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Monday 8am - 4:30pm Tuesday 8am - 4:30pm Wednesday 8am - 4:30pm Thursday 8am - 4:30pm Friday 8am - 4:30pm

PROLine Products LLC

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Milton, NH
PROLine Products LLC

Quality aluminum trailers, from our family to yours. Looking for that perfect trailer? Let PROLine customize one for you today.
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PROLine Products LLC has been manufacturing some of the highest quality enclosed aluminum trailers available since 2002. Every trailer is made right at our facility in Milton, New Hampshire and sold factory direct to our customers.

09/07/2026

Happy Labor Day! Our office will be closed today, Monday September 7th. We will reopen tomorrow morning at 8am!

09/03/2026

🚛 𝗔𝗻𝗼𝘁𝗵𝗲𝗿 𝗹𝗼𝗮𝗱 𝗵𝗲𝗮𝗱𝗲𝗱 𝗼𝘂𝘁!

We're excited to officially welcome HK Powersports to the PROLine family! These four trailers are headed their way as we speak.

HK Powersports is a longtime, family-owned New Hampshire dealership with two great locations and a long history of serving customers throughout New Hampshire and the surrounding states.

This partnership is a little more personal for us, too. I've had a great relationship with HK Powersports' General Manager, Kevin Snow, for quite some time. Kevin was actually a PROLine customer himself before any of this started, so he already knew our trailers and our company well.

When we decided to start working with dealers, finding the right people to represent PROLine was extremely important to us. We're very happy to be working with Kevin and the rest of the team at HK Powersports.

Having PROLine trailers at both HK Powersports locations will help us keep more trailers in stock and give more customers here in New Hampshire the opportunity to see them in person. They'll also be able to help customers with trade-ins, something we've never been well equipped to handle through our factory-direct operation.

We're genuinely excited about this partnership and about working with another family-owned New Hampshire business.

Welcome to the PROLine family, HK Powersports!

HK Powersports Laconia HK Powersports Hooksett

09/01/2026

⭐️⭐️⭐️⭐️⭐️ We couldn’t ask for better feedback!

It means a lot to know our customer feels confident and comfortable towing their trailer. Quality craftsmanship, strong welds, and attention to detail are what we strive for with every trailer we build.

Thank you for choosing us and for taking the time to share your experience. We truly appreciate your support! 🙌

08/27/2026

🚛 𝗙𝗶𝗿𝘀𝘁 𝗹𝗼𝗮𝗱 𝗵𝗲𝗮𝗱𝗲𝗱 𝗼𝘂𝘁!

We're excited to officially welcome Syracuse Trailer Depot to the PROLine family!

Located about 400 miles from our manufacturing facility in Milton, New Hampshire, Syracuse Trailer Depot will be our bridge into Central and Western New York, putting PROLine trailers on the ground for customers who previously had quite a trip to see one in person.

Their first load of PROLine trailers is officially on its way to Cicero, NY!

We're excited to have their team representing PROLine and look forward to seeing a lot more of our trailers throughout New York.

📍 Syracuse Trailer Depot LLC
8665 Brewerton Rd.
Cicero, NY 13039

𝗢𝗻𝗲 𝗱𝗼𝘄𝗻. 𝗧𝘄𝗼 𝗺𝗼𝗿𝗲 𝗱𝗲𝗮𝗹𝗲𝗿 𝗮𝗻𝗻𝗼𝘂𝗻𝗰𝗲𝗺𝗲𝗻𝘁𝘀 𝘁𝗼 𝗴𝗼!

08/25/2026

🚨 𝗕𝗶𝗴 𝗖𝗵𝗮𝗻𝗴𝗲 𝗶𝘀 𝗖𝗼𝗺𝗶𝗻𝗴! 🚨

For more than 15 years, PROLine has sold our aluminum trailers exclusively factory-direct from our facility in Milton, New Hampshire.

That model has given us something incredibly valuable: tens of thousands of conversations directly with the people using our trailers. Those conversations have helped shape new models, options, and countless engineering and design improvements.

But custom building nearly every trailer also comes with challenges. Custom-order parts, last-minute changes, and the countless variables of building each trailer to spec can create downtime and inefficiencies in the shop. And with only one location, many of our customers purchase their trailers completely sight unseen.

Over the last five years, we've been building our team and refining our processes with this next step in mind. We're now at a point where we can grow without sacrificing the quality or attention to detail that got us here.

𝗣𝗥𝗢𝗟𝗶𝗻𝗲 𝗶𝘀 𝗺𝗼𝘃𝗶𝗻𝗴 𝘁𝗼 𝗮 𝗵𝘆𝗯𝗿𝗶𝗱 𝗳𝗮𝗰𝘁𝗼𝗿𝘆-𝗱𝗶𝗿𝗲𝗰𝘁 𝗮𝗻𝗱 𝗱𝗲𝗮𝗹𝗲𝗿 𝘀𝗮𝗹𝗲𝘀 𝗺𝗼𝗱𝗲𝗹.

💥 𝗗𝗼𝗻'𝘁 𝘄𝗼𝗿𝗿𝘆, 𝗳𝗮𝗰𝘁𝗼𝗿𝘆-𝗱𝗶𝗿𝗲𝗰𝘁 𝗶𝘀𝗻'𝘁 𝗴𝗼𝗶𝗻𝗴 𝗮𝗻𝘆𝘄𝗵𝗲𝗿𝗲. 💥

We've carefully selected three dealers for our initial rollout. They'll maintain inventory of PROLine trailers, giving more customers the opportunity to see and purchase our trailers locally.

🏭 Dealer inventory also allows us to build proven configurations in more efficient production runs, reducing downtime while preserving our ability to custom build trailers.

🛠️ 𝗡𝗼𝗻𝗲 𝗼𝗳 𝘁𝗵𝗶𝘀 𝗰𝗵𝗮𝗻𝗴𝗲𝘀 𝘄𝗵𝗮𝘁 𝗺𝗮𝗸𝗲𝘀 𝗮 𝗣𝗥𝗢𝗟𝗶𝗻𝗲 𝗮 𝗣𝗥𝗢𝗟𝗶𝗻𝗲.

Every trailer will still be built right here in Milton, New Hampshire, by the same team and with the same commitment to quality.

We've spent years preparing for this growth, and we're excited to finally take the next step.

📍 𝗪𝗲'𝗹𝗹 𝗯𝗲 𝗶𝗻𝘁𝗿𝗼𝗱𝘂𝗰𝗶𝗻𝗴 𝗼𝘂𝗿 𝘁𝗵𝗿𝗲𝗲 𝗻𝗲𝘄 𝗱𝗲𝗮𝗹𝗲𝗿𝘀 𝘀𝗼𝗼𝗻. 𝗦𝘁𝗮𝘆 𝘁𝘂𝗻𝗲𝗱!

08/24/2026

We love hearing stories like this! 🙌 Thank you for trusting Proline Products to bring your vision to life with a custom enclosed trailer. It means a lot to know that the quality and craftsmanship have held up through years of use and even a few interior buildouts. We truly appreciate the recommendation and your support! ⭐⭐⭐⭐⭐

08/20/2026

Nothing means more to us than having a customer come back for a second ProLine Trailer! ⭐⭐⭐⭐⭐

A big thank you to this longtime ProLine customer for the incredible review and for trusting us once again.

Thank you for choosing ProLine for a second time and for your continued trust in our team. We truly appreciate your business! 🙌

08/18/2026

🛻 Looking for an aluminum trailer?

We’ve got trailers in stock and ready to work! Whether you need one for hauling, landscaping, recreation, or the jobsite, check out our current selection.

👉 Browse our aluminum trailer inventory: https://nhtrailers.com/current-inventory/

Your next trailer might be just a click away!

08/05/2026

Thank you so much for the amazing 5-star review! ⭐⭐⭐⭐⭐

Hearing feedback like this is why we love what we do. We take pride in building trailers that fit our customers' exact needs, and we're always happy to work through every detail and change along the way to make sure it's just right.

07/31/2026

Check out this orange and black SNO718 7000 that's been upgraded with Ghost LED Plus package, rear canopy, Caliber mat/glide package on both ramps, rear mounted drop leg stabilizers, blackout trim package, black Avalanche aluminum wheels and more!

Address

34 Industrial Way
Milton, NH
03851

Opening Hours

Monday	8am - 4:30pm
Tuesday	8am - 4:30pm
Wednesday	8am - 4:30pm
Thursday	8am - 4:30pm
Friday	8am - 4:30pm

Telephone

+16036527337

Website

https://www.NHtrailers.com/

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