Full-Service Auto Repair in Watertown, SD


At Service Plus, Inc., we offer a wide-variety of auto repair services for both foreign and domestic makes and models. Our highly-skilled technicians will thoroughly inspect your vehicle and recommend only the most appropriate solutions to keep you on the road longer. Service Plus, Inc. is happy to work around your schedule as well as your budget, because we understand how inconvenient any troubles with your vehicle can become.

For your convenience, we also offer free pickup and delivery, FREE estimates, $15.00 pre-buy inspections and our staff will wash the windows and vacuum every vehicle that comes through our shop.

Our Services

  Oil Changes

Changing your oil is one of the most important, and inexpensive, components of car maintenance. After an allotted amount of time or mileage, bring in your vehicle to Service Plus, Inc. for an oil change. Routine oil changes not only keep your engine running efficiently, but will also save you money down the road.


If you hear your brakes squeaking or grinding, or are experiencing jerky stops, it may be time for a brake inspection. Our certified technicians have the skills to resolve any brake problem, including brake pad replacement.

  Tire Maintenance

Proper tire maintenance is key to getting the most out of your tires. Service Plus, Inc. is equipped to check your tire pressure, rotation, wearage and any possible damage. Monthly tire inspections can improve your vehicle’s mileage and performance.

  Suspension Work / Shocks & Struts

A rough or bumpy ride is an indication that your suspension needs work or your shocks and struts should be replaced. Having poor suspensions can affect your ability to control your vehicle. Our team will guide you through the process of improving your suspensions and help you get a smoother, less bumpy, ride.

  Engine Repair & Maintenance

If your vehicle is showing signs of engine failure, bring it into our shop right away. We will diagnose the problem and do our best to repair the engine before considering replacing it altogether.

  Tune ups

Regular engine tune ups help your vehicle run stronger and longer. At Service Plus, Inc., we inspect all of your engine parts and install new ones if needed. We also offer diagnostics of driveability problems.


Service Plus, Inc. utilizes battery testing and charging to help us accurately determine if our customers need their battery replaced. Car batteries wear out every few years so if we do find that you need a new battery, we’ll track down the best one for your vehicle.

  Electrical Work

Your vehicle’s electrical system consists of the battery, starter and alternator. These are all vital components to getting you from point A to point B and our shop is equipped to troubleshoot and diagnose any issues with your electrical system.

  Diagnostic Tests

Our team at Service Plus, Inc. is trained to perform diagnostic tests on your vehicle. This test uses a computer system to pinpoint and reveal any issues present in the vehicle, such as why a check engine light is on. Diagnostic tests help us make precise decisions regarding your vehicle.

  Driveability Assessment

Driveability assessments are performed to evaluate the vehicle’s startability, acceleration and other important factors that affect the driver’s safety. Determining drivability is important to ensuring a vehicle is prepared to take on continual use.

  Heating & Cooling Systems

Your vehicle’s heating and cooling systems play a vital role in your comfort level while driving. Before the warm or cold weather hits, bring in your vehicle to Service Plus, Inc. to have your systems checked and to minimize the likelihood of your engine overheating.

  Transmission Flush, Service & Replacement

A transmission flush is a service that removes old fluids and replaces it with new, clean fluid to help prolong the life of your transmission. Performing a transmission flush can help prevent costly repairs in the future. If your transmission is beyond repair, we have the tools and experience to replace it with a new one.

  Vehicle Inspections

Looking at purchasing a new or used vehicle? Performing a pre-buy inspection is beneficial to having any unforseen expenses after the vehicle has been purchased. We will provide a complete estimate on repairs needed to make the vehicle safe to drive.

For more information about Service Plus, Inc. and the auto repair services we offer, give us a call today (605) 882-3236. We are more than happy to answer all your questions and provide you with a FREE estimate.