HVAC Design Clarington — Bowmanville, Courtice & Newcastle. BCIN-Stamped. Delivered in 48 Hours.
Upload your floor plans today. Get a firm quote in 24 hours. Receive your BCIN-stamped CSA F280 heat loss report, HVAC design & mechanical drawings — calculated at Clarington’s correct -20°C design temperature and accepted by the Municipality of Clarington.
Clarington Is Not the GTA — and Your Heat Loss Calculation Shouldn’t Be Either
Clarington sits east of Toronto’s -18°C zone. The SB-1 design temperature here is -20°C — two degrees colder — and contractors carrying GTA habits east on the 401 get caught by it every season. A heat loss calculation run at the wrong design temperature is one of the most common reasons Ontario building departments send permit applications back.
Sized at Toronto’s -18°C
A GTA-default calculation undersizes a Bowmanville or Newcastle home. The system can’t hold temperature on a real design-day cold snap — and the plans examiner knows the local value.
Undersized & flaggedSquare-Footage Rule of Thumb
“BTU per square foot” ignores your envelope, your windows, and your exposure. It’s not a CSA F280 calculation and it won’t be accepted with your permit application.
Rejected at intakeCSA F280 at -20°C
Room-by-room load at Clarington’s actual SB-1 design temperature, with your real wall assemblies and glazing. BCIN-stamped, MVDS and Schedule 1 included.
Accepted first submissionExactly What Clarington’s Building Division Expects to See
Whether you’re building a custom home in Newcastle, adding a legal basement apartment in Courtice, or converting to a heat pump in Bowmanville — the OBC 2024 documentation requirements are the same, and this package covers all of them.
Room-by-Room CSA F280 Heat Loss & Gain
Every room calculated separately at Clarington’s -20°C design temperature — walls, windows, ceiling, floor, infiltration.
Equipment Sizing Sheet
Right-sized furnace, heat pump, boiler, or AC matched to the calculated load — not a square-footage guess.
Duct or Hydronic Layout Drawings
Fully dimensioned supply and return layout with airflow for every room per HRAI standards.
MVDS & Ventilation Design
The Mechanical Ventilation Design Summary — mandatory on every Ontario new-home permit since January 1, 2025 — plus HRV/ERV selection.
Schedule 1 & BCIN Stamp on Every Page
Signed designer declaration and BCIN stamp throughout — exactly what the Municipality of Clarington requires before issuing your permit.
This certified figure tells your HVAC contractor exactly what size furnace or heat pump to install — and it’s the number the Municipality of Clarington’s plans examiner checks before issuing your permit.
Serving All of Clarington & Durham Region
Clarington’s housing mix runs the full range — new subdivisions in Bowmanville and Courtice, rural builds toward Orono and Enniskillen, and lakefront properties in Newcastle with real wind exposure off Lake Ontario. The F280 methodology accounts for each; a rule of thumb doesn’t.
Legal basement apartments are one of the most active permit categories in Durham right now. A second suite needs its own heat loss calculation, independently controlled heating, and an MVDS — extending the upstairs furnace does not comply. We produce the complete suite package.
Only Need the Heat Loss Report?
The full HVAC design package is $695 flat. If your project only requires the certified CSA F280 heat loss calculation at Clarington’s -20°C, that’s $395 — same 48-hour delivery.
→ Order a certified heat loss calculationHVAC Design & Permits in Clarington — Answers Before You Ask
The questions Clarington homeowners and builders ask most — answered in plain language.
Do I need a BCIN designer for a house in Bowmanville?
Yes, in almost every case. Ontario requires HVAC designs submitted for permits to be signed by a BCIN-registered designer or a licensed P.Eng. Your installing contractor usually can’t sign — they’re licensed to install, not design. Who can sign an HVAC design in Ontario →
What design temperature does Clarington use?
The SB-1 January 2.5% value for the municipality is -20°C — two degrees colder than Toronto’s -18°C. Lakefront homes in Newcastle and open rural sites near Enniskillen also see different wind exposure, which the F280 calculation accounts for room by room.
Do you handle legal basement apartment packages in Courtice and Bowmanville?
Yes — a legal second suite needs its own heat loss calculation, independently controlled heating, and an MVDS. We produce the complete BCIN-stamped suite package. Legal basement apartment HVAC requirements →
How fast can I have the permit package?
Firm quote within 24 hours of uploading your plans; complete BCIN-stamped package within 48 hours of payment. If we miss the 48 hours, it’s free.
Upload Your Plans. Clarington Permit Package in 48 Hours.
Stop waiting on designers with two-week backlogs. Get the certified CSA F280 heat loss and mechanical drawings the Municipality of Clarington requires — calculated at the correct -20°C.
- Free quote — no commitment to buy
- CSA F280 at Clarington’s correct -20°C design temperature
- MVDS and Schedule 1 included
- BCIN-stamped on every page
- 48-hour delivery after payment