Need more room without leaving the home you love? Coast Carpentry specializes in custom home additions that blend perfectly with your existing structure while adding the space you need. Backed by decades of experience and a deep passion for craftsmanship, we help homeowners across Ocean County grow their homes with style, function, and long-term value.
A great home addition shouldn’t feel like an afterthought—it should feel like it’s always been there. That’s why we approach every project with a custom plan that’s fully integrated into your home’s layout, design, and structural flow. Whether it's a sunroom, guest suite, second floor, or bump-out extension, we focus on craftsmanship, comfort, and consistency. Our team manages everything from permitting to finishing touches, so your project moves forward smoothly, on time, and with the attention to detail we’re known for.
Our carpenters approach each build with a sense of passion, and harness their many years of construction experience to build your project in the best way possible, with zero corners cut.
Our team is fully licensed and insured for home additions and home remodels, allowing permits to go through, keeping your build effortless and moving how it should.
At Coast Carpentry, we don’t build standard—we build standout. Each project is crafted with one-of-a-kind detail, precision, and pride, resulting in a space that’s as unique as your home.
We’ve completed additions all across Ocean County—from second-story expansions in Rumson to cozy sunrooms in Spring Lake. With local knowledge of zoning laws, building codes, and neighborhood styles in towns like Point Pleasant, Toms River, and Colts Neck, we make sure your addition is not only stunning but fully compliant. Homeowners in coastal areas like Lavallette and Bay Head trust us to build smart and strong—especially when it comes to structural integrity in changing climates.
With a foundation rooted in precision framing and fine finish work, Coast Carpentry brings unmatched expertise to every home addition we build. Our team understands how to seamlessly connect new structures with existing homes—both visually and structurally. Owner Chris Duffy personally oversees each phase of construction, ensuring your addition isn’t just code-compliant, but beautifully crafted and built to last. When you choose Coast Carpentry, you’re choosing a partner who values your home as much as you do.
Looking to grow your space without the stress? Contact Coast Carpentry today for a custom consultation. We’ll help you design and build an addition that enhances your home’s beauty, comfort, and value—from the ground up.
Your home deserves more than average. At Coast Carpentry, we treat every project as a reflection of our craft and commitment to excellence. With decades of hands-on experience and a true passion for carpentry, we bring unmatched quality, communication, and care to every home we work on. From the first consultation to the final detail, you can trust that your project is in the right hands.
Owner Chris Duffy is involved in every project from start to finish. With a personal commitment to quality and craftsmanship, he’s on-site, leading the process and ensuring each detail lives up to the Coast Carpentry standard.
We believe custom work should feel… custom. That’s why we take the time to understand your vision, style, and lifestyle needs. Everything we build is tailored specifically to you—not a builder grade plan.
At Coast Carpentry, nothing means more to us than the trust and satisfaction of our clients. We take pride in building not just beautiful spaces, but strong relationships grounded in communication, integrity, and top-tier craftsmanship. From custom decks to full home remodels, our clients know they can count on us to deliver stunning results—on time and with care. Their kind words and referrals are the greatest testament to the work we do.
EXCELLENT Based on 17 reviews Posted on Melinda ElmerTrustindex verifies that the original source of the review is Google. We couldn't be happier with the beautiful outdoor deck that Chris from Coast Carpentry built for us. From start to finish, he was the definition of professionalism—always punctual, arriving at 7:30 AM sharp every day, and working tirelessly through 102-degree heat without missing a beat. Even when it rained, Chris was right back on the job as soon as the weather cleared. His attention to detail is unmatched—he’s truly a perfectionist. The craftsmanship of our new deck reflects his commitment to quality. Chris kept us updated and involved in the project/decision making throughout the process. He also kept his work area incredibly clean, which we really truly appreciated especially when having small children and a dog that continued to use the backyard during construction. Thanks to Chris, we now have a gorgeous outdoor space that we look forward to enjoying with our family for many years. We’re already thinking about future projects we’d love for him to tackle. Highly, highly recommend Chris and this company if you're looking for a skilled, dedicated, and reliable deck builderPosted on BonnieTrustindex verifies that the original source of the review is Google. I contacted Chris about a small cabinetry project for my pool cabana. Even though my project was too small for him to complete at this time my experience was positive!! First, I was impressed that Chris answered my call himself right away even though he was at work. Second, he came to my house later that afternoon to view the project. Third, he gave me the number of another carpenter who he thought would be interested in my job… and that carpenter did reach out to me about the project. Simple lessons in customer service that make a big difference in running a successful businessPosted on Timothy RowleyTrustindex verifies that the original source of the review is Google. We hired Coast Carpentry to repair and remodel the deck to our home in Ocean City NJ. The repair essentially required removing the entire deck upgrading it to include a beautiful stairway access to our first floor. We couldn’t be happier with the work completed. Highly recommend them.Posted on Joseph LucchioTrustindex verifies that the original source of the review is Google. Chris showed up promptly,, Built a deck with railing Finished the in a timely fashion, With a style and expertise , Truly, a rarity these days I highly recommend him and his crewPosted on Anthony D'AlessandroTrustindex verifies that the original source of the review is Google. Coast Carpentry did an addition and renovation on my old house. Craftsmanship was excellent and everything was completed on time! It was a good experience, I would definetly recommend if you have a home project coming up it was easy to work with them from start to finish!Posted on Kimberly FinchTrustindex verifies that the original source of the review is Google. Chris of Coast Carpentry is a pleasure to work with! He redid the ceiling in my daughter's room; he made sure that it was clear of mold and safe for her. She loves her space now and it is beautiful. Chris does great work and he is a wonderful human- very personable and courteous! Reach out to him for all of your carpentry needs.Posted on Vincent CampiTrustindex verifies that the original source of the review is Google. Chris is a talented carpenter and I highly recommend him for any home improvement project. He is meticulous in his work and timely in managing his projects. He is just great to work with.Posted on Bryan TuohyTrustindex verifies that the original source of the review is Google. My wife and I bought our first home a few years back and didn’t realize the work that that lied ahead. Luckily a friend recommended Chris and the rest was history Chris checks all boxes. An excellent carpenter, creative, communicative and reliable. Have and will continue to recommend him.Posted on tedlbotTrustindex verifies that the original source of the review is Google. Chris worked on a number of projects for Leeds Builders. He started as a carpenter and began running projects a couple years later. Chris worked on many high end homes for us was the project lead on a million dollar renovation in Margate that was delivered on schedule and within the budget. Chris is an excellent carpenter, is trustworthy and honest. He is knowledgeable and can help with design ideas that add value to any project. I would highly recommend Chris to anyone looking to do a home renovation.Posted on Lance MeehanTrustindex verifies that the original source of the review is Google. Chris repaired my damaged deck. It looks like new and he was able to do it sooner than I expected to be able to get the work done.
An addition requires some thought and we want to make sure you are well equip with all the information you might be needing when searching for a home addition contractor! Learn from our expert contractors below!
Yes—every detail is considered, from siding and roofing to trim and layout, so your new space feels like a natural extension of your home.
It depends on the size and complexity, but most additions take between 6–12 weeks. We provide a clear timeline and keep you updated throughout.
Yes—from layout and room purpose to finishes and fixtures, we build everything around your vision and needs.
Yes, and we handle all permitting and inspections to ensure your project complies with local building codes.
Absolutely. We specialize in both ground-level and upper-level additions and will assess your existing structure to determine what’s possible.
In most cases, yes! We work in phases to minimize disruption and keep your home functional while we build.
From Point Pleasant and Lavallette to Rumson, Colts Neck, and beyond, Coast Carpentry brings the same level of care, creativity, and professionalism to every home we work on. We understand the character and style of each coastal town and tailor our designs to complement your home’s surroundings. Whether we’re building a custom pavilion in Spring Lake, a full addition in Toms River, or detailed trim work in Bay Head, we deliver high-end results that reflect our dedication to quality and your unique vision.