whose members are engaged in the fabrication, installation and servicing of piping systems.


225 Frobisher Drive Waterloo, ON N2V 2G4
Phone: 519-746-3300
Fax: 519-746-7660

331 Sovereign Rd. London, ON N6M 1A6
Phone: 519-746-3300
Fax: 519-659-7831

3429 St. Etienne Blvd. Windsor, ON N8W 5B1
Phone: 519-746-3300
Fax: 519-946-9996


Although it is true that only about 20 percent of American workers are in unions, that 20 percent sets the standards across the board in salaries, benefits and working conditions. If you are making a decent salary in a non-union company, you owe that to the unions. One thing that corporations do not do is give out money out of the goodness of their hearts.

MOLLY IVINS, attributed, "Labor's Fight is OUR Fight", Campaign for America's Future

Powered by Digital North media