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Find Basement remodelers in Alton Bay

Avatar for Envy Homes, LLC

Envy Homes, LLC

4.75(
2
)
•Approved Pro

Envy Homes, LLC

4.75(
2
)
•Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

With over 10 years in the industry, Envy Homes LLC, takes great pride on providing quality service that customers can believe in. We will always see each project through to the customer's satisfaction. Give us a call today for an estimate and to get a General Contractor out to your home or business today!

"They showed up on time each day, were very knowledgeable of the work they performed. Showed up for the quote when we scheduled the first meeting and we were very impressed with the overall experience. The deck they built was spot on and perfect for our needs. They did make some recommendations as to how it would look and work better for us and we went with their decisions and are so happy and impressed. They were very neat about their work and very easy to talk with. I would never use anyone else, and HIGHLY RECOMMEND them for whatever you need. So great to work with."

phyllis p on July 2023

With over 10 years in the industry, Envy Homes LLC, takes great pride on providing quality service that customers can believe in. We will always see each project through to the customer's satisfaction. Give us a call today for an estimate and to get a General Contractor out to your home or business today!

"They showed up on time each day, were very knowledgeable of the work they performed. Showed up for the quote when we scheduled the first meeting and we were very impressed with the overall experience. The deck they built was spot on and perfect for our needs. They did make some recommendations as to how it would look and work better for us and we went with their decisions and are so happy and impressed. They were very neat about their work and very easy to talk with. I would never use anyone else, and HIGHLY RECOMMEND them for whatever you need. So great to work with."

phyllis p on July 2023

Avatar for Owens Corning Basement Finishing System

Owens Corning Basement Finishing System

4.83(
337
)
•Approved Pro

Owens Corning Basement Finishing System

4.83(
337
)
•Approved Pro
Super Service Award
Customers say: True professional
139 local quotes requested
36 years of experience

Lux Renovations, LLC exclusive provider of the Owens Corning Basement Finishing System, has been serving New England homeowners since 2002. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 17 years in a row. Something like that doesn't happen by accident. We are committed to insuring that all of our customers describe their experience with us as "the best contractor experience I ever had". If you are considering a basement finishing project please allow us to show you how Owens Corning has changed the industry with this unique system. A free consultation and design is always available.

"They were fantastic! Very knowledge, caring, and helpful throughout the whole process. Each step of the way; from the beginning to the end, we were happy with the service and work. We love our new basement! Would and already have recommended to family and friend's!"

Ali J on January 2026

Lux Renovations, LLC exclusive provider of the Owens Corning Basement Finishing System, has been serving New England homeowners since 2002. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 17 years in a row. Something like that doesn't happen by accident. We are committed to insuring that all of our customers describe their experience with us as "the best contractor experience I ever had". If you are considering a basement finishing project please allow us to show you how Owens Corning has changed the industry with this unique system. A free consultation and design is always available.

"They were fantastic! Very knowledge, caring, and helpful throughout the whole process. Each step of the way; from the beginning to the end, we were happy with the service and work. We love our new basement! Would and already have recommended to family and friend's!"

Ali J on January 2026

Avatar for Boston Contractor Pro

Boston Contractor Pro

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Boston Contractor Pro

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
5 years of experience
Free onsite estimate

Boston Contractor Pro is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

Boston Contractor Pro is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

DBA Jory D Bailey

4.86(
7
)
•Approved Pro

DBA Jory D Bailey

4.86(
7
)
•Approved Pro
Customers say: Quick response
24 years of experience
Free onsite estimate

17+ year veteran contractor with experience in the design and building of custom homes, all sizes of remodeling jobs and additions, roofing, paving, handyman-type jobs, and much more. Call for details.

"Jory Bailey did excellent quality work. We are thrilled with the result. Jory does top quality work and is highly respected by those who have used his services. The excavation was completed in a timely manner, with accuracy and precision. The grading and excavation is outstanding. It is a pleasure to work with Jory Bailey. I highly recommend his excavation and grading work. "

Janet S on September 2025

17+ year veteran contractor with experience in the design and building of custom homes, all sizes of remodeling jobs and additions, roofing, paving, handyman-type jobs, and much more. Call for details.

"Jory Bailey did excellent quality work. We are thrilled with the result. Jory does top quality work and is highly respected by those who have used his services. The excavation was completed in a timely manner, with accuracy and precision. The grading and excavation is outstanding. It is a pleasure to work with Jory Bailey. I highly recommend his excavation and grading work. "

Janet S on September 2025

Aubrey & Son Home Improvement

5.00(
24
)
•Approved Pro

Aubrey & Son Home Improvement

5.00(
24
)
•Approved Pro
Super Service Award
Customers say: Quick response
3 years of experience
Free onsite estimate

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Job done to highest standards and timely loved working with the crew "

Mark B on December 2025

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Job done to highest standards and timely loved working with the crew "

Mark B on December 2025

Avatar for C Squared Carpentry

C Squared Carpentry

5.00(
1
)
•Approved Pro

C Squared Carpentry

5.00(
1
)
•Approved Pro
2 years of experience
Free onsite estimate

C Squared Carpentry is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"We became aware of a dangerous issue at our camp in NH and C Squared Carpentry came to the rescue!! On short notice and while working with me on doing the job in pieces in order to allow me to spread payments out, C Squared made room in their schedule to come out quickly and make this repair before the NH winter could cause more damage. We are so happy with the work, the professionalism and the excellent customer service. And we are extremely grateful to C Squared!! Highly recommend!!! "

Beth R on January 2026

C Squared Carpentry is a leader in providing our customers with the highest quality service in an honest, efficient, and professional way. Our pledge is to create successful relationships with our customers, employees and community by building trust, treating every project with the utmost integrity and exceeding expectations. We look forward to working with you!

"We became aware of a dangerous issue at our camp in NH and C Squared Carpentry came to the rescue!! On short notice and while working with me on doing the job in pieces in order to allow me to spread payments out, C Squared made room in their schedule to come out quickly and make this repair before the NH winter could cause more damage. We are so happy with the work, the professionalism and the excellent customer service. And we are extremely grateful to C Squared!! Highly recommend!!! "

Beth R on January 2026

Avatar for New England Home Improvements

New England Home Improvements

5.00(
5
)
•Approved Pro

New England Home Improvements

5.00(
5
)
•Approved Pro
Super Service Award
6 years of experience
Free onsite estimate

New England home improvements in locally owned and operated specializing in general remodeling services. We are reliable, easy to work with, and dedicated to customer satisfaction. pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"Micah was a joy to work with, on time, reasonably priced."

Steven G on March 2025

New England home improvements in locally owned and operated specializing in general remodeling services. We are reliable, easy to work with, and dedicated to customer satisfaction. pride myself on my professionalism, as well as my ability to complete every job to the homeowner's total satisfaction. I never leave a job unfinished, or a homeowner not 100% satisfied with my level of service - Call today!

"Micah was a joy to work with, on time, reasonably priced."

Steven G on March 2025

Avatar for Longarone Exteriors

Longarone Exteriors

5.00(
7
)
•Approved Pro

Longarone Exteriors

5.00(
7
)
•Approved Pro
Customers say: Quick response
25 local quotes requested
7 years of experience

Longarone Exteriors Inc has the distinction of being one of the highest rated construction companies. It is our ability to provide clients with exceptional work, while always developing lasting relationships with our clientele, that sets us apart from the crowd. Behind the high ratings from the Better Business Bureau are our team of highly experienced professionals, completely obsessed with the idea of building projects in the most efficient, time effective, and with the lowest cost methods possible, all while providing our clients with the type of experience that has allowed us to grow in good times and bad, since 2019.

"Longarone in the best company that you can have. They are amazing and my house looks great"

Gustavo M on July 2025

Longarone Exteriors Inc has the distinction of being one of the highest rated construction companies. It is our ability to provide clients with exceptional work, while always developing lasting relationships with our clientele, that sets us apart from the crowd. Behind the high ratings from the Better Business Bureau are our team of highly experienced professionals, completely obsessed with the idea of building projects in the most efficient, time effective, and with the lowest cost methods possible, all while providing our clients with the type of experience that has allowed us to grow in good times and bad, since 2019.

"Longarone in the best company that you can have. They are amazing and my house looks great"

Gustavo M on July 2025

Avatar for DALLASTRA CONSTRUCTION LLC

DALLASTRA CONSTRUCTION LLC

5.00(
4
)
•Approved Pro

DALLASTRA CONSTRUCTION LLC

5.00(
4
)
•Approved Pro
Super Service Award
12 years of experience
Free onsite estimate

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Pleasant to deal with. Timely estimate provided. Quality work. I will definitely use them again. "

Carol S on December 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Pleasant to deal with. Timely estimate provided. Quality work. I will definitely use them again. "

Carol S on December 2025

Avatar for New Edge Carpentry LLC

New Edge Carpentry LLC

5.00(
1
)
•Approved Pro

New Edge Carpentry LLC

5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

New Edge Carpentry is your top choice for any of your home building needs. From home remodels to new construction and addition builds we do it all. We pride ourselves on providing great customer service and quality craftmanship that will last the life of your home. Contact our team of professionals to discuss how we can make your dream home a reality today! (603) 960-1345

"prompt, honest, reliable, reasonable charges, good solid work! also importantly, nice guy!!!! THANKS!!!"

Phil M on October 2021

New Edge Carpentry is your top choice for any of your home building needs. From home remodels to new construction and addition builds we do it all. We pride ourselves on providing great customer service and quality craftmanship that will last the life of your home. Contact our team of professionals to discuss how we can make your dream home a reality today! (603) 960-1345

"prompt, honest, reliable, reasonable charges, good solid work! also importantly, nice guy!!!! THANKS!!!"

Phil M on October 2021

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FAQs for basement remodeling projects in Alton Bay, NH

Finishing a basement turns unused square footage into livable space and returns up to 70% of what you spend when you sell your home. Beyond that resale boost, you gain a playroom, home office, or guest suite you can start enjoying right away. That mix of daily comfort and solid return on investment (ROI) makes basement finishing one of the smartest upgrades you can tackle.

In some parts of the country—especially lots on swamps, high water tables, or other wetlands—local codes prohibit basements. Saturated soil puts constant pressure on foundation walls and lets water seep in faster than any sump pump can handle. 

If your property sits on waterlogged ground, building on a slab or crawl space is often safer, more affordable, and code-compliant.

Most basements wrap up in four to eight weeks. Framing takes three to five days, with electrical and plumbing rough-ins following over the next week. Add five days for drywall, two to three for flooring, and another week for paint, trim, and punch-list items. 

Delays can happen if materials run late or your contractor’s calendar is packed, so build in a little cushion when you plan.

Whether a finished basement counts toward your home’s official square footage depends on local rules. Many areas only include below-grade space if it has code-approved egress, fully finished walls, ceilings, and floors, plus consistent heating. 

Check with your local assessor or building department before you start; meeting those standards can affect taxes, appraisals, and resale value.

Building codes require a checklist: dedicated heat and electrical service, a code-approved stairway, and at least one egress window or exterior door. Walls, ceilings, and floors must be fully finished and meet insulation, ventilation, and fire-separation standards. If you add a bedroom, you’ll also need a closet, proper clearances, and safe exits. If you change the layout later, be ready to update the space so every new room still meets today’s code.

The Alton Bay, NH homeowners’ guide to basement remodelings

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

See all articles