Farmington, NH, Custom Decks

At Allan Trant’s Exterior Finish Work, our third-generation team pairs premium materials with real attention to detail. We build custom decks in Farmington, NH, that fit the way you live, entertain, and relax at home.

You get a deck built to handle New England’s freeze-thaw winters, one designed around your space and your goals. From the first sketch to the final board, we treat your project like it’s our own backyard. Reach out to us today to get started!

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

Craftsmanship

Durability

Precision

Building Custom Decks That Last for Decades

Our custom decks in Farmington, NH, give you a durable, beautiful place to spend more time outside. We handle everything from footings below the frost line to code-compliant framing and premium decking. Whether you own an older colonial or a newer home, we shape each build around your property, your layout, and the way you want to enjoy your yard.

Outdoor Living Built Around Your Vision

Every home deserves a deck design that feels natural, not forced. As trusted custom deck builders in Farmington, NH, we start with your ideas and refine them into a plan that works. You get renderings, clear timelines, and a build shaped by your goals.

Materials Made for New England Weather

Farmington homes take a beating from snow, rain, and ice. Our professional custom deck services in Farmington, NH, use premium composite and PVC that resist rot and warping. As a skilled patio builder, we install decks that stay solid through years of freeze-thaw cycles.

More Room to Enjoy Your Home

A great deck turns unused yards into a real outdoor living space. We build with poured concrete footings, proper flashing, and careful joist sizing. Your finished project adds value, function, and a spot the whole family and friends will actually use and enjoy.

About Us

Allan Trant Exteriors, established in 2014, is built on a legacy of craftsmanship spanning three generations. Allan Trant, a third-generation carpenter, grew up immersed in the art of construction, learning the values of precision, hard work, and customer-first service. Today, his team specializes in creating high-quality decks and outdoor living spaces across New Hampshire’s Seacoast, delivering projects that reflect integrity, attention to detail, and lasting value.

More than just a deck builder, Allan Trant Exteriors prioritizes personalized service and honest craftsmanship. From using premium materials like Trex and TimberTech to ensuring clear communication and timely project completion, the company is committed to turning homeowners’ visions into reality. With a foundation of integrity and community commitment, they create outdoor spaces that homeowners can cherish for years to come. We are excited to partner with deck contractors and build lasting professional relationships.

Testimonials

      EXCELLENT  
   Based on 21 reviews 
    
 
 
 
   
 
 
       Posted on Google  
   
   Christine Graham 
 
 
 
 Trustindex verifies that the original source of the review is Google. Allan and Samantha Trant are exceptional! They take quality seriously and are always professional. I love my new deck and highly recommend them if you are looking for high quality, professional, responsive, and clear communication regarding your project.
  
 
      Posted on Google  
   
   P W 
 
 
 
 Trustindex verifies that the original source of the review is Google. I can't say enough about these folks.  I had 7 quotes and selected Trant's out of all of them as my neighbor had extensive work done by them and the finished quality was outstanding. They weren't the lowest or the highest. Right in the middle, but they were the ones I felt the most comfortable with. There were 3 in the crew and the same crew worked on the project from start to finish. They were all respectful, friendly, VERY easy to deal with, and in many cases went "above and beyond". The design and quality of their work and their attention to detail was absolutely impeccable. There were no "surprises" or incidental costs added on regardless of what issues they ran into during the project. The communication was great and timely. I would hire them back for any project in a New York minute. As a matter of fact, I am having them look at another project for my son as I write.
  
 
      Posted on Google  
   
   Kathleen Sawler 
 
 
 
 Trustindex verifies that the original source of the review is Google. Exceptional service and craftsmanship. Always kept us informed on the process. Reasonably priced and very professional and respectful.
  
 
      Posted on Google  
   
   Pauline Rock 
 
 
 
 Trustindex verifies that the original source of the review is Google. Allan Trant’s Exterior Finish Work built a beautiful new deck at the back of our home in Dover, NH, and we couldn’t be more pleased with the results!

From beginning to end, communication was excellent. Allan’s crew was talented, professional, courteous, and respectful of our property. Their attention to detail and craftsmanship were exceptional, with every measurement and finishing touch completed with great care and precision.

Once the deck was finished, they returned to remove all of the debris, added crushed rock underneath the deck, and even put down topsoil and seed around the surrounding areas to give everything a clean, finished look.

We absolutely love our new deck and have already recommended Allan Trant’s Exterior Finish Work to several friends. We will gladly continue to sing their praises to anyone looking to build or replace a deck. We highly recommend them!
  
 
      Posted on Google  
   
   Yasmina 001 
 
 
 
 Trustindex verifies that the original source of the review is Google. Allan Trant’s Exterior Finish Work did our deck when we built our home in Greenland, NH, and we couldn’t be happier with the results. The attention to details was outstanding, and the entire process was professional from start to finish.
Our deck has become one of our favorite parts of our home.
If you’re looking for an honest contractor who delivers high-quality work, and beautiful results, I highly recommend Allan !
  
 
      Posted on Google  
   
   Kristy Osborne 
 
 
 
 Trustindex verifies that the original source of the review is Google. The craftsmanship on our front entry stairs is top-notch and exactly what we wanted!  Allan and team really take pride in their work and the project went smoothly from start to finish. Very happy with the result.
  
 
      Posted on Google  
   
   Alexandra Roy 
 
 
 
 Trustindex verifies that the original source of the review is Google. Can’t say enough good things about working with Allan & his team. The whole process was easy, transparent and professional. Hired them to do some work that impacted the inside and outside of a second floor window. After we contacted them they made it easy to schedule a time to meet and get a quote, understand costs, answered all my questions. They were very knowledgeable about what they were doing and how they would repair the problem. We trusted them to do the job and they did not disappoint! The team that came to do the job was well mannered and cleaned up after themselves. I can’t say I’ve ever worked with a contractor that was this put together. We recommend them and will also be using them again for future projects.
  
 
      Posted on Google  
   
   Stephen Myong 
 
 
 
 Trustindex verifies that the original source of the review is Google. I had my deck completed last fall, and they did a wonderful job. The work was finished in a very timely manner, and they were flexible in handling additional work at a reasonable price. I would highly recommend Allan Trant’s Exterior Finish Work / AJT Properties.
  
 
      Posted on Google  
   
   Keenan Duffy 
 
 
 
 Trustindex verifies that the original source of the review is Google. I couldn’t be happier with the work and outcome of my new deck build.
Allan was a pleasure to work with and would highly recommend him to anyone.

Areas We Serve

Allan Trant’s Exterior Finish Work is a trusted deck and porch building company specializing in high-quality craftsmanship and efficient project completion. Serving the Seacoast of New Hampshire, the company is known for delivering customized outdoor living solutions with integrity and expertise.