HVAC Installation in Greater Atlanta
Need HVAC installation with a trusted local team? We design and install efficient systems tailored to your home. Serving the Greater Atlanta area, including Atlanta, Marietta, and Alpharetta. Our licensed, background-checked technicians deliver quality work, backed by a 4.8 rating from 3,277 reviews. With over 125 years of experience and transparent options, we make upgrades easy. Beat the summer heat with a timely install. Schedule your free estimate today.
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free one-year maintenance agreement on all new installations
- free one-year maintenance agreement
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Free estimates on replacements
Request a free estimate for a new furnace in Atlanta or the surrounding areas today by calling Moncrief.
free onsite consultation and install estimate
Why Choose Us
125 years local experience
Licensed, insured experts
Trusted brand partner
Safe, vetted technicians
Upfront pricing options
What Our Customers Say
professionalism
“The team was professional, efficient, and informative during our install.”
quality
“Replaced two systems smoothly and cleaned up well each day.”
thoroughness
“They answered every question and ensured the new unit was set up perfectly.”
The key new HVAC installation requirements for a residential home are a verified load calculation, correctly sized and matched equipment, code-compliant ductwork, electrical and gas connections, proper ventilation, and documented final testing. Most installation problems start when the load calculation is skipped, which leads to oversized or undersized systems that short-cycle and waste energy. Permits and a final inspection are typically required by local authorities, with work performed to manufacturer instructions and applicable codes. Our Atlanta-area teams commonly perform a Manual J load calculation (room-by-room sizing) before recommending equipment. A detail we check often is return-air sizing, since undersized returns add noise and create uneven rooms.
Specific items professionals verify:
- Manual J sizing and Manual S equipment selection, documented.
- Sealed, insulated ducts with measured airflow and balanced registers.
- Dedicated electrical circuit, lockable disconnect, and correct condensate drainage with overflow safety.
- Safe furnace venting or heat pump clearances, plus proper refrigerant recovery and charging.
Always pull the required permit and schedule the final inspection before closing any access panels.
Updated: 2026-05-01
Need help in Vinings, GA? Call 770-341-2178 or book online.
The average HVAC installation cost for a new system is set after an on-site assessment because home design, equipment type, and project scope determine the price. The biggest driver is choosing the right system and size based on a professional load calculation so the equipment fits your home’s needs. Moncrief Heating & Air Conditioning provides a free on-site consultation and install estimate, includes a complimentary one-year maintenance agreement with new installations, and offers financing and available rebates. We install systems throughout the Atlanta area and account for local humidity and attic conditions that affect performance and setup. A well-done design avoids oversizing, which can cool quickly but leave the air clammy.
Key cost factors typically reviewed on site:
- System type: central air, ductless mini-splits, heat pumps, or geothermal
- Ductwork modifications, zoning, or returns for airflow
- Electrical, line-set, drain, pad/stand, and code updates
- Add-ons: humidifiers/dehumidifiers, air quality upgrades, smart thermostats
Schedule an on-site visit to receive a firm, written price tailored to your home.
Updated: 2026-04-08
Need help in Atlanta, GA? Call 770-341-2178 or book online. “The Moncrief team replaced my HVAC unit and could not have been more professional, efficient, and informative.” — Lauren L.
HVAC installation with new ductwork varies by home size, duct complexity, and equipment type. Exact pricing is confirmed after a free onsite consultation and install estimate. We offer custom duct designs with full load calculations through our engineering partner. New installations include equipment warranties and a complimentary one-year service plan. Financing is available, including 0% options on select installs. Current promos may offer up to $1,000 off or a free smart thermostat. Service available in greater Atlanta area, Alpharetta and Marietta.
Updated: 2025-12-29 00:00:00
Need help in Atlanta, GA? Call 770-341-2178 or book online.
"Moncrief did a fantastic job replacing our two mid-2000s HVAC systems on their last legs." — John M.
The cost to replace a home HVAC system depends on your home and chosen equipment. We confirm exact pricing after a free onsite consultation and load calculation. Cost drivers include system type (central air, heat pump, furnace/AC, ductless, boiler, geothermal), home size/design, and IAQ add‑ons. Seasonal promotions and financing can reduce upfront cost, including 0% financing options and up to $1,000 off on eligible installs. All new installations include equipment warranties and a complimentary one‑year service plan.
Updated: 2025-12-29
Need help in Atlanta, GA? Call 770-341-2178 or book online. "The Moncrief team replaced my HVAC unit and could not have been more professional, efficient, and informative." — Lauren L.
HVAC installation pricing depends on your home and system choice. Costs vary by size, ductwork needs, and equipment type (central air, heat pump, furnace/AC, ductless, or geothermal) in the Atlanta area. You’ll get a free onsite consultation and written install estimate. All new installs include equipment warranties and a complimentary one‑year service plan. Promotions may apply, including up to $1,000 off system replacement and 0% financing on select installs (subject to credit approval).
- Factors: home size, duct condition, electrical/gas work, and IAQ add‑ons.
Updated: 2025-12-29
Need help in Atlanta, GA? Call 770-341-2178 or book online.
"The Moncrief team replaced my HVAC unit and could not have been more professional, efficient, and informative." — Lauren L.
Installation cost for a new AC and furnace varies by home and system. We provide a free onsite consultation and install estimate. Price depends on home size, ductwork, equipment type (central air, high-velocity, heat pump, or furnace), and any add-ons like smart thermostats or air quality. All new installs include equipment warranties and a complimentary one-year service plan. Financing and promotions are available, including up to $1,000 off and 0% financing for 12 months, subject to credit approval, for Atlanta-area homeowners.
Updated: 2025-12-29
Need help in Atlanta, GA? Call 770-341-2178 or book online. "Moncrief did a fantastic job replacing our two mid-2000s HVAC systems on their last legs." — John M.
Heat pump installation cost for homeowners varies by home and system and is finalized after an on-site evaluation. The most common driver is correctly sizing the unit to your home’s needs and the scope of work to integrate it with your existing setup. Our team regularly installs heat pumps across the Atlanta area, including many homes in Duluth. A right-sized system based on a full load calculation often saves more over time than an oversized unit. Moncrief offers a free on-site consultation and install estimate.
What typically affects final price:
- Ductwork changes or repairs
- Electrical upgrades or new disconnects
- Efficiency rating and brand selection
- Thermostat, zoning, or condensate solutions
For the most accurate number, schedule an in-home assessment so we can measure, design, and provide a written quote.
Updated: 2026-04-16
Need help in Atlanta, GA? Call 770-341-2178 or book online. "They installed a new unit today and the installation went very well." — Richard K.
HVAC installation with new or modified ductwork is priced after an in-home assessment. Cost varies by home size, layout, and ductwork scope. We provide a free onsite consultation and install estimate. Our team performs load calculations and designs a system matched to your plans. All new installs include equipment warranties and a complimentary one-year maintenance agreement. Financing is available, including 0% for 12 months, and seasonal promotions up to $1,000 off on replacements; terms vary. Service available in the greater Atlanta area, including, Alpharetta, Marietta, and Roswell.
Updated: 2025-12-29
Need help in Atlanta, GA? Call 770-341-2178 or book online.
"Moncrief did a fantastic job replacing our two mid-2000s HVAC systems on their last legs." — John M.
Still have questions?
Have questions or need service? Contact our team today to discuss your needs, request a quote, or schedule an appointment.