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 Lilburn, GA
Dalton Heating & Air is the HVAC company Lilburn homeowners call when a system fails and the forecast looks rough. Most of our Lilburn work falls into three buckets: AC repair, heat pump installation, and furnace repair. Each has its own dedicated Lilburn page, linked below, because a repair call is not a replacement project. If you need a diagnosis today, call (361) 306-9515 and a live person answers, no queue, no callback window.
Why Lilburn Homes Are Different
Lilburn sits on the Piedmont plateau, which means two things for HVAC work: humidity climbs hard in summer, and the terrain rolls enough that drainage and crawlspace moisture feed into ductwork and condenser placement. A lot of Lilburn’s housing stock dates to the 1970s through 1990s, so we regularly see split-level ranches and two-story traditionals with original duct runs sized for systems that were never designed for today’s heat loads.
What that means in practice: a Lilburn AC repair is often not a single failed part. It is a failed capacitor or contactor on a unit that has been running at full tilt through July, on a home where the return duct is undersized and the filter has not been changed since the spring. We check the whole system, not just the part that quit. The homes off Five Forks Trickum, around Killian Hill Road, and in the Beaver Ruin corridor vary enough that we do not quote any job sight unseen. You get a written price before any work starts.
Our Main Lilburn Services
Two of these three services generate most of our Lilburn calls in any given week, and each has its own page with pricing and details. Here is the short version of each.
AC Repair in Lilburn
Lilburn summers push cooling systems hard from late April through early October. We see failed capacitors, low refrigerant, clogged evap coils, and contactors welded shut more than anything else. When we diagnose an AC issue, the repair price is written down and approved before we touch a part. Every repair is guaranteed in writing for a full year. If the same issue returns inside that year, the second visit is free, no argument. Read the full breakdown on our AC Repair in Lilburn page.

Heat Pump Installation in Lilburn
A heat pump in Lilburn makes sense for a lot of homes: one system that cools in summer and heats in the mild Georgia shoulder seasons. The catch is sizing. We run a load calculation on your specific house, not a rule of thumb based on square footage alone. Lots of Lilburn homes have shade from mature oaks on one side and full sun on the other, and that changes the number. Installation is priced in writing, with a set install date, not a vague window. Details are on our Heat Pump Installation in Lilburn page.

Furnace Repair in Lilburn
Lilburn winters are shorter than the ones up north, but January and February nights drop below freezing often enough to make a dead furnace a real problem. Most furnace repairs we handle are igniters, flame sensors, pressure switches, and control boards. We explain exactly what failed and what the repair involves, in plain terms, before we do anything. Parts for Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard are either on the truck or available same-day. See Furnace Repair in Lilburn for the full scope.

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 Lilburn
We deploy factory-trained technicians to repair and maintain nine major residential HVAC brands, including Rheem, York, and Daikin. Stocked van inventory covers common consumables and controls, so most Lilburn repairs complete on the first visit. See our brands for the full list and our parts sourcing.
Pricing for HVAC Company in Lilburn, GA
Every job, from a quick tune-up to a full replacement, is quoted in writing before any work begins. Here is what Lilburn homeowners can expect for the most common calls we handle.
| Service | Typical range in Lilburn |
|---|---|
| AC repair diagnostics and repair | $150 – $650 |
| Furnace repair diagnostics and repair | $150 – $700 |
| AC installation (full system) | $3,500 – $7,500 |
| Seasonal tune-up | $80 – $200 |
What pushes a repair to the upper end in Lilburn is usually parts availability on older units, or what we find once we open the cabinet. When a capacitor failed because the coil is clogged and the system has been overheating for six weeks, the fix is no longer just one part. That is why we put the price in writing before we start and explain what is included, so you know the full number before approving anything.
Neighborhoods We Serve in Lilburn
Our crews work throughout Lilburn, from the established subdivisions near City Hall to the newer streets pushing toward the Gwinnett County line. We serve the following communities and every street in between:
- Beaver Ruin
- Five Forks
- Killian Hill
- Luxomni
- Mountain Park
Most Lilburn calls get a same-day or next-day visit depending on call volume and the time of day. Emergency no-cool or no-heat calls are prioritized, and a live person answers the phone around the clock.
Service Area – Cities Near Lilburn
Dalton Heating & Air works across this part of Gwinnett County and beyond. In addition to Lilburn, we serve Snellville, GA, Lawrenceville, GA, Grayson, GA, and Buford, GA. Scheduling is coordinated from our Atlanta office, but every crew that arrives at your door is local to the Lilburn area.
Serving Lilburn, GA - Our Local Coverage Area
We’re based in the Lilburn 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 Lilburn
Most Lilburn emergency calls are reached same-day. A live person answers the phone 24/7, and we dispatch based on urgency. No-heat and no-cool calls in extreme weather get first priority. Call (361) 306-9515 and we will give you an honest ETA, not a guess.
Yes, in most cases. Gwinnett County requires a permit for HVAC equipment replacement, and the job must meet current code. We handle the permit paperwork as part of the installation scope, so you do not have to chase down the building department.
In most cases, yes. We are familiar with how Gwinnett County HOAs handle exterior unit placement, screening, and noise. We will review what your HOA requires and propose a location that complies. The written quote reflects any extra work that screening or rerouting demands, so there are no surprises at inspection.
If you need an HVAC company in Lilburn that puts the price in writing before starting, answer the phone with a real person, and stands behind the work for a full year, call Dalton Heating & Air at (361) 306-9515 today. Estimates are free, and Marco Benitez and the team will tell you straight what the job takes.
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 Lilburn Customers Say
"Coil cleaning and a refrigerant check before summer. AC has never been this cold."
- Marty D."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.







Before
After
Before
After
Before
After