A quote you can rely on comes from someone who visited, measured, and did a heat-loss calculation. Phone quotes and square-footage rules of thumb are guesses, and they are the main reason systems end up oversized. Ask for the calculation, the ductwork assessment, and a written scope naming the equipment model.
What a real quote contains
If any of these are missing, the number is provisional whatever the paperwork says.
- Equipment make, model, and efficiency rating, not just a tier name
- A heat-loss calculation, or a note that one was performed
- An assessment of existing ductwork and whether it needs modification
- Electrical or gas work included, and who pulls the permit
- Removal and disposal of the old equipment
- Warranty terms for both parts and labour
- A total, with any options priced separately
What to ask during the visit
Ask what size they are proposing and how they arrived at it. If the answer is based on the size of the old unit, that only repeats whatever mistake was made last time. Ask whether the ductwork can carry the airflow the new system needs.
Comparing quotes fairly
Line them up by scope before price. A cheaper quote that excludes the permit, the electrical, or duct modification is not cheaper, it is smaller. Our guide on comparing quotes goes deeper on the traps.
We size from a heat-loss calculation and check what your ducts can actually carry, because we fabricate ductwork ourselves and would rather fix airflow than sell you a bigger unit to overcome it.
Book a Free Estimate
Free estimates on replacements, with the scope written down before anything starts.