Thunder AC and Heating

HVAC Services in Duluth, GA

When your air conditioning fails during Georgia’s brutal summer heat, you need reliable hvac duluth ga service that actually shows up. Thunder AC and Heating has spent 25 years earning the trust of families and businesses throughout Gwinnett County by getting things fixed right the first time.

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Real Reviews From Your Community

Your neighbors throughout Gwinnett County have stories about why they keep Thunder AC on speed dial. From midnight emergency calls to brand new system installations, we’ve built our solid reputation by taking care of one customer at a time.

Your Community's Favorite HVAC Company

Keeping Gwinnett County Comfortable

Thunder AC and Heating exists because we got fed up watching our neighbors deal with contractors who made promises they couldn’t keep. For 25 years running, we’ve been the hvac duluth ga team that shows up on time, tells you the truth about what’s wrong, and gets your system working without the typical contractor games.

Your family’s comfort matters whether it’s your home’s AC dying in August or your business needing a full system replacement. We stock our trucks with quality parts, keep our technicians properly trained, and make sure real humans answer our phones – people who genuinely care about getting you back to comfortable. This isn’t just how we run our business; it’s how we can look our community in the eye.

To be the HVAC company Gwinnett County calls first because they know we’ll get it done right.

We fix what’s broken, install what’s needed, and treat every customer like they’re our next-door neighbor.

Residental & COmmerical HVAC Services

A busted HVAC system doesn’t discriminate between your bedroom and your boardroom – it just needs to get fixed, and we make that happen. Whether you’re a homeowner facing a heating emergency or a business owner who can’t afford system downtime, we bring the right experience and tools to solve your problem quickly.

Air Conditioning Installation

Air Conditioning Repair

Heating System Installation

Heating System Repair

HVAC Maintenance

Duct Cleaning & Sealing

Air Purifier

Humidifier/ Dehumidifier Installation

Smart Thermostat Installation

Energy Audits & Efficiency Upgrades

Emergency Services

Best HVAC Company Around

Why Thunder AC Beats the Competition Every Time

Other hvac duluth ga companies leave you sitting around all day with vague “sometime between 8 and 5” appointments, but we give you real time windows and actually keep them. While they’re trying to sell you expensive add-ons you don’t want, we focus on diagnosing your actual problem and fixing it fast – which is exactly why our customers stick with us instead of calling around.

Local Experts Only

Always There When You Need Us

Flexible Financing Options

5-Star Customer Ratings

Community Focused

See Our Work in Action

These photos show actual work we’ve completed for real customers right here in Gwinnett County – no stock images or staged shots. Every repair job, new installation, and system upgrade represents another family staying cool or another local business keeping their operations running smoothly.

What You Get Working With Us

You shouldn’t have to pick between skilled workmanship and fair pricing, or between quick response times and experienced hvac duluth ga technicians – Thunder AC delivers everything. We’ve invested 25 years building lasting relationships throughout Gwinnett County because treating our customers right isn’t just smart business, it’s the right thing to do.

Competitive Pricing

25 Years Of Experience

full system change out! get furnance half price, no diganostic fee with purchase (Valid till Sep 2025)

Proudly Serving All of Gwinnett County

Lawrenceville

Duluth

Norcross

Lilburn

Snellville

Suwanee

Buford

Sugar Hill

Dacula

Grayson

No matter where you are in Gwinnett County — or within a 30-mile radius — we’re close enough to get to you fast when your HVAC system decides to quit. Our local knowledge means we know the neighborhoods, we know the climate challenges, and we know how to keep you comfortable year-round.