Sisemore Services, Llc

Sisemore Services operates as a family owned business out of Sherman in Grayson County, Texas, where they focus on HVAC work for homes and businesses while also handling plumbing. Certified technicians staff the crew and they take on all makes and models of heating and cooling equipment plus water heaters. The company keeps regular hours from eight in the morning through five in the afternoon on weekdays with a technician on call Saturdays, and they offer free in home estimates to get jobs started without delay. Homeowners and commercial customers around Grayson County rely on them for straightforward service that covers installation, repairs, and maintenance on comfort systems.

Sisemore Services handles full system replacements along with targeted repairs on outdated heat and air units to keep them running until a full swap makes sense. They respond to calls about no hot water and get it restored in a matter of hours, and they send techs like Mitchell who arrive on time and fix an AC system in forty five minutes. Plumbers from the crew call customers directly to explain issues and walk through options before any work starts. Kevin and his helper recently installed a new system after a weekend message, keeping the process moving without extra steps. Prices stay reasonable on these jobs whether it is a quick fix or a larger replacement.

Customers keep coming back because the work quality stays high with systems restored properly the first time, response speed cuts downtime on broken heat or cooling, and pricing stays fair without surprises. Communication comes through clearly when techs explain what needs doing and show up exactly when promised. Reviews mention friendly crews who save money on parts and labor while handling both HVAC and plumbing calls in Grayson County. DIRT Score 4.88 from 52 reviews on Finds.

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“So affordable they helped me save like 800 bucks. The worker are very friendly, and quick. My hot water was back on in a few hours. 10/10”

“We’ve used Sisemore twice in the past few months and have been very pleased. Their prices were very reasonable, and they showed up exactly when scheduled. The second time, I had a plumbing question, and they had the plumber call me directly to explain the issue and walk me through a product before the appointment. We also talked about another plumbing concern, and they suggested a future fix along with a cost estimate. Overall, the staff has been extremely friendly and customer-focused.”

“I have lived in Sherman my entire life. This is the go to company. Mitchell is a great honest professional technician. This gentleman was here on time and had my system back and working within 45min. Reasonable price. Thank you.”

“They are AWESOME! I have used them a few times for my outdated and worn out heat/ac to keep it limping along until i could afford to replace the whole system! I messaged over the weekend and got new system ordered and installed yesterday (10/15/2025)! Keven and his helper were great! I cant speak for price because i love the service here so i didnt check anywhere else! Brad, Carie, and their people are all very courteous and great to work with! As i said i emailed over the weekend and Carie email back with my quote on monday and ordered my unit and had it installed on wednesday!”

“Just wanted to give a shout out to Carrie, Marshall, Mark and Holden for their professionalism. It was a water heater replacement in a very confined and outdated space but after completion, very impressed. I thought their pricing was very competitive and they're quality of work outstanding, you won't be disappointed.”