Restaurant & food-service plumbing
Prep sinks, hand sinks, mop sinks, floor drains, dishwashers and gas connections.
Commercial Plumbing · Guelph
Commercial Plumbing in Guelph
Fit-outs, service and maintenance for Guelph businesses — restaurants, offices, retail, industrial and multi-residential buildings.
- Tenant fit-outs & franchise build-outs
- Works with your GC, designer and inspector
- After-hours work to avoid downtime
- Preventive maintenance plans
5.016 Google reviews
Licensed & insured
Commercial Plumbing
Commercial Plumbing, done properly
Guelph's commercial base spans downtown restaurants and retail, offices, the Hanlon and northwest industrial parks, and a growing number of multi-residential buildings. We provide commercial plumbing for all of them: new tenant fit-outs, backflow prevention, water heaters and boilers, drains and planned maintenance.
Our commercial crews plan work around your operating hours, coordinate with general contractors and other trades, and deliver to your schedule. Learn more about our commercial plumbing services, restaurant plumbing and boiler and mechanical rooms.
Commercial Plumbing services
Grease interceptors
Sizing, installation and maintenance to meet municipal sewer-use by-laws.
Commercial restrooms
Multi-fixture washrooms, accessible (AODA) fixtures and carriers.
Backflow prevention
Installation and annual testing of backflow preventers.
Water heaters & boilers
Commercial water heating, recirculation and boiler rooms.
Drains & sewer
Camera inspection, jetting, repairs and replacement of building drains.
Salons, clinics & labs
Hair-wash stations, specialty sinks, lab plumbing and filtration.
Service contracts
Scheduled inspections and priority response for property managers.
Clear steps, no surprises
- 1
Review drawings & scope
We review the mechanical drawings, the landlord criteria and your schedule.
- 2
Fixed proposal
You get an itemized proposal with the timeline and any long-lead items.
- 3
Rough-in & inspection
We install, coordinate with other trades and book inspections.
- 4
Finish, test & hand over
Fixtures set, systems tested and documented for your records.
What you get when you hire O Plus
Schedule-driven
We plan crews and materials around your opening date, not the other way round.
Inspection-ready
Work is installed to code the first time, so inspections pass.
One point of contact
One project lead who answers the phone and owns the result.
After-hours capable
Work at night or on weekends when the space is operating.
Work we are proud of
CommercialComplete Commercial Plumbing Installation for Meltwich Guelph & Mississauga
View project
CommercialFlawless Commercial Restroom Plumbing for Turtle Jack’s Mississauga
View project
CommercialComplete Plumbing Setup for King’s Chair Barbershop – Vaughan
View project
CommercialComplete Plumbing Installation for Jersey Mike’s Subs – Hamilton
View project
CommercialSchool laboratory
View project
CommercialWild Wings – Pickering
View project
Pricing
What affects the cost of commercial plumbing?
Every building is different, so we price each job after seeing it. These are the factors that move the number — and you will see each one on your written quote.
Get my exact price- 1
Fixture count & type
Each fixture adds rough-in, venting and finish labour.
- 2
Grease interceptor size
Larger kitchens need larger interceptors and more excavation.
- 3
Existing conditions
Slab cutting, old cast iron or poor drainage slope add work.
- 4
After-hours requirements
Night and weekend shifts cost more than regular hours.
- 5
Permits & engineering
Drawings, permits and backflow testing are part of the budget.
Homeowners and businesses trust us with their water and heat
Google
They are reliable and did the best job for me.
Google
Steve has completed a few jobs for us. It has always been a pleasure working with him, great workmanship and fair pricing. Thank you Steve!
Google
Very professional, very punctual and fast, one of the best customer service and quality in terms of material and job. Very skilled, I would recommend to anyone who is in need of plumbing!
Google
Great quality of work by Steve and his team. He was professional, efficient and finished the job in a timely manner. I would definitely recommend him. Thanks for the great work.
Google
Would recommend FIRST! I had a faucet that needed repair. I called 3 plumbers and none could figure out how to even get the faucet handles removed. I was referred to OPlus Plumbing and I spoke with David. He was here in no time, immediately figured out what had to be done, had all the necessary tools on hand and…
Google
We were very happy with this company. It was late at night on a holiday and they were at our home within 2 hours notice. They came ready with all the materials and tools to do the repair of our kitchen sink and made the work seem so easy. The plumber was very efficient and very professional. Will use again…
Google
Davood and Fazel did our entire plumbing from underground drain and sewage pump to all 4 bathrooms, kitchen and basement kitchenette. Super professional services and very caring. I would absolutely recommend them for any minor or major plumbing job. They were responsive to us at any stage. Even after they finished their job, other contractors damaged the water pipes and…
Commercial Plumbing — frequently asked questions
Do you provide commercial plumbing in Guelph?
Yes. We handle commercial plumbing for Guelph restaurants, offices, retail, industrial units and multi-residential buildings.
Can you work with our general contractor on a fit-out?
Yes. We regularly work with general contractors and other trades on tenant fit-outs and deliver to the project schedule.
Do you install and test backflow preventers in Guelph?
Yes. We install backflow prevention devices and provide annual testing and reports.
Do you offer maintenance plans for commercial buildings?
Yes. We offer scheduled maintenance for drains, water heaters, boilers and backflow devices.
How do I get a quote?
Call (416) 700-3040 or request a quote online with your drawings or scope, and we will reply with a written price.
Learn more about commercial
General Plumbing
Understanding and Comparing Commercial Plumbing Systems
Plumbing is a foundational infrastructure element in any built environment, essential for ensuring clean water supply and effective wastewater removal.…
Plumbing Guides
Understanding the Differences Between Commercial and Industrial Plumbing
Plumbing is a critical component of any infrastructure, ensuring the proper distribution of water and the safe disposal of waste.…
General Plumbing
What are the Proper Piping Materials for Commercial Building Applications
The plumbing system of a commercial building plays a crucial role in its functioning. Suppose an inappropriate piping material is…
One team for your plumbing and heating
Residential PlumbingRepairs, re-pipes, water heaters, drains and new fixtures for GTA homes — done clean, on time and to code.Explore
Boiler Room PlumbingBoiler installation, replacement and repair, mechanical-room design, near-boiler piping, pumps, zoning and controls.Explore
Heated Driveways & Snow MeltingHydronic snow-melt systems for driveways, walkways, steps and ramps — designed, installed and commissioned in-house.Explore
Radiant In-Floor HeatingHydronic radiant floors for homes, basements and garages — heat-loss design, manifolds, mixing and smart controls.Explore
Free quote · fast response
Ready to talk about commercial plumbing?
Call now or send a few details — we will reply with next steps and a written quote.
- Licensed & Insured
- 24/7 Emergency Service
- Free On-Site Quotes
- Workmanship Guarantee