AC Installation
AC installation in Chattanooga, sized to your house instead of the old box.
Most replacement systems are sized by matching the tonnage of the unit being removed. If that unit was wrong, the new one inherits the mistake. We start with a load calculation and finish with a commissioning report.
Why sizing matters more than brand
An oversized system is the most common and most expensive mistake in residential air conditioning. It cools the air fast, shuts off before it pulls the humidity out, and leaves you with a clammy house, short-cycling equipment, and a compressor that wears out early. A bigger unit doesn't fix any of that.
The only way to size correctly is to calculate the home's actual heating and cooling load. The equipment that gets installed should answer that number, not the label on the box that's coming out.
Our installation process
Every installation starts with a Manual J load calculation for your specific house, which accounts for its windows, insulation, orientation, and air leakage. Manual S selects equipment matched to that load. Manual D sizes and designs the duct system so the equipment can actually deliver what it's rated for.
Then we install it, and we commission it. We verify the finished system against ACCA Standard 5 with measured airflow, static pressure, temperature split, and refrigerant charge, which confirms it performs the way it was designed to. Those numbers are documented before we invoice.
Ductwork is half the system
New equipment bolted onto an undersized, leaky duct system will disappoint you no matter how efficient the box is rated. We measure static pressure and inspect the duct system, then correct the problems that would otherwise rob the new system of performance. New equipment on its own doesn't fix a comfort complaint that starts in the ducts.
Replace or keep repairing?
Replacement isn't always the answer, and we won't push it when a documented repair makes more sense. When the numbers do favor a new system, you'll see the load calculation, the equipment selection, and the duct plan. That is a written case for the recommendation, and you can take your time with it.
Common questions
AC Installation questions, answered straight.
- How do you size a new system?
- With a Manual J load calculation for your specific house, which accounts for windows, insulation, orientation, and air leakage. We size the equipment to that number rather than to the unit being removed. Oversizing is the most common and most expensive mistake in residential air conditioning.
- Why does the ductwork matter if I'm buying new equipment?
- New equipment on an undersized, leaky duct system disappoints no matter how efficient it's rated. We measure static pressure, inspect the ductwork, and correct what would otherwise rob the new system of performance.
- What is commissioning, and why does it matter?
- After the install we verify the system against ACCA Standard 5, measuring airflow, static pressure, temperature split, and refrigerant charge, and we document all of it before we invoice. That confirms the system performs the way it was designed to.
Where we work
AC Installation across Greater Chattanooga.
Same measured process in Chattanooga and the towns around it. Find your area:
Related services
The standard
- Measured diagnostic on every visit
- Findings and price in writing before any repair is approved
- Refrigerant recovered, weighed, and logged
Comfort Club members get priority dispatch and a reduced rate on service calls.
Financing available on jobs over $500.