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Learn · Heating

What Happens During an HVAC Installation?

A typical residential installation runs one day for a straight furnace swap and up to two for a heat pump or a system needing duct modification. The sequence is: protect the work path, shut off and safely remove the old equipment, modify ductwork or electrical as needed, set and connect the new unit, pull vacuum and charge if refrigerant is involved, commission, then walk you through it.

What does commissioning mean?

Commissioning is the difference between installed and installed correctly. It is the measurement stage after everything is connected, and it is where a good crew separates itself.

  • Gas pressure set to the manufacturer's specification
  • Temperature rise measured and adjusted to the rating plate
  • Static pressure read to confirm the ductwork can carry the airflow
  • Refrigerant charge verified by weight and by superheat or subcooling
  • Safeties tested, thermostat configured, permit inspection arranged

What should you do to prepare?

Clear a path from the door to the equipment, keep pets in another room, and make sure the crew can reach the electrical panel and the outdoor pad. If the unit is in a crawlspace, clear the hatch.

What should you get at the end?

A walkthrough of the thermostat, the filter size and location, the maintenance interval, your warranty registration, and the commissioning numbers. If nobody hands you readings, ask.

Why You Can Trust This

We fabricate transitions and ductwork in our own shop, so when an install needs a custom fitting we make it on the job rather than forcing a stock part and losing airflow.

Step 3 · Act

Book an Installation Quote

Free estimates on replacements, with the scope written down before we start.

Family Owned Since 1986

Let's find the right solution for your home.

Have a question, need a repair, or thinking about an upgrade? Call us or request a free estimate — a real Big Valley person will help you figure out the best next step. No pressure, just honest advice.

11868 216 Street, Maple Ridge, BC V2X 5H8 · Mon–Fri: 8:00 AM – 4:30 PM