Residential HVAC Design in Ontario — Permit-Ready, Engineer-Stamped
Complete mechanical drawings for new construction, renovations, and heat pump conversions. CSA F280 heat loss/gain, full duct layout, HRV/ERV design, EEDS, and Schedule 1 — delivered by PEO-licensed engineers and BCIN-qualified HVAC designers.
Get Your Free Quote TodayWhat's Included in Your Residential HVAC Design Package
Everything your municipality needs — tailored to your drawings, project type, and specific city requirements
Calculations & Load Analysis
- CSA F280 heat loss & heat gain calculations
- Room-by-room load breakdown
- Correct equipment sizing (furnace, heat pump, HRV/ERV)
- Methodology aligned with OBC requirements
Duct Layout & Design
- Full duct layout drawn on your architectural plans
- HRAI-aligned duct sizing methodology
- Supply, return, and exhaust routing
- Balancing to deliver comfort in every room
Ventilation & HRV/ERV Design
- Fully ducted HRV/ERV system design
- EEDS (Energy & Environmental Design Summary)
- CSA F326 compliant ventilation summary
- HVI-rated equipment selection guidance
Permit Documentation
- Mechanical drawings formatted for municipal submission
- Schedule 1 & supporting mechanical schedules
- Revision support for municipal comments (typical scope)
- Clear, reviewer-friendly documentation
We Handle All Residential Project Types
Whether you're building from the ground up or retrofitting an existing system, we have a design workflow built for your project
New Construction
- Design a high-performing, code-compliant HVAC system from day one
- We work directly from your architectural drawings
- Complete mechanical package that supports fast permit approval
- Full F280 heat loss, duct layout, ventilation, and permit forms
Renovations & Additions
- Recalculate loads when upgrading or adding conditioned space
- Right-size your equipment for the updated layout
- Update duct and ventilation layouts to match the renovation
- Ensure your system actually performs after construction
Heat Pump Conversions
- Size the system correctly based on actual Ontario climate loads
- Review your existing distribution for compatibility
- Document everything for permit submission
- CSA F280 compliant and OBC aligned
Why Choose Ontario HVAC Design?
Engineering you can submit with confidence — built to your specific building, location, and municipal expectations
PEO-Licensed Engineers
Drawings that can be stamped and sealed by a licensed Professional Engineer — the highest standard for permit submissions in Ontario.
3–5 Business Day Delivery
Most residential projects are delivered within 3–5 business days. Rush options available when your timeline is tight.
Ontario Code Expertise
OBC 2024, CSA F280, ASHRAE standards, and common municipal requirements — we know what reviewers are looking for across the GTA and beyond.
Revision Guarantee
Municipal comment? We handle typical revisions and clarifications at no additional charge, because your permit approval matters to us.
Transparent Pricing
Clear, upfront quotes with no hidden fees. You'll know what you're paying before we start, and it won't change mid-project.
Project-Specific Design
Every package is built from your actual drawings, your location's climate data, and your project's unique requirements — never a generic template.
From Plans to Permit Package in Three Simple Steps
Minimal back-and-forth. Maximum clarity. We make the process as easy as possible for builders, contractors, and homeowners alike.
1. Submit Your Plans
- Send your architectural drawings (PDF or DWG)
- Provide your project address and a brief description
- Submit via the quote form — we accept all common file types
- Attach files directly or share a Google Drive / Dropbox link
2. Engineering Review
- We review your drawings and confirm loads and system type
- Identify any municipality-specific requirements
- Finalize scope with you before proceeding
- Provide a clear quote with no hidden fees
3. Receive Your Package
- Complete, permit-ready mechanical design package delivered
- Typical turnaround: 3–5 business days
- Rush (1–2 days) and urgent (same/next day) options available
- Ready to submit to your municipality
Frequently Asked Questions
Answers to the questions we hear most often from homeowners, builders, and contractors
Do you do HVAC installation?
- No — Ontario HVAC Design provides engineering and design services only
- We produce permit-ready drawings, calculations, and documentation
- For installation, you'll need a licensed HVAC contractor
What do I need to get started?
- Architectural drawings in PDF or DWG format
- Your project address (city is fine to start)
- The type of service you need
- Attach files directly in the quote form on our website
Can you stamp and seal the drawings?
- Yes — as a PEO-Licensed engineering firm, we provide stamped and sealed drawings
- Available for projects that require or benefit from a Professional Engineer's seal
- CofA 100665780 — valid across Ontario
Do you handle municipal revisions?
- Yes — typical revisions from the municipality are included within scope
- We address city comments and update the package at no additional charge
- Your permit approval is our priority
What areas of Ontario do you serve?
- We serve all of Ontario
- Deep experience across the GTA — Toronto, Mississauga, Oakville, Burlington
- Also serving Brampton, Vaughan, Markham, Hamilton, and surrounding municipalities
How fast will I receive my drawings?
- Most residential projects delivered within 3–5 business days of confirming scope
- Rush delivery (1–2 business days) available
- Urgent (same/next day) options for time-sensitive projects
Ready to Get Your Permit Package?
Fill out the quote form and we'll respond within 24 hours with pricing and next steps.
Get Your Free Quote Today