Frequently Asked Questions

Heating and Air Questions and Answers Cumming, GA

Andy Lewis / Hobson Heating & Air is your local choice for answers to your heating and air questions. Trust our experienced team. Call for your appointment today.

Heating and Air Questions

What is the lifespan of a central AC unit?

The typical life of an AC system is 10-12 years. As an air conditioning system ages, they tend to lose efficiency which causes an increase in electric bills as well as a decrease in the comfort of your family home. At Andy Lewis Hobson Heating and Air, we know it can be frustrating when your AC system starts to near the end of its life. That is why we offer free system replacement estimates to help determine if your AC system is on its last leg.

Why is AC maintenance important?

AC maintenance is the key to a longer lifespan for your AC system. At Andy Lewis Hobson Heating and Air we recommend having maintenance performed on your AC system 2x per year. This ensures your stay comfortable in all seasons.

Do you need to service AC every year?

Your AC system needs regular service to operate efficiently. Semi-annual maintenance allows a licensed HVAC technician to keep an eye on your system so minor problems don’t turn into major ones over time. Servicing your AC on a regular schedule keeps it operating efficiently and also keeps your energy bills low.

What do I do if my AC isn’t blowing cold air?

Has your AC system stopped blowing cold air? If so you may have a blocked condenser coil. If you realize your AC system is not cooling we recommend turning your system off and calling a licensed air conditioning professional to diagnose the problem. Never try to diagnose or repair an AC issue on your own. Due to the electrical components of air conditioners, it can be dangerous.

What does SEER mean in HVAC?

SEER stands for seasonal energy efficiency rating which defines the efficiency of your HVAC system.

Cumming, GA Heating and Air Questions

Trust the local choice in Cumming, GA for answers to your heating and air questions, Andy Lewis Hobson Heating and Air. Call us to learn more about our heating and air repair, installation, and maintenance services today.

Learn more about our other services:

Bradford Paul

15:21 18 Mar 24

Mr. Richard Rushing from Andy Lewis/Hobson Heating & Air is a true professional. He was very knowledgeable and very informative. I would highly recommend Andy Lewis/Hobson Heating & Air!!

Lauren Barnes

18:46 24 Jan 24

Had a great service with Karl. Solved our issue and did general maintenance on our units. Knowledgeable and efficient!

Donna Jiga

16:24 24 Jan 24

Karl Schwab was the best yet. It really helps when someone really knows his product. Thank you Karl for all you did.

Melvin George

00:26 20 Jan 24

We had the HVAC unit to put kids room fail the coldest night this month. Called Andy Lewis/Hobson and they sent Karl out the next day. Karl did an amazing job going through our entire system to try and find the issue. He did repairs just to make sure all our units were in perfect shape. Super happy with this team.

Meredith Lancaster

01:05 18 Jan 24

I am over the top impressed with Andy Lewis Heating and Air! I purchased my first home in October. It has been a rollercoaster (not because of our HVAC, but otherwise), and ALH has been the company I know I can rely on. The contractor who built our home had the furnace installed by Andy Lewis Heating and Air and we found out that we needed some work done on it after it started displaying error codes. Every time I've called, Pat has be incredibly kind, pleasant, and always taken my calls with a sense of urgency to get the problems fixed. Matt has been my go-to technician and I could not be happier. He has always been pleasant, kind, understanding and taken care of any issue I've had quickly and thoroughly! If you need to get an HVAC, furnace or anything installed that ALH provides, don't think twice. They are top notch and stand by their work. If any services are needed after install, they are speedy at getting you back in working order! Seriously, thank you for being a reliable company with terrific service!

Matthew Vandegriff

14:44 11 Jan 24

Karl was great. So careful and thorough. He communicated so clearly and patiently.

Alex Horton

20:22 10 Jan 24

Karl Swab was great, very informative, called prior to arriving, and was very professional. Thanks Karl!

Megan den Exter

14:49 02 Jan 24

The Carls were great! Very thorough and explained everything so so well. We are very pleased.

RajManohar Mahakala

02:53 23 Dec 23

I have been using Andy Lewis for the past 15 years for all heating/cooling maintenance in my home. The service provided has been timely and exceptional.

Jonathan Malto

16:30 22 Dec 23

Karl came out to inspect my ac and went above and beyond to take his time to help me diagnosis a heating issue in multiple rooms. Not only did he help resolve the issue, he patched up some work done incorrectly by prior techs. Given it is a couple days before Christmas, the price I paid for the work I received was absolutely fantastic. Can't recommend Karl and Andy's group enough.

Adam Howe

15:14 20 Dec 23

Karl Swab was very knowledgeable and was extremely helpful.

Teresa Hayes

20:53 12 Dec 23

Karl Swab did a great job!!!!

Ryan Dollar

17:17 12 Dec 23

Karl Swab was timely, professionally, and efficient. Great service!

Alex Talbott

16:22 11 Dec 23

Victor was my technician; I really appreciate the best practice advise that he gave as well as his timely professionalism for the Maintenace that he provided. Thank you for preventing potential issues at my home!

Carol Elliott

17:34 05 Dec 23

On time and thorough!!

Jim Brady

15:30 05 Dec 23

Karl was very thorough and professional.

Laurie Brown

17:21 04 Dec 23

Karl Swab services my furnace today and did a great job!

Alex Lovejoy

17:30 01 Dec 23

Very thorough service and professional communication. Karl Swab did a great job.

Mohammad Islam

20:09 30 Nov 23

Karl Swab is an awesome technician who did maintenance on my two unit HVAC. I’ve been with Andy Lewis for over three years now and he is hands down the best technician they have sent over. He is knowledgeable as well as super courteous. I would highly recommend Karl and Andy Lewis for your HVAC needs.

Brad Miehl

21:37 29 Nov 23

Karl Swab did an awesome job 🤓

Andrew Dunn

19:00 28 Nov 23

Karl Swab was great! Called ahead and was kind and dilligent.

Kevin Henderson

20:04 22 Nov 23

Karl was awesome! Thanks!

Tim Fleming

17:46 22 Nov 23

Karl Swab did an excellent job! Very thoughtful and thorough and his attention to detail is excellent.

Ira Isaacson

20:13 20 Nov 23

Karl swab did great job

Taylor Sullivan

18:56 17 Nov 23

Karl Swab came out to service our HVAC and was professional and great customer service. We appreciate you!

Audrey Boyce Brown

16:54 17 Nov 23

Karl Swab was my maintenance tech today and he did a great job. Provided explanations of everything he did.

Ryan Aly

14:57 17 Nov 23

Karl Swab did an excellent job working on our units! He was prompt, friendly and professional.

Tony Olear

22:09 15 Nov 23

Karl was very courteous, focused on this task, polite, and knowledgeable.Thanks

D F

14:36 15 Nov 23

Carl swab performed excellent service today!

Michael Travers

20:08 09 Nov 23

Pedro was great!

Aloisio dos Santos

14:49 09 Nov 23

Fantastic service. Karl Swab is simply a great technician. Explained every details around the inspection, the adjustments he made, and gave tips to keep the units in good stand. I really loved his service. I highly recommend Andy Lewis/Hobson Heating company, and ask for Karl Swab.

Jason Moody

17:29 06 Nov 23

Great job, saved me again

Mike Herrington

16:26 06 Nov 23

Janet Ball

16:18 06 Nov 23

Kathleen Shults

21:01 04 Nov 23

Karl Swab was great and so was the service, as always.

Wes McLean

16:16 04 Nov 23

Karl SwabVery professional and got the job done efficiently.

Richard Gutermuth

23:42 03 Nov 23

Just want to express how pleased we were with the service provided by ALH. They did both our Spring and Fall tune-up and then did some ductwork repair they found during the Fall service. Carl was our technician, and we were very pleased with the work he did and how thorough he was in doing his job. We will continue to use ALH for all of our heating and a/c needs.

Sam K

13:06 03 Nov 23

They came out within a day and fixed my heating problem within 30 mins! It was an electrical wiring issue in the board and Connery was so efficient and knowledgeable!

Nigel Roe

19:24 02 Nov 23

Doug Siegel

18:42 02 Nov 23

I called earlier this morning. They were here at noon! Resolved my issue!

Garry Cooke

13:23 02 Nov 23

The service tech was on time, very professional and knowledgeable.

Lucy Lamparter

13:06 01 Nov 23

Richard is always very timely, professional and thorough! I know my heating and air conditioning systems are well maintained!

Terry Pressman

23:24 31 Oct 23

Donny Zhao

14:03 31 Oct 23

Patrick Estes

13:39 31 Oct 23

Our technician was knowledgeable and professional. Forrest scoped what he intended to accomplish and time required. After completion he explained what he had done plus in and above to ensure better efficiency.Bring on the cold weather!!

Susan Gaynor

02:20 29 Oct 23

My forest Hixson was very professional, friendly, and knowledgeable. We were very pleased by his expertise.

Lawrence W Keith III

20:35 27 Oct 23

Irene 63

19:45 27 Oct 23

Feels great to ensure my furnaces are ready for another cold winter! Thanks Andy Lewis/Hobson Heating.

Jeff Aughey

17:29 23 Oct 23

Karl Shaw did a great job. Very professional and thorough with his work

Brian Kim

19:40 19 Oct 23

Karl Swab my technician has always been the most professional, communicative, and kind human being ever whenever he has been helping me with issues or maintenance I have needed.Can't recommend him and Andy Lewis/Hobson enough!!

DONALD HRYNYSHYN

17:01 17 Oct 23

Completely satisfied. Very professional technician.Pedro was performed a detailed diagnostic and provided good info and advice.Above the best.

Stephen Jackson

14:39 12 Oct 23

I have had Andy Lewis/Hobson Heating & Air service my home several times now. EVERY single time it was a very personable experience. In a world where everyone is trying to get ahead, this company most definitely puts the customer first. The technicians are professional and friendly, always making a point to interact with my young children and make the family feel secure and ensured that the work will be done in a timely manner. The font office staff are genuinely interested in you as the customer and know you by name. Most recently I had an emergency and Andy Lewis/Hobson was at my home within 30 minutes and stayed on the phone with me the entire time offering a comforting conversation ensuring me everything would be fine soon. I even received a call back after a few days just to check in on how I'm doing - nothing about service or products, just a check in on me and my family. If you're looking for experienced technicians that provide prompt and professional service at a fair price, then look no further. If you're like me and value trust and relationships, then most definitely look no further. I highly recommend Andy Lewis/Hobson Heating & Air to everyone, every time.

Amanda Foster

21:03 10 Oct 23

Excellent service! So happy to have our heat working again.

Garrett Schneider

16:45 29 Sep 23

J L

18:03 26 Sep 23

Great service and support from Karl Swab.

LaShonda Williams

18:29 20 Sep 23

Richard was my Service Technician and he did an EXCELLENT job of quickly identifying the problem and explaining the issue in practical terms to make sure I understood. This man was highly skilled, professional, and courteous which made my experience relatively painless. Without hesitation I would recommend this company especially if the other technicians are anywhere near as skilled as Richard!

Jim Smithson

15:15 14 Sep 23

Professional and Shab did a great job. Very through than what I’ve experienced with other vendors.

Thomas Gambeski

19:18 12 Sep 23

Good experience

Richard Haynes

15:23 12 Sep 23

Karl Swab did a great job and was very thorough.

A P

20:43 11 Sep 23

Mark On The Road

20:28 11 Sep 23

Solid company, highly recommend.My HVAC unit had a leak, and the AC went out in the house. Karl was dispatched on the same day that I called, and totally saved the day. He was very professional, knowledgeable, and friendly. He fixed the leak, topped off the unit with some freon, and now I'm good to go. Thank you very much, Karl.

Kenneth Bridges

19:37 11 Sep 23

The issue was fixed quickly and the technician provided me with information regarding what caused it and how it would be rectified. He was very patience, explained everything in detail, and was professional and courteous.

Craig Snyder

19:26 11 Sep 23

Prompt! Technician did a great job with a fair price.

Kristopher Gerardi

18:40 11 Sep 23

Carl was fantastic. Diagnosed and fixed my A/C issue very quickly!

Nicky Dunagan

18:23 11 Sep 23

Keith and Seth did a fantastic job and I would recommend them to anybody

Phyllis Duvall

23:08 08 Sep 23

Our Technician, Karl, was professional and courteous. He was here when he said he would be. I recommend Andy Lewis and our technician. We have been customers for almost 7 years. Pat and Jackie in the office are great to work with as well as Rob.

Linda Morris

02:51 01 Sep 23

Matthew from Andy Lewis was excellent! Professional and very knowledgeable for a air conditioning tech!

Richard Dew

21:15 31 Aug 23

Suzanne Wahl

20:44 31 Aug 23

Erin Lynn Wade

17:03 31 Aug 23

Andy Lewis installed the HVAC systems for our new build home and we continue to use them because their technicians are very skilled/helpful and are good people you can trust. Pedro is excellent and so nice! The customer service team is also very helpful and responsive. Lastly and mostly importantly, they are very reasonably priced compared to the other larger companies in the Atlanta area. I recommended them highly!

Ian Street

14:23 25 Aug 23

Great company. Highly recommend them.

Phillis Welden

13:22 25 Aug 23

Ruby Wall

00:37 25 Aug 23

I have been a customer of Andy Lewis/Hobson for 20+ years and will continue to do so.

Jesse Kapp

19:35 16 Aug 23

I would not recommend this company, I was up sold the entire time. They send 2 “technicians” but the second technician said he wasn’t a salesman but then proceeded to give me an entire sales pitch about replacing my unit. Even after I said I no longer wanted the system I received multiple calls with lower and lower prices that were still high and was told how other companies just aren’t as good and that’s why they cost more but I should still choose them. I didn’t feel like they really cared about helping me but just more concerned with the sales and money for themselves

Jagruti Patel

20:43 05 Aug 23

Good staff.

Mark Petralia

15:13 29 Jul 23

Always excellent service from Andy Lewis. Aaron came out to do my A/C maintenance check. He was a big help moving things back and forth that were blocking access to units. You can’t count on other services to lend a hand like that.

Christopher Lawrence

20:07 21 Jul 23

I contacted ALH when one of our 14 year old A/C units stopped working. We were on a tight timeframe and needed the system replaced as soon as possible. Greg handled all of the details and he and his crew were professional and courteous throughout the entire process. I'm happy to say that our new heat pump and air conditioner were installed quickly and I will definitely contact them the next time we need service.

Rosalie L

00:26 06 Jul 23

Robbie went above and beyond to help us replace our HVAC in an old condo building. He worked late into the night trying to help us find a manufacturer who could supply the unit we needed and kept me consistently in the loop. He even hand drew a detailed diagram to help me understand what the situation is with our HVAC so I could communicate with the HOA. While we ultimately were able to find a specialized company who could source the replacement unit quicker, I was so impressed with Robbie’s service and wouldn’t hesitate to reach out to ALH in the future.

Bruce Lighter

14:17 17 Jun 23

Austin Payne replaced part of existing system and did an excellent job. He is prompt, professional and knowledgeable.

Sonya McKinzie

11:54 18 Apr 23

Where do I begin? AMAZING...Patty answered my call when I was seeking a second opinion about a blower motor replacement for my furnace. She was kind, relatable, and very empathetic. She provided me with a recommendation to have Robert, sales and customer service representative to come and look at my unit. As I had spent close to $1000 on replacement of a part on my AC after 20 days of being in my home. To replace the blower I was looking at another $1000.The previous HVAC company provided poor service as shared in one of my other reviews.Long story short, I replaced the furnace reluctantly and in tears, but if I had not been equipped with the info needed, I might have wasted money on a system repair month over month. I lucked up and obtained great financing through Bank of America.Robert and Patty were responsive and reactive. After 2 weeks without heat and air, Allen and Victor came out and replaced my firnace. They were informative, caring and kind. Thank God for an amazing company such as this. Thank you for all of your care and concern. I would refer them again and again for your HVAC repairs.

Christy Montes

17:56 16 Mar 23

They are very reliable and through

bobby vandergrift

16:57 14 Mar 23

Someone recommended this company to me, I'm so HAPPY they did. I was not disappointed. I reached out to him and he gave me a time and day in which he would be at my place of business. He was spot on!! He did such a wonderful job, anytime something goes wrong he will be called first. PRICES WAS VERY REASONABLE. He didn't try to rip me off. Not to mention he has done like 3 repairs for me. I HIGHLY RECOMMEND THIS COMPANY!!!

Lisa Sullivan

17:57 11 Mar 23

The technician was professional, courteous and knowledgeable.

Rikki Ward

00:28 10 Mar 23

Francisco de la Cruz

00:11 10 Mar 23

Joseph Subits

22:42 09 Mar 23

Our heat went out overnight and we were unable to reset the system. We called Hobson Heating & Air at 8:00am and they were at the house by Noon. The technician was friendly, courteous and he explained every step of the disgnostic process and repair. He also performed the first inspection and tune up service for both heating & air. Because we enrolled in the yearly maintenance program, the diagnostic and repair was free. We are very satisfied.

bobby johnson

18:26 07 Mar 23

I called Andy Lewis-Hobson because my AC was running however no cold air was coming out. Once our Service Technician, Aaron Hill arrived, I knew we were in great hands. Aaron made contact with us to discuss the AC issue. During this time, Aaron was engaged in our communication, extremely professional, and very polite. While Aaron worked on our HVAC System he would periodically let us know what the issue was and his approach to fixing the problem. Once the repairs had been completed Aaron explained everything he did and shared importance of having a service agreement on our HVAC System since my warranty would be ending in May 2023. I was so impressed with Aaron. He is truly the best Service Technician I have ever had at any of my properties. If anyone needs HVAC Service, Andy Lewis/Hobson is the only answer. Hopefully you will get to meet Aaron.

Angie LaMattina

17:54 07 Mar 23

Worst service I have ever received. Recommended by a friend and bought a service contract. The company was not as he said they would be. OVER sold on everything and paid hefty. When things were not cooling as promised, they said it was me, not programming the system correctly. The technician came out and had to call in as he did not even know how to fix the problem with the Ecobee system they installed. Then he wanted me to call Ecobee myself. I had it taken the next day. I realized what a sham it was. On a Friday maintenance visit, the technician did not connect the AC units back on. Whole weekend with home in the high 70's before they came back on Monday. I have never posted a negative review on any business before today. So very disappointed with this company. Hoping to save someone else from this happening to them.

Christina Spinks

22:05 28 Feb 23

Best service you could ask for!!

Lisa Cedrone

20:45 21 Feb 23

They were on time as efficient

Herb Bright

04:08 21 Feb 23

Richard was our service technician and did an excellent job. I’ve used ALH for over 4 yrs and look forward to their continued excellent service.

21:38 20 Feb 23

21:03 20 Feb 23

20:49 20 Feb 23

20:17 17 Feb 23

18:46 16 Feb 23

Aaron was great to work with. Very professional.

Rick Clark

17:54 12 Feb 23

Karl R

17:51 10 Feb 23

Serviceman was prompt, professional and courteous. He explained what was completed, was careful in the home and very efficient. We were very impressed with his level of service. He exceeded our expectations.

Youngtak Lee

17:01 09 Feb 23

Golfer Singh

15:13 09 Feb 23

Excellent customer service I use them once a year also upgraded my system to Halo air cleaner fantastic service very thorough