Across Southern New Hampshire, many homes stand on full poured concrete or stone basements. A raised deck often sits right beside that foundation. Rain and snowmelt slip between the boards and soak the ground below. Allan Trant’s Exterior Finish Work offers under-the-deck waterproofing in Lee, NH, that catches that water before it lands.
You gain dry space under deck boards for storage, seating, or shade. Want to use the space under your deck this season? Book a free consultation, and we’ll show you what’s possible.
Reach Out Today!
Requesting a free estimate is quick, easy, and comes with no obligation to commit. Our team provides honest, transparent pricing so you can explore your options without pressure.
NOTE: We don’t offer repair or staining services
We install under-deck waterproofing in Lee, NH, as a system fitted below your joists. It catches water that falls between the boards. Then it channels that runoff to a gutter and downspout, away from your house. Our team plans the layout around your existing framing and beam spans. You get usable shelter below and less water pooling near your foundation. Explore some deck features you can install.
New Hampshire requires home improvement contractors to register with the NH Office of Professional Licensure and Certification. Before you hire one of the deck waterproofing companies in Lee, NH, ask to see that registration. It’s a quick way to vet who works in your home.
The 2020 IECC requires basement finishing in New Hampshire to meet modern insulation and air sealing standards. A deck drainage system moves runoff away from your foundation walls. Our expert deck waterproofing services in Lee, NH, give you a drier starting point.
An under-deck ceiling hides the system and gives the area below a finished look. Store patio furniture, firewood, or a grill in the dry space under the deck framing we’ve sealed off. We use weather-resistant fasteners matched to your existing frame.
our Process
We’ve perfected a straightforward, transparent approach to guarantee a superior building experience for your custom deck or outdoor living project across the NH Seacoast.
1
Discuss your vision for your custom deck or outdoor living space and explore all design and material possibilities (Composite, Railings, etc.).
2
Create a custom design tailored to your outdoor living space. We work with materials like Trex, Timbertech, or Azek.
3
Receive a clear, detailed estimate. We handle the critical step of securing all necessary building permits before scheduling construction.
4
Our experts deliver meticulous construction with attention to detail. We give the deck framing extra attention, because it carries everything built on top of it.
5
We conduct a thorough final inspection with you, confirm satisfaction, and hand over your keys to your beautiful new outdoor space.
At Allan Trant’s Exterior Finish Work, we deliver more than just exceptional decks and porches. Our fast, high-quality craftsmanship means your outdoor space is completed on time without sacrificing attention to detail.
Our track record started in 2014, when Allan Trant founded Allan Trant Exteriors. The roots go deeper than that. Allan is a third-generation carpenter who grew up immersed in construction. He learned precision, hard work, and customer-first service long before he opened the company.
In the years since, our team has built high-quality decks and outdoor living spaces across New Hampshire’s Seacoast. Each project reflects integrity, attention to detail, and lasting value.
That record rests on more than deck building. We offer personal service and honest craftsmanship on every job. We install premium materials like Trex and TimberTech, communicate clearly, and complete projects on time.
Families across Southern New Hampshire’s exurbs of Boston, including Lee, NH, see that same steady approach from our crew. Integrity and community commitment guide us as we turn your vision into a space you’ll cherish for years.
We’re also excited to partner with deck contractors and build lasting professional relationships.
See the services we offer in Lee, NH, and find the right fit for your home.
We understand that a new deck is a significant addition to your home, which is why we provide a robust deck building warranty to protect your project. Our goal is to ensure you feel completely secure in your decision to work with us. We combine our own workmanship promise with industry-leading manufacturer guarantees to offer you complete coverage. This approach covers the labor and the materials used in your project.
MAKE YOUR OUTDOOR LIVING PROJECT AFFORDABLE WITH GREENSKY®
Investing in a custom composite deck, home addition, or outdoor living space shouldn’t mean compromising on quality or waiting years to build. At Allan Trant’s Exterior Finish Work, we partner with GreenSky® to offer flexible, hassle-free payment solutions tailored to fit your budget.
Through our dedicated GreenSky financing options, New Hampshire homeowners can take advantage of fast approvals, competitive rates, and deferred interest or low monthly payment plans. Whether you are planning a complete deck resurfacing, an ADU build, or a luxury outdoor kitchen, you can start construction today while managing payments comfortably over time.
Applying is quick, secure, and will not impact your credit score during initial pre-qualification. Contact our team today or visit our financing page to learn more about funding your upcoming project.
Yes. Your first step is a free in-depth consultation, which we schedule within 48 hours of your form. After a site inspection, we create a 3D rendering and a quote with every line itemized.
We build with cedar and mahogany for classic wood decks. For a low-maintenance surface, we install composite from AZEK/TimberTech, where we hold Gold Member status.
We pour concrete footings beyond frost line requirements and add Z-flashing to keep moisture away from the framing. Sound footings and careful flashing protect the structure for years.
No. Composite decking skips the staining cycle that wood needs. Our maintenance plans can extend framing life by 10 to 12 years, so the structure underneath lasts too.
Every project carries our workmanship warranty and the manufacturers’ warranties on materials. You receive a packet with the full warranty details, so you know exactly what’s covered.
Homes across New Hampshire’s Seacoast come in every shape. Some decks sit just a few steps off the ground. Others rise a full story above a sloped backyard. Lee, NH, is the home base for this page, and we bring the same careful planning to properties of every age and layout in the region. Not sure your deck suits a waterproofing system below? Ask us during a free consultation, and we’ll measure it with you. Browse the other areas we serve to find your community.
