Full-Service General Contractor in Salem, NH
Construction Services Built on Experience & Craftsmanship
When it comes to improving your home, GWJ Boss Construction is your one-stop source for high-quality general contracting services. Based in Salem, New Hampshire, we provide a full range of expert construction solutions designed to protect your home, enhance your space, and bring your vision to life.
Whether you’re looking to upgrade your roof, build a new addition, or remodel your interior, our experienced crew delivers reliable results on time and on budget. Every service we offer is backed by decades of hands-on experience and a commitment to doing the job right the first time.
Our Core Services
Roofing
We specialize in residential roofing systems that are built to last. Whether you need a complete replacement, emergency repairs, or a new roof for an addition, we handle every detail with care. Our roofing services include:
- Roof replacements and tear-offs
- Leak detection and repairs
- Asphalt shingles and other materials
- Proper ventilation and flashing
Siding
Boost your home’s curb appeal and weather protection with our professional siding installation. We work with high-quality materials to give your home a durable, low-maintenance exterior. Services include:
- Vinyl and fiber cement siding
- Trim and fascia installation
- Repairs and replacements
- Weatherproofing and insulation improvements
Framing
The foundation of every project starts with expert framing. Our team ensures precise, code-compliant structural framing for all types of builds, including:
- New construction framing
- Garage and addition framing
- Interior wall construction
- Structural repairs
Remodeling
Ready to transform your living space? We offer complete remodeling solutions tailored to your needs. From small upgrades to major renovations, we help homeowners reimagine their spaces with results that look and feel brand new
- Kitchen and bathroom remodels
- Basement finishing
- Whole-home renovations
- Flooring, drywall, and finish carpentry
Additions
Need more space? We design and build seamless home additions that blend with your current home while adding valuable square footage. Our additions are functional, beautiful, and built for long-term value
- Attached garages
- In-law suites and sunrooms
- Second-story additions
- Customized designs based on your needs
Why Choose GWJ Boss Construction?
Licensed & insured in New Hampshire
Trusted by local homeowners in Salem and beyond
Free, upfront estimates and detailed project planning
Transparent pricing and clear communication
Projects finished on time — no excuses
Client Testimonials
“GWJ Boss Construction did our roof and siding — both came out perfect. Gary’s team is friendly, fast, and detail-oriented.”
Jennifer L., Facebook Review
“They built a new garage for us and did a stellar job with the framing and roofing. Very professional, highly recommend.”
Peter S., Facebook Review
FAQs About Our Services
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Do you offer free consultations for all services?
Yes! We provide free, no-obligation estimates for every service we offer.
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How do I know which service I need?
We’ll walk you through the options during your consultation and make professional recommendations based on your home’s condition and your goals.
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Do you handle permits and inspections?
Yes — we manage all required permits, code compliance, and inspections so you don’t have to.
Ready to Get Started?
If you need a dependable general contractor in Salem, NH, GWJ Boss Construction is here to help. Let us bring your next home project to life with expert service and quality craftsmanship.
General Contractor | Salem, NH
Contact Us
Serving Southern New Hampshire & Northern Massachusetts
Open 7 Days a Week | 8:00 AM – 7:00 PM
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