Serna Services

Serna Services operates out of Limestone County, Texas, as a locally owned HVAC company focused on keeping homes and businesses comfortable through reliable air conditioning and heating work. Lionel Serna started the outfit in 2008 and still runs it day to day, serving both residential and commercial customers across the area and nearby towns. They handle everything from routine maintenance to full system repairs on all makes and models, and they keep a 24-hour emergency line open for breakdowns that hit at bad times. The crew knows the local weather patterns can push units hard, so they show up ready to diagnose and fix problems without dragging things out.

When an AC quits or a furnace needs attention, Serna Services sends technicians like Jessie and Jesse who get straight to the issue. One customer had Jessie arrive on schedule, fix the outdoor unit on the first visit, and get the whole system running again the same afternoon for a fair price. Another time the team used a machine to clean coils without pulling them out, saving hundreds compared to other shops that quoted over twelve hundred dollars for the same job. They also handle ductwork, insulation, and furnace repairs, with techs like Lionel taking time to point out exactly what broke and what parts needed swapping instead of rushing through the fix.

Homeowners in Limestone County keep coming back because the work holds up, the crews stay friendly even on tough calls, and the bills stay reasonable without surprise add-ons. Reviews highlight how fast problems get solved, how clearly the techs explain the repairs, and how the pricing beats what competitors charge for similar jobs. That steady record of quality fixes and straight talk adds up across more than a hundred jobs. DIRT Score 5.0 from 128 reviews on Finds.

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“Jessie came out right on schedule He was knowledgeable, kind, and fast! He fixed my outdoor unit first try while we had a lovely chat! The price was more than reasonable. I called this morning and my AC was working again by 4:30pm! Great technician, great company, and excellent service!! I highly recommend them!”

“The first tech who came out (my husband doesn’t remember his name) was very nice and friendly and found the problem quickly. We scheduled to have the problem fixed and had the pleasure of meeting Jesse. Jesse was super friendly and went above and beyond! He worked hard the entire time, was very personable, and clearly knows what he’s doing. He took the time to explain everything and made sure the job was done right. It’s not often you come across someone this knowledgeable and easy to work with—highly recommend! I wish I could give Serna 10 stars instead of 5.”

“I was very , very happy with Lionel and his services today. He was very kind and explained everything to me as he had to do repairs. I was so thankful he did not just rush through the job and do whatever he thought he needed to do on his own, he did show me what was wrong and what needed replace?And if I was wanting to do so , he would do it , and I was very impressed. So I well, definitely.\nTell others , family and friends and all I meet about this company's services. I\nJust wanna say thank you again.\nFor a good experience Serna. I have to say , I called and you answered return my call right away and was very prompt to get someone out here to help me get my air back on and I give you my appreciation and good , thanks for that.”

“Great company and very nice employees! I called because my AC stopped working and they came out and cleaned the coil, other places charge over $1,200 ( i called around) to pull the coil out and clean it but these guys have a machine they use to clean while its still in the system, and only charge $450! Their call out fee was lower than anyone else around and Jessie was very professional and took his time to make sure my AC would work when he left! 10/10 would recommend these guys to anyone!”

“Serna replaced an AC module that went out. We’ve used them for several things now with our AC and we had our attic spray foamed. They are very efficient and fairly priced. Jesse was great!”