Professional Engineering Services | Ontario
RN Engineering provides HVAC, plumbing & drainage, and fire protection design services for residential, commercial, industrial, and mixed-use projects across Ontario.
We support architects, contractors, builders, developers, business owners, and property owners with clear, coordinated drawings for permit submission and construction coordination.
As an authorized engineering firm holding a Certificate of Authorization (C of A) from Professional Engineers Ontario (PEO), our team delivers the stamped, code-compliant designs that architects, developers, and property owners trust.
Member of Professional Engineers Ontario
RN Engineering Ltd. | Professional Engineers Ontario (PEO) | Certificate of Authorization (CofA) #100659458
Comprehensive Mechanical Design Solutions
Experienced & Reliable
Mechanical Design Services
Professional HVAC, plumbing, drainage, and fire protection drawings prepared using AutoCAD and Revit for smooth building permit approval.
We deliver precise, code-compliant mechanical designs tailored for residential, commercial, and mixed-use projects across Ontario—ensuring accuracy, efficiency, and full compliance with municipal and OBC requirements.
Energy Modelling
Advanced energy modelling to support efficient building performance and compliance.
Using industry-standard modelling tools, we provide SB-10 / SB-12 compliance reports, MLI Select documentation, and energy optimization studies to help clients reduce energy consumption and meet regulatory requirements.
Mechanical Engineering Services for Residential and Commercial Projects
Providing HVAC, plumbing, drainage, fire protection, and energy modelling services with clear, accurate, and permit-ready designs.
Our Engineering Expertise
Service Areas
RN Engineering provides HVAC, plumbing, and fire protection design services throughout Ontario — from the Greater Toronto Area (GTA) to Ottawa, Hamilton, London, Kitchener-Waterloo, Windsor, Sudbury, and Northern Ontario communities
Residential Projects
Professional HVAC, plumbing, drainage, fire protection, and energy modelling services tailored for custom homes, renovations, townhouses, and small residential developments.
Commercial Projects
Complete mechanical system design for retail units, offices, restaurants, clinics, and mixed-use buildings — including HVAC, plumbing, fire protection, and code-compliant permit drawings.
Industrial Projects
Specialized engineering for warehouses, production areas, and utility spaces, delivering efficient mechanical systems that support safety, ventilation, and operational performance.
Why Choose RN Engineering
Committed to delivering exceptional mechanical engineering services with a focus on client satisfaction and project success.
Trusted Engineering Partner
We provide dependable engineering support, guiding clients through each stage of design and approval.
Qualified & Experienced Engineers
Our team delivers reliable HVAC, plumbing, fire protection, and energy-modelling designs backed by professional expertise.
Responsive Project Communication
We stay connected throughout every stage of the project, offering timely updates and dedicated support from start to finish.
Proven Industry Knowledge
We bring strong technical experience across residential, commercial, mixed-use, and institutional mechanical design projects.
Client Testimonials
Betty Downey
RN Engineering provided exceptional mechanical engineering services that exceeded our expectations. Highly recommended!
James T. O'Reilly
Impressed with RN Engineering's commitment to quality and professionalism throughout the project. Highly recommended!
Tom & Mandy Levis
RN Engineering demonstrated outstanding workmanship and attention to detail. A reliable partner for engineering projects.