About Us

Straight Line Service Center was established in 2020, located in Henniker, New Hampshire. We offer a range of services for trucks and buses to trailers and RV’s. We only provide the highest quality of maintenance when it comes to your vehicle. From routine oil changes to tires, we have it all. We also have a heavy duty parts store, carrying all major brands, at our location for your convenience.

We Provide Only The Best...

Quality Care

Effciency

Honesty

Testimonials

Since Spring of 2022 We’ve come to Straight Line to service our Tiffin Motor Home and have never been disappointed with their quality of workmanship. They are to be trusted!"

"

My husband has a 2024 International LT road tractor and we just had it serviced. This place is incredible with 100% service and they took the truck in when they said they would and it was also done when they said it would be. THAT is a rarity now a days. We were pleasantly surprised! 2 thumbs up! Highly recommend!"

"

This place came highly recommended from many people in the surrounding areas. After a few bad experiences in my own town...I made the 45min commute to this location at Straight Line and I'm glad I did! Wow, best place for my mini bus! These guys are honest and Straight forward! I couldn't be happier with my experience! If you have a Rv, Bus, or heavy duty truck, these guys should be your go to. They are mine. Thank you"

"

Jim at straight line was amazing! They got us in right away, found the problem and dealt with our warranty company. Extremely friendly and accommodating!! Highly recommend this place!!"

"

They do a great job they explain very well so that you understand they try to do the best that they can and they get the good stuff they can and good conditions stuff
Sometimes cheaper is not better and they try to explain that."

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Experience Matters