Commercial HVAC Installation & Replacement in Snellville, GA

When replacing your HVAC is the right call

Most HVAC equipment can be repaired many times. These are the signs it has reached the point where a new unit makes more sense.

• The compressor has failed on an older unit, and the repair would cost around half the price of a new one, or more
• A heat exchanger is cracked, which on a gas-fired unit usually means replacement rather than repair
• The unit runs on R-22, a refrigerant no longer produced in the US
• The same failure keeps coming back every cooling season
• Zones never hold setpoint because the building is used differently from when the unit was sized
• The energy bill keeps rising with no change to hours or occupancy

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• Rooftop units

  Packaged units for stores, offices, restaurants and classrooms, replaced on the existing curb where it fits.

• Split systems and heat pumps

  For offices, server rooms and spaces a rooftop unit does not reach.

• Heating

  Gas or electric heat that has to hold the building through winter mornings.

• Ventilation and make-up air

  Fresh air for the building, and make-up air balanced against kitchen exhaust so a hood does not pull conditioned air out of the room.

• Thermostats and controls

  Controls and scheduling that stop a building heating or cooling empty rooms.

Measured first, so the replacement is the right one

Before a unit is replaced, it is measured: refrigerant pressures, temperature split, amperage, airflow, and for heating the heat exchanger and burners. That shows whether the unit is finished or one repair away from more good seasons.

When a unit is worn out, the same measurements size the replacement to the building as it is used now: the space, the occupancy, the hours and the kitchen if there is one. A unit matched to the real load holds setpoint and costs less to run than one copied from the old nameplate.

Repair or replace: what points each way

No single factor decides it. This is how the findings from a visit usually read.

What an HVAC replacement quote depends on

Several of these are only clear once someone has seen the equipment and the space.

• The size of the unit and the type of system
• Whether the new unit fits the existing roof curb, or needs an adapter
• Whether a crane is needed to lift a rooftop unit into place
• Whether the existing ductwork, gas and electrical supply can be reused
• The controls and thermostats that go with it
• Timing: replacement planned for a quiet season, or after a failure in the middle of one

Replacement planned around your building

• Restaurants

  Make-up air and the dining-room unit sized together, so the hood and the room stop fighting each other.

• Stores and offices

  Units can be replaced one at a time, so the building stays open while the work is done.

• Schools

  Anything that takes a zone offline is planned for the summer break, when the building is empty.

1. Ask for a quote

   Tell us the equipment, roughly how old it is and what it is doing.

2. Look at the job

   Where the job needs it, a site visit measures the existing units, the roof and the space.

3. Options

   You see what was found and the options: a repair where it makes sense, a replacement where it does not. Nothing is agreed until you decide.

4. A date that suits you

   Planned work is scheduled for a time that suits the building.

5. Install and start-up

   The new equipment is installed, started and checked on heating and cooling before it is handed over.

Other commercial HVAC services

• Commercial HVAC Service & Repair

  When something has stopped working: the symptom, the diagnosis, the repair.

• Commercial HVAC Maintenance

  Filters, belts, coils, drains, heating and controls, looked after before the season that tests them.

• Commercial Rooftop Unit Maintenance for Restaurants

• Why Your Commercial Kitchen Is Too Hot (And Why It Is Usually Not the AC)