Our Story

We are a family-owned and operated diesel repair shop located at 715 Bartholomew Road in Middletown, CT. Founded in 2017 by our dedicated owner, Jay Bednarz, our mission is simple: to provide top-notch repairs and services to our valued clients.

Welcome to Stanley & Sons Services

Who We Are

Stanley & Sons Services was founded in 2017 by Jay Bednarz, an innovative diesel mechanic with over 15 years of wrench-turning experience under his belt. What was once a one-man army is now a full-scale diesel repair shop that works on everything from the local tradesmen's F250 to a large company’s fleet of aerial lift trucks. With our certified mechanics, along with our fully equipped service trucks operating on a 24/7 basis, you can count on Stanley & Sons Services for all your diesel repair needs.

What Sets Us Apart

So, what sets us apart? Well, we're the go-to crew for anything with an engine. Whether it's a minor repair or a full-blown engine conversion, we've got your back. We have certified welders and fabricators who handle custom metalwork, repairs, and mods with surgical precision. Plus, we have ASU-certified technicians on our team, guaranteeing that your vehicles are in good hands. When you come to Stanley & Sons Services, you're not just getting your vehicle fixed; you're joining a community of gearheads who understand what it means to keep your business on the road.

While we excel at all things diesel, we do specialize in a variety of areas, like aerial lift trucks, bucket trucks, performance ECM tuning, solving EGR and DPF headaches, power upgrades, and factory diagnostics for all makes and models of trucks. At Stanley & Sons Services, we're your partners when it comes to your truck's performance and longevity. Whether you're rolling in with a truck, looking to maintain a fleet, or need repairs for your heavy equipment, our mission and goal are to keep your operations running smoothly.

Contact Us Today

Big thanks for thinking of us as your diesel repair allies. Drop us a line today, and let's keep those engines roaring and tires turning. Contact us to schedule an appointment or to learn more about our repairs and services. 

Our Specialties

While we excel in various aspects of diesel repair, some of our main areas of expertise include:

  • Aerial lift trucks
  • Performance ECM tuning
  • EGR and DPF solutions 
  • Power upgrades
  • Factory diagnostics for all manufacturers

Our Mission

At Stanley & Sons Services, we're not just a repair shop; we're a partner in your vehicle's performance and longevity. Whether you're a truck driver, a fleet manager, or an equipment operator, our mission is to keep your vehicles running smoothly. 

We thank you for considering Stanley & Sons Services as your diesel repair partner. Contact us today, and let's keep your engines roaring with power and efficiency.


Our Diesel mechanic Services

With 5 service bays and a highly-trained diesel mechanic team, Stanley & Sons Services take on a wide range of repair and maintenance services. From DOT inspections and preventive maintenance services, to repairs on budget & aerial lift trucks, trailers & heavy equipment, trust our diesel mechanic team to get your vehicles and equipment back to fine working condition.

Already know what you are looking for? Contact us for service today!

Request Serviice

Customer Reviews

Check out what our customers say about our shop.

Great guys, great work, great competitive pricing. It's nice to see a small business built from the ground up proving what a real passion for the work they do and customers they service. One of the few shops that is actually good with diesels if you're looking to get your truck or equipment repaired and repaired correctly look no further this is the place.
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Jimmy Greene

I've been looking for someone for the passed 30 years and I finally them. The work I had done was very professional and kept me up to date on my vehicles,  ie would it cost me more or they found something we were not aware of.  I'm also ready to leave my 3rd vehicle service which will need ,check engine light,front end work,exhaust system and so on. Very reasonable labor rate I recommend all my family and friends.
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Barry Rice

The owner was very nice and professional. He is an incredible mechanic and gets the work done correctly every time. This is the only place I’ll ever go to get ANY sort of service on any of my vehicles. Not to mention he works on Foreign vehicles as well! Overall great environment, amazing owner, incredible quality work.
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Nick Larson

For ANY of your vehicle's needs, see Jason @ Stanley & Sons. He skillfully rebuilt my Entire-Cooling-System Mid-Summer, on a tight-budget, during-a-Pandemic!
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Anthony Martingano

Contact Us

Choose Stanley & Sons Services for your diesel truck needs. Contact us today to schedule diesel services and experience the reliability and performance that your truck deserves. Your satisfaction is our priority, and we're here to keep your trucks running smoothly.

Request Service

Simply fill out our online service request form, and we will get back to you as soon as possible to schedule an appointment.