winning your trust since 1932

CULLITON is a leading multi-trade contractor, providing Mechanical, Electrical and HVAC installation and service to the Industrial, Commercial and Institutional (ICI) sectors in Southwestern Ontario and the GTA. Our head office is in Stratford, with regional offices in London and Mississauga.

CULLITON enjoys strong brand recognition and a solid reputation for quality throughout Southwestern Ontario and the GTA built on a foundation of collaborative relationships with our customers, our employees and the communities in which they live.

CULLITON can speak of an 87-year history of building customer trust—an 87-year history of standing alongside our customers to meet their needs and solve their problems—an 87-year history of going the extra mile for our customers at every stage of the building life cycle.








Quality begins at CULLITON with understanding the needs and expectations of our customers; quality ends at CULLITON when those expectations and needs are not only met but exceeded.

For a fast, competent and cost-effective resolution of your service and installation needs call CULLITON today.

Our Installation and Service Area

Call CULLITON today 1 800 465 2257

From our head office in Stratford and our regional offices in London and Mississauga, CULLITON serves customers throughout Southwestern Ontario, the Greater Toronto Area, and the Golden Horseshoe.

Our Installation and Service area includes Stratford and surrounding communities, Waterloo Region, metro London, GTA West (Halton-Peel) and GTA North (York). We also serve industrial, commercial, and institutional customers in Perth, Essex, Elgin, Huron, Lambton, Grey/Bruce, Middlesex and Oxford counties through to greater Hamilton and Niagara Region.

We accommodate customers outside our Installation and Service area on a case-by-case basis.

Mississauga Sarnia Windsor Stratford London Kitchener Richmond Hill Markham Vaughan Brampton Hamilton Oakville Burlington Niagara Falls Owen Sound Lake Erie Lake Huron
473 Douro St
Stratford, ON N5A 3S9

Head Office

(519) 271-1981
7634 Kimbel St, Unit 24
Mississauga, ON L5S 1M6

Regional Office

(905) 828-1981
805 Consortium Ct
London, ON N6E 2S8

Regional Office

(226) 680-1981