Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
HVAC Company in Lawrenceville, GA
Dalton Heating & Air handles heating and cooling work across Lawrenceville with written pricing, a one-year repair guarantee, and crews that show up inside the stated window. Lawrenceville’s mix of 1980s and 1990s subdivisions, older intown homes near the square, and newer construction off Sugarloaf Parkway means no two calls are alike. Add Georgia summer humidity and February temperature swings, and you get systems that age in specific, predictable ways. Call (361) 306-9515 when a system quits, starts making noise, or stops keeping set temperature.
Why Lawrenceville Homes Are Different
The biggest factor in Lawrenceville is age spread. Homes built along Five Forks Trickum Road and around the historic courthouse square often run original ductwork that was sized for less insulation than most attics have now. Homes in newer sections near Collins Hill and the Sugarloaf corridor tend to have tighter building envelopes, which changes how we size heat pumps and how often systems short-cycle in mild weather.
Humidity is the second factor. Lawrenceville sits at a low elevation with heavy tree cover in older neighborhoods, so indoor coils and drain pans work harder in summer than the same equipment does across the river in drier counties. We regularly find condensate lines backing up in August in homes around Lawrenceville Highway simply because the system never gets a break. Furnaces get their own stress in winter; houses built before 1995 in Lawrenceville often have 80 percent efficiency units working against under-insulated crawl spaces.
Gwinnett County permits apply to equipment change-outs, and several Lawrenceville HOAs require units to be screened from street view. We handle the paperwork as part of installation, but it changes scheduling. If your neighborhood has an architectural review committee, plan for a couple of extra days before the new system goes in.
Our Main Lawrenceville Services
Most calls in Lawrenceville come down to two things: an air conditioner that stopped cooling in July, or a furnace that will not fire in January. Each service has its own Lawrenceville page with pricing and same-day detail.
AC Repair in Lawrenceville
Most Lawrenceville AC failures we see between June and September are either a failed capacitor, a clogged drain line, or low refrigerant from a slow leak in the evaporator coil. Systems in homes along Grayson Highway and Webb Gin House Road tend to run longer hours because of west-facing exposure and high tree humidity, which accelerates wear on contactors and fans. We arrive with common parts on the truck, diagnose on the spot, and put the repair price in writing before a single screw comes out. The full breakdown, including cost ranges and what we stock, is on AC Repair in Lawrenceville.

Heat Pump Installation in Lawrenceville
Lawrenceville sits in a climate band where heat pumps make real sense for a lot of houses: winters rarely stay below freezing for long, and summers demand efficient cooling. Newer construction off Sugarloaf Parkway often has dual-zone systems from the start, but older homes near the square may be converting from a straight AC plus gas furnace setup. Sizing matters here; Gwinnett’s humidity means an oversized heat pump will cool the air fast and leave the house clammy. The process, the load calculation, and the full installed price are on Heat Pump Installation in Lawrenceville.

Furnace Repair in Lawrenceville
Cold snaps in Lawrenceville come fast and usually at night, which is when we get the most no-heat calls from subdivisions along Cruse Road and around Tribble Mill Park. Common culprits are flame sensors that will not prove the burner, failing igniters, and blower motors caked with dust from homes with pets or recent drywall work. A furnace that trips its limit switch is not something to keep resetting. We show up with the repair guarantee in writing and the parts to fix most units the same day. Details, including what each common repair costs in Lawrenceville, are on Furnace Repair in Lawrenceville.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Lawrenceville
Our technicians are factory-trained on Trane, Lennox, Goodman, and Rheem, among others, and we service all nine major residential brands. We stock common parts for these systems locally, which keeps most Lawrenceville repairs to a single visit. See the full list on our brands page.
Pricing for HVAC Company in Lawrenceville, GA
| Service | Typical range in Lawrenceville |
|---|---|
| AC repair (minor electrical or capacitor) | $150 – $300 |
| AC repair (blower motor, contactor, or circuit board) | $300 – $650 |
| Furnace repair (flame sensor, igniter, or thermostat) | $150 – $350 |
| Furnace repair (gas valve, blower motor, or control board) | $350 – $700 |
| AC installation (full system replacement) | $3,500 – $7,500 |
| Tune-up (cooling or heating seasonal check) | $80 – $200 |
What pushes a Lawrenceville repair toward the top of the range is usually access: attic units in older homes near the square get hot fast, and crawl-space furnaces in the county’s clay-heavy soil mean an hour of work before we even touch the system. Every price is written before work starts. That is a Garrison Standard rule, not an upgrade.
Neighborhoods We Serve in Lawrenceville
We run calls all over Lawrenceville, from the older grid streets near the courthouse to the master-planned communities off Highway 124. Response time across the area is typically same-day for emergencies, with most preventive work scheduled within the week.
- Five Forks
- Sugarloaf corridor
- Collins Hill
- Webb Gin House Road area
- Downtown Lawrenceville square
Service Area – Cities Near Lawrenceville
Dalton Heating & Air covers Lawrenceville and the surrounding Gwinnett area. Dispatch and scheduling are coordinated from our Atlanta office; crews serve Lawrenceville locally. If you are just outside Lawrenceville, we also work in Buford, GA, Norcross, GA, Lilburn, GA, and Duluth, WA.
Serving Lawrenceville, GA - Our Local Coverage Area
We’re based in the Lawrenceville area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs About HVAC Company in Lawrenceville
Same day in most cases. Emergency no-heat and no-cooling calls in Lawrenceville are triaged at the top of the queue, and crews typically reach most neighborhoods within a few hours. Call (361) 306-9515 and a live person answers, not a voicemail tree.
Equipment change-outs in Lawrenceville require a Gwinnett County mechanical permit. We pull the permit as part of the installation and schedule inspection with the county. Repairs do not require a permit. HOA approval, where it applies, is a separate step we help coordinate.
All of them. We work north of Highway 316, south along Lawrenceville Highway, east toward Webb Gin, and west toward Collins Hill. If a home is inside Lawrenceville city limits or its immediate unincorporated edge, we cover it.
Call (361) 306-9515 for a free estimate or to get a technician to your Lawrenceville home today.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Lawrenceville Customers Say
"Good communication, tidy, and disciplined work. Taped off the floor and wiped the unit down."
- Karen J."Installed a heat pump to replace an old oil furnace. Three clear quotes and the install crew was tidy."
- Cheryl B."Tech arrived in uniform right on time. AC wasn't cooling, found a failed capacitor, and replaced it in twenty minutes. The owner is a veteran and the company runs like it."
- Frank O.







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