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New systems · Free written estimate

HVAC Installation in Cumming, GASized right, installed right.

Short answerCool Season installs air conditioners, gas furnaces, heat pumps and dual-fuel systems for new homes, additions and replacements. Typical installed prices: AC $5,500 to $14,500, furnace $4,500 to $11,500, heat pump $7,500 to $16,500. Every estimate is free, written and starts with a load calculation.
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Installation at a glance

AC
$5,500 – $14,500
Furnace
$4,500 – $11,500
Heat pump
$7,500 – $16,500
Dual fuel
$11,000 – $19,000
Warranty
10 yr parts · 1 yr labor
Financing
0% APR options

What we install

Before and after

Real Cool Season installations. Drag the handle to compare.

After: two new air conditioners on a rooftop
Before: two old air conditioners on a rooftop
After: a new air conditioner beside a home
Before: two old, rusted air conditioners beside a home

Installed prices

The same ranges apply whether it is a first-time install or a replacement. Your estimate shows the exact price for your home.

SystemTypical installed price
Air conditionerWith matched indoor coil$5,500 – $14,500
Gas furnace80% to 96% AFUE$4,500 – $11,500
Heat pump system$7,500 – $16,500
Dual fuelHeat pump + gas furnace$11,000 – $19,000
Ductless mini-splitWritten quote

Ductwork, gas line or electrical service changes are listed separately on the estimate when a home needs them.

What every installation includes

  • Load calculationWe size the system from the house: square footage, insulation, windows, sun and ducts.
  • Duct and airflow checkExisting ducts inspected; new runs or returns quoted separately if needed.
  • Matched equipmentIndoor and outdoor equipment that are rated to work together.
  • Refrigerant lines and vacuumLines sized, pressure tested and pulled to a deep vacuum before charging.
  • Electrical, drain and thermostatDisconnect and wiring, condensate drain with proper slope, thermostat set up.
  • Permit and inspectionWe pull the permit and handle the county inspection.
  • Startup and walk-throughCharge, airflow and temperatures checked and recorded, then we show you the system.
  • Warranty registration10-year parts warranty registered for you, plus 1 year of labor.

When you need installation

New homes and additions

Basements, sunrooms, in-law suites and bonus rooms, either tied into the existing system or on their own system.

Replacing an old system

Usually done in one day, with Good, Better and Best options side by side.

Upgrades

Window units to central air, single-stage to variable-speed, or adding a heat pump for dual fuel.

How it works

  1. Home visitWe measure, look at ducts, gas and electrical, and answer questions.
  2. Estimate on your phoneThree options with model numbers, prices and monthly payments.
  3. Approve onlinePick an option and sign when ready. No pressure.
  4. Install dayPermit, install, startup, walk-through and warranty registration.

Questions we hear

How much does a new HVAC system cost in Cumming?
Typical installed prices are $5,500 to $14,500 for an AC, $4,500 to $11,500 for a gas furnace, $7,500 to $16,500 for a heat pump and $11,000 to $19,000 for dual fuel.
How long does an installation take?
Most replacements are done in one day. New installs with duct, gas line or electrical work usually take one to two days.
Do you pull permits?
Yes. We pull the permit and handle the county inspection on every installation that needs one.
Is the estimate free?
Yes. The estimate is free and written, with three options you can compare on your phone.
Do you offer financing?
Yes. Financing with 0% APR plans is available, subject to credit approval. Each option on your estimate shows the monthly payment next to the pay-in-full price.
What warranty comes with a new system?
The manufacturer's 10-year limited parts warranty, which we register for you, plus our 1-year labor warranty.

Prices and details reviewed November 2026.

Planning a new system?

Free written estimate, sized by load calculation, 0% APR financing options.

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