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Find Basement remodelers in Londonderry

Chakar Construction
5.0(
33
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 1995

Free estimates

Offers commercial services

"Amazing! Ramy and his team did an amazing job and really take a lot of pride in their work! He removed the old door, fixed the rotted parts of the floor, and installed a new slider. My wife and I can’t believe how good it looks and the improvement it made. We will hire Ramy and Chakur Construction for our new hardwood floor install shortly. Look no further when you need any remodeling in your home. I research everything before I make a decision and am so happy I chose Chakur!"
Painting
Painting
Painting
Painting
Painting

+37

5 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Handy and Some
Handy and Some
4.7(
30
)

Serving Londonderry, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2014

Free estimates

Warranties offered

"It was great to have Sean and his skilled team to do a complete remodeling of our kitchen. They are very professional, and kept the schedule on every phase of the project. For our next project for sure we know who to trust and who to go to! We highly recommend Handy & Some, LLC"
Atkinson kitchen remodel
Atkinson kitchen remodel
Atkinson kitchen remodel
Atkinson kitchen remodel
Atkinson kitchen remodel

+139

Response time2 days
5 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for KATS Construction & Remodel, LLC
KATS Construction & Remodel, LLC
4.9(
25
)

Serving Londonderry, 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
48 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Extreme Makeover Custom Home Repair Handyman, LLC
Extreme Makeover Custom Home Repair Handyman, LLC
4.6(
156
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 1996

Free estimates

Emergency services offered

"I was so happy with my previous bathroom remodel from Extreme Makeover I hired John again to do another Project on the upstairs bath. Again, the results were better than I anticipated. John Leahy, owner and his associate John produced a beautiful and updated look. The craftsmanship was impeccable and they were always on time and finished the project earlier than promised. John is very courteous and approachable and is easy to relate to. I know you will be very pleased with Extreme Makeover for your next home project."
Additional Photos
Sun room
decking and siding
library
Response time1 day
2 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for MMP Construction Inc
MMP Construction Inc
4.7(
191
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"I would highly recommend MMP Construction. Matt and his team are knowledgeable, friendly, and extremely hardworking. Even after running into some unexpected structural issues once the walls were opened up they still managed to get the job done in the time frame quoted by working extra hours and weekends. I was truly blown away by the level of dedication and service. Anytime a challenge came up, someone on the team was quick to provide a great solution. And the finished product is absolutely gorgeous. I would hire them again in a heartbeat. <br />"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+154

2 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for IDEAL SOLUTIONS LLC
IDEAL SOLUTIONS LLC
4.8(
12
)

Serving Londonderry, 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."
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Anything & Everything Home Improvement LLC
Anything & Everything Home Improvement LLC
4.8(
59
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2008

Free estimates

Warranties offered

"The owner, Jesse Bourque, was wonderful to work with. He always responded to our questions and text messages very promptly. The quality of the workmanship was excellent. Each carpenter we encountered took professional pride in a job well done. I wouldn’t hesitate to use him for any construction project small or large."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+53

1 neighbors recently requested a quote
Recommended by93%of homeowners
Peter Rousseau
5.0(
82
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2009

Free estimates

Small jobs welcome

"Peter has great attention to detail and is extremely meticulous with his work. I felt that Peter went above and beyond with our deck remodel project. He was very consultative with the material selection and provided options and suggestions that most contractors would have overlooked. I highly recommend him and plan on using him again for future projects."
New deck
New deck
New deck
New deck
New deck

+91

1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for DCL Construction
DCL Construction
5.0(
9
)

Serving Londonderry, NH and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"We have been wanting to finish our basement for a very long time now but the prices we were given were too high! A friend of ours referred DCL to us and we thought we would give them a shot. The price was right so we started shortly after. They took care of all the paperwork and permits needed! Bob was there for the whole process discussing with us every step of the remodel! Very knowledgable and very well trained team! Our basement looks incredible and we enjoy spending time there! I would recommend DCL to anyone!!"
Completed jobs or on goin
Basement remodel
Basement remodel bathroom added
Basement remodel and bath room added
Basement remodel

+24

Response time6 hrs
10 neighbors recently requested a quote
Recommended by66%of homeowners
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Showing 1-10 of 396
FAQs for basement remodeling projects in Londonderry, NH

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 Londonderry, NH homeowners’ guide to basement remodelings

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