Commercial rooftop HVAC unit at dusk

Commercial HVAC Installation & Replacement in Snellville, GA

A rooftop unit that will not see another summer is better replaced in spring than in July. Find out which ones are finished.

Request a quote (678) 778-6648

  • Measured firstBefore anything is recommended
  • Snellville, GAGwinnett County and nearby
  • 20 yearsOwner’s time in the trade

Pierre Refrigeration Services supplies, installs and replaces commercial HVAC for businesses, schools and restaurants in Snellville and Gwinnett County: rooftop units, split systems, heating, ventilation and make-up air, and the controls that run them. Existing equipment is measured first, so each replacement is sized to the building’s load and you know why the old unit is not worth repairing.

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.

Request a quote (678) 778-6648

Rooftop units, split systems, heating, ventilation and controls, supplied and installed

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.

FactorPoints to a repairPoints to a replacement
Age of the unitWell within its working lifeNear or past it, with more failures likely
What failedA capacitor, contactor, fan motor, belt or controlThe compressor, or a cracked heat exchanger
Cost of the repairWell under half the price of a new unitAround half the price of a new unit, or more
ComfortHolds setpoint once repairedUndersized or oversized for how the building is used now
RefrigerantA current refrigerantR-22, no longer produced in the US

What an HVAC replacement quote depends on

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

Replacement planned around your building

What happens after you ask

  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.

Where we work

Questions operators actually ask

Do you supply the HVAC equipment, or only install it?
Pierre Refrigeration Services supplies the equipment and installs it as one job, so the unit that arrives is the one sized for the building.
Should I repair or replace my rooftop unit?
It depends on what failed and the condition of the unit, not on age alone. A capacitor, contactor or fan motor is a repair; a failed compressor on an older unit, or a cracked heat exchanger, usually is not. The unit is measured before you decide.
Can a new rooftop unit go on the existing curb?
A new rooftop unit sometimes fits the existing curb directly, and often fits with a curb adapter when its footprint is different. The curb, the roof and the ductwork connections are part of working out the quote.
Do you install energy-efficient models?
Energy-efficient models are part of choosing a replacement, and on a unit that runs long hours the running cost can matter as much as the price.

Other commercial HVAC services

Get the equipment measured and quoted

Tell us what you have and what it is doing, and we will work out the options with you.

Request a quote (678) 778-6648