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Best basement remodelers near Stratham, NH

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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon31
    Verified basement remodels reviews

Top-Rated Basement remodelers in Stratham - Updated Nov 2026

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

Serving Stratham, 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
72 neighbors recently requested a quote
Recommended by69%of homeowners
Avatar for Horsman Builders
Horsman Builders
4.3(
23
)
Basement - Remodel

Serving Stratham, 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
Avatar for Benchmark Home Improvements
Benchmark Home Improvements
4.8(
143
)
Basement - Remodel

Serving Stratham, NH and surrounding areas

Approved

In business since 1997

Free estimates

Credit card accepted

"We are so happy that we hired Benchmark to remodel our kitchen! Lee and Ian were professional and knowledgeable, from beginning to end. We were very impressed with their attention to detail. They made our 1980's dingy, dark kitchen look amazing with beautiful white cabinets and granite countertops. We love it! I highly recommend Benchmark and will recommend them to my family and friends. Thank you, Lee and Ian! Sallie and Don M."
BBB torch award for 2018!
BBB torch award for 2018!
BBB torch award for 2018!
BBB torch award for 2018!
BBB torch award for 2018!

+18

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for DCL Construction
DCL Construction
5.0(
9
)
Basement - Remodel

Serving Stratham, 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
2 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for Kelleher General Contracting
Kelleher General Contracting
4.8(
50
)
Basement - Remodel

Serving Stratham, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"Kelleher contracting did an excellent job repairing my deck. They showed up on time and finished the work in one day. I would highly recommend them and I would use them for any remodeling projects."
Response time1 day
Response rate92%
54 neighbors recently requested a quote
Torin Soares Contracting
5.0(
14
)
Basement - Remodel

Serving Stratham, NH and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"I needed the backsplash in my kitchen done professionally since I chose tile, which is not something I could do. Torin fit my smaller project in , between his bigger outdoor projects. He was very professional, offered suggestions, did a great job, both installing and cleaning up each day so as not to disrupt my kitchen usage. His measurements and quantities were spot on( I was ordering the tile myself). I will definitely call him for my next project. His quote and finished price were almost spot on and very reasonable. I highly recommend him for anything you need done!"
Response time3 days
3 neighbors recently requested a quote
Recommended by23%of homeowners
Avatar for True North Contracting
True North Contracting
4.4(
96
)
Basement - Remodel

Serving Stratham, NH and surrounding areas

Approved

In business since 2005

Free estimates

Small jobs welcome

"Pros: 1)Very easy to work with the guys. 2)Returned phone calls in a timely manner. 3)They were able to adapt and work with contractors performing other tasks on the property. 4)Jill (the painter) did an excellent job. Cons: 1)Estimate had a line item for delivery of dumpster which was not delivered but we were still charged for it. 2)Estimate called for pre finished white oak but red oak was used. We were okay with this but the point is, what was specified in the original estimate was not what was used. 3)Quality of work was not superb. A flooring contractor would have been better. GET LINE ITEM ESTIMATE IF YOU USE THIS CONTRACTOR"
Roof
Kitchen Reno
Finish
Ready for Grout
 Finished

+66

Response time7 hrs
14 neighbors recently requested a quote
Recommended by93%of homeowners
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Showing 1-10 of 195
Basement Remodel FAQs, answered by experts

Rebar is an essential part of reinforcing a basement floor, as not having it can impact its structural integrity. It helps absorb the tension factors that contribute to cracks in your floor and strengthens its load-bearing capabilities by evenly distributing the weight. Not including rebar could lead to an unstable floor, so don’t skip it!

There are several small, inexpensive upgrades you can make to upgrade your basement. Although you still need to adhere to building codes and obtain permits when necessary, you can complete small but mighty tasks like painting the masonry walls and installing entertainment devices to make the space more usable. 

When considering finishing your basement, take into account a few pros and cons:

Pros

  • Can increase the value of your home

  • Separate space from the rest of the house 

  • Customize and personalize the basement to suit your needs and style

  • Increase the amount of living space in your home

Cons

  • May not regain enough value to cover the cost of finishing

  • Lack of natural light if it’s below ground level

  • Moisture or flooding can cause costly damage

  • Installing plumbing and electrical can be messy and costly

Installing a bathroom in a basement isn’t a project for most homeowners. Many parts—plumbing, electricity, and carpentry—go into this project, each requiring expert-level knowledge and tools. One miscalculation can lead to very expensive repairs. Plus, some homeowner’s insurance might not pay for damages caused by a homeowner DIYing this project. You can protect yourself by allowing the pros to complete this job for you. 

Any bowing in a basement wall indicates a problem that needs to be addressed by a professional. If your basement wall bows more than 1 inch, it's time for an inspection. Generally, a wall can bow up to 30% of its thickness (around 2.5 inches for an 8-inch-thick wall) before it becomes an urgent situation. Bowing of 2 to 4 inches is more straightforward to fix than bowing of more than 4 inches, which will require significant repairs. If the bowing is more than 6 inches, the wall will likely need to be replaced. The sooner you address the problem, the easier and less expensive the repair will be.

The Stratham, NH homeowners’ guide to basement remodels

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