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TRUSTED BY WINDHAM, NH HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon225
    Verified basement remodels reviews

Top-Rated Basement remodelers in Windham - Updated Nov 2026

Avatar for Owens Corning Basement Finishing System
Owens Corning Basement Finishing System
4.5(
533
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1990

Free estimates

Warranties offered

"I couldn’t be happier with the work Owens Corning Basement did remodeling my basement! From start to finish, they were professional, courteous, and attentive to every detail. The team completed the project on time and within budget, keeping me informed throughout the process. The finished basement looks amazing—bright, functional, and exactly what I envisioned. I highly recommend Owen Corning Basement to anyone looking for high-quality remodeling work!"
Media Room Before
Media Room After
Games Room Before
Games Room After
Living Room Before

+128

Response time11 hrs
70 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.6(
222
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"When we started our plan of remodeling, the first thing we did was the complete roof replacement including kitchen vent & duct pipe installation to the roof, and new installation of attic ventilation. MMP did not only completed it just as agreed but also very efficiently. The crews were friendly, professional, and careful. The jobs were carefully managed and implemented effectively. I was impressed by Matt, who is the manager, and he does an outstanding job in managing the crews and the progress of the situation, and the communication was clear and always to the point. We then moved to initiate a search for a contractor of two bathrooms remodeling after completing the roof and attic vent, MMP was one of the many candidates. Matt has had not only the best idea and proposals but also shown an impressive & professional sense of evaluating the project accurately, including the possible structural modification as well as a competitive estimate of the cost of the build. His proposal included a rebuild of a wall of the bathroom to expand another one adjacent to it. Matt accepted to use my schematic design image (made with a software tool) and a spreadsheet list of the fixtures that I created - as many as fifty items including TOTO, Grohe, American Standard, Panasonic, and IKEA - to start the job (later changed some of them due to local plumbing code compliance) After beginning the bathroom remodel project, Matt shared what jobs will be done with us timely and efficiently via text so that we feel comfortable enough in knowing what is going on while living in the house of dust & noise from remodeling. The crews, Zen and Mark, were very courteous, extensively experienced, reliable, and friendly with excellent communication, sometimes with songs of 80s rock music. They ask me when more precise specifications are needed and notified me when they feel advance notifications are required. When a change is necessary due to inspection, they informed me and clarified what and why. I have never felt uncomfortable in living together with the remodel job which has lasted over four months. The completed two bathrooms were stunning, just as I imagined. Matt, Zen, and Mark have proved their strong & thoughtful expertise and lived up with my request patiently until completion. Great job. A home remodeling project cannot be successful without having a trusted partner, and my experience with MMP has led me to be glad to share my confidence that MMP has a credential to become your reliable partner to manage a construction project together."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

Recommended by89%of homeowners
Avatar for IDEAL SOLUTIONS LLC
IDEAL SOLUTIONS LLC
4.8(
13
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 2020

Free estimates

Credit card accepted

"I had an excellent experience with Ideal Solutions on my basement remodel. From start to finish, the team was professional, communicative, and detail-oriented. The quality of the work exceeded my expectations, and the finished basement turned out even better than I imagined. Everything was completed on time, and they made the entire process smooth and stress-free. I would absolutely recommend Ideal Solutions to anyone looking for basement remodeling or home improvement work."
17 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for KATS Construction & Remodel, LLC
KATS Construction & Remodel, LLC
4.3(
35
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"We hired Tom for a kitchen & half-bath remodel in 2019. As with all remodeling projects, especially a kitchen remodel that disrupts your life, Tom was wonderful at communicating and kept the project on time and on budget. Tom stands behind his work and quickly remediated any issues (which are always inevitable with these projects) and we can absolutely say that we are still 100% satisfied a year later. We completely trusted Tom to make our kitchen remodel dream come true and would hire him again should another project come up!"
Finished Kitchen Remodel
Nashua Kitchen Remodel
Bathroom
Kitchen Remodel
ATTIC BEFOR & AFTER

+64

Response time2 days
50 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Horsman Builders
Horsman Builders
4.3(
23
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"When you find a great contractor, don’t let them go. ;). I hired Tim to build a screen porch under my deck but added several projects as I recognized the high quality of work and attention to detail from his crew. In addition to the screen porch, they built a deck extension - so nice that I decided to have them replace the existing deck, installed a basement slider and replaced the door, installed a new fence and built a shed. Tim was responsive, open, honest and receptive of my requests and additions during the project. Great experience working with Tim and his crew: Dan, Brian, Eddie and Ben. Great job on all the work - I’ve received many compliments from neighbors and guests on the work you did! I can’t recommend Tim and his crew enough."
General Remodeling Project
General Remodeling Project
Additional Photos
Additional Photos
Additional Photos

+4

Response time7 hrs
Response rate100%
2 neighbors recently requested a quote
Peter Rousseau
4.8(
90
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 2009

Free estimates

Small jobs welcome

"I had a very satisfying experience with my basement remodel! I was referred to Peter Rousseau and immediately the estimate was on the Button. I added some other tasks as well as upgraded materials to really make the basement a family room and he was very fair about charging me for these extras. I love my new basement!"
New deck
New deck
New deck
New deck
New deck

+91

Recommended by98%of homeowners
Avatar for O'Regan Construction
O'Regan Construction
4.5(
37
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 1988

Free estimates

Customers say: Quick response

"The finished garage and mudroom addition was first-class, and has garnered a lot of praise by friends and neighbors. The work was diligent, and I was informed of all the work to be done by the contractor and his subcontractors. He was right on with the estimate and informed me if there were any changes and discussed them beforehand. I am very pleased with the job, and would recommend him to anyone looking for work on their homes, big or small."
Completed projects
Completed projects
Completed projects
Completed projects
Completed projects

+311

Response time2 days
10 neighbors recently requested a quote
Recommended by75%of homeowners
Chakar Construction
4.9(
35
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 1995

Free estimates

Offers commercial services

"Ramy and his team did an amazing job with our flooring and the remodeling of our bathroom. The outcome was perfection and I couldn’t be more happy with the result. Ramy even helped me save on supply costs by helping me find great alternatives. He is the first person I’ll call for any projects coming up and I can’t recommend him highly enough."
Painting
Painting
Painting
Painting
Painting

+37

5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Remodel or Renew Home Improvement
Remodel or Renew Home Improvement
4.6(
296
)
Basement - Remodel

Serving Windham, NH and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I used Remodel Or Renew Home Improvement to replace a door I had installed not long ago. I had water coming in and the old contractor was nowhere to be found. The owners Tom and Mike came to my house identified the issues and had a crew here the next day. I cant recommend this company enough. I was loosing sleep with water coming into my basement. I have new confidence in good people to do great work! Thank you Remodel or Renew! Exceptional service at a reasonable price."
Decks
Farmers Porch
Deck
Decks
Screened oom

+7

Response time12 hrs
Response rate95%
905 neighbors recently requested a quote
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Basement Remodel FAQs, answered by experts

While framing a basement is not as difficult as finishing a basement, it's something you should typically leave to the pros. That’s because if something is installed correctly, it will affect your entire basement. However, you can take care of some of the smaller tasks, like filling holes or putting up some insulation.

Anything having to do with the structure of your home, such as raising the ceiling, is usually the most expensive part of finishing a basement. Another project component that could be a surprisingly high expense is adding an exterior entrance. 

The cost of a walkout basement can be anywhere from $5,000 to $35,000.

Roughing in and connecting utilities are the hardest parts of finishing a basement, and they’re the parts we typically don’t recommend doing as a DIY project. Unfortunately, your finishing timeline can be extended by weeks while you wait for contractors and inspectors to install electrical wiring, plumbing lines, and heating/cooling equipment and carry out inspections.

Whether it’s more affordable to gut a house than build a new one depends on the markets where you'd be buying and selling. However, it’s usually less expensive to renovate a home than to build new construction. 

Most homeowners pay between $100,000 and $200,000 for demolition and remodeling costs, whereas the average cost to build a new home is between $139,000 and $531,300.

The average cost of remodeling a basement is $30 to $75 per square foot. If your space is unfinished and looks like it may need more help, use the higher number when calculating your estimated basement remodeling costs. A good rule of thumb is to add an additional 20% to the top of your estimate to cover any “what if” situations.

The Windham, NH homeowners’ guide to basement remodels

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