In-House Engineering
for Custom New Builds.
From Blueprint to Commissioning. We provide full A-Z Mechanical Design, Custom Ductwork, and Hydronic Systems for Toronto & Muskoka's elite homes.
Most contractors guess. We calculate. Every custom build starts with a full Manual J Heat Loss & Gain analysis — then we design, fabricate, and install the complete mechanical system, in-house.
We Don't Guess.
We Engineer.
Every discipline — mechanical design, ductwork, hydronic systems, and fresh air — is handled by our own certified team from day one.
Mechanical Design
& Load Calculations
We perform full Manual J Heat Loss & Heat Gain calculations for every project. Insulation values, window specs, ceiling heights, and local climate data all factor into a precision-engineered HVAC system — sized exactly right, not over-built and not underpowered.
Custom Ductwork
Fabrication
Our in-house sheet metal team designs and fabricates precision airflow systems tailored to your floor plan. No off-the-shelf trunk lines — every run is calculated for optimal static pressure, balanced airflow, and whisper-quiet operation in high-end homes.
Hydronic & Radiant
Heating Systems
In-floor radiant heating is the gold standard for luxury comfort — silent, even heat at floor level with no forced air. We design and install complete hydronic systems including boiler, manifolds, PEX loops, and zoned control — engineered to your slab or subfloor.
Fresh Air Systems
(HRV / ERV)
Modern airtight builds require mechanical fresh air ventilation. We design and install Heat Recovery Ventilator (HRV) and Energy Recovery Ventilator (ERV) systems that meet Ontario Building Code's ventilation requirements — recovering up to 80% of exhaust heat while continuously delivering clean, conditioned fresh air.
15+ Years
Your Mechanical
Partner. One Call.
General Contractors and Architects trust H&C because we operate like an extension of your build team — not a subcontractor you have to manage. We show up, coordinate, document, and deliver.
Single-Source Accountability
One company, one contract, one point of contact for all mechanical — design, rough-in, trim-out, and commissioning. No finger-pointing between trades.
Code-Compliant Documentation
Full as-built drawings, Manual J reports, TSSA permits, and sign-off packages delivered to you at project close — everything your client's lawyer will ask for.
Precision Rough-Ins
We coordinate with your framing crew before studs go up. Our rough-ins land exactly where the drawings say — no site hacks, no surprises at drywall.
Everything Under One Roof
Mechanical Design
- → Manual J load calculations
- → Equipment selection & sizing
- → Duct layout drawings
- → Permit documentation
Forced Air & Ductwork
- → Custom sheet metal fabrication
- → High-efficiency furnace/AC
- → Multi-zone damper systems
- → Heat pumps & ductless splits
Hydronic & Radiant
- → In-floor PEX loop design
- → Boiler & manifold installation
- → Snowmelt systems
- → Radiant ceiling & wall panels
Fresh Air & IAQ
- → HRV / ERV installation
- → OBC ventilation compliance
- → HEPA & filtration systems
- → Humidity & air quality control
Plumbing & Water
- → Tankless water heaters
- → Domestic hot water systems
- → Combo heat / hot water units
- → Water softeners & filtration
Smart Controls
- → Nest / ecobee integration
- → Multi-zone smart thermostats
- → Building automation ready
- → Remote monitoring & alerts
Speak with an Engineer.
Not a Sales Rep.
Bring us your blueprints at any stage — concept, permit drawings, or framing. We'll walk through the mechanical design with you, identify opportunities, and provide a detailed scope and budget. No obligation.