The 10 Best Basement Contractors in Newport Beach, CA 2025

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Top 10 Basement Professionals near Newport Beach, CA

Pros with the highest ratings.Pros who have been hired most often.Pros who respond to customers the fastest.Pros who have the most reviews.These are the top 10 pros for your job.

Pros with the highest ratings.Pros who have been hired most often.Pros who respond to customers the fastest.Pros who have the most reviews.These are the top 10 pros for your job.

O T Bay Builders

O T Bay Builders

Excellent 4.9

(41)

Excellent 4.9

(41)

General Contracting, Basement Finishing or Remodeling

132 hires on Thumbtack
Serves Newport Beach, CA

Online now

Larry W. says, "They have fixed multiple leaks in my basement and explained why they were happening, keeping me updated throughout the entire repair process."See more

Larry W. says, "They have fixed multiple leaks in my basement and explained why they were happening, keeping me updated throughout the entire repair process."

EWC Construction Services

EWC Construction Services

Excellent 4.9

(15)

Excellent 4.9

(15)

General Contracting, Basement Finishing or Remodeling

13 hires on Thumbtack
Serves Newport Beach, CA

KAYLA L. says, "Eric & Steven worked with me to address all of my questions (I have A LOT). Though I did not choose EWC but I appreciate their professionalism and kindness- they spent a lot of time with me to go over what I need for my bathrooms and kitchen. If I'm not on a tight budget, I will definitely go with EWC."See more

KAYLA L. says, "Eric & Steven worked with me to address all of my questions (I have A LOT). Though I did not choose EWC but I appreciate their professionalism and kindness- they spent a lot of time with me to go over what I need for my bathrooms and kitchen. If I'm not on a tight budget, I will definitely go with EWC."

Builders Innovation Group

Builders Innovation Group

Great 4.8

(24)

Great 4.8

(24)

General Contracting

103 hires on Thumbtack
Serves Newport Beach, CA

Online now

Patricia B. says, "Extremely professional caring about your needs and explains the questions you have fully. Very positive attitude!!"See more

Patricia B. says, "Extremely professional caring about your needs and explains the questions you have fully. Very positive attitude!!"

Great 4.8

(197)

Great 4.8

(197)

General Contracting, Basement Finishing or Remodeling

273 hires on Thumbtack
Serves Newport Beach, CA

Ethan G. says, "Antonio and Karo were the installers. They were very professional and they were very detailed throughout. All of my 3 closets were flawless. They are so beautiful!! Thank you Ivy Builders , thank you Antonio and Karo!!!"See more

Ethan G. says, "Antonio and Karo were the installers. They were very professional and they were very detailed throughout. All of my 3 closets were flawless. They are so beautiful!! Thank you Ivy Builders , thank you Antonio and Karo!!!"

Eco Home Builders

Eco Home Builders

Excellent 4.9

(103)

Excellent 4.9

(103)

Basement Finishing or Remodeling, General Contracting

128 hires on Thumbtack
Serves Newport Beach, CA

Online now

Brianna S. says, "We couldn’t be happier with our decision to trust Eco Home Builders for our ADU project. From the first consultation to the final walkthrough, the entire experience was seamless, professional, and surprisingly personal. They didn’t just build an additional unit — they helped us create a space that feels like home. The design team took our vision seriously and brought it to life with creativity and care, while the construction crew worked with precision and integrity every step of the way. What really set them apart was their commitment to quality and communication. We always knew what stage the project was in, and any questions we had were answered with clarity and respect. Our ADU turned out better than we imagined — stylish, functional, and built to last. Whether you’re looking to create a rental space, a guest house, or a home for family, I can’t recommend Eco Home Builders highly enough. They’re more than contractors — they’re partners who genuinely care about your dream."See more

Brianna S. says, "We couldn’t be happier with our decision to trust Eco Home Builders for our ADU project. From the first consultation to the final walkthrough, the entire experience was seamless, professional, and surprisingly personal. They didn’t just build an additional unit — they helped us create a space that feels like home. The design team took our vision seriously and brought it to life with creativity and care, while the construction crew worked with precision and integrity every step of the way. What really set them apart was their commitment to quality and communication. We always knew what stage the project was in, and any questions we had were answered with clarity and respect. Our ADU turned out better than we imagined — stylish, functional, and built to last. Whether you’re looking to create a rental space, a guest house, or a home for family, I can’t recommend Eco Home Builders highly enough. They’re more than contractors — they’re partners who genuinely care about your dream."

5.0

(1)

5.0

(1)

Basement Finishing or Remodeling, General Contracting

Serves Newport Beach, CA

George S. says, "I am very satisfied with their services and level of professionalism. The team is prompt, reliable, and consistently follows through on their commitments."See more

George S. says, "I am very satisfied with their services and level of professionalism. The team is prompt, reliable, and consistently follows through on their commitments."

Precise Building & Restoration

Precise Building & Restoration

Great 4.7

(16)

Great 4.7

(16)

General Contracting

69 hires on Thumbtack
Serves Newport Beach, CA

Sally M. says, "They remodeled my 2 bathrooms and kitchen not a major remodel but I will be using this company to remodel the rest of my house I am thankful."See more

Sally M. says, "They remodeled my 2 bathrooms and kitchen not a major remodel but I will be using this company to remodel the rest of my house I am thankful."

Elite Builders Corp

Elite Builders Corp

Exceptional 5.0

(12)

Exceptional 5.0

(12)

General Contracting

9 hires on Thumbtack
Serves Newport Beach, CA

Diane R. says, "I recently hired “Elite Builders Corp” for a very difficult garage conversion to an A. D. U. Owned by Shahram E. , the company is like no other. It was the greatest decision I ever made. Shahram is the best contractor I have ever worked with. He is licensed, bonded, highly skilled, knowledgeable and just a delight. The whole process was very stress free. The outcome was beyond my wildest dreams. I love my new A. D. U. I would highly recommend Elite Builders for any remodeling, renovations or just some long put off projects. I cannot wait to call him, and get started on a new job. Thank you Shahram."See more

Diane R. says, "I recently hired “Elite Builders Corp” for a very difficult garage conversion to an A. D. U. Owned by Shahram E. , the company is like no other. It was the greatest decision I ever made. Shahram is the best contractor I have ever worked with. He is licensed, bonded, highly skilled, knowledgeable and just a delight. The whole process was very stress free. The outcome was beyond my wildest dreams. I love my new A. D. U. I would highly recommend Elite Builders for any remodeling, renovations or just some long put off projects. I cannot wait to call him, and get started on a new job. Thank you Shahram."

Orange Home Builders

Orange Home Builders

Exceptional 5.0

(22)

Exceptional 5.0

(22)

General Contracting

29 hires on Thumbtack
Serves Newport Beach, CA

Chris W. says, "We had such a great experience trusting Orange Home Builders with our full 2.5 bathroom remodel. Haim and his team were amazing from the first meeting and always showed up on time and were extremely communicative throughout the entire process. They have an in-house designer that made visualizing our changes so simple and they were even quicker than the timeline they shared (a pleasant surprise in this day and age). Everything budget/price wise was communicated up front and was the same as the final amount. Our bathrooms have turned out so amazing and my family and I can't be happier. Make sure if you're considering any type of home renovation/build/remodel you take a serious look at Orange Home Builders and can trust they'll get the job done right."See more

Chris W. says, "We had such a great experience trusting Orange Home Builders with our full 2.5 bathroom remodel. Haim and his team were amazing from the first meeting and always showed up on time and were extremely communicative throughout the entire process. They have an in-house designer that made visualizing our changes so simple and they were even quicker than the timeline they shared (a pleasant surprise in this day and age). Everything budget/price wise was communicated up front and was the same as the final amount. Our bathrooms have turned out so amazing and my family and I can't be happier. Make sure if you're considering any type of home renovation/build/remodel you take a serious look at Orange Home Builders and can trust they'll get the job done right."

Built To Perfection Inc.

Built To Perfection Inc.

Very good 4.6

(53)

Very good 4.6

(53)

General Contracting

75 hires on Thumbtack
Serves Newport Beach, CA

Online now

Lynne Chism says, "I first heard about Built to Perfection and Shay from my niece. She and her husband had an unusual space off their master bedroom turned into a bathroom with a walk in shower. It is beautiful! When I needed work done at my home, my niece suggested your company and Shay. She met Shay at my home and he came up with plans to renovate my front porch, which was literally falling down. His subcontractors were skilled and efficient. The front porch turned out great with more space somehow and handrails which were needed. There was painting too and rain gutters installed. I will call Shay and Built to Perfection when I need other construction projects done. Thank you Shay and Built to Perfection!! I forgot to mention that your company replaced my front door. It is perfect!"See more

Lynne Chism says, "I first heard about Built to Perfection and Shay from my niece. She and her husband had an unusual space off their master bedroom turned into a bathroom with a walk in shower. It is beautiful! When I needed work done at my home, my niece suggested your company and Shay. She met Shay at my home and he came up with plans to renovate my front porch, which was literally falling down. His subcontractors were skilled and efficient. The front porch turned out great with more space somehow and handrails which were needed. There was painting too and rain gutters installed. I will call Shay and Built to Perfection when I need other construction projects done. Thank you Shay and Built to Perfection!! I forgot to mention that your company replaced my front door. It is perfect!"

FAQs

Answers to commonly asked questions from the experts on Thumbtack.

What is the best waterproof flooring for a basement?

There are several great options for waterproof basement flooring. For example, epoxy floors are waterproof but are thicker and sturdier than paint. Make sure the concrete substrate has been prepared for application.

Tile is a designer’s dream, giving you a moisture-resistant surface that’s infinitely customizable. Rubber sheets or tiles are also good waterproof options, particularly for playrooms, workout areas or laundry rooms.

Vinyl tiles and planks imitate wood or other materials very convincingly, provide moisture resistance and last a long time. And sheet vinyl is affordable and a great waterproofing solution for those in need of quick fixes.

There are 5 five star Basement Professionals in Newport Beach, CA on Thumbtack.

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