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Find Basement remodelers in Mendham

Avatar for JWB Construction, LLC

JWB Construction, LLC

5.00(
13
)
Approved Pro

JWB Construction, LLC

5.00(
13
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
31 years of experience

JWB Construction, 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!

"John Bridgman and his team did an excellent job plus they were so good at keeping on task and communicating with us. He texted the times they would be there and followed through. The workmen were very courteous and pleasant to deal with. Work was promised in 3-4 weeks and he was done exactly after 3 weeks - and they did a complete re-do of our bathroom. I would definitely hire them again."

Mark T on September 2024

JWB Construction, 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!

"John Bridgman and his team did an excellent job plus they were so good at keeping on task and communicating with us. He texted the times they would be there and followed through. The workmen were very courteous and pleasant to deal with. Work was promised in 3-4 weeks and he was done exactly after 3 weeks - and they did a complete re-do of our bathroom. I would definitely hire them again."

Mark T on September 2024


Avatar for EDP Painting Company, LLC

EDP Painting Company, LLC

4.24(
55
)
Approved Pro

EDP Painting Company, LLC

4.24(
55
)
Approved Pro
Customers say: Quick response
32 years of experience
Free onsite estimate

EDP Painting Co. is a family owned and operated business for over 25 years. Specialized in a range of residential and commercial painting, the licensed and insured professionals with EDP are the reliable choice to handle all of your painting, flooring, and construction needs. Call today for a free estimate and color consultation 973-908-5109 or laurence18@verizon.net!

"Project was done professionally and to my satisfaction. I would highly recommend this company."

Lauren D on September 2025

EDP Painting Co. is a family owned and operated business for over 25 years. Specialized in a range of residential and commercial painting, the licensed and insured professionals with EDP are the reliable choice to handle all of your painting, flooring, and construction needs. Call today for a free estimate and color consultation 973-908-5109 or laurence18@verizon.net!

"Project was done professionally and to my satisfaction. I would highly recommend this company."

Lauren D on September 2025


Velez Home Improvement, LLC

4.84(
89
)
Approved Pro

Velez Home Improvement, LLC

4.84(
89
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
25 years of experience

We are dedicated to customer satisfaction and providing quality home improvement while giving you the best value for your money. We meet our goals of providing quality workmanship in a timely fashion.

"Rodney transformed my outdated bathroom into a modern European spa retreat with exceptional craftsmanship and professionalism. Highly recommend!"

Calvin S on September 2025

We are dedicated to customer satisfaction and providing quality home improvement while giving you the best value for your money. We meet our goals of providing quality workmanship in a timely fashion.

"Rodney transformed my outdated bathroom into a modern European spa retreat with exceptional craftsmanship and professionalism. Highly recommend!"

Calvin S on September 2025


Avatar for Built To Last Home Improvements, LLC

Built To Last Home Improvements, LLC

4.77(
24
)
Approved Pro

Built To Last Home Improvements, LLC

4.77(
24
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
7 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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I gave this man $3000 which was 33% of the job upfront. Was supposed to give him 33% at the halfway part And 34% upon completion. But when I went to my bathroom and realized you left drugs in my bathroom and I have small children. Not like that 3000 black and small cleaners caught easy and heâ s lucky he hasnâ t been charged with nothing. Only reason that happened is because I wouldnâ t pursue charges. He obviously is a drug addict and has a problem so maybe he should get help Possibly isnâ t the option maybe rehab is. If you paid for supplies, you got ripped off wait 10 years and it will all fall apart charges for certain stuff but buys different stuff so he can use the extra money to pick himself up drugs without nobody noticing, I am so terribly in grief over this. $3000 he ran off with how is Matt doing in business and not in a jail cell"

Daniel B on July 2024

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 services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I gave this man $3000 which was 33% of the job upfront. Was supposed to give him 33% at the halfway part And 34% upon completion. But when I went to my bathroom and realized you left drugs in my bathroom and I have small children. Not like that 3000 black and small cleaners caught easy and heâ s lucky he hasnâ t been charged with nothing. Only reason that happened is because I wouldnâ t pursue charges. He obviously is a drug addict and has a problem so maybe he should get help Possibly isnâ t the option maybe rehab is. If you paid for supplies, you got ripped off wait 10 years and it will all fall apart charges for certain stuff but buys different stuff so he can use the extra money to pick himself up drugs without nobody noticing, I am so terribly in grief over this. $3000 he ran off with how is Matt doing in business and not in a jail cell"

Daniel B on July 2024


Avatar for Goble General Contracting, LLC

Goble General Contracting, LLC

New on HomeAdvisorNew on HomeAdvisor
Approved Pro

Goble General Contracting, LLC

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

At Goble General Contracting, LLC, we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. 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! Contact us today and see why we come so highly recommended!

At Goble General Contracting, LLC, we are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. 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! Contact us today and see why we come so highly recommended!


LJL General Contracting, LLC

5.00(
3
)
Approved Pro

LJL General Contracting, LLC

5.00(
3
)
Approved Pro
Customers say: Quick response
5 years of experience
Free onsite estimate

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 services that are customizable to each individual project. We pay close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"My contractor went above and beyond to create a beautiful basement. I would highly recommend him. He kept us abreast of every move. Did extra touches throughout. We definitely will hire him again. "

Charleen A on May 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 services that are customizable to each individual project. We pay close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"My contractor went above and beyond to create a beautiful basement. I would highly recommend him. He kept us abreast of every move. Did extra touches throughout. We definitely will hire him again. "

Charleen A on May 2025


Avatar for DM Renovation, LLC

DM Renovation, LLC

5.00(
11
)
Approved Pro

DM Renovation, LLC

5.00(
11
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
4 years of experience

Here at DM Renovation, LLC, we have 10+ years of experience on our staff. We pride ourselves on our quality and attention to detail. There's no job too big or too small that we can't handle at a very timely manner. Please don't hesitate to call today. We look forward to earning your business.

"We hired DM renovation,LLC for my bathroom remodel. I want to install a steam SPA shower, a soaking Tub, a SmartBidet in my bathroom. I want a high quality and good workmanship in the job. Drium and his crew work very hard to delivered it on time and gave me -my friends and family described as a 6 stars hotel SPA bathroom and now they are in line for visiting me. I did enjoy working with Drium. He pays attention to details and has eyes on designs and styles. I will highly recommend this company for my friends or anyone. In fact, I am continue using him to finish my guest bedroom and laundry room and he did my basement remodel a year before. Excellent job! Thanks for improving my house and making it more beautiful!! Candy W. Nj"

Candy W on June 2022

Here at DM Renovation, LLC, we have 10+ years of experience on our staff. We pride ourselves on our quality and attention to detail. There's no job too big or too small that we can't handle at a very timely manner. Please don't hesitate to call today. We look forward to earning your business.

"We hired DM renovation,LLC for my bathroom remodel. I want to install a steam SPA shower, a soaking Tub, a SmartBidet in my bathroom. I want a high quality and good workmanship in the job. Drium and his crew work very hard to delivered it on time and gave me -my friends and family described as a 6 stars hotel SPA bathroom and now they are in line for visiting me. I did enjoy working with Drium. He pays attention to details and has eyes on designs and styles. I will highly recommend this company for my friends or anyone. In fact, I am continue using him to finish my guest bedroom and laundry room and he did my basement remodel a year before. Excellent job! Thanks for improving my house and making it more beautiful!! Candy W. Nj"

Candy W on June 2022


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 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
112 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 AR Affordable Maintenance LLC

AR Affordable Maintenance LLC

4.86(
45
)
Approved Pro

AR Affordable Maintenance LLC

4.86(
45
)
Approved Pro
Super Service Award
Customers say: Quick response
7 years of experience
Free onsite estimate

AR Affordable Maintenance 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.

"Aaron and his assistant did a fantastic job of installing an attic fan in my home. Additionally, they did a phenomenal job of washing and staining my deck. They also did a great job of cleaning a vinyl fence in my yard. I am very impressed with the quality of their work, and looking forward to working with Aaron in the future. Keith W."

Keith W on August 2025

AR Affordable Maintenance 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.

"Aaron and his assistant did a fantastic job of installing an attic fan in my home. Additionally, they did a phenomenal job of washing and staining my deck. They also did a great job of cleaning a vinyl fence in my yard. I am very impressed with the quality of their work, and looking forward to working with Aaron in the future. Keith W."

Keith W on August 2025

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FAQs for basement remodeling projects in Mendham, NJ

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 Mendham, NJ homeowners’ guide to basement remodelings

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