Air balancing (TAB)
We measure airflow at every grille and diffuser and set the system to the design numbers.
- Supply, return, exhaust and fresh air
- Dampers, fan speeds and drives adjusted to design
- Equipment readings: amps, belts, filters
Balancing · Aeroseal duct sealing · NYC metro
Duct blaster testing, documented for the inspector.
What most people call a “duct blaster test” is a duct leakage test. We run it with Retrotec duct testing equipment, to the method and number your spec or code calls for, and hand you results the inspector can sign off on.
Certified & factory-trained Aeroseal dealerNCI certified air balancerBPI certifiedNYCLong IslandWestchesterNew Jersey
Balance reportexample · airflow in CFM
| Outlet | Design | Final | % of design |
|---|---|---|---|
| Supply | |||
| Office 201 · S-1 | 250 | 245 | 98% |
| Office 201 · S-2 | 250 | 258 | 103% |
| Conference · S-3 | 400 | 372 | 93% |
| Supply total | 900 | 875 | 97% |
| Return | |||
| Corridor · R-1 | 800 | 784 | 98% |
| Return total | 800 | 784 | 98% |
Duct blaster testing
Duct blaster testing across NYC, Long Island, Westchester & NJ
A duct leakage test pressurizes the duct system and measures how much air leaks out. Many new construction and renovation projects need it tested and documented before close-out. We test with Retrotec equipment, report the results, flag where the leaks are — and if the ducts don’t pass, we can seal them with Aeroseal and retest.
- BPI certified, testing with Retrotec equipment
- Tested to your spec or code requirement
- Sections or whole systems, residential and commercial
- Results documented for the inspector, engineer or owner
- Leak locations flagged so they can be fixed
- Didn’t pass? Aeroseal sealing and a retest, same company
Services
What we test and balance
New construction, renovations and existing buildings that never felt right. Residential and commercial. We can test the ducts, seal them and balance the system in one visit.
Certified dealer · Factory trained
Aeroseal duct sealing
Seals duct leaks from the inside, including the ones hidden in walls, ceilings and chases that can't be reached by hand.
- Leakage measured before and after, with a printed certificate of results
- More air reaches the rooms, less is lost in the walls
- Pairs with leakage testing and balancing
Hydronic balancing
Water-side balancing so every coil and terminal unit gets the flow it was designed for.
- Pumps, coils, boilers and chillers
- Flow set at balancing valves to design GPM
- Readings recorded for the report
Duct leakage testing
Pressure testing of duct systems to the project spec or code requirement.
- Sections or whole systems
- Results documented for inspection
- Leak locations flagged so they can be sealed
- Duct blaster tests with Retrotec equipment
Who we work with
Anyone who needs the air right
Mechanical contractors
Balancing scheduled around your close-out, with a report the GC and engineer can sign off on.
GCs & engineers
Testing to the spec, with design and measured numbers side by side for every outlet.
Building owners & managers
Hot and cold spots, tenant complaints, and re-balancing after a renovation or a layout change.
Homeowners
Rooms that never heat or cool like the rest of the house, measured and fixed at the source.
How it works
From request to report
Tell us about the job
Send the request below. Plans and the design schedule help us quote it accurately.
We schedule and test
We set a date that fits your schedule and take readings at every outlet and unit.
We adjust to design
Dampers, drives and valves are set until the readings match the design numbers.
You get the report
A clear balance report, emailed to you, ready for the engineer, inspector or owner.
The report
Numbers you can close out with
- Design vs. final for every outlet, with % of design
- Separate totals for supply, return, exhaust and fresh air
- Equipment data: model, serial, filter and belt sizes, amps before and after
- Emailed as a PDF when the work is done
Service area
New York metro
Commercial and residential work throughout:
New York CityAll five boroughs
Long IslandNassau & Suffolk
Westchester& the lower Hudson Valley
New JerseyNorth & central
Questions
Good to know
What is air balancing (TAB)?
Testing, adjusting and balancing. We measure the airflow at every grille and diffuser, adjust dampers, fan speeds and drives until the system matches the design numbers, and document it all in a balance report.
Do you work on homes as well as commercial buildings?
Yes. We balance and test new construction, renovations and existing buildings — commercial and residential — including homes with rooms that never heat or cool like the rest of the house.
What's in the balance report?
Design vs. final readings for every outlet with % of design, separate totals for supply, return, exhaust and fresh air, and equipment data — model, serial, filter and belt sizes, and amps before and after. It's emailed as a PDF when the work is done.
Can you seal the ducts too?
Yes. We're a certified, factory-trained Aeroseal dealer. Aeroseal seals duct leaks from the inside, with leakage measured before and after. We can test the ducts, seal them and balance the system in one visit.
Do you do duct leakage testing for inspections?
Yes. We pressure-test sections or whole duct systems to the project spec or code requirement, document the results for inspection, and flag leak locations so they can be sealed.
What areas do you cover?
New York City (all five boroughs), Long Island (Nassau and Suffolk), Westchester and the lower Hudson Valley, and north and central New Jersey.
Are you certified?
Yes. We’re NCI (National Comfort Institute) certified commercial and residential air balancers, BPI (Building Performance Institute) certified, and a certified, factory-trained Aeroseal dealer.
Do you do duct blaster tests?
Yes. What most people call a “duct blaster test” is a duct leakage test, and we run it with Retrotec duct testing equipment — to the method and number your spec or code calls for, with the results documented for the inspector.
How do I get a quote?
Send the request form on this page. Plans and the design schedule help us quote the job accurately.
Request a quote
Tell us about your project
Send the details and we'll get back to you with a quote, usually within one business day.
Prefer to talk? Call (516) 744-2448. Have plans to send? Email quotes@citywideairbalancing.com
Thanks, we've got it.
We'll review your project and get back to you, usually within one business day. If you have plans, email them to quotes@citywideairbalancing.com.