BPI-Certified HVAC Contractor in Northwest Georgia

What BPI Means

We Diagnose the House, Not Just the HVAC

BPI stands for the Building Performance Institute, the national organization that sets standards for diagnosing a home as one connected system. A BPI-certified technician is trained and tested to measure how a house actually performs: how much air it leaks, how its ductwork moves air, where insulation is missing, and how all of that affects your comfort and your power bill.

Your furnace, heat pump and air conditioner never work in isolation. They run against your home's envelope every hour they operate. When we're called for a hot upstairs, a humid living room or a power bill that keeps climbing, a BPI approach lets us ask the right question first: is the equipment the problem, or is the house making the equipment struggle? In many older Northwest Georgia homes, the house is a big part of the answer.

What We Measure

How a BPI Approach Finds the Real Cause

A BPI-certified diagnosis looks at the house first:

• Duct leakage: where the air is going. ENERGY STAR estimates that a typical home loses 20 to 30 percent of the air moving through its ducts to leaks, holes and poor connections. A bigger AC won't fix ducts that dump cold air into the attic; sealing them will.
• Insulation and air sealing: how fast the house loses it. Attic bypasses and missing insulation let summer heat in and winter heat out. A blower-door test shows how leaky the envelope is.
• Airflow: whether it's balanced. Undersized returns, closed-off rooms and poor duct design create hot and cold spots that no thermostat can fix.

Only after we've measured the house do we talk about equipment. If a system genuinely needs replacing, our Manual J load calculation is built on real data about your home, not square footage or the old unit's size. That helps avoid an oversized system that short-cycles, struggles to dehumidify and wears out early.

Northwest Georgia Homes

Why This Matters Around Calhoun, Rome, Dalton & Cartersville

Older homes in downtown Calhoun, mid-century ranches around Rome, mill-era houses near Dalton and the mix of older and newer subdivisions in Cartersville often share the same hidden problems: leaky ductwork in hot attics, thin or settled insulation, and air sealing that was never done. A brand-new HVAC system in a house like that can still leave you with high bills, muggy summers and uneven rooms.

We've been at 519 Pine Street in Calhoun since John Anderson founded the company in 1978. When you call, you reach a real person at our local shop.

That measured, documented approach is also what Georgia HER rebate projects are built on, and Anderson is an approved participating contractor for them.