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Find Basement remodelers in Portland

Avatar for First Chair Carpentry, LLC

First Chair Carpentry, LLC

4.83(
3
)
Approved Pro

First Chair Carpentry, LLC

4.83(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
26 years of experience

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


Williams Construction, New Construction & Remodeling, Inc.

3.50(
3
)
Approved Pro

Williams Construction, New Construction & Remodeling, Inc.

3.50(
3
)
Approved Pro
21 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 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 consumer's 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


Knoth Construction

5.00(
2
)
Approved Pro

Knoth Construction

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

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


Merry and Son Construction

5.00(
1
)
Approved Pro

Merry and Son Construction

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

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


Avatar for Bavineau Enterprises

Bavineau Enterprises

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Bavineau Enterprises

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

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


Avatar for Owens Corning Basement Finishing System

Owens Corning Basement Finishing System

4.83(
335
)
Approved Pro

Owens Corning Basement Finishing System

4.83(
335
)
Approved Pro
Super Service Award
Customers say: True professional
137 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.

"This company is wonderful. They were prompt, the supplies that they used were quality materials, the contractor that worked in our basement was professional, friendly and and so helpful. The work was completed as scheduled and the basement is gorgeous. The family room looks better than I ever thought it could look. We are so happy with work that was done. The family room looks and feels so much better. The insulation that was used has made the room feel warm and pleasant. The family room that we had before was just a room. The family room that Owens Corning created for us is a very special room that we truly enjoy being in. I would recommend using Owens Corning Basement Systems to anyone."

Lyn D 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.

"This company is wonderful. They were prompt, the supplies that they used were quality materials, the contractor that worked in our basement was professional, friendly and and so helpful. The work was completed as scheduled and the basement is gorgeous. The family room looks better than I ever thought it could look. We are so happy with work that was done. The family room looks and feels so much better. The insulation that was used has made the room feel warm and pleasant. The family room that we had before was just a room. The family room that Owens Corning created for us is a very special room that we truly enjoy being in. I would recommend using Owens Corning Basement Systems to anyone."

Lyn D on January 2026


Avatar for East Coast Vinyl LLC

East Coast Vinyl LLC

4.67(
6
)
Approved Pro

East Coast Vinyl LLC

4.67(
6
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

we are exterior remodeling specialist!! we focus on home restorations and Updates we specialize in VINYL SIDING with Azec trim. we Install NEW WINDOWS and REPLACEMENT WINDOWS. ASK US ABOUT?? FREE GUTTERS I have 30+ yrs experience in home remodeling and repair. I build decks kitchens bathrooms ceramic tile work and so on.

"David was wonderful, he was great at explaining his process and the overall time for the project. I would/will be hiring him again in the future."

Andrew L on March 2025

we are exterior remodeling specialist!! we focus on home restorations and Updates we specialize in VINYL SIDING with Azec trim. we Install NEW WINDOWS and REPLACEMENT WINDOWS. ASK US ABOUT?? FREE GUTTERS I have 30+ yrs experience in home remodeling and repair. I build decks kitchens bathrooms ceramic tile work and so on.

"David was wonderful, he was great at explaining his process and the overall time for the project. I would/will be hiring him again in the future."

Andrew L on March 2025


Avatar for Pineland Property Maintenance LLC

Pineland Property Maintenance LLC

5.00(
5
)
Approved Pro

Pineland Property Maintenance LLC

5.00(
5
)
Approved Pro
8 years of experience
Free onsite estimate

We invite 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. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

We invite 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. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you


DryLock Systems

4.77(
47
)
Approved Pro

DryLock Systems

4.77(
47
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
41 years of experience

Here at Drylock Systems we strongly believe in delivering the highest quality service at an affordable price. We have over 35 years of construction experience. All of our work is 100% guaranteed. We are proud to be accepted as a National Waterproof Members of America certified contractor. We now accept all major credit cards.

"Phenomenal! Knowledge, adaptability, options, great crew and quick service! Solved a difficult drainage problem in an existing home for under the estimate. Can't recommend more highly!"

Assunta K on April 2021

Here at Drylock Systems we strongly believe in delivering the highest quality service at an affordable price. We have over 35 years of construction experience. All of our work is 100% guaranteed. We are proud to be accepted as a National Waterproof Members of America certified contractor. We now accept all major credit cards.

"Phenomenal! Knowledge, adaptability, options, great crew and quick service! Solved a difficult drainage problem in an existing home for under the estimate. Can't recommend more highly!"

Assunta K on April 2021


"A&D was very responsive - came out quickly to view the project and completed the job very timely"

Nancy D on January 2025

Locally owned & operated since 1978, fully licensed & insured. Uses licensed subs for skilled trades. Discounts available for Angie's list members. Free estimates upon request, no travel charges.

"A&D was very responsive - came out quickly to view the project and completed the job very timely"

Nancy D on January 2025

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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.

The Portland, ME homeowners’ guide to basement remodelings

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