Custom Decks, Built-Ins & Home Improvements
Veteran-Owned • Fully Insured • Quality Craftsmanship
Serving Hampton, Exeter, Stratham, Portsmouth, Dover, Newmarket, Kingston & surrounding areas.
Expert Carpentry & Home Improvement Services
603 Decks LLC is a veteran-owned and operated carpentry company serving homeowners throughout New Hampshire’s Seacoast region.
We specialize in high-quality residential construction, custom carpentry, and home improvement projects built with craftsmanship, attention to detail, and clear communication from start to finish.
Our Services
Outdoor Living & Exterior Improvements
• Composite Deck Construction
• Porch Construction & Renovations
• PVC & Composite Railing Systems
• Exterior Stairs & Entry Platforms
• Siding, Trim & Exterior Finish Carpentry
Doors, Windows & Structural Repairs
• Entry, Storm & Sliding Door Installation
• Window Replacement & Installation
• Structural Framing Repairs
• Beam, Column & Support Repairs
• General Residential Carpentry
Interior Remodeling & Finish Carpentry
• Custom Built-Ins & Cabinetry
• Trim, Baseboard & Finish Carpentry
• Flooring Installation
• Drywall Repair & Interior Renovations
• Mudrooms, Closets & Custom Storage Solutions
Why Homeowners Choose 603 Decks
✔ Veteran-Owned & Operated
✔ Fully Insured
✔ Quality Craftsmanship
✔ Honest Communication
✔ Detailed Written Estimates
✔ Reliable Scheduling
✔ One Project At A Time Focus
From custom built-ins and interior renovations to decks, porches, doors, windows, and structural repairs, 603 Decks LLC provides professional carpentry services tailored to your home and your vision.
What Our Clients Say
⭐⭐⭐⭐⭐ Shannon D.
“He did amazing work on two different projects we hired him for. Very detail oriented and provided quick, quality work.”
⭐⭐⭐⭐⭐ Andre C.
“I worked with David for interior renovations on a rental property in Dover. He produced great results and was a pleasure to work with. I have no hesitation giving his name out to friends and family who need carpentry work.”
⭐⭐⭐⭐⭐ Joe L.
“603 Decks & Carpentry Projects helped us refurbish our 150+ year old home from beginning to end. Creativity, flexibility, fairness, and reliability are the reasons we kept returning to 603 Decks project after project.”
⭐⭐⭐⭐⭐ Eric J.
“David has assisted me with several rehab tasks at properties I manage and at my own residence. He is a skilled carpenter who is reliable and easy to work with on projects of all sizes.”
⭐⭐⭐⭐⭐ Liz C.
“I have worked with 603 decks for two of my home projects now. I highly recommend them. David is punctual great at communication and good at his trade. I would not hesitate to call him again in the future.”
⭐⭐⭐⭐⭐ Eric C.
“Whether you are looking to accomplish a home improvement project or have investment properties that need repairs or capitol improvements done – working with David at 603 Decks is a hassle free way to get those tasks completed. David has carpentry skills and building system knowledge that allow him to offer insight and opinion on what is the most efficient way to complete a project from a cost and time perspective. From building decks (permits, material recommendation, installation) to installing doors/windows, interior/exterior trim and other various carpentry related work- David has the ability to tackle all size projects and is easy to work with.”