Furnace Installation in Peachtree Corners, GA

Southeast installs gas furnaces in Peachtree Corners, GA: free in-home estimate, Manual J sizing, Daikin single-stage, two-stage or variable-speed options in writing, permit pulled, warranty registered. A planned furnace installation is a Peachtree Corners job that fits us well.

When is the right time to plan a furnace installation in Peachtree Corners?

Before you need it. That's true everywhere, but it matters more at the edge of our service area. In fall, when the schedule is open, we can run the estimate, size the furnace and install it on a day you pick, with the equipment loaded before the crew leaves our Buford office. In the middle of a January cold snap, every furnace in North Georgia that was going to fail does, and an urgent replacement in Peachtree Corners competes with everything closer to the office. We'll still take it if we can do it right. We just can't offer the scheduling flexibility we have in October.

Signs it's time to plan rather than wait: a furnace that needed a repair last winter and another the winter before, a cracked heat exchanger found at a tune-up, rooms that never warm evenly, or a furnace installed by someone who guessed at the size. If you're not sure your furnace is done, furnace repair in Peachtree Corners is where to start; we'll tell you honestly which side of the line it's on.

What happens at the free in-home estimate?

A comfort consultant visits, looks at the existing furnace, the ductwork, the venting, the gas supply and the electrical, and asks what you've disliked about the old system. Then we run the Manual J, the industry method for sizing heating equipment to the house rather than copying the old nameplate. A furnace that's too big cycles on and off and heats unevenly; one that's too small runs and runs. The number comes from the house. You get written options with prices, warranties and, if you want financing, a monthly payment example. No pressure to decide that day; a Peachtree Corners estimate is a planned visit, and so is the decision.

Single-stage, two-stage or variable-speed: which furnace fits?

• Single-stage runs at full output or not at all. Reliable, straightforward, 1-year Southeast labor warranty.
• Two-stage runs on low most of the time and steps up on the coldest days, which evens out the temperature swings. 3-year Southeast labor warranty.
• Variable-speed adjusts output continuously and pairs with a Daikin Fit system when you're replacing cooling too. 5-year Southeast labor warranty.

Daikin is our primary brand and we're a Daikin Premier Dealer. If your air conditioner or heat pump is also near the end, replacing both at once is often the better job because the indoor and outdoor equipment are matched; every new Daikin cooling system we install uses R-32 refrigerant. Our heating installation page covers heat pumps and dual-fuel options, and HVAC replacement covers the complete system.

What does Southeast handle on installation day from Buford?

The crew arrives with the furnace and the parts on the truck, removes and disposes of the old unit, sets and connects the new one, verifies the venting and gas connections, starts it up and confirms it's heating as designed. We pull the required permit and register the manufacturer warranty for you. If a problem is ever caused by our workmanship, Southeast will return and correct it at no charge. The furnace installation hub goes deeper on what a proper install includes and what a permit inspection looks for.

What does furnace installation cost in Peachtree Corners?

The total depends on the furnace tier, the size the Manual J calls for, venting and duct changes, electrical needs and the warranty you choose, so we don't post cash prices online; the free estimate puts a real number in writing. Current offers include up to $1,000 off a new system (some restrictions may apply). Financing through Service Finance includes 18 months at 0% interest, 12 months with no payments and no interest, and 180-month terms at 9.99%, with heating payment examples from $59 a month, with credit approval; see financing terms. Our new-system cost guide explains the variables before you get the estimate.

After the install, the Southeast Family Plan covers the new furnace: $149 a year for the first system, two visits including heating safety checks, standard 1-inch pleated filters, 15% off qualifying repairs and priority service. At the edge of our area, priority scheduling is the benefit you'll notice.

Get a free furnace estimate in Peachtree Corners

Get a Free Replacement Estimate online or call or text (770) 265-8308, and our office will confirm a visit that works for a Peachtree Corners address. Southeast is family owned, founded in 2022, licensed in Georgia (CR110452), with a 5.0 Google rating across 979 five-star reviews as of September 2026. The full lineup is under heating services.