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Top-Rated Deck or porch build or replacers in Alton Bay - Updated Nov 2026

Avatar for BRW Construction
BRW Construction
4.8(
25
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"BRW Construction is fantastic. Brian and his team did an awesome job building our farmers porch. Even with all the rain days they completed the project completely on time, they even came on weekends to make up for the rain days, that’s unheard of these days. They cleaned everything up after a long days work too, they are very neat. We are so happy with our build and are looking forward to another project with them. We couldn’t be happier with the way it came out, it’s beautiful! Thank you Brian! We love the porch!"
new entry
Manchester reskin with trex and composite railings
alton bay deck dog ramp
Hardi Siding-Gilford Garage
decking and new composite railings with black metal round balusters

+150

Response time2 days
Response rate100%
Recommended by70%of homeowners
Bluebird Construction
4.8(
207
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1995

Free estimates

Emergency services offered

"Hired them to fix a door that would not close properly. They fixed the door and now it works great. They are good at communicating through the whole process, from identifying the problem and how they will fix it. They kept us up-to-date as they began the process and right through completion. I would hire them again for any home projects."
 603-770-3677
Victorian Home
Response time6 hrs
Response rate100%
14 neighbors recently requested a quote
Avatar for JR Carpentry
JR Carpentry
4.5(
76
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Replacing a complex wooded deck requires many different cuts. He was able to navigate the problems and come up with solutions that pleased me very much. He also installed an additional railing that was much appreciated by my wife and I. This was a 3 level deck."
Our work
Our work
Remodel
Remodel
Remodel

+250

Response time12 hrs
27 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Gavin Liscombe Residential Construction
Gavin Liscombe Residential Construction
4.4(
45
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

In business since 2020

Offers commercial services

Customers say: True professional

"Gavin and his crew did an excellent job on tearing our old deck off (that was falling in on itself) and replaced it with a beautiful deck at a reasonable price. We had some on unforeseen rot but he took care of it before I even knew about it. They all were very polite and they worked from the time they got there till the time they left. There was no standing around every two minutes to take a smoke break. In the end we upgraded some things and paid a little more than what was quoted but it was all worth it for the end product. Thank you to Gavin and his crew for giving us a deck our family will enjoy for years to come. 👏😊"
8 neighbors recently requested a quote
Recommended by28%of homeowners
Avatar for Capital Construction Contracting - North
Capital Construction Contracting - North
4.1(
126
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

In business since 2004

Free estimates

Credit card accepted

"From this first meeting to the job completion I couldn't ask for anything better. They did incredible work tearing down and building a new deck. Not only does it look amazing, they walked me through every step and made it super easy. If I had any questions or worried about anything the project manager, Ryan DePalma, was available almost 24/7 and the team back in the office replied to emails and calls very quickly. I highly recommend."
Recommended by84%of homeowners
Avatar for Live Free Remodeling
Live Free Remodeling
5.0(
11
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

In business since 2025

Credit card accepted

Offers commercial services

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel
Bathroom remodel

+5

Response time6 hrs
Response rate100%
11 neighbors recently requested a quote
Avatar for D. J. Beaulieu Construction, LLC
D. J. Beaulieu Construction, LLC
5.0(
2
)
Deck or Porch - Build or Replace

Serving Alton Bay, NH and surrounding areas

Approved

In business since 2000

Free estimates

With over 40 years of experience, D. J. Beaulieu Construction, LLC is who you need to take care of your home. We handle everything from the initial consultation to making sure your property looks perfect every single time. We will always treat your property as we would treat our own, and you will be surprised how simple and easy our team will make the whole process seem. Give our team a call today. We're looking forward to working with you!

Gallery
3 neighbors recently requested a quote
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FAQs for deck or porch projects in Alton Bay, NH

Northern white cedar is the most affordable cedar decking type and delivers exceptional value with low material expenditures. This option provides proven cost efficiency, meets essential durability standards, and is easy to paint or stain to meet your aesthetic preferences. By comparison, eastern red and western red cedar supply extra longevity and richer texture for a modest increase in investment.

Yes, cedar is a great choice for decking material. It offers a timeless look and natural resistance to decay and insect damage. Keep in mind that cedar requires regular maintenance, like resealing and cleaning, to keep it in top shape. With proper care, a cedar deck can enhance the appeal and value of your outdoor space for years to come.

No, cedar is not pressure-treated because it contains oils and tannins that naturally resist insect damage, rot, and decay. With regular maintenance, including annual cleaning and resealing every two to three years, cedar maintains its structural integrity and pleasing appearance for 10 to 15 years or more. Cedar’s natural durability, without need for chemical treatments, makes it an environmentally friendly option for outdoor structures like decks.

You should stain or seal your cedar deck every two to three years to maintain its appearance and longevity. This helps protect the wood from moisture, mold, and environmental damage, preserving its natural color and extending its lifespan. Regular maintenance keeps your outdoor space both attractive and durable season after season.

The Alton Bay, NH homeowners’ guide to decks or porches

From average costs to expert advice, get all the answers you need to get your job done.