Aaron Plumbing installs new heating and cooling systems for homeowners throughout Roswell, Alpharetta, Sandy Springs, Milton, and the north Atlanta metro. We size the system correctly for your home, handle the full installation, and don’t leave until everything is working the way it should.
Systems We Install
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Central Air Conditioning
Split-system central AC installation for homes with existing ductwork. We remove the old equipment, install the new system, charge with refrigerant, and verify performance before we leave.
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Gas & Electric Furnaces
New furnace installation including gas line connections, venting, and thermostat wiring. We install high-efficiency units from all major manufacturers and handle permit requirements.
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Heat Pumps
Air source heat pump installation for homes looking to handle both heating and cooling with a single efficient system. Particularly well-suited to the north Atlanta climate.
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Ductless Mini-Splits
Single-zone and multi-zone ductless systems for additions, sunrooms, garages, and homes without existing ductwork. No duct installation required — we run refrigerant lines and mount the wall units.
Why Proper Sizing Matters More Than Brand
The single biggest mistake made in HVAC installation is installing the wrong size system. An oversized system short cycles — it reaches temperature quickly, shuts off, and turns back on repeatedly. This creates excessive wear, poor humidity control, and inconsistent comfort. An undersized system runs constantly and can’t keep up on the hottest or coldest days. Neither situation is acceptable, and both are common when a contractor simply replaces what was there before without evaluating whether it was correctly sized to begin with.
Proper sizing requires a Manual J load calculation — an assessment of your home’s square footage, insulation levels, window area and orientation, ceiling height, and local climate data. We perform this calculation before recommending equipment. A correctly sized system runs in longer, more efficient cycles, controls humidity better, and lasts longer than an improperly sized one.
What the Installation Process Looks Like
We start with a site visit to assess your existing system, ductwork condition, electrical capacity, and any other factors that affect the installation. From there we give you a written quote covering equipment, labor, permits, and any ancillary work needed — like electrical panel upgrades or duct repairs. Once you approve, we schedule the installation. Most residential system replacements are completed in one day. We pull any required permits, install the equipment, commission the system, walk you through the thermostat operation, and clean up completely before we leave. We also register the equipment warranty on your behalf.
Frequently Asked Questions
How do I know when it’s time to replace rather than repair?
A general guideline: if your system is over 10–12 years old and the repair cost exceeds 50% of the cost of a new unit, replacement is usually the smarter financial decision. We’ll give you the numbers for both options — repair cost versus replacement cost versus estimated energy savings from a higher-efficiency unit — and let you decide without pressure.
What brands do you install?
We install equipment from Carrier, Trane, Lennox, Rheem, Goodman, American Standard, and other major manufacturers. We’ll recommend what we think is the best fit for your home and budget — not what generates the highest margin for us.
How long does a new system installation take?
Most standard split-system replacements are completed in one day. More complex installations — multi-zone mini-splits, systems requiring duct modifications, or installations with electrical panel work — may take longer. We’ll give you an accurate timeline before scheduling.
Do you handle permits?
Yes. We pull all required permits for HVAC installations in Roswell, Alpharetta, Sandy Springs, Milton, and surrounding municipalities. Unpermitted HVAC work can create problems when you sell your home — we do it right.
Are there rebates or tax credits available?
Potentially. High-efficiency heat pumps and certain other equipment may qualify for federal tax credits under current energy efficiency incentive programs. Georgia Power also offers rebates for qualifying equipment. We’ll flag any incentives that apply to the equipment we’re recommending — ask us about this during the estimate.