Top-rated contractors.

Get matched with top contractors in Alton, NH

Enter your ZIP and get matched with up to 5 pros

Need a pro for your contractor service project in Alton, NH?

Select your specific project to find the pro for you.

TRUSTED BY ALTON, NH HOMEOWNERS

  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon31
    Verified contractor services reviews

Find Contractors in Alton

Sun-Peak Builders

5.00(
2
)
Approved Pro

Sun-Peak Builders

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Our mission at Sweeney Construction is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Sweeney Construction stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"He was great, great work and got the job done on schedule."

Freddie V on August 2022

Our mission at Sweeney Construction is to continue the growth of our business by doing right by all of our clients. We love seeing that one of a kind smile on a home owners face at the end of a project! Sweeney Construction stacks up with the competition and surpasses it with competitive prices, second to none workmanship and a prompt/responsive team! We give you quality that you can measure, and a finished product that will enhance your home forever. Call us today!

"He was great, great work and got the job done on schedule."

Freddie V on August 2022


Avatar for Charles Barnett Building Contractors, LLC

Charles Barnett Building Contractors, LLC

3.50(
2
)
Approved Pro

Charles Barnett Building Contractors, LLC

3.50(
2
)
Approved Pro
Customers say: Quality work
25 years of experience
Free onsite estimate

Charles Barnett Building Contractors, LLC, is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 50 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"I hired Barnett as the contractor for a bathroom remodel. We ended up doing much of the running around for materials and the project took more than 3 months and still did not get completed. It also cost significantly more than the original estimate do mostly to poor project management. I would not hire this company for another project."

Jeff L on July 2008

Charles Barnett Building Contractors, LLC, is a locally owned and operated company that values honesty and integrity in all aspects of our business. Our dedicated team of professionals have over 50 years of hands on experience, to provide innovative ideas and suggestions tailored to your projects. Our services are customized to your individual needs, paying close attention to the details of each project that we are involved with. Please feel free to contact us today!

"I hired Barnett as the contractor for a bathroom remodel. We ended up doing much of the running around for materials and the project took more than 3 months and still did not get completed. It also cost significantly more than the original estimate do mostly to poor project management. I would not hire this company for another project."

Jeff L on July 2008


Wagner Home Renovation

4.76(
29
)
Approved Pro

Wagner Home Renovation

4.76(
29
)
Approved Pro
Customers say: True professional
38 local quotes requested
19 years of experience

Remodeling, General Construction and Carpentry. Sole Proprietor, but works with other subcontracted building professionals and uses licensed subcontractors for plumbing and Electrical work. Works hourly and/or provides free estimates, and free consultation. Strong emphasis on quality workmanship, and has solid references. All work is guaranteed accompanied by workmanship warranty specific to the job compleeted. We stand behind our product. Asa is an easy going carpenter who is a serious builder. Family man with three children and a dog. Provides homemade canned goods, jams, and honey for his best clients.

"HVAC system inspection"

Russel C on December 2020

Remodeling, General Construction and Carpentry. Sole Proprietor, but works with other subcontracted building professionals and uses licensed subcontractors for plumbing and Electrical work. Works hourly and/or provides free estimates, and free consultation. Strong emphasis on quality workmanship, and has solid references. All work is guaranteed accompanied by workmanship warranty specific to the job compleeted. We stand behind our product. Asa is an easy going carpenter who is a serious builder. Family man with three children and a dog. Provides homemade canned goods, jams, and honey for his best clients.

"HVAC system inspection"

Russel C on December 2020


Avatar for Horsman Builders

Horsman Builders

5.00(
19
)
Approved Pro

Horsman Builders

5.00(
19
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
86 local quotes requested

We are a full service genral contracting company specializing in all aspects of commercial , residential,industrial construction projects from small to large scale.Most work is performed 'in house" as well as utilizing a tight knit group of sub contractors as needed.

"Company was very good to work with. Great with communication. Needed the job done quite fast and they were able to squeeze me in to get it done for when I needed it."

Jennifer G on November 2023

We are a full service genral contracting company specializing in all aspects of commercial , residential,industrial construction projects from small to large scale.Most work is performed 'in house" as well as utilizing a tight knit group of sub contractors as needed.

"Company was very good to work with. Great with communication. Needed the job done quite fast and they were able to squeeze me in to get it done for when I needed it."

Jennifer G on November 2023


"Good communication and a reasonable price Quality work done in a short amount of time Would definitely hire again"

Don R on July 2025

All construction projects from additions to finish work. We specialize in built-in cabinetry, additions, decks, stairs and all finish trim work. I have 15 years of professional experience. Give us a call and get that project finished!

"Good communication and a reasonable price Quality work done in a short amount of time Would definitely hire again"

Don R on July 2025


"I was very impressed working with this company. Communication was superb right off the bat. We went over the job in detail, and it was completed perfectly. The company is very professional and pays attention to every detail. The price was good too! They also cleaned the area thoroughly and my property looks exquisite. Hire this company with confidence. Thank you!"

John C on October 2025

Good work guarantee. I love making our customer's happy

"I was very impressed working with this company. Communication was superb right off the bat. We went over the job in detail, and it was completed perfectly. The company is very professional and pays attention to every detail. The price was good too! They also cleaned the area thoroughly and my property looks exquisite. Hire this company with confidence. Thank you!"

John C on October 2025


Avatar for Anything & Everything Home Improvement LLC

Anything & Everything Home Improvement LLC

4.83(
59
)
Approved Pro

Anything & Everything Home Improvement LLC

4.83(
59
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
37 local quotes requested

Anything & Everything Home Improvement's Mission is to provide customer's great service in every Home Improvement they are looking to have done. We are your Home Improvement specialists! One call to complete every home project! From a small remodel service to building you your dream home! We offer free estimates!

"Jesse and his veteran crew of subs built a large log home for us. These are tricky homes to build. Any unexpected events were handled professionally. We plan to hire him again to renovate the unfinished basement."

Jennifer G on May 2022

Anything & Everything Home Improvement's Mission is to provide customer's great service in every Home Improvement they are looking to have done. We are your Home Improvement specialists! One call to complete every home project! From a small remodel service to building you your dream home! We offer free estimates!

"Jesse and his veteran crew of subs built a large log home for us. These are tricky homes to build. Any unexpected events were handled professionally. We plan to hire him again to renovate the unfinished basement."

Jennifer G on May 2022


Avatar for MMP Construction Inc

MMP Construction Inc

4.70(
191
)
Approved Pro

MMP Construction Inc

4.70(
191
)
Approved Pro
Customers say: Super punctual
280 local quotes requested
21 years of experience

At MMP Construction we pride ourselves on delivering great craftsmanship, and providing the best customer experience at competitive prices. From complete remodeling and additions, to snow removal and minor roof repairs we also specialize in 203k and home style loans, MMP Construction will complete the job in a timely and professional manner. We understand the investments our customers are making and we proactively provide updated timelines and information regarding the job, from start to finish.

"We needed a skylight installed in our bathroom, and MMP did an excellent job--we are very happy with it! The team was friendly and worked quickly and efficiently to get it done before it got dark, and the quality of their work was excellent. Matt was very friendly and nice to communicate with as well, and always responded right away. I highly recommend MMP Construction to anyone looking for great quality work and excellent customer service."

Nathan S on November 2022

At MMP Construction we pride ourselves on delivering great craftsmanship, and providing the best customer experience at competitive prices. From complete remodeling and additions, to snow removal and minor roof repairs we also specialize in 203k and home style loans, MMP Construction will complete the job in a timely and professional manner. We understand the investments our customers are making and we proactively provide updated timelines and information regarding the job, from start to finish.

"We needed a skylight installed in our bathroom, and MMP did an excellent job--we are very happy with it! The team was friendly and worked quickly and efficiently to get it done before it got dark, and the quality of their work was excellent. Matt was very friendly and nice to communicate with as well, and always responded right away. I highly recommend MMP Construction to anyone looking for great quality work and excellent customer service."

Nathan S on November 2022


Avatar for Murphy's Carpentry Services

Murphy's Carpentry Services

5.00(
7
)

Murphy's Carpentry Services

5.00(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

I'm owner and creator of Murphy's Carpentry Services. I've been building since 1998. I run a local family business that's registered and insured. We offer jobs that fall under this category: new build houses, garages, shops, additions, decks, duplex, condo, pavilion, wood floors, remodels. for more pictures, reviews and updates please visit our business page on Facebook Murphy's Carpentry Services. EDIT: we have been getting called a lot for prefab metal car ports. if that's what you're interested in we are sorry but you need to reach out to one of those companies. We are a carpentry company we can build you a garage if you'd like https://m.facebook.com/Murphys-Carpentry-Services-365325097400063/?ref=bookmarks

"I was incredibly impressed...superior workmanship, they kept the worksite clean, great value...but most importantly, these are great people!"

Bill L on April 2024

I'm owner and creator of Murphy's Carpentry Services. I've been building since 1998. I run a local family business that's registered and insured. We offer jobs that fall under this category: new build houses, garages, shops, additions, decks, duplex, condo, pavilion, wood floors, remodels. for more pictures, reviews and updates please visit our business page on Facebook Murphy's Carpentry Services. EDIT: we have been getting called a lot for prefab metal car ports. if that's what you're interested in we are sorry but you need to reach out to one of those companies. We are a carpentry company we can build you a garage if you'd like https://m.facebook.com/Murphys-Carpentry-Services-365325097400063/?ref=bookmarks

"I was incredibly impressed...superior workmanship, they kept the worksite clean, great value...but most importantly, these are great people!"

Bill L on April 2024


N. Bresse Building LLC

No reviews yet

N. Bresse Building LLC

No reviews yet

We are fully insured 10 years in the business. We are honest, highly trained and knowledgeable on guiding you in the right direction on your next project. We have a deep understanding of woodworking techniques and principles to make sure your next project is everything you have been wanting. We do from finish carpentry to framing from home remodels to smaller remodel project like closest or one room make overs. We specialize in custom decks and enjoy adding finishing touches to enhance the overall appearance of a space/projects.

We are fully insured 10 years in the business. We are honest, highly trained and knowledgeable on guiding you in the right direction on your next project. We have a deep understanding of woodworking techniques and principles to make sure your next project is everything you have been wanting. We do from finish carpentry to framing from home remodels to smaller remodel project like closest or one room make overs. We specialize in custom decks and enjoy adding finishing touches to enhance the overall appearance of a space/projects.

...
Showing 1-10 of 132
Unfinished Carpentry questions, answered by experts

Yes, columns can be used to replace a load-bearing wall. However, you will need to use a support beam as well. Using columns can be a great way to provide additional support for large areas and improve your home's aesthetics.

Not all porch columns are load-bearing, though they can be. Some porch columns are simply decorative. There are ways to identify a load-bearing column, like looking for visible seams and a foundation. Also, check to see if the column directly enters the ground. In some porch installations, a contractor will excavate a hole to install a column into the earth along with a buried cement base for stability.

Cupping and bowing are both types of wood warping, but they affect the board in different ways. Cupping happens when the edges of a board curl upward or downward, creating a concave or convex shape across its width. Conversely, bowing is when the board curves along its length, forming a gentle arc. 

Framing is the shell of the house. It includes several steps, including studs, plumbing, and electricity. A professional will ensure the wall frame is secured for the house’s structural integrity. 

Framing prices change depending on the material and whether the wall is load-bearing. Most contractors use wood to frame a home, but metal is another popular choice.

There are approximately 5.33 board feet in a 2x4. You can use the board foot calculator in this article to easily find the answer. A 2x4 is 2 inches of thickness by 4 inches of width, so you need to find the length, with 8 feet being the most common. You’d use the calculator here to multiply 2 times 4 times 8, and then divide by 12, arriving at a total of 5.33 board feet. 

The Alton, NH homeowners’ guide to contractor services

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