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  • Average homeowner rating star icon4.9
    Average homeowner rating
  • Verified reviews icon46
    Verified basement remodels reviews

Find Basement remodelers in Demarest

Avatar for EMILCO Construction, LLC

EMILCO Construction, LLC

4.93(
15
)
Approved Pro

EMILCO Construction, LLC

4.93(
15
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
55 local quotes requested

Emilco Construction LLC is an independent general contracting firm that not only delivers impeccable results but prioritizes its clients. We know just how stressful a new project can be. Overseeing a development can take a real toll on somebody, especially if they don’t have the right general contracting team by their side. It takes a lot of hard work, long hours and a particular care to details in order to accomplish and follow through on a vision. Although working on improving your home or business is exciting, we understand that success relies mainly on hiring the right crew for the job!

"Emile is a great contractor and I highly recommend him reservation to anyone looking to upgrade or do a home renovation project. He helped us renovate our primary bathroom (completely, down to the studs and completely changing the layout), created a main floor laundry room, and an extra bedroom. Emile provided a comprehensive estimate, which was accurate, and he finished the entire job within the agreed upon time frame within the estimate. His crew were complete professionals, polite, and did excellent work. We could not be happier with the results and our new spaces. The rooms are beautiful. He went above and beyond in all respects, even when I decided to make changes to the design along the way, he was able to roll with them and told me how much various options would cost and other pros and cons of those options (tiling the whole bathroom vs partial, heated floors or no, different types of fixtures, etc)."

Erin L on April 2024

Emilco Construction LLC is an independent general contracting firm that not only delivers impeccable results but prioritizes its clients. We know just how stressful a new project can be. Overseeing a development can take a real toll on somebody, especially if they don’t have the right general contracting team by their side. It takes a lot of hard work, long hours and a particular care to details in order to accomplish and follow through on a vision. Although working on improving your home or business is exciting, we understand that success relies mainly on hiring the right crew for the job!

"Emile is a great contractor and I highly recommend him reservation to anyone looking to upgrade or do a home renovation project. He helped us renovate our primary bathroom (completely, down to the studs and completely changing the layout), created a main floor laundry room, and an extra bedroom. Emile provided a comprehensive estimate, which was accurate, and he finished the entire job within the agreed upon time frame within the estimate. His crew were complete professionals, polite, and did excellent work. We could not be happier with the results and our new spaces. The rooms are beautiful. He went above and beyond in all respects, even when I decided to make changes to the design along the way, he was able to roll with them and told me how much various options would cost and other pros and cons of those options (tiling the whole bathroom vs partial, heated floors or no, different types of fixtures, etc)."

Erin L on April 2024


Avatar for On The Spot Home Improvements, Inc

On The Spot Home Improvements, Inc

4.25(
6
)
Approved Pro

On The Spot Home Improvements, Inc

4.25(
6
)
Approved Pro
Customers say: Quality work
26 years of experience

Founded in 1987, On The Spot Home Improvements became one of New Jersey’s leading home improvement companies, building a reputation of excellence and customer satisfaction. Based in Saddle Brook since 2006, we pride ourselves on meeting the needs of every client we serve. Our mission is to provide comprehensive home improvement solutions from small repairs to full-scale renovations and additions. Our team ensures every project receives meticulous attention to detail, quality craftsmanship, and timely completion. And our suite of kitchen and bathroom remodeling, roofing, siding, and masonry services cater to our customers’ home improvement challenges.

"From start to finish the experience was exceptional. The team was professional and knowledgeable. The awning fabric itself is amazing. I have received numerous compliments from my neighbors. I highly recommend On The Spot for anyone looking to enhance their home."

Richard F on October 2024

Founded in 1987, On The Spot Home Improvements became one of New Jersey’s leading home improvement companies, building a reputation of excellence and customer satisfaction. Based in Saddle Brook since 2006, we pride ourselves on meeting the needs of every client we serve. Our mission is to provide comprehensive home improvement solutions from small repairs to full-scale renovations and additions. Our team ensures every project receives meticulous attention to detail, quality craftsmanship, and timely completion. And our suite of kitchen and bathroom remodeling, roofing, siding, and masonry services cater to our customers’ home improvement challenges.

"From start to finish the experience was exceptional. The team was professional and knowledgeable. The awning fabric itself is amazing. I have received numerous compliments from my neighbors. I highly recommend On The Spot for anyone looking to enhance their home."

Richard F on October 2024


Avatar for Prestige Design & Build Corp.

Prestige Design & Build Corp.

5.00(
34
)
Approved Pro

Prestige Design & Build Corp.

5.00(
34
)
Approved Pro
Customers say: Quick response
4 years of experience
Free onsite estimate

🔨 20+ Years of Experience | Detail-Oriented | Owner-Supervised on Every Project At Prestige, we pride ourselves on delivering craftsmanship you can trust. Whether it’s a small upgrade, a full-scale renovation or a custom new build our team is here to bring your vision to life. ✅ Kitchens, Bathrooms, Basements, Attics, Garages, painting, floors, trims ✅ Whole-House Renovations & Additions ✅ Add-a-Level Projects & New Construction ✅ Licensed & Insured 📲 Call/Text 201-884-3080 or visit www.prestigedesignbuildnj.com to schedule your in-home or phone consultation today. Check out our instagram profile for our projects: https://www.instagram.com/prestige_designbuild/

"Matt and his crew were incredible. Everything was done on time and on budget, he even finished a major reno two weeks early! He is professional, his subs like working for him and he is very thorough and detailed. He was always available to answer questions, explains things in details, and is not pushy. He took the vision that I had in mind and made into a reality. I highly recommend Prestige Design and Build. "

Yamaris B on May 2025

🔨 20+ Years of Experience | Detail-Oriented | Owner-Supervised on Every Project At Prestige, we pride ourselves on delivering craftsmanship you can trust. Whether it’s a small upgrade, a full-scale renovation or a custom new build our team is here to bring your vision to life. ✅ Kitchens, Bathrooms, Basements, Attics, Garages, painting, floors, trims ✅ Whole-House Renovations & Additions ✅ Add-a-Level Projects & New Construction ✅ Licensed & Insured 📲 Call/Text 201-884-3080 or visit www.prestigedesignbuildnj.com to schedule your in-home or phone consultation today. Check out our instagram profile for our projects: https://www.instagram.com/prestige_designbuild/

"Matt and his crew were incredible. Everything was done on time and on budget, he even finished a major reno two weeks early! He is professional, his subs like working for him and he is very thorough and detailed. He was always available to answer questions, explains things in details, and is not pushy. He took the vision that I had in mind and made into a reality. I highly recommend Prestige Design and Build. "

Yamaris B on May 2025


"Excellent work, attentive to details, gives job details and steps in writing."

Ali M on May 2022

We do quality work at a fair price. References are available upon request. Quality workmanship. I listen to the consumers needs and offer suggestions and advice. Quality home cleaning services available.

"Excellent work, attentive to details, gives job details and steps in writing."

Ali M on May 2022


Avatar for Vulcan Basement Waterproofing & Flooring, Inc.

Vulcan Basement Waterproofing & Flooring, Inc.

3.84(
93
)
Approved Pro

Vulcan Basement Waterproofing & Flooring, Inc.

3.84(
93
)
Approved Pro
Customers say: Quick response
18 local quotes requested
8 years of experience

Vulcan Basement Waterproofing, Making Wet Basements Dry Since 1947. We're the Area's Oldest & Largest Basement Waterproofer Proudly serving the Entire State of New Jersey as well as Rockland and Orange Counties in NY. Our installation methods and products have set the standard for the industry for OVER 70 YEARS. Call us today to schedule your FREE no-obligation estimate to have one of our expert technicians analyze the causes of your water problems and offer solutions. If you have cracks on the walls or floor or ever get water in your basement after heavy rains or melting snow and especially if you are considering finishing your basement, call us. We offer no money-down, no-interest options along with low-interest, longer term payment plans. With HUNDREDS of years of combined experience, you can rest assured that we will give you a dry, safe and useable basement...GUARANTEED!!! CALL VULCAN TODAY (800) 343-4355

"Got a quote from them very reasonable and extremely responsive. Have not performed the work."

Ian S on March 2023

Vulcan Basement Waterproofing, Making Wet Basements Dry Since 1947. We're the Area's Oldest & Largest Basement Waterproofer Proudly serving the Entire State of New Jersey as well as Rockland and Orange Counties in NY. Our installation methods and products have set the standard for the industry for OVER 70 YEARS. Call us today to schedule your FREE no-obligation estimate to have one of our expert technicians analyze the causes of your water problems and offer solutions. If you have cracks on the walls or floor or ever get water in your basement after heavy rains or melting snow and especially if you are considering finishing your basement, call us. We offer no money-down, no-interest options along with low-interest, longer term payment plans. With HUNDREDS of years of combined experience, you can rest assured that we will give you a dry, safe and useable basement...GUARANTEED!!! CALL VULCAN TODAY (800) 343-4355

"Got a quote from them very reasonable and extremely responsive. Have not performed the work."

Ian S on March 2023


Avatar for Owens Corning Basement Finishing System

Owens Corning Basement Finishing System

4.75(
73
)
Approved Pro

Owens Corning Basement Finishing System

4.75(
73
)
Approved Pro
Customers say: Quality work
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
225 local quotes requested

Lux Renovations, LLC, has been serving New England homeowners since 2002. We've finished over 8000 basements in New England, usually in 2-3 weeks. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 8 years in a row. Something like that does not 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 no-charge consultation and design is available. Give us a call today!

"Lux project manager and staff were great! Great attention to detail."

Brian C on December 2022

Lux Renovations, LLC, has been serving New England homeowners since 2002. We've finished over 8000 basements in New England, usually in 2-3 weeks. Our dedication to customer experience and satisfaction has won us Owens Corning's top customer service ranking nationally for the last 8 years in a row. Something like that does not 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 no-charge consultation and design is available. Give us a call today!

"Lux project manager and staff were great! Great attention to detail."

Brian C on December 2022


Avatar for RWS Homes, LLC

RWS Homes, LLC

4.69(
38
)
Approved Pro

RWS Homes, LLC

4.69(
38
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
42 local quotes requested

Visit Our New Website! www.RWSBuild.com RWS Building & Remodeling specializes in residential and commercial construction services, including design/build, home additions, add-a-level, and whole house remodeling. Our highly skilled and experienced craftsmen have provided construction and remodeling solutions, at competitive rates, for homeowners and businesses throughout Rockland and Northern Bergen Counties. For additional information or to arrange a consultation for your project at your Bergen County or Rockland County home or business, please contact RWS Building & Remodeling at 201-749-1001 or 845-213-2131. We would love to be a part of your next project!

"Wonderful experience with Rob and his crew. We have gone through construction before, and nothing compares to RWS. Excellent work, attention to the little details was so impressive. The crew becomes your friends, you can trust them 1000%. We are over the moon with the results. Better than I could ever have imagined and I had a specific vision."

Deborah M on April 2020

Visit Our New Website! www.RWSBuild.com RWS Building & Remodeling specializes in residential and commercial construction services, including design/build, home additions, add-a-level, and whole house remodeling. Our highly skilled and experienced craftsmen have provided construction and remodeling solutions, at competitive rates, for homeowners and businesses throughout Rockland and Northern Bergen Counties. For additional information or to arrange a consultation for your project at your Bergen County or Rockland County home or business, please contact RWS Building & Remodeling at 201-749-1001 or 845-213-2131. We would love to be a part of your next project!

"Wonderful experience with Rob and his crew. We have gone through construction before, and nothing compares to RWS. Excellent work, attention to the little details was so impressive. The crew becomes your friends, you can trust them 1000%. We are over the moon with the results. Better than I could ever have imagined and I had a specific vision."

Deborah M on April 2020


Rockledge Remodeling NJ, LLC

New on AngiNew on Angi
Approved Pro

Rockledge Remodeling NJ, LLC

New on AngiNew on Angi
Approved Pro
124 local quotes requested
Free onsite estimate

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We offer a diverse range of services tailored to meet the unique needs of every customer. We take a personalized approach to each project. We work closely with our clients to understand their vision, preferences, and budgetary requirements. We strive to exceed expectations by delivering exceptional service, great quality work, and professionalism on every job. Read more below on all the services we offer and contact us with any questions or to schedule a free estimate today!


Avatar for JOHANNEMANN AND SONS GENERAL CONTRACTING LLC

JOHANNEMANN AND SONS GENERAL CONTRACTING LLC

5.00(
21
)
Approved Pro

JOHANNEMANN AND SONS GENERAL CONTRACTING LLC

5.00(
21
)
Approved Pro
84 local quotes requested
5 years of experience

We' are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. 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 guarantee your satisfaction!

"I hired Johannemann and sons to replace an aging roof that caused some water damage inside of the home after the recent nor’easter. Rob and his staff paid the utmost attention to detail in their work and was most diligent to make sure my home was as good as new. Rob was attentive and respectful with every question that my wife and I had throughout the process. This was my first time working with Johannemann and Sons but will certainly be using them for future projects. You will not be disappointed. "

Homeowner on November 2025

We' are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Additions and Kitchen Remodels, but also offer a wide range of expertise for a variety of other projects. 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 guarantee your satisfaction!

"I hired Johannemann and sons to replace an aging roof that caused some water damage inside of the home after the recent nor’easter. Rob and his staff paid the utmost attention to detail in their work and was most diligent to make sure my home was as good as new. Rob was attentive and respectful with every question that my wife and I had throughout the process. This was my first time working with Johannemann and Sons but will certainly be using them for future projects. You will not be disappointed. "

Homeowner on November 2025


Avatar for Fresh Contracting/Home Improvements

Fresh Contracting/Home Improvements

4.43(
7
)
Approved Pro

Fresh Contracting/Home Improvements

4.43(
7
)
Approved Pro
Customers say: Quick response
27 local quotes requested
17 years of experience

Fresh Contracting was started in 2008 as a sole proprietary. Now as an LLC, I have expanded the business to include home improvements. We can offer a variety of services from hardscape, fence installation and home improvements. I try to focus on quality work and being honest to customers. My profile will include pictures of outdoor patios, bathrooms & basements . If you would like to know more about myself and have interest in a estimate, you can call or email! Thank you have a good day!!

"Manny performed exceptionally well throughout the project. His transparency and regular updates kept me informed every step of the way. Notably, he maintained a clean and organized workspace, ensuring that my home was not left in disarray after his work was completed. I highly recommend Manny for future projects and will certainly hire him for my next home project."

Jerome D on November 2025

Fresh Contracting was started in 2008 as a sole proprietary. Now as an LLC, I have expanded the business to include home improvements. We can offer a variety of services from hardscape, fence installation and home improvements. I try to focus on quality work and being honest to customers. My profile will include pictures of outdoor patios, bathrooms & basements . If you would like to know more about myself and have interest in a estimate, you can call or email! Thank you have a good day!!

"Manny performed exceptionally well throughout the project. His transparency and regular updates kept me informed every step of the way. Notably, he maintained a clean and organized workspace, ensuring that my home was not left in disarray after his work was completed. I highly recommend Manny for future projects and will certainly hire him for my next home project."

Jerome D on November 2025

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Basement Remodel questions, answered by experts

The cost to remodel a basement is between $12,100 and $33,400 for the average homeowner. The price you pay can be as little as $3,500 or as much as $50,200, depending on the size and condition of your basement and the type of remodel you're doing. 

If you're doing a simple project like adding a home office to your basement, you can expect to pay anywhere from $500 to $3,000. However, if you're adding a bathroom, which is an extensive project, you can expect to pay between $6,600 to $16,500.

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.

Although it’s not required, air ventilation in a finished basement can help improve the air quality, prevent moisture and mold issues, keep musty odors away, and also maintain the air quality throughout the rest of your home. Proper ventilation will help maintain the value of your investment in finishing your basement. Try basement ventilation methods like installing vents or a dehumidifier for best results.

Yes, you can add a door to your basement—it might even be required, depending on building codes in your area and whether or not you’re using the basement as a bedroom. A basement contractor can give you some advice on installation and help you add a door to your basement.

Common mistakes when finishing basement walls include neglecting proper insulation, insufficient moisture management, and poor ventilation. Not addressing these issues can lead to mold growth, water damage, and discomfort. Additionally, inadequate planning, improper framing, and rushing the project can result in subpar outcomes. 

It's essential to follow best practices, seek professional guidance if needed, and prioritize thoroughness and attention to detail.

The Demarest, NJ 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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