Your Trusted General Contractor in Salem, NH

A house with a gray siding and a white garage door

Roofing

Our roofing services are built to protect your investment. We install, repair, and replace roofs using top-quality materials and precise techniques that ensure long-term durability.

A large white house with a blue toilet in front of it

 Siding

Boost your curb appeal and energy efficiency with professional siding installation. We work with vinyl, fiber cement, and other durable materials to give your home a polished, weather-resistant exterior.

A wooden frame of a house under construction

Framing

From new construction to structural repairs, we handle framing with an expert eye. Our framing crew ensures every project starts with a solid foundation — literally.

Reliable Construction Services Backed by Experience

At GWJ Boss Construction, we bring decades of hands-on experience to every project. Based in Salem, NH, our team proudly serves homeowners across the region with expert construction services that are built to last. Whether you need a new roof, a complete remodel, a room addition, or precision framing, we have the skills and work ethic to deliver exceptional results.

As a locally owned and operated business, we believe in quality workmanship, honest communication, and exceeding expectations. When you hire GWJ Boss Construction, you’re getting more than a contractor — you’re getting a dedicated partner who treats your home like their own.

Why Homeowners Choose GWJ Boss Construction

A black and white icon of a shield with a check mark on it.

Fully insured and licensed general contractor

A black and white icon of two hands shaking with a heart in the middle.

Decades of experience in the construction industry

A magnifying glass is looking at a piece of paper.

Responsive, transparent communication

A hand is touching a heart with stars coming out of it.

Clean job sites and respectful crews

A black and white icon of a briefcase with a gear attached to it.

Custom work tailored to your goals and budget

What Our Clients Are Saying

A row of black stars on a white background.

 "Gary is a true professional. He showed up on time, explained the whole process, and the crew did a phenomenal job on our roof. Highly recommend GWJ Boss Construction!"

Susan M., Facebook Review

A row of black stars on a white background.

"They framed out our garage and did a beautiful job. The work was clean and completed quicker than we expected. Will definitely call again."

Mark T., Facebook Review

A row of black stars on a white background.

 "Gary is a true professional. He showed up on time, explained the whole process, and the crew did a phenomenal job on our roof. Highly recommend GWJ Boss Construction!"

Amanda C., Facebook Review

Recent Projects

A house with a lot of windows and a roof that is covered in snow.
A house with stairs leading up to the front door
A white deck with stairs leading up to it in front of a house.
A house with a ladder on the side of it
A house with a lot of windows and a roof that is covered in snow.

FAQs About Working With GWJ Boss Construction

  • What areas do you serve?

    We’re based in Salem, NH and serve surrounding communities throughout Southern New Hampshire and Northern Massachusetts.

  • Are estimates free?

    Yes! We provide free, no-obligation estimates for all projects. We’ll walk you through the process and pricing upfront.

  • What types of projects do you take on?

    We specialize in residential roofing, siding, framing, remodeling, additions, and more. If you’re not sure if we handle your project, just give us a call.

  • Do you work weekends?

    Yes — we’re available 7 days a week from 8am to 7pm to accommodate your schedule.

 Let’s Build Something Great

Reach out today to work with a general contractor who puts quality, communication, and customer satisfaction first. At GWJ Boss Construction, your home is in good hands.

A logo for g.w.j. boss construction with 25 years experience

 General Contractor | Salem, NH

Contact Us

Serving Southern New Hampshire & Northern Massachusetts

Open 7 Days a Week | 8:00 AM – 7:00 PM