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Everlast Wall Panels
Insulated Wall Panels
Premier And Linen Ceiling Tiles: No-sag Warranty
Thermal Dry Floor Tiles
Millcreek Faux Wood Flooring
Sunhouse Window Wells
Everlast Window Replacement
Rockwell Egress Window

Before and After Pictures from Portsmouth
A Large Painted Basement in Portsmouth

A Large Painted Basement in Portsmouth

Before After
A Large Painted Basement in Portsmouth A Large Painted Basement in Portsmouth

This basement was a large project, where we finished 1,600 square feet of space. We used our grey ThermalElite plank flooring, paintable wall system, and linen ceiling tiles.

Basement Bar In Portsmouth

Basement Bar In Portsmouth

Before After
Basement Bar In Portsmouth Basement Bar In Portsmouth

This basement was transformed into an entertainment area with a beautiful wet bar.

A Large Open Space in Portsmouth, NH

A Large Open Space in Portsmouth, NH

Before After
A Large Open Space in Portsmouth, NH A Large Open Space in Portsmouth, NH

This is a before-and-after of our latest project in Portsmouth, New Hampshire. We took this unfinished space and created a warm, dry space the entire family could use.

Company Awards
Recipient of the 2019 Torch Awards for Marketplace Ethics
We are thrilled to announce that Blackdog Builders, Inc. has been awarded the 2019 Torch Award for Marketplace Ethics by... [Read more]
2023 Impact Award
This award is presented to the Dealers in the Contractor Nation network who go above and beyond to uplift their... [Read more]
2005 Better Business Bureau Torch Award for Market Place Ethics
“The 'BBB Torch Award’ is an annual awards program to gain public recognition for businesses and organizations that maintain a... [Read more]
More Awards

Experienced Basement Remodeling Company Serving Portsmouth, NH

Happy Customers Surrounding Portsmouth, NH
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Basement Finishing Contractor in Portsmouth, NH

At Total Basement Finishing, A Blackdog Affiliate, we don’t just adhere to the highest industry standards — we constantly strive to be the industry leader in all basement finishing and basement remodeling services we provide to our customers in Portsmouth, New Hampshire.

We specialize in turning ordinary, unfinished basements into extraordinary living spaces using the Total Basement Finishing™ system. With this state-of-the-art system and a wide range of high-quality remodeling products, you can count on our team to bring innovation, style, and functionality to your lower level.

Whether you want to add a guest suite, home gym, basement bar, or something else to your home, we have you covered. Contact us at 1-603-458-7962 or click below to schedule a free estimate for our basement remodeling services. We’re proud to offer basement finishing in Portsmouth, NH and throughout Rockingham County.

Portsmouth basement finishing expert

With more than 30 years of experience in the basement finishing industry, we understand the untapped potential an unfinished basement offers. Our dedicated team is committed to providing comprehensive basement remodeling solutions and techniques utilized by the renowned Total Basement Finishing network. We are a one-stop shop for insulated and waterproof basement wall panels, drop ceiling tiles, waterproof flooring, and more.

When you partner with Total Basement Finishing, A Blackdog Affiliate to transform your basement, you’ll work closely with our team to design your dream space. Our team will help you identify your needs and wants, and help you determine what works best for your home. Whether you’re looking to build a home office, entertainment center, small home gym, or something else, we have the skills and expertise to bring your vision to life.

Our Portsmouth basement remodeling solutions

  • Basement wall panels
  • Insulated floor decking
  • Basement floor tiles
  • Plank basement flooring
  • Finished wall restoration
  • Basement dehumidifier
  • Drop ceiling tiles
  • Basement doors
  • Basement windows & window wells
  • Trim & crown molding
  • Staircases & railings
  • And more!

Why choose Total Basement Finishing, A Blackdog Affiliate to remodel your basement?

  • Total Basement Finishing System: Our innovative basement finishing system goes beyond the ordinary, offering a durable, efficient, and stylish solution tailored for basement environments. From moisture-resistant, paintable wall panels to waterproof flooring options, our products are engineered to conquer common challenges in below-grade spaces, ensuring a seamless and reliable transformation.
  • Customized Solutions: Our Portsmouth basement finishing experts understand that every basement is unique, and so are the needs of our clients. We work closely with you to create a customized design that aligns with your vision, lifestyle, and budget. Whether you want to create a home office, craft room, home gym, or something else, we have the expertise to bring your vision to life.
  • Comprehensive Services: Our skilled team is adept at handling all aspects of basement finishing. From the initial design consultation to the finishing touches, you can trust us to handle every detail!

Schedule a free basement finishing estimate today!

With Total Basement Finishing, A Blackdog Affiliate, your basement can be more than just a storage space. Contact us today to schedule a free estimate and learn how we can turn your basement into a stylish and functional extension of your home. Call 1-603-458-7962 or click below to get started!

We proudly serve New Hampshire homeowners in Portsmouth and throughout Rockingham County.

Case Studies From Portsmouth
A
Homeowners in Portsmouth, New Hampshire, contacted us earlier in the year. They have been looking into finishing their space for almost a year and...
Home
This young couple in Portsmouth called TBF to finish an L shaped basement which they wanted to turn into a home office and family room. Adding a...
Job Stories From Portsmouth, NH
Finishing a Large Space in Portsmouth

A family in Portsmouth, New Hampshire, decided to finish their sizeable basement to be used as a gym space and play area for their kids. They originally began looking into this a year ago, but after meeting with another company they weren't interested in, they took a small break. Now, they are ready to work with us to make an amazing space. 

We finished a total of 1,600 square feet of basement using a paintable basement system and our linen ceiling tiles. We added all new LED lights, decorative post surrounds, and electrical baseboard heat. We completed the space with our ThermalDry Elite plank flooring in grey.

Finishing a Large Space in Portsmouth - Photo 1
Work Requests From Portsmouth, NH
Project Location: Portsmouth, NH
I would like to finish my basement and I would like to talk to someone about the process and the pricing please. Thank you
Project Location: Portsmouth, NH
We have an unfinished basement with a lot of potential. We'd like to have the walls sealed and possibly have the ceiling finished. Our goal is a super organized tool room, a nice clean exercise area, and storage space. We're working on getting it cleaned up and we'd love to find someone who can do this project soon.
Project Location: Portsmouth, NH
We have a dated, semi-finished basement that we would like to finish and divide into a few rooms - family room, office, and possibly add 3/4 bathroom. The basement doesn't take on water (that we know of), but it does run very humid in the summer. We are exploring our options and would like to move forward with the project soon.
Project Location: Portsmouth, NH
Would like quote on a partially finished basement: 35' X 15' include flooring, walls & ceiling to be redone! Thanks
Project Location: Portsmouth, NH
We have an addition onto our home done by previous owners they did not finish the basement part so we are looking to get estimate on finishing it
Project Location: Portsmouth, NH
Basement workout room. Email only. Otherwise I will have to call you.
Project Location: Portsmouth, NH
Quote for finish basement
Project Location: Portsmouth, NH
Ceilings are low (6-7 feet), concerns about cost.
Project Location: Portsmouth, NH
We live in a 100 year old home with a damp/wet basement. It's a small space but we'd like to finish it and add a bathroom.
Project Location: Portsmouth, NH
We are looking to add a a master bedroom to our home. We had considered doing a renovation upstairs combining two bedrooms and putting on an addition to replace the absorbed bedroom but we are now thinking it might make more sense to add a bedroom and bath in the basement. We have a partially finished basement. We'd like to make it officially finished and add a bedroom and bathroom down there. Thanks!
Serving the following Portsmouth, NH zip codes
03801, 03802, 03803, 03804
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