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    Verified basement remodels reviews

Find Basement remodelers in Portsmouth

Avatar for Total Basement Finishing, a Blackdog Affiliate

Total Basement Finishing, a Blackdog Affiliate

5.00(
1
)
Approved Pro

Total Basement Finishing, a Blackdog Affiliate

5.00(
1
)
Approved Pro
25 local quotes requested
36 years of experience

Total Basement Finishing, A Blackdog Affiliate serves the Greater Lowell area of Massachusetts and New Hampshire with basement finishing and basement remodeling. Finishing your previously unused basement gives you additional space in your home and so much more. It offers you a rare opportunity to exploit your creative side through the design process. And ultimately, you will transform a dark, uninviting space into a room that adds value and comfort to your home, making it an integral part of your family’s daily life.

Total Basement Finishing, A Blackdog Affiliate serves the Greater Lowell area of Massachusetts and New Hampshire with basement finishing and basement remodeling. Finishing your previously unused basement gives you additional space in your home and so much more. It offers you a rare opportunity to exploit your creative side through the design process. And ultimately, you will transform a dark, uninviting space into a room that adds value and comfort to your home, making it an integral part of your family’s daily life.


Avatar for ACQ Home Improvement

ACQ Home Improvement

4.94(
8
)
Approved Pro

ACQ Home Improvement

4.94(
8
)
Approved Pro
Customers say: Quick response
25 years of experience
Free onsite estimate

With over 20 yrs of experience, ACQ Home Improvement is dedicated to providing our customers with the best quality at a great price. In addition, we are here to build relationships with our customers and communities and provide our employees with a great place to work. We look forward to working with you!

"Jeremy and crew are professional, and expert at what they do. Very customer focused and back their work 100 percent. It was a pleasure working with them"

Curt C on March 2023

With over 20 yrs of experience, ACQ Home Improvement is dedicated to providing our customers with the best quality at a great price. In addition, we are here to build relationships with our customers and communities and provide our employees with a great place to work. We look forward to working with you!

"Jeremy and crew are professional, and expert at what they do. Very customer focused and back their work 100 percent. It was a pleasure working with them"

Curt C on March 2023


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
4 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


JDL Building & Remodeling of New England, LLC

4.89(
11
)
Approved Pro

JDL Building & Remodeling of New England, LLC

4.89(
11
)
Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
24 years of experience

We are a full service General Contracting Company who can manage your project from conception to completion. This includes design, permitting and construction. Athough we specialize in providing turn-key services, we can also be contracted to perform any trade service or scope or work. Jason Lajeunesse, owner of JDL Building & Remodeling of New England, LLC, is a second generation building contactor with over 10 years of general contracting and trade experience. This experience and our strong Estimating and Project Planning Skills allow us to deliver our projects on budget and schedule.

"If you are looking for someone who is really going to work with you then JDL is for you. Jason tries extremely hard to listen to all requests and plans you might have. I would call him again if we had another project going on."

James W on August 2011

We are a full service General Contracting Company who can manage your project from conception to completion. This includes design, permitting and construction. Athough we specialize in providing turn-key services, we can also be contracted to perform any trade service or scope or work. Jason Lajeunesse, owner of JDL Building & Remodeling of New England, LLC, is a second generation building contactor with over 10 years of general contracting and trade experience. This experience and our strong Estimating and Project Planning Skills allow us to deliver our projects on budget and schedule.

"If you are looking for someone who is really going to work with you then JDL is for you. Jason tries extremely hard to listen to all requests and plans you might have. I would call him again if we had another project going on."

James W on August 2011


Avatar for True North Contracting

True North Contracting

4.76(
82
)
Approved Pro

True North Contracting

4.76(
82
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
20 years of experience

At True North Contracting, LLC, abd True North Contracting Plus LLC :we serve the tri-state area, providing the best quality for the best price. We never mark up materials. Your total satisfaction is our ultimate goal. A plus rated with BBB. EPA certified renovator.

"Costas was amazing. Very transparent and his workmanship is top notch. Throughout the project he kept us on the loop and walked us through step by step what his plan was. "

Anthony S on September 2025

At True North Contracting, LLC, abd True North Contracting Plus LLC :we serve the tri-state area, providing the best quality for the best price. We never mark up materials. Your total satisfaction is our ultimate goal. A plus rated with BBB. EPA certified renovator.

"Costas was amazing. Very transparent and his workmanship is top notch. Throughout the project he kept us on the loop and walked us through step by step what his plan was. "

Anthony S on September 2025


Ram Construction & Home Remodeling

4.08(
17
)
Approved Pro

Ram Construction & Home Remodeling

4.08(
17
)
Approved Pro
Customers say: Quality work
46 years of experience
Free onsite estimate

RAM Construction is an owner/operator business. My customers expect to see me on the job, not a sub. I truly enjoy what I do for a living and am fortunate enough to live that dream.

"We hired Rich with RAM Construction to complete a major renovation to our property. With my husband being a contractor himself but having no time to do the work, this was a big step to take on our behalf and we needed a contractor we could trust to show up and complete this major renovation. Rich took the job on knowing full well what challenges may exist with working at another contractorâ s home. Rich was completely open to my husbandâ s suggestions as well as being able to provide his own ideas on how to complete the project. Even though we had a contract Rich has been very accommodating with allowing us to veer outside of the project specs. Rich has been great to work with and we recommend him 100% to anyone who may be looking for a great Contractor."

Nancy C on March 2020

RAM Construction is an owner/operator business. My customers expect to see me on the job, not a sub. I truly enjoy what I do for a living and am fortunate enough to live that dream.

"We hired Rich with RAM Construction to complete a major renovation to our property. With my husband being a contractor himself but having no time to do the work, this was a big step to take on our behalf and we needed a contractor we could trust to show up and complete this major renovation. Rich took the job on knowing full well what challenges may exist with working at another contractorâ s home. Rich was completely open to my husbandâ s suggestions as well as being able to provide his own ideas on how to complete the project. Even though we had a contract Rich has been very accommodating with allowing us to veer outside of the project specs. Rich has been great to work with and we recommend him 100% to anyone who may be looking for a great Contractor."

Nancy C on March 2020


Avatar for Owens Corning Basement Finishing System

Owens Corning Basement Finishing System

4.83(
331
)
Approved Pro

Owens Corning Basement Finishing System

4.83(
331
)
Approved Pro
Super Service Award
Customers say: True professional
152 local quotes requested
35 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.

"Very happy with the basement. Work actually started 2-3 weeks earlier than expected. We were told the job would last about 4-5 weeks. Basement work was completed in about 4 weeks. Very professional. No worries about whether the plumber or electrician would be available. We discussed small changes to the layout (e.g., where the sink in the bathroom would be located) and everyone was very accommodating."

Thomas H on November 2025

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.

"Very happy with the basement. Work actually started 2-3 weeks earlier than expected. We were told the job would last about 4-5 weeks. Basement work was completed in about 4 weeks. Very professional. No worries about whether the plumber or electrician would be available. We discussed small changes to the layout (e.g., where the sink in the bathroom would be located) and everyone was very accommodating."

Thomas H on November 2025


"We bought our first home this year and absolutely love it, but we quickly learned it needed more TLC than we realized. We could see rot on our exterior trim and clapboards, plus a missing gable vent. From the very beginning, Shawn impressed us. His estimate was incredibly thorough, and it was clear he’s a true professional. As new homeowners, we felt confident putting our home in his hands. We are so fortunate we hired him. Shawn showed up early, worked late, and demonstrated meticulous attention to detail in everything he did. When we discovered the rot was far more extensive than we thought, he never made us feel stressed or overwhelmed—he walked us through our options, offered solutions, and helped us make the right decisions for our home. The quality of his work speaks for itself, but just as important, his communication, reliability, and integrity made the experience exceptional. We will be working with Shawn for all of our home’s needs. We actually missed him when he left ! "

Rachelle J on November 2025

603-702-0022 . . . .

"We bought our first home this year and absolutely love it, but we quickly learned it needed more TLC than we realized. We could see rot on our exterior trim and clapboards, plus a missing gable vent. From the very beginning, Shawn impressed us. His estimate was incredibly thorough, and it was clear he’s a true professional. As new homeowners, we felt confident putting our home in his hands. We are so fortunate we hired him. Shawn showed up early, worked late, and demonstrated meticulous attention to detail in everything he did. When we discovered the rot was far more extensive than we thought, he never made us feel stressed or overwhelmed—he walked us through our options, offered solutions, and helped us make the right decisions for our home. The quality of his work speaks for itself, but just as important, his communication, reliability, and integrity made the experience exceptional. We will be working with Shawn for all of our home’s needs. We actually missed him when he left ! "

Rachelle J on November 2025


Avatar for Edgewood Drywall Services

Edgewood Drywall Services

4.81(
35
)
Approved Pro

Edgewood Drywall Services

4.81(
35
)
Approved Pro
Customers say: True professional
69 local quotes requested
25 years of experience

Edgewood Drywall Services invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. Give us a call for a free estimate!

"The team arrived as promised and was highly communicative and professional. They did a great job and I would most definitely call them in the future for any drywall needs!"

Kimmie R on November 2025

Edgewood Drywall Services invites you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. Give us a call for a free estimate!

"The team arrived as promised and was highly communicative and professional. They did a great job and I would most definitely call them in the future for any drywall needs!"

Kimmie R on November 2025


Avatar for HONEYCOMB CONSTRUCTION, LLC

HONEYCOMB CONSTRUCTION, LLC

4.86(
7
)
Approved Pro

HONEYCOMB CONSTRUCTION, LLC

4.86(
7
)
Approved Pro
30 local quotes requested
3 years of experience

HONEYCOMB CONSTRUCTION is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. HONEYCOMB CONSTRUCTION is a leader in providing our customers with the highest quality products and craftsmanship 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!

"Honeycomb helped save our house. As they were replacing our deck, they discovered rot and quickly removed and replaced all the bad material. They also discovered that we had a termite infestation. The issue was in the structure of the house. They assured us everything would be fine and efficiently dispatched all the rot and talked us through next steps with detailed recommendations, involving other contractors. The additional charge to remove the rot was minimal and I would have gladly paid 10x for the security of having a safe house. And just look at how beautifully it turned out. The photos really don't do it justice, when you get to sit out there enjoying a coffee in the morning or actually having a family gathering. It is such a game changer meeting space. Also, and it might seem like a little thing, but its the details that matter. It was really hard for me to get on my deck as a physically handicapped person. Taylor made it easy for me to go outside alone. I love you guys 11/10"

Donna M on March 2025

HONEYCOMB CONSTRUCTION is dedicated to providing our customers with the best quality and craftsmanship. We are here to build relationships with our customers and communities and to provide our employees with a great place to work. HONEYCOMB CONSTRUCTION is a leader in providing our customers with the highest quality products and craftsmanship 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!

"Honeycomb helped save our house. As they were replacing our deck, they discovered rot and quickly removed and replaced all the bad material. They also discovered that we had a termite infestation. The issue was in the structure of the house. They assured us everything would be fine and efficiently dispatched all the rot and talked us through next steps with detailed recommendations, involving other contractors. The additional charge to remove the rot was minimal and I would have gladly paid 10x for the security of having a safe house. And just look at how beautifully it turned out. The photos really don't do it justice, when you get to sit out there enjoying a coffee in the morning or actually having a family gathering. It is such a game changer meeting space. Also, and it might seem like a little thing, but its the details that matter. It was really hard for me to get on my deck as a physically handicapped person. Taylor made it easy for me to go outside alone. I love you guys 11/10"

Donna M on March 2025

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Basement Remodel questions, answered by experts

The average cost of remodeling a basement is $30 to $75 per square foot. If your space is unfinished and looks like it may need more help, use the higher number when calculating your estimated basement remodeling costs. A good rule of thumb is to add an additional 20% to the top of your estimate to cover any “what if” situations.

While bathrooms and kitchens are nearly equal in terms of renovation difficulty, kitchens are the most challenging. Kitchen design, layout, electrical, and plumbing needs all depend on each other for the success of the entire project, and mistakes early in the project can cause trouble later on.

Professional remodelers streamline the process, manage permits, and handle renovations efficiently—significantly mitigating risk while maintaining standards.

You technically can paint wires in a basement ceiling, but there are several important safety and code considerations. It's safe to paint non-metallic sheathed cable as long as the labeling remains visible. You can also paint low-voltage wires and conduit and junction boxes to help them blend into your basement. 

However, you should not paint damaged or deteriorated wiring is a fire hazard because it poses a fire hazard. The same goes for painting over high-heat wires that connect to heat-generating appliances or systems. Be sure to avoid painting multiple coats onto any wires, as that traps heat and poses fire risks.

Unless you have extensive experience in construction work, remodeling a basement is best left to a professional. There are several tasks associated with this project that require exact precision, including:

  • Replacing insulation 

  • Replacing carpet or other flooring 

  • Adding heating and cooling

  • Adjusting or adding walls and doors

  • Altering or adding plumbing elements

If any of these elements is done incorrectly, it could severely impact the quality of your basement remodel and be dangerous. Changing a basement often comes with code safety requirements, like egress windows and proper ventilation. Therefore, leaving it up to a professional is often the best decision.

The Portsmouth, NH homeowners’ guide to basement remodels

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

What do you need done? We’ll find top pros.
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