Plumbing & Drainage Design Services in Ontario
RN Engineering provides code-compliant plumbing and drainage design services across Ontario for custom homes, multi-unit residential buildings, commercial spaces and industrial facilities. We prepare coordinated water-distribution, sanitary-drainage and storm-drainage drawings for municipal building-permit applications.
Our Technical Plumbing Design Capabilities
Our designs address Ontario Building Code requirements and municipal review requirements, helping reduce permit delays and coordination issues.
• Domestic hot and cold water distribution, including service sizing and entry design
• Sanitary drainage, storm drainage and roof-drain design
• Backflow-prevention design and coordination
• Grease-interceptor design and sizing for food-service spaces
• Sump-pump and sewage-ejector systems for below-grade applications
• Fixture-unit calculations and code-compliant pipe sizing
• Isometric riser diagrams and mechanical-room plumbing layouts
• Water-meter and booster-pump systems for multi-storey buildings
• Plumbing retrofits, upgrades, and permit/construction drawings
Building Types We Support
Our plumbing designs support:
• Custom homes and multi-unit residential buildings
• Tenant fit-ups and renovations
• Offices, retail units and commercial buildings
• Restaurants and commercial kitchens
• Medical clinics
• Industrial facilities
• Schools and institutional buildings
Professional Engineering Certification (P.Eng)
Where required for permit submission, RN Engineering’s plumbing and drainage design packages are reviewed and signed by a Professional Engineer (P.Eng.) under our Certificate of Authorization from Professional Engineers Ontario. We provide the riser diagrams, calculations and fixture schedules municipal reviewers need to assess the application.
Need Permit-Ready Plumbing Drawings?
Planning a new building, renovation or tenant fit-up? Contact RN Engineering for coordinated plumbing and drainage drawings prepared for municipal permit review.
Request a Plumbing Design Quote
