I have been with the plumbing maintenance side of Cottrell for over a decade. I recently switched…read morefrom one of the big names in the Midlands for HVAC to Cottrell, and Colten was professional prompt, punctual, and respectful of my time. Lauren was great in the office and the they offer a military/veteran discount for fairly priced work. You would be doing yourself a disservice if you didn't at least get a HVAC or plumbing quote from them when repairs, replacement, or maintenance is needed.

Had a small sewer drain block. They came out and fixed but did not replace my backflow valve…read moreclaiming they don't do that anymore. Found out it is code to have one so I had to get another plumber to install a new one. They never answered my inquiry into this. Would not use them again or recommend them. In fact I just replaced my HVAC unit and if they had done right with the plumbing issue I would have got it from them.

Anthony came out and put in a Goodman AC and Heating unit at an affordable price within 1 day. They…read moregave me a 5 year warranty and I'm very happy with the service. His Son Marquel came and installed a nice new wifi thermostat, and followed up and made sure everything was working good. They are honest and good people and family oriented which is hard to find these days. I recommend them, Thank you

From the owner: At Smith & Sons we specialize in heating and air conditioning. We have 20 years of experience in…read morethe business. We offer maintain and service and replacement of systems. Call us for more details. 803-754-3366.

Upcoming Father's Day weekend and AC broke on us. We took a chance and called Killman. They were so…read moreresponsive and where others said they couldn't fix the unit until 5 days later, Killman was out the next day installing the new unit. The owner came by and met us and was so genuine and friendly. Just good people. We had a slight issue afterward with a blocked drain. Called them and they came out the next day (on a Saturday morning no less) and fixed the issue. Would highly recommend this company.

If you find yourself needing HVAC service or replacement in Lexington County, SC I cannot recommend…read morea better company than KIllman Heating & Air. They did not try to oversell me like some of the other HVAC companies and their recommendations were exactly what I needed. Recently we had some issues with the ductwork/damper and they came out the next day to inspect it and make sure the new HVAC unit was running correctly. Next day service is rare for such a minor issue. Killman Heating & Air is a class act.

From the time the Tech recognized the problem until the new system was installed, the team from…read moreCassell had been nothing but professional, accurate and considerate. We are very pleased with the service, price, value for the work and response of Cassell Brothers. This was our second unit total replacement, the last being in 2020. Reading recent reviews one could be scared away. That is not our opinion. Justin identified the inoperable problem in our 40-year old unit, got us in immediate contact with Doug (who came out on a Saturday). The replacement team of Dave, Carl, Donnie, Walter and Favian removed the old system (including ductwork) and installed the new system in less than 6 hours (in an attic over 95 degrees). They cleaned everything, went through the operations steps with us, and followed up two days later to complete one task. I would have given them a five-star but for one item still not resolved with our Trane unit from 2020--requires another Trane specialist. We would use them again and will carry the Comfort Club program for the forseeable future. Thanks Cassell for getting us back in comfort before the heat really builds!!

EXTREMELY DISAPPOINTED-BEWARE OF PRICING PRACTICES!…read more On 5/22/26, I had a technician from Cassell Bros come to my home to inspect my breaker box. Initially, I was told that five breakers needed to be replaced. The technician stated he had to leave to purchase them because they were "too expensive" to keep stocked in the van. At that point, I was quoted $2995.00 for the work. After returning and beginning the repair, the technician discovered an additional breaker that needed replacement. Interestingly, this breaker was available in the van. The total was increased to $3594.00. When I asked about the cost of the breakers, the technician showed me what appeared to be a pricing image indicating the breakers cost $599.00 each. Trusting the information provided, I approved the work and paid the invoice. The entire visit lasted roughly 30 minutes. Later that day, I noticed the breaker packaging left behind in my recycling bin. Out of curiosity, I researched the exact breaker models and found them listed at Home Depot for approximately $75 each. To verify, I personally went to Home Depot with the packaging information and confirmed the breakers were indeed priced at $75.31 a piece (I have pictures as proof). Concerned about the significant markup, I contacted the company seeking an explanation. Initially, I was told no manager was available and that someone would return my call, but I did not receive a call back. After calling again, I eventually spoke with someone named Broderick. During the conversation, I was told the company is " a business trying to make money." I was offered a 20% discount, which I did not feel adequately addressed the issue. I was also told the only other alternative, and I quote was, "I CAN COME BACK TO YOUR HOUSE AND PUT THE OLD BREAKERS BACK IN." Another concern is that the invoice provided was not itemized, making it impossible to see the breakdown of parts and labor charges. What reputable company doesn't give you that information? One that is not practicing ethical business. I understand businesses need to make a profit, but this experience left me feeling misled and taken advantage of. If it hadn't of been for their "smart" technician leaving the packaging in my trash, I would have never questioned this service. I encourage anyone considering this company to ask detailed questions, request itemized pricing upfront, and compare cost before authorizing repairs.

Mr. Richard services was over and above my expectations. The quality of service and professionalism…read morewas excellent. I would recommend R&G heating and cooling to all home owners.

From the owner: The Best You Can Get in Columbia: We ofter 100% Satisfaction Guarantee*…read moreSafety-conscious HVAC and refrigeration technician who effectively manages a large volume of, work orders for both residential and commercial properties. Focused delivering quality work, and exceptional customer service. Strong work ethic and flexible schedule. Willing to relocate: anywhere authorized to work at the US for any employer. diploma and certificate HVAC

I have had some issues with some heating and air conditioning service companies in the past and…read moredecided to give this company a try. Well after the challenges with getting honest and reliable work done from other places, Southern Comfort Appliance has restored my faith in getting my hvac repaired. They are very knowledgeable and focus on great customer service and quality service. Thanks Josh! You have just acquired a happy and loyal customer!

From the owner: Providing Heating and Air Services to the greater Columbia area. Where our quality means your…read more Comfort. We offer free diagnostic with repair, Free Estimates, 24hr emergency service, single and annual maintaince plans to get the most out of your system. We also offer many options for air quality/air purification, surge protectors, Attic insulation call us today and join our team.

I hired them to do my HVAC inspection on a new home purchase. Jody was exceptionally knowledgable,…read moreprompt, and thorough in his work. He provided me with a detailed explanation of the HVAC system, photos and a written report. My step-son is an AC pro in Las Vegas. I sent Jody's report and pictures to him for a second opinion. He confirmed everything Jody wrote up and said that his company couldn't even come close to the price Allgood Mechanical quoted. Jody is now my "go-to" AC guy.