Zoning splits one system into areas with their own temperatures. Dampers in the ducts open and close on the call of separate thermostats, so the upstairs and the downstairs, or the bedrooms and the living areas, stop fighting over one setting.
It works well on a system with sound ducts and equipment that can turn its output down. On the wrong system it causes noise and short cycling, so the first step is finding out which you have.
Closing part of the duct system raises the pressure in the rest. Two-stage and variable-speed equipment handles that well because it can turn down. A single-stage system on marginal ducts gets noisy and short cycles, which is why the first visit looks at both before any zones are drawn.
Why people call us for HVAC zoning
- Upstairs hot, downstairs cold
- Rooms rarely used
- One thermostat for a large house
$69 diagnostic, credited toward the work
- Zoning design
- Dampers and controls
- Thermostat per zone
- Balance and test
How a zoning job goes
Zoning needs ducts that can be divided sensibly and equipment that tolerates part of the system being closed off, so the first visit looks at both before any zones are drawn.
The zones follow how the house is used and heated: floors, wings, bedrooms against living space. You get a written quote with the dampers, the control panel, the thermostats and the price.
Dampers and controls go in, each zone gets its thermostat, and airflow is checked with every combination of zones calling. Our labor carries a one-year warranty on top of the manufacturer's.
We repair, maintain and install these brands. Logos identify the equipment we work on and do not imply endorsement by the manufacturer.
Before you call
Equipment that can turn down
A single-stage furnace is full output or off; a two-stage runs a low fire most of the time. The difference matters most when zones close dampers and the system has to run with part of the ducts shut. Read more
Ducts have to be sound first
Zoning adds dampers and pressure to a duct system. Leaky, undersized or crushed runs get worse under that, so the ducts get inspected before zoning is quoted. Read more
Zoning versus ductless heads
Good ducts: zone them, the smaller job. Leaky or missing ducts: ductless heads give each room its own control without relying on the ducts at all. Read more
Savings come from runtime
Like a smart thermostat, zoning only saves when it changes how long the system runs: stop conditioning rooms nobody is in and the hours drop. Read more
One thermostat per zone, and the type matters
Each zone gets its own thermostat wired to a zone control panel, and smart models need continuous power from a C-wire, which older houses often lack. Matching the thermostats to the panel and the equipment is part of the quote. Read more
Related
Common questions
One thermostat controlling rooms that behave differently: an upstairs that runs hot, a wing that gets afternoon sun, bedrooms that are empty all day. Each zone gets its own thermostat and its own dampers.
No. Closing part of the duct system raises the pressure in the rest. Two-stage and variable-speed equipment handles that well because it can turn down. A single-stage system with marginal ducts may get noisy and short cycle. Read more
If the house has good ducts, zoning them is the smaller job. If the ducts are leaky, undersized or missing, ductless heads give each room its own control without relying on them. Read more
It can, because you stop conditioning rooms nobody is using. Like a smart thermostat, the only lever is runtime: it saves when it changes how long the system runs. Read more
One year on our labor, plus the manufacturer's warranty on parts and equipment.
Yes, on new systems, through Wisetack: monthly plans on approved credit. Checking your options does not affect your credit score. Read more
Usually two or three make sense in a house: floors, or living areas against bedrooms. More zones mean smaller shares of the airflow when only one is calling, which is where single-stage equipment struggles. The equipment and the ducts set the practical limit.
“Amazing Professional And quick service the AC technician Jonathan arrived same day one hour after he called … He replaced the filters clean the Coils … Our AC never was Cold like this and the airflow is amazing”
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818-277-5056Licensed #1119892 · Veteran-owned · Pasadena & Reseda