Roswell, GA
30+ Years
NATE-Certified

NATE-Certified
HVAC Experts
Serving Roswell for 30+ Years.

Same-day emergency service across North Atlanta. We fix what's broken. And we tell you when you don't need a new system.

4.9โ˜…
61 Google reviews
30+
Years in Roswell
100%
NATE-Certified technicians
Same Day
Emergency response
4.9โ˜…
Google rating ยท 61 verified reviews
30+
Years serving Roswell & North Atlanta
100%
NATE-Certified technicians

Complete HVAC solutions
for your home.

From emergency repairs to full system installations. Every technician is NATE-certified. Free estimates on new systems.

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Emergency HVAC Repair

Same-day service when your system goes down, even on the coldest or hottest days.

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AC Installation & Replacement

Energy-efficient cooling systems sized and installed correctly for your home.

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Furnace Repair & Service

Fast diagnosis and repair to get your heat back on. Parts stocked for common issues.

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Mini-Split Installation

Ductless heating and cooling for individual rooms: basements, sunrooms, master bedrooms.

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Preventive Maintenance

Seasonal tune-ups that catch problems before they become expensive emergencies.

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System Diagnostics

Honest assessments. If you don't need a new system, we'll tell you. We'll save you thousands.

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Indoor Air Quality

Filtration, humidity control, RGF Guardian Air Purifiers, Honeywell media filters.

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Ductwork Services

Re-design, sealing, repair, and replacement. Proper airflow makes every system perform better.

The HVAC company
that tells you the truth.

"Bob's is our new go-to โ€” such an amazing experience. The first couple of companies told us we needed an entirely new system. Bob's came out and said no โ€” it was a simple fix. Saved us thousands."
โ€” Mackenzie Welsh, Roswell, GA ยท Google Review
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We won't upsell you a new system

We make money fixing problems, not inventing them. If a repair will do the job, we'll tell you.

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Same-day emergency response

When your heat fails on the coldest weekend of the year, we show up. Every technician is NATE-certified.

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You call and get Bob directly

Call or text 8amโ€“9pm and speak with Bob himself. Not a call center. Not dispatch. Bob.

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Factory-level expertise

Bob Roy is a former factory trainer for major HVAC manufacturers, with 10,000+ hours of NATE training.

30 years. NATE-Certified.
Still answering the phone.

Bob Roy, founder of Bob's Heating & Air
Bob Roy
Founder ยท Former factory trainer for major HVAC manufacturers ยท 10,000+ hours NATE training ยท East Cobb resident

Bob Roy isn't a typical HVAC contractor. Before founding Bob's Heating & Air, he spent years as a Sales and Technical Trainer for prominent HVAC equipment manufacturers. He trained the people other companies hire. He works directly with factory engineering to solve problems most technicians have never seen.

The story we're most proud of: a customer called us after two other companies told her she needed a brand-new system. Bob came out, diagnosed the problem in 30 minutes, made a simple repair, and saved her thousands. She's been a customer ever since. That's how we build this business: one honest service call at a time.

4.9
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61 verified Google reviews
Roswell & North Atlanta's most trusted HVAC
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Hala Shell
Roswell, GA
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"Bob's is the best! Called them this morning and Josh arrived the same day and within 30 minutes had our heat back up and running. If you need HVAC help โ€” call them and ask for Josh McKnight."

Google Review
M
Mike Roberson
North Atlanta
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"Furnace quit working Saturday night โ€” wind chills in the negative. My normal tech couldn't make it. Bob's was there within a few hours. Saved the day!"

Google Review
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Mackenzie Welsh
Roswell, GA
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"Two companies told us we needed an entirely new system. Bob's came out and said no โ€” simple fix. Saved us thousands. Bob's is our new go-to."

Google Review
More from our customers
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"Josh arrived the same day and within 30 minutes had our heat back up and running. So knowledgeable and efficient!"

Hala Shell ยท Roswell
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"Furnace quit on the coldest night of the year. Bob's was there within a few hours. Saved the day!"

Mike Roberson ยท North Atlanta
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"Using Bob's exclusively for 5 years. Mini-split installed perfectly. Jake and his crews worked efficiently and professionally."

Mike Dorman ยท North Atlanta
โ˜…โ˜…โ˜…โ˜…โ˜…

"Two companies said we needed a new system. Bob's said no โ€” simple fix. Saved us thousands. Our new go-to."

Mackenzie Welsh ยท Roswell
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"Replaced my three large systems. Jake and his crews did a fantastic job โ€” fast, clean, professional."

Paul Ettari ยท North Atlanta
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"Josh arrived the same day and within 30 minutes had our heat back up and running. So knowledgeable and efficient!"

Hala Shell ยท Roswell
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"Furnace quit on the coldest night of the year. Bob's was there within a few hours. Saved the day!"

Mike Roberson ยท North Atlanta
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"Using Bob's exclusively for 5 years. Mini-split installed perfectly. Jake and his crews worked efficiently and professionally."

Mike Dorman ยท North Atlanta
โ˜…โ˜…โ˜…โ˜…โ˜…

"Two companies said we needed a new system. Bob's said no โ€” simple fix. Saved us thousands. Our new go-to."

Mackenzie Welsh ยท Roswell
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"Replaced my three large systems. Jake and his crews did a fantastic job โ€” fast, clean, professional."

Paul Ettari ยท North Atlanta

Heat or AC out?
We respond same day.

Most HVAC emergencies happen at the worst possible time. We run emergency service because you can't wait three days for someone to show up.

โœ“ NATE-certified technicians respond within hours
โœ“ Parts stocked for common repairs. One visit, done.
โœ“ Honest diagnosis. If it's a simple fix, we'll tell you.
Call for Emergency Service โ†’
24/7
Emergency HVAC Service
Call or text: (404) 606-0548
Available 8amโ€“9pm ยท Speak directly with Bob
Free estimates on new systems

Roswell and all of
North Atlanta.

We serve the communities we live in. Bob has been an East Cobb resident for decades. This isn't just where we work, it's home.

Roswell
Alpharetta
Milton
Johns Creek
Sandy Springs
Dunwoody
Marietta
East Cobb
Mountain Park
North Fulton County
Cobb County
โœ“ Licensed & Insured
โœ“ 100% NATE-Certified
โœ“ Free system estimates
โœ“ 30+ years in business

Straight answers.

What is NATE certification and why does it matter? +
NATE (North American Technician Excellence) is the HVAC industry's leading certification for technical competence. Every Bob's technician is NATE-certified, meaning they've proven their expertise against the toughest standards in the industry. Most HVAC companies can't say that.
Do you offer emergency service? +
Yes. We respond same-day to heating and cooling emergencies. Call or text (404) 606-0548 and speak directly with Bob. Hours: 8am to 9pm. When other companies tell you they'll schedule you in three days, we're the ones who show up.
How often should I service my HVAC system? +
We recommend annual preventive maintenance: before heating season and again before cooling season. Regular service catches small problems before they become expensive emergencies and keeps your system running at full efficiency.
What are the most important things for a new HVAC system? +
Variable speed furnace, large media air filter, and duct/plenum upgrades. These are all related to airflow. Most houses have undersized ducts. We fix those. In many cases this makes a 14 SEER unit work better than an improperly installed 18 SEER unit. Most other companies skip this step.
When should I repair vs. replace my system? +
If your system is under 10 years old and the repair cost is reasonable, we'll usually recommend fixing it. We won't push replacement when a repair will get you another few years. We'll walk you through the math and let you decide. We're not in the business of upselling.

Ready to work with Roswell's
most trusted HVAC team?

Call or text (404) 606-0548. Speak directly with Bob. Same-day service available across all of North Atlanta.

Call (404) 606-0548 โ†’
Or fill out our contact form