Builders do not need another thing to chase. You need the mechanical package done right, done fast, and updated without drama when the client moves a wall.
We do the HVAC side of the permit for custom builders and small production builders across Ontario: heat loss, design, ventilation summary, energy form help and Schedule 1. Your trades install it.
Room by room at the design temperature for that lot.
Sized from the load, with the right output at design temperature for heat pumps.
Drawn to match your architectural plans.
The RMVDS and ventilation design for the permit.
Values matched to the package you are building to. See SB-12.
Signed by a BCIN-registered designer.
Re-runs for orientation and location are faster than new designs. Ask about multi-lot pricing.
Client moved a wall? Send the revised drawings and the HVAC follows.
We design. Your HVAC sub installs. We never sell equipment.
If comments come back on our design, we answer them.
A clean mechanical package keeps your permit moving, your inspections short, and your warranty file solid when a homeowner says a room is cold.
A design from another lot or town dropped onto this one. Different design temperature, different numbers.
Free designs that nobody stands behind when the house will not heat.
Architectural revisions that the HVAC drawings never caught up with.
The furnace installed is not the one on the permit. See changes after the permit.
Send the drawings for your next house with “builder” in the notes. Tell us how many lots and your permit dates. We will quote the work and plan it around your schedule. Building custom? See HVAC design for custom homes.
Next permit coming up? Send the drawings now. We fit it to your schedule.
Get Free Quote →Yes. The same model on different lots still needs a design for each lot, because orientation and sometimes the design temperature change. Re-running a model we already have is faster than starting fresh. Ask about pricing for multiple lots.
The duct layout has to match the architectural plans, so changes mean updates. Send us the revised drawings and we update the HVAC to match.
Yes. We design, your sub installs. We never sell or install equipment, so we are not competing with your trades.
The CSA F280 heat loss and gain, equipment sizing, duct or radiant layout, the ventilation summary (RMVDS), help with the SB-12 energy form, and Schedule 1, signed by a BCIN designer.
Most packages within 48 hours of payment once we have the drawings. For a series of lots, we can plan around your permit schedule.
Yes. Our roots are in ICF building, and high-performance houses are exactly where default values give the wrong answer. See ICF heat loss.
Send the drawings and your permit dates. We deliver the complete HVAC package, matched to your plans and signed.