Test and balance
Proof the air goes where the drawings say
We measure airflow at every diffuser and grille, adjust until it matches the design, and write the numbers into a report you keep.
The Washington State Energy Code asks for testing and balancing on most commercial systems, and the building department can ask to see the report. We do it ourselves, so the person who built the duct fixes what the numbers show.
What the report holds
Airflow at each diffuser, grille and exhaust
Fan speeds and damper positions recorded
Heating and cooling run and checked against the control sequence
A report formatted for your closeout binder
What drives the scope
What changes a balance visit
More diffusers and more zones mean more time on site.
Diffusers and zones
Each one is measured and adjusted.
Ceiling access
Tile ceilings are quick. Hard lids need access panels.
Occupied or empty
An empty suite is quicker, and we can come in after hours for an occupied one.
System type
Variable-volume boxes and fan-coil units are checked differently.
Changes after rough-in
A layout change late in the job can need a second visit.
Who needs the report
Your contractor, the landlord and the building department may each want a copy.
Questions about balancing
Do I need a test and balance report?
For most commercial mechanical systems the energy code asks for one. Ask your building department what applies to your project.
Do you balance systems you did not install?
Yes. We tell you if what we measure suggests a duct or equipment problem, and quote the repair separately.
When do you balance?
After the ceiling is closed and the equipment has started, and before final inspection and move-in.
Need a report for turnover?
Send the plans and the date your contractor needs it.