Deep guide · Housing

Bungalow, two-storey and three-storey workloads

Storey count helps describe access, not contamination. A bungalow may have long basement branches and a simple vertical path. A two-storey house may have risers and bedrooms served by remote runs. A three-storey house may add a tall distribution path, enclosed chases or multiple zones. None of these shapes proves the ducts need cleaning.

The useful observation

Ask the contractor to count accessible trunks and branches, identify duct materials, locate the equipment and describe how openings are reached. Finished basements, narrow mechanical closets, high registers and condo rules can change labour more than floor area alone. The blower model and filter rack also determine equipment work independent of house size.

What a good scope includes

If the concern is temperature imbalance, record room and floor patterns in both heating and cooling weather. Stack effect, return path, duct balancing, insulation and thermostat placement may be involved. A duct-cleaning invoice should not promise equal temperatures. If the concern is debris, show which outlets release it and when; that evidence determines a targeted inspection.

Where the boundary sits

For a fair price comparison, provide the same house description and photographs to each bidder. Ask them to separate equipment cleaning, duct cleaning, airflow diagnosis and repair.