HVAC Company in Gwinnett County
Serving Gwinnett County Since 1947: ACE-Certified Technicians, Service Guarantee Coverage
Peachtree Service Experts has served the Greater Atlanta area since 1947, and our Duluth location puts us inside Gwinnett County, close to the communities we work in every day. Our ACE-certified technicians are licensed, bonded, and insured, and we back every job with the Service Experts Guarantee. We’re available 24/7 when you’re ready to schedule.
We cover the full range of residential and commercial needs: AC Services, Heating Services, Heat Pumps, Ductwork Services, Indoor Air Quality Services, Energy Efficient Solutions, Emergency HVAC Services, and Commercial HVAC. Whether you need a same-day repair or a full system replacement, one call reaches a team that handles it all.
Call (678) 336-5225 to schedule with an HVAC contractor in Gwinnett County. You can get an instant online quote for HVAC systems and Indoor Air Quality Services at any time.
HVAC Services Available Throughout Gwinnett County
Georgia’s climate is hard on HVAC equipment. Long cooling seasons push air conditioners through months of near-continuous operation, and cold winter nights require heating that performs when it counts. Our technicians are trained on all major brands and systems, so no matter what’s installed in your home, we can diagnose it, repair it, or replace it.
- AC Services: Seasonal tune-ups, refrigerant checks, diagnostics, and full system replacement when your current unit has reached the end of its useful life.
- Heating Services: Furnace inspection, repair, and installation to keep your home comfortable through Georgia’s cooler months.
- Heat Pumps: Heat pumps are a strong fit for the Gwinnett County climate, providing efficient heating and cooling in one system. We install, service, and replace them.
- Ductwork Services: Leaking or deteriorating ductwork wastes conditioned air and strains your system. We inspect, seal, and repair duct systems in existing homes.
- Indoor Air Quality Services: Humidity control, air filtration, and ventilation solutions that address what your thermostat can’t.
- Emergency HVAC Services: Urgent heating and cooling failures don’t wait for business hours. Emergency HVAC Services are available when you need them most.
- Energy Efficient Solutions and Commercial HVAC: Upgrades that can reduce operating costs, and commercial service for Gwinnett County businesses.
What Sets Peachtree Service Experts Apart
Peachtree Service Experts is part of the national Service Experts network, spanning more than 75 service centers across 31 states and serving more than 2,500 homes and businesses every day. Our Gwinnett County customers get that national infrastructure backed by a local team that has been operating in Greater Atlanta since 1947.
ACE Certification & the Service Experts Guarantee
ACE Certification isn’t a participation badge. It requires rigorous technical training and ongoing skill verification, and every technician on our team holds it. Combined with licensing, bonding, and insurance, the person who shows up at your door has met a verifiable national standard before touching your system.
The Service Experts Guarantee backs our work with a 1-Year Installation Guarantee and a 30-Day Service Guarantee. Under specified conditions, if an installation or repair doesn’t hold, we can return to re-perform or make additional repair attempts at no additional cost. We also review recommended solutions and pricing before any work begins, so there are no surprises on the invoice.
Membership Plans for Gwinnett County Homeowners
Unexpected HVAC failures are expensive, and Georgia’s peak summer heat makes a mid-season breakdown especially disruptive. Both membership programs are designed to help reduce that risk.
Service Experts Advantage Program
This program provides brand-new equipment with no down payment, coverage on parts and labor, annual maintenance, and priority service. All of it is included for one monthly payment. It’s a leasing arrangement, not a purchase, so there’s no large upfront equipment cost.
Maintenance+
Maintenance+ includes annual tune-ups, priority service scheduling, exclusive member discounts on repairs, and 24/7 support. Regular maintenance can extend equipment life and help catch developing problems before they turn into emergency calls.
Communities We Serve in Gwinnett County
Our Duluth office is inside Gwinnett County, which helps keep response times short across the service area. We work throughout the county, including Duluth, Lawrenceville, Suwanee, Norcross, Peachtree Corners, Snellville, Buford, and surrounding communities. If you’re in Gwinnett County and need an HVAC repair, a replacement quote, or a routine maintenance visit, we’re already nearby.
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We’ll Make Your Payments for 6 Months
With any new HVAC, Indoor Air Quality, Water Heater or Water Treatment Service Experts Advantage Program lease agreement, we will make your payments for the first 6 months.
Valid on new Advantage Program lease agreements from 7/1/26 to 9/30/26. Customer owes $0 for the first six months; regular monthly lease payments begin thereafter. Early termination during promotional period will result in charges for elapsed months. See your full Advantage Program Lease Agreement for complete terms and conditions, including total lease costs and payment schedule. Jul 1, 2026 - Sep 30, 2026 -
Up to $500 off new HVAC system when bundled with water and air quality upgrades
When you lease or purchase a new HVAC system, save up to $500 when you add qualifying water treatment or indoor air quality solutions.
Offer available on qualifying products. $300 off when bundled with one water or indoor air quality product. $500 off when bundled with two water or indoor air quality products. Promotion must be claimed by 8/9/26 and installed by 8/15/26. Jun 24, 2026 - Aug 9, 2026 -
Earn up to $1,300 in rebates when you purchase a qualifying Lennox system
System rebate requires the purchase of a Lennox indoor unit, an outdoor unit and a qualifying thermostat. System add-ons do not qualify for an induvial rebate and cannot be combined with individual offers. Rebate offer valid from 7/6/26 to 8/14/26 and must be installed by 8/21/26 and submit claims by 9/20/26. Rebate is paid in the form of a Lennox prepaid Mastercard ®.
All rebate information found at https://www.lennox.com/residential/buyers-guide/offers-and-savings/promotions/. Equipment and rebate offers vary by Service Experts location, call your local Center for more details. Jul 8, 2026 - Aug 14, 2026 -
80% off first year’s price of an annual Plumbing Membership.
Upgrade your membership to include plumbing coverage for only $12 for the first year*.
Promotional plumbing add-on price; save $48 in the first year with discount. Annual membership promo price of $12 must be paid up front. After the first year, standard pricing applies (currently, $60/year). Valid at select Service Experts locations, call for more details. Jun 3, 2026 - Jul 31, 2026 -
LimitedTimeOffer!$0 Diagnostic for Maintenance+ Members
$0 diagnostic for Maintenance+ members. Valid for new and active members. The $0 fee applies only when recommended repair is completed and paid at time of service.
Promotion valid for service visits occurring 3/16/26 – 8/31/26. Cannot be combined with other offers. No cash value. Offer may be modified, suspended, or withdrawn at any time as permitted by law. Mar 16, 2026 - Aug 31, 2026 -
LimitedTimeOffer!Save $90 on an HVAC Precision Tune-Up. Regularly $189, now only $99
A well-maintained system operates more efficiently, reducing energy consumption and lowering heating and cooling bills
Offer not valid on prior purchases and may not be combined with other offers. Excludes oil furnaces; call for pricing. **Potential savings may vary depending on age and condition of equipment, personal lifestyle, system settings, equipment maintenance, and installation of equipment and duct system. -
NEW HVAC SYSTEM as low as $155/month
NO money down; Brand new, high-efficiency equipment; installation, regular preventative maintenance, all repairs (parts & labor), and air filters INCLUDED.
Offer not valid on prior purchases and may not be combined with other offers. Advantage pricing applies to specific equipment. Call for details. Some exclusions apply. See the terms and conditions within the Service Experts Advantage Program Lease Agreement for additional information. -
$99 Drain Cleaning Special. Regularly $235, Now Only $99
Reduce buildup on your pipes, Help avoid major plumbing repairs, Maintain a clean home.
Offer not valid on prior purchases and may not be combined with other offers. *Valid for one drain only. Accessible ground level clean. Call for more details. -
10% Off Any Product or Service for Active Duty, Retired, and Veteran Military Personnel
It’s our way of thanking you for your courage, dedication, and sacrifice to protect our freedom. All work is performed by licensed experts and backed by our Service Experts Guarantee.
Offer not valid on prior purchases and may not be combined with other offers.