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Mechanical HVAC Permit Facts

Layouts required

City guides list mechanical system layouts at each affected floor level.

Calculations matter

Heat loss/gain, duct design, and ventilation calculations may be required.

Stand-alone permits

Apply when HVAC work is not related to other construction proposed for the building.

$214.79+

Toronto lists several 2026 HVAC flat-fee examples starting at $214.79.

Related HVAC Permit vs Stand-Alone HVAC Permit

The first question is whether the HVAC work is part of a larger building permit or whether it is a stand-alone mechanical project.

Permit Type When It Applies What Acadia Prepares
Related Mechanical (HVAC) Permit For HVAC work included as part of a larger building permit application, such as a home addition, interior renovation, restaurant, commercial tenant fit-out, or other construction project. Mechanical layouts, equipment details, ventilation and calculation notes, and coordination with the building permit drawing package.
Stand-Alone Mechanical (HVAC) Permit For HVAC work that is not associated with any other proposed construction on the property. Stand-alone HVAC permit drawings, system layouts, equipment details, heat loss and heat gain calculations, duct design, ventilation calculations, required forms, and submission support.
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What Drawings and Calculations Are Needed for an HVAC Permit?

The City of Toronto HVAC permit guides list mechanical system layouts, equipment details, and HVAC calculations as required documentation. The exact scope depends on the project.

  • Mechanical system layout at each affected floor level.
  • Type, location and size of equipment.
  • Heat loss and heat gain calculations.
  • Duct design calculations.
  • Mechanical ventilation calculations and design.
  • Exhaust, make-up air and fresh air details where required.
  • Furnace, boiler, AC, heat pump, unit heater, ductwork or special ventilation scope notes.
  • Required permit forms, designer information and engineer/architect commitment forms where required.
HVAC Permit Drawings Toronto

City of Toronto HVAC Permit Fee Examples

These are City of Toronto fee examples effective January 1, 2026. Final fees depend on project scope, occupancy and municipality. Acadia’s design/drafting fee is separate from City permit fees.

Fee Item 2026 City Fee Example
Heating and Ventilating Only (No Ductwork) – Group C Houses / Townhouses $214.79 flat fee
Heating, Ventilating, and Air Conditioning – Group C Houses / Townhouses $270.64 flat fee
Boiler / Furnace Replacement $214.79 flat fee
A/C Unit Addition $214.79 flat fee
Add-On System, Unit Heater, Make-Up Air Unit, Exhaust Fan, and/or Ductwork Alterations $214.79 flat fee
Boiler / Furnace Replacement or A/C Unit Under HVAC Alterations $386.62 flat fee
Commercial Kitchen Exhaust, Spray Booth, Dust Collector, etc. $463.95 flat fee

HVAC Permit Projects We Can Help With

Residential HVAC Changes

Furnace, boiler, AC, heat pump, ductwork, basement suite ventilation and renovation-related HVAC changes.

Commercial Tenant Fit-Outs

Mechanical layouts and ventilation coordination for offices, retail units, clinics and other tenant spaces.

Restaurant and Specialty Exhaust

Commercial kitchen exhaust, make-up air, spray booth, dust collector and specialty ventilation permit support.

Additions and Renovations

HVAC drawings coordinated with building permit drawings for additions, interiors and layout changes.

Stand-Alone HVAC Work

Permit packages for HVAC work that is not part of another building permit application.

City Comments

Support when examiner comments ask for missing layouts, calculations, equipment details or ventilation information.

Example HVAC Permit Scope

Project example:

Commercial tenant fit-out with new exhaust fan and make-up air unit.

Permit issue:

Mechanical layout, equipment size/location, duct routing, ventilation design and coordination with architectural drawings needed to be clear.

Package included:

Mechanical system layout, equipment schedule, duct design notes, ventilation calculations and permit forms.

Purpose:

Give the reviewer enough information to understand the proposed HVAC work and reduce avoidable comments.

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What to Send Us for a Faster HVAC Permit Quote

  • Property address and municipality.
  • Residential or commercial property type.
  • Short description of the HVAC work.
  • Equipment type, size/model and location if known.
  • Existing drawings or floor plans if available.
  • Photos of mechanical rooms, equipment, ducts, exhaust path and affected rooms.
  • Contractor proposal or equipment specification sheets.
  • Whether the HVAC work is part of a larger renovation/building permit.
  • Any City comments, examiner notices or rejected HVAC drawings.
Mechanical Drafting Services Toronto

Why HVAC Permit Applications Get Delayed?

Missing Layouts

No mechanical layout at each affected floor level.

Missing Equipment Details

Equipment type, location or size is unclear.

Missing Calculations

Heat loss/gain, duct design or ventilation calculations are missing.

Poor Coordination

HVAC drawings do not match architectural plans, ceiling layouts or suite layouts.

Exhaust Questions

Make-up air, fresh air, exhaust route or specialty ventilation strategy is unclear.

Missing Forms

Designer information, engineer/architect commitment forms or permit forms are incomplete.

Need Mechanical HVAC Permit Drawings?

Send us the address, scope, equipment details, photos, any drawings and any City comments. We will review what is needed for a permit-ready HVAC package.

Request an HVAC Permit Quote

Privacy note: do not include personal information such as a homeowner name or phone number on permit drawings. Building plans submitted for permit may be subject to disclosure under MFIPPA.

Mechanical HVAC Permit FAQs

A permit may be required when HVAC work is part of a building permit project or when stand-alone mechanical work changes heating, ventilation, air conditioning, ductwork, exhaust, make-up air, or specialty ventilation systems. The permit path depends on whether the HVAC work is related to another building permit or is stand-alone work.

A related HVAC permit is tied to a larger building permit application. A stand-alone HVAC permit is for HVAC work that is not related to other construction proposed for the building.

Toronto lists mechanical system layouts, equipment type/location/size, heat loss and heat gain calculations, duct design calculations, and mechanical ventilation calculations/design.

Often yes when the project changes heating, ventilation, exhaust, fresh air, ductwork, or mechanical equipment. HVAC details also need to coordinate with fire separation, exits, rooms and ceiling layouts.

Toronto’s 2026 fee schedule lists several HVAC fee examples, including $214.79 flat fees for A/C unit addition and boiler/furnace replacement, and $270.64 for heating, ventilating and air conditioning for Group C houses/townhouses.

Yes. Send the examiner notice, submitted drawings and mechanical comments. Acadia can review what is missing, update the drawings/calculations where possible, and help prepare the resubmission package.

They often need clearer mechanical/exhaust information, make-up air coordination and equipment details. Toronto lists commercial kitchen exhaust, spray booth, dust collector and similar systems as special ventilation systems in the HVAC fee schedule.

No. Acadia prepares permit drawings, calculations and response support, but the municipality makes the final permit decision. The goal is to prepare a clearer, more complete package that reduces avoidable back-and-forth.

Who Our Clients Are:

Homeowners

Home renovations, additions, custom home builds and more. We help homeowners get their building permit fast with a complete set of drawings prepared in-house by our experts.

Commercial Property Owners

We work with restaurant owners, retail store owners, office managers and any other commercial owners to get their building permits approved fast and make their project reality.

Industrial Property Owners

We also specialize in working with all kinds of industrial properties, including distribution centres, warehouses and even grow houses that are sustainable and fully functional.

Contractors and Builders

We work with contractors and builders to ensure any project goes smoothly and the building permits get approved fast. We provide a full range of construction management services.