Ontario's HVAC Design Experts

Precision HVAC
Design Built
for Comfort.

Residential HVAC design and permit drawings for Ontario homes — from small additions to large custom builds. Serving the GTA since 1989.

35+
Years Experience
500+
Homes Designed
100%
Permit Ready
Professional HVAC mechanical room installation by BEC HVAC Design
Est.
1989
GTA Ontario
Design Package
Everything You
Need, Included.
  • Heat Loss & Gain Calculations (CSA F280)
  • Accurate HVAC Equipment Sizing
  • Custom Duct & Ventilation Layout Design
  • Expert HRV (Heat Recovery Ventilation) Design
  • Detailed Mechanical System Layout Drawings
  • Permit-Ready Mechanical Documentation
Expert Services
for Every Home.

From new builds to existing system upgrades, we bring precision engineering and 35 years of Ontario HVAC experience to every project.

01
HVAC Design & Permits

Full mechanical design packages for new construction and additions, engineered to Ontario Building Code and permit-ready.

02
System Consulting

Independent expert advice on equipment selection, system upgrades, and efficiency improvements for your existing home.

03
Diagnostics

Identify comfort issues, energy waste, and performance problems with a thorough diagnostic assessment of your current system.

04
Hydronic Systems

Custom design for radiant floor heating, boiler systems, and multi-zone hydronic layouts for maximum comfort and efficiency.

05
Hybrid Heat Pump

Design and integration of hybrid heat pump systems that pair with your existing furnace for year-round efficiency.

06
Commissioning

On-site system commissioning to verify your HVAC installation meets design specifications and performs as intended.

A Family Legacy
Built on Expertise.

BEC HVAC Design has been serving Ontario homeowners since 1989. The company was founded and built over 20 years by a dedicated team that became synonymous with quality, precision, and genuine care for every client.

Today, BEC is proudly led by Diego — a BCIN-qualified HVAC designer and the new owner who took the reins from his mother, carrying forward everything she built. Diego works alongside the same trusted team that has been in the trade since day one, bringing decades of combined experience to every project.

What hasn't changed is what matters most: the same small team, the same commitment to quality, and the same genuine compassion for every homeowner we work with.

35+
Years in the Trade
BCIN
Qualified Designer
GTA
Ontario-Wide Service
Every.
Client Treated with Care
BEC HVAC Design - mechanical installation
Our Promise

"We treat every home like it's our own. The same care and precision my mother brought to this work for 20 years is what we bring to every project today."

— Diego, Owner & Lead Designer
BEC HVAC permit drawing
BEC HVAC permit drawing
Designed Around
Your Comfort.
35+ Years of Ontario Expertise

Established in 1989, we've designed HVAC systems for hundreds of GTA homes — from small additions to large custom builds.

100% Permit-Ready Drawings

Every design package meets Ontario Building Code requirements and is stamped for permit submission — no revisions, no delays.

Homeowner-First Process

We prefer meeting homeowners directly during the design process to ensure your comfort needs — not just code minimums — are the priority.

What Homeowners Say.
★★★★★

"BEC HVAC transformed our home's comfort. The design process was seamless and our needs were prioritized throughout. Highly recommend."

John D.
Oakville, ON
★★★★★

"Exceptional service. The hybrid system design has cut our energy bills significantly. Professional, knowledgeable, and easy to work with."

Sarah L.
Mississauga, ON
★★★★★

"Used BEC for our custom build permit drawings. Everything was done right the first time — no revisions required. Will use again."

Mark T.
Burlington, ON
Ready to Start
Your Project?
Serving the GTA since 1989 — call or email us today.
Get a Free Quote
What We Offer

HVAC Design
Services

Comprehensive residential HVAC design services for Ontario homes — engineered for comfort, built for code.

01
HVAC Design & Permits

Full mechanical design packages for new construction and additions. Every drawing is engineered to Ontario Building Code and permit-ready on first submission.

02
System Consulting

Independent expert advice on equipment selection, system upgrades, and energy efficiency improvements. We work directly with homeowners, architects, and builders.

03
Diagnostics

Thorough assessment of your existing HVAC system to identify comfort issues, energy waste, and performance shortfalls — with clear recommendations for improvement.

04
Hydronic Systems

Custom design for radiant floor heating, boiler systems, and multi-zone hydronic layouts. Ideal for high-comfort custom homes and renovations.

05
Hybrid Heat Pump

Design and integration of hybrid heat pump systems that work alongside your existing furnace for optimal year-round efficiency and comfort.

06
Commissioning

On-site commissioning services to verify that your installed HVAC system matches the design intent and operates at peak efficiency from day one.

Systems We
Design Regularly.

Every home is different. We design across the full range of modern residential heating and cooling systems — always matched to your home's specific needs, layout, and budget.

01
High-Efficiency
Gas Furnace

The workhorse of Ontario homes. High-efficiency gas furnaces (96%+ AFUE) provide reliable, cost-effective heating tailored to our cold climate. We design complete forced-air systems including duct layout, equipment sizing, and heat loss calculations to ensure every room receives consistent, balanced comfort.

96%+ AFUE Permit-Ready CSA F280 Sizing
02
Combi Boiler
Systems

A combi (combination) boiler delivers both space heating and domestic hot water from a single compact unit — ideal for smaller homes, condos, and tight mechanical rooms. We design full hydronic distribution systems around combi boilers, including zone controls, piping layouts, and integration with radiant or baseboard emitters.

Heating + Hot Water Space-Saving Multi-Zone
03
Cold Climate
Hybrid Heating

The best of both worlds. A cold climate air-source heat pump pairs with your existing gas furnace to handle heating down to -25°C — automatically switching to the furnace during the coldest days. We design the full hybrid system including switchover setpoints, ductwork compatibility, and equipment selection to maximize efficiency across Ontario's full seasonal range.

Works to -25°C Lower Energy Bills Retrofit-Friendly
04
All-Electric
Heat Pump Systems

For homeowners moving away from gas entirely, a fully electric heat pump system provides year-round heating and cooling with zero on-site emissions. We design all-electric systems for new builds and retrofits, ensuring the equipment is properly sized, the ductwork is optimized for heat pump airflow, and backup electric heat is correctly integrated.

Gas-Free Heating + Cooling New Build Ready
05
Hydronic &
Radiant Floor

Radiant floor heating delivers warmth from the ground up — the most comfortable and efficient way to heat a home. We design complete hydronic systems including boiler selection, manifold layouts, in-floor tubing design, zone controls, and integration with domestic hot water. Suitable for new construction slabs, gypcrete, and staple-up applications.

Even Warmth Multi-Zone Slab or Gypcrete
06
Snow Melt
Systems

Hydronic snow melt systems embedded in driveways, walkways, and entryways eliminate the need for shovelling and salting — and protect concrete and interlock from freeze-thaw damage. We design glycol-based radiant snow melt systems integrated with your home's boiler plant, including sensor controls for automatic activation during snowfall.

Driveway & Walkway Auto Sensor Control Boiler Integrated
07
Mod & High
Velocity Systems

High velocity systems use small-diameter flexible ducts and compact outlets to deliver conditioned air in homes where traditional ductwork won't fit — heritage properties, tight renovations, and multi-storey additions. Modulating systems pair variable-capacity equipment with zoned distribution for precise room-by-room temperature control and whisper-quiet operation.

Tight Spaces Heritage Homes Zoned Comfort
Design Package
Every Package
Includes
  • Heat Loss & Gain Calculations (CSA F280)
  • Accurate HVAC Equipment Sizing
  • Custom Duct & Ventilation Layout Design
  • Expert HRV (Heat Recovery Ventilation) Design
  • Detailed Mechanical System Layout Drawings
  • Permit-Ready Mechanical Documentation
FAQs
Do you work with homeowners directly?

Yes — we prefer to meet homeowners during the design process to ensure comfort needs are properly captured, not just code minimums.

What is your service area?

We provide services throughout the Greater Toronto Area for residential HVAC projects, including new builds and renovation work.

What types of systems do you design?

Forced air, radiant floor heating, multi-furnace systems, hybrid heat pump systems, and HRV/ERV ventilation for homes of all sizes.

Do you offer system commissioning?

Yes — we provide on-site commissioning services to ensure your installed system performs exactly as designed and operates efficiently from the start.

Have a Project in Mind?
Call 416-850-0249 or send us a message.
Get a Free Quote
Our Work

Featured
Projects

A selection of real permit drawing packages completed for GTA homeowners and builders — from single-family renovations to large custom builds.

Real Projects,
Real Drawings.

Every project starts with a precise, permit-ready mechanical drawing package. Here's a sample of recent work completed for GTA homeowners and builders.

8 Carriage Hill Cl, Markham — Large Custom Home
Large Custom Home · Markham ON
8 Carriage Hill Cl — Dual System Basement
85 Allanbrooke Dr, Toronto
Forced Air · Toronto ON
85 Allanbrooke Dr
43 Victor Ave, Toronto
Multi-Zone · Toronto ON
43 Victor Ave
41 Ardagh St, Toronto
Heated Crawl Space · Toronto ON
41 Ardagh St
2 Fulham Dr, Toronto
Basement Design · Toronto ON
2 Fulham Dr
Work From the Field.
Multi-zone hydronic system
Hydronic · GTA
Multi-Zone Hydronic System
Navien combi boiler installation
Combi Boiler · GTA
Navien + Hydronic Manifold
GeoSmart mechanical plant
Geothermal · GTA
GeoSmart + ComboMax Plant
Driveway snow melt installation
Snow Melt · GTA
Driveway Snow Melt
Mitsubishi all-electric air handler
All-Electric · GTA
Mitsubishi Air Handler
Hydronic zone manifold
Hydronic · GTA
Zone Manifold
Full mechanical room
Combi Boiler · GTA
Full Mechanical Room
Have a Project Like These?
Let's talk about what you need.
Get a Free Quote
Reach Out

Get in Touch

Ready to start your project? Call us, email us, or fill out the form and we'll get back to you within one business day.

Let's Talk
About Your Home.
Phone
416-850-0249
Email
bechvac.diego@gmail.com
Service Area
Greater Toronto Area, Ontario
Response Time
Within 1 Business Day
Request a Quote