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Basement remodelers in Portland
As a skilled, licensed, and insured general contractor in AREA, First Chair Carpentry, LLC is at your service for projects large and small. From quick household fixes to major property renovations, BUSINESS provides thorough, efficient service every step of the way. All you have to do is sit back, relax, and enjoy the end results.
"I love how communicative they are. It has been a great experience. Good value."
Mitch F on December 2017
As a skilled, licensed, and insured general contractor in AREA, First Chair Carpentry, LLC is at your service for projects large and small. From quick household fixes to major property renovations, BUSINESS provides thorough, efficient service every step of the way. All you have to do is sit back, relax, and enjoy the end results.
"I love how communicative they are. It has been a great experience. Good value."
Mitch F on December 2017
We provide construction expertise and a familiarity with the home improvement marketplace. You provide your vision and plans. Together we create beautiful spaces!
"We hired this company because Arne seemed trustworthy after meeting him in person, and because their rates were reasonable. They had pending previous engagements but were able to squeeze our project in. They renovated the kitchen and bath of our upstaris apartment. It looks gorgeous now! Will hire again."
RYE M on March 2017
We provide construction expertise and a familiarity with the home improvement marketplace. You provide your vision and plans. Together we create beautiful spaces!
"We hired this company because Arne seemed trustworthy after meeting him in person, and because their rates were reasonable. They had pending previous engagements but were able to squeeze our project in. They renovated the kitchen and bath of our upstaris apartment. It looks gorgeous now! Will hire again."
RYE M on March 2017
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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.
"They don?t answer messages through Angi and they don?t answer the phone. No voicemail either."
Christine F on March 2022
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to 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.
"They don?t answer messages through Angi and they don?t answer the phone. No voicemail either."
Christine F on March 2022
Diamond Cut Builders, LLC 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.
"Jack and his team made a reasonable bid for my small kitchen project in the West End of Portland. It was an unusual project in that we only had 1 month to complete the work. Jack delivered the work on time and the work is of high quality. As most projects go we had some small unexpected issues, but Jack communicated well and was able to navigate them and still the project on time. I would highly recommend him and his team for your home renovation projects!"
Alexis T on April 2025
Diamond Cut Builders, LLC 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.
"Jack and his team made a reasonable bid for my small kitchen project in the West End of Portland. It was an unusual project in that we only had 1 month to complete the work. Jack delivered the work on time and the work is of high quality. As most projects go we had some small unexpected issues, but Jack communicated well and was able to navigate them and still the project on time. I would highly recommend him and his team for your home renovation projects!"
Alexis T on April 2025
At Knoth Construction we make dreams come true. With over 20 years of experience, this phrase has become more than a catchy slogan. It's simply the way we do business. Knoth Construction does everything from additions, remodels to tile and painting to small commercial build outs. We offer quality, professionalism and competitive pricing for every job, regardless of project size. Customer satisfaction is our primary goal. Knoth Construction looks forward to making your dream a reality.
"He does fantastic work all around. -Elaine"
Elaine . on December 2019
At Knoth Construction we make dreams come true. With over 20 years of experience, this phrase has become more than a catchy slogan. It's simply the way we do business. Knoth Construction does everything from additions, remodels to tile and painting to small commercial build outs. We offer quality, professionalism and competitive pricing for every job, regardless of project size. Customer satisfaction is our primary goal. Knoth Construction looks forward to making your dream a reality.
"He does fantastic work all around. -Elaine"
Elaine . on December 2019
With over 12 years of experience in General Construction, Merry and Son Construction, 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!
"No comments."
Alyssa x on May 2021
With over 12 years of experience in General Construction, Merry and Son Construction, 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!
"No comments."
Alyssa x on May 2021
Here at Bavineau Enterprises we have a main focus of quality over quantity. We are driven by integrity, good communication, and professionalism. With over 15 years of experience there is no job that we shy away from when it comes to your home project needs. Please call today for a free estimate we look forward to earning your life long business
Here at Bavineau Enterprises we have a main focus of quality over quantity. We are driven by integrity, good communication, and professionalism. With over 15 years of experience there is no job that we shy away from when it comes to your home project needs. Please call today for a free estimate we look forward to earning your life long business
Our mission at APEX Builders LLC 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! APEX Builders LLC 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!
"I hired APEX builders for an additional bathroom at one of my properties and I could not be happier. The bathroom came out beautiful. Billy was super easy to work with and his communication was the best part. I always knew what was going on, where we were in the process and what was next. Highly recommended for any project. I will be using them again."
Bill S on January 2025
Our mission at APEX Builders LLC 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! APEX Builders LLC 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!
"I hired APEX builders for an additional bathroom at one of my properties and I could not be happier. The bathroom came out beautiful. Billy was super easy to work with and his communication was the best part. I always knew what was going on, where we were in the process and what was next. Highly recommended for any project. I will be using them again."
Bill S on January 2025
Lux Renovations, LLC 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 16 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.
"We were very impressed by Lux Renovations from the very beginning. The design and quoting process for our basement gym project was well conducted and professional, easy to follow, and thorough. Unlike other contractors we had an estimate the project, a detailed drawing, selected all materials and colors, and had a detailed cost and timeline while the Lux representative was at our house. The Project Management and build team was excellent to work with. Their work was top notch, clean, and completed on time and budget. We couldn't be happier with our basement home gym."
Raymond A on June 2025
Lux Renovations, LLC 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 16 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.
"We were very impressed by Lux Renovations from the very beginning. The design and quoting process for our basement gym project was well conducted and professional, easy to follow, and thorough. Unlike other contractors we had an estimate the project, a detailed drawing, selected all materials and colors, and had a detailed cost and timeline while the Lux representative was at our house. The Project Management and build team was excellent to work with. Their work was top notch, clean, and completed on time and budget. We couldn't be happier with our basement home gym."
Raymond A on June 2025
Were a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!
"Lexi was professional and had great ideas. I was very happy with his work and will be using his company for future projects."
Niki P on February 2025
Were a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. Our services are customized to the individual project, paying close attention to the details of each project that we're involved with. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!
"Lexi was professional and had great ideas. I was very happy with his work and will be using his company for future projects."
Niki P on February 2025
FAQs for basement remodeling projects in Portland, ME
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.
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