5.0/5 from 151 Google reviews
Licensed & Insured
27 Years Experience
Comfort & Efficiency Upgrade

Airflow Balancing & Zoning Systems for Consistent Comfort

Hot upstairs, cold downstairs? Master bedroom too hot while the living room is fine? We measure airflow at each register to diagnose imbalances before recommending solutions.

Book Comfort Audit — $89

The Problem: Uneven Room Temperatures

Hot Second Floor

Upstairs bedrooms are 5-8°F warmer than downstairs. Heat rises, but poor airflow balancing makes it worse. You end up overcooling the first floor to keep the second floor tolerable.

Wasted Energy

Cooling empty guest rooms to 72°F while someone sleeps upstairs at 78°F. No independent control means you condition the entire house to satisfy one room.

Comfort Conflicts

Family members fight over the thermostat. One person is freezing while another is sweating. A single thermostat can't accommodate different comfort needs in different areas.

How We Diagnose Airflow Problems

Airflow Measurement

  • Test CFM (cubic feet per minute) at each supply register
  • Compare delivered airflow to room size—identify over/under-supplied areas
  • Measure static pressure—high pressure indicates undersized ducts
  • Calculate total system CFM—should be 350-450 CFM per ton

Temperature & Humidity

  • Map temperature variations between rooms
  • Check temperature split (ΔT) at supply vs return
  • Test relative humidity in different zones
  • Identify hotspots caused by sun exposure, insulation, or ductwork

Solutions: From Simple to Advanced

1

Manual Damper Adjustment

If you have existing dampers in your ductwork, we adjust them to redirect more airflow to hot rooms and less to over-cooled rooms. Simple, no-cost solution when dampers exist.

$0–$200

Often included during routine maintenance or Comfort Audit

2

Duct Modifications

Add branch ducts to under-supplied rooms. Enlarge undersized ductwork. Install dampers where none exist. Fixes structural airflow problems without full zoning.

$400–$1,500

Cost varies based on attic accessibility and scope of work

3

Full Zoning System (Most Popular)

Install motorized dampers, zone controller, and multiple thermostats. Control each floor or area independently. Set different temperatures for different zones. Dramatic energy savings.

$2,500–$4,000

2-Zone System

$3,500–$5,500

3-Zone System

$4,500–$7,000

4-Zone System

  • Independent temperature control per zone
  • 20-30% energy savings by conditioning only occupied areas
  • Perfect for two-story homes or homes with bonus rooms
  • Requires variable-speed or multi-stage system for best results
4

Dual HVAC Systems

For extreme cases, install separate AC systems for upstairs and downstairs. Complete independence, but requires significant investment and two equipment sets.

$10,000–$20,000

Only recommended when single-system zoning won't work

Book $89 Comfort Audit

We'll measure airflow and recommend the right solution for your home

Common Questions

What is airflow balancing?

Airflow balancing adjusts dampers and duct sizing to deliver the right amount of conditioned air to each room. Rooms should receive airflow proportional to their size and heat load.

How much does a zoning system cost?

Two-zone systems run $2,500-$4,000. Three-zone systems run $3,500-$5,500. Four-zone systems run $4,500-$7,000. Cost includes motorized dampers, zone controller, and installation.

Will a zoning system lower my energy bill?

Yes. Zoning lets you cool or heat only occupied areas. Most homeowners save 20-30% on energy costs by not conditioning unused rooms.

Can you add zoning to an existing system?

Yes, if your system has a variable-speed blower or compatible equipment. We test your current setup during the Comfort Audit to confirm compatibility.

Ready for Even, Comfortable Temperatures?

Start with a Comfort Audit. We'll test airflow in every room and show you the most cost-effective path to balanced comfort.