Frankenstein, Llc

Frankenstein LLC operates out of Grayson County, TX as an HVAC outfit focused on residential and commercial systems. They stick to straightforward service and repair work along with full installations for HVACR setups, duct work, chillers, walk-ins, reach-ins, and ice machines. The crew covers the local area with regular hours from Tuesday through Friday and on-call support over the weekend. Their approach centers on delivering solid results for the money customers have put into their homes and businesses without extra layers or delays that drag out simple fixes.

Technicians like Wes Cox handle the day-to-day jobs by fielding inquiries about parts and walking customers through options for repairs or replacements. One case involved sorting out a parts order for a system issue where Wes confirmed details, shipped items quickly, and kept the timeline clear so the job could move forward without holdups. Another time he helped secure components for a valve-related problem on a commercial unit and got everything ready for immediate delivery. Customers drop off equipment for work and get direct answers on timelines and choices, covering everything from basic service calls to bigger chiller and duct installations that keep systems running through Texas heat.

Customers keep coming back because the quality of the repairs and installations hits a high mark with no shortcuts on the work itself. Response times stay fast whether someone calls or emails in, and communication stays clear from the first contact through completion so nothing gets lost in translation. This shows up across jobs where technicians explain options patiently and deliver on promised schedules. DIRT Score 4.89 from 99 reviews on Finds.

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“Wes Cox was extremely helpful throughout the entire process of getting the parts I needed and ensuring they were shipped quickly and efficiently. He took the time to understand exactly what I was looking for, answered all my questions clearly, and made sure everything was handled without any issues. His knowledge really stood out, and it gave me confidence that I was getting the right parts for the job. On top of that, he was easy to communicate with and provided great customer service from start to finish. I really appreciate the support and would definitely recommend working with Wes.”

“So far I have had a great experience. I sent in an inquiry on there website and Wes Cox reached out and answered all my questions and more. I ordered a set of heads and other goodies through Wes. Gave me a timline and im excited to receive my new heads and get the valve drop issue behind me.”

“Wes was very helpful in finding me a solution for my C6 Z06 cylinder head issue. He patiently walked me through my options and helped me secure a new set of heads ready to ship right away. 10/10 service. I highly recommend.”

“Where to begin. Well I guess from beginning, I reached out to their team via email asking about getting a set of heads redone. They responded quickly and answered all my stupid questions. When time came to drop off the heads I was greeted by the staff. I had the pleasure of sitting with the production manger who took the time to chat with me about my build and goals for the project. He made me feel just as important as the guy who had them build a 4000hp all billet aluminum engine for. Now fast forward a few weeks to the day I picked up my heads. They were in one of the coolest boxes I’ve ever seen. Packaging and care of these heads were top notch. When I opens the box I was in complete awww. The attention to detail was out this world. The pictures don’t do them justice. The polish and engraving alone took a set of stock castings to the next level. If you are looking for a freakishly awesome company to do your machine work call Frankenstein Engine Dynamics. One last thing price point, they are right in line with those other folks, but I can guarantee they aren’t doing what FED does. See pics below.”

“Excellent customer service from Wes Cox. Waiting on my next order to arrive super exited to see the numbers on the new build with F710 and intake package”