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TRUSTED BY MATTITUCK, NY HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon19
    Verified basement remodels reviews

Top-Rated Basement remodelers in Mattituck - Updated Nov 2026

Avatar for Pristine East End Contracting
Pristine East End Contracting
4.8(
81
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 2006

Free estimates

Credit card accepted

"Nick did an awesome job with our medicine cabinets. His work went above and beyond. When he noticed too-large gaps between the doors and frames, he drove all the way to the building supply store to get better-sized parts. Would definitely recommend him."
Project Photos
Recommended by95%of homeowners
Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"There are not many people in today’s world that really cares about how they are perceived . A true craftsmen is honorable and able to listen. Quality and precise precision make every job memorable . Arthur takes pride in everything he does. You could not find a better construction company , run with complete honesty and quality work. Doesn’t forget his patience and caring for what his customer wants. Hire this amazing company…you will not regret it. Your satisfaction gives him joy in his craftsmanship ?"
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+20

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
30
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Jose and his team were the best team I have ever had work on a job in my house. Jose went WAY above and beyond to make sure we had our basement back in order in a timely fashion. He was willing to work after hours if needed to help get our finished basement back after we had suffered a sewage leak and had to wait until mitigation was complete. A 3-4 day job was complete in 2 days! And one of his workers, Carlos, from the second day stuck around to help me get the heavy and large items back into the basement. There was a previous review that said Jose was very emphatic to their needs and that is so true. That review actual was what made me give Jose a call. I wish there was a word better than highly recommend. Thank you Jose and your entire team!"
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+26

Response time8 hrs
22 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Loja Renovations Fine Carpentry LLC
Loja Renovations Fine Carpentry LLC
5.0(
27
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 2024

Free estimates

Small jobs welcome

"This was the absolute best home updates I have ever received they professionalism and efficiency was perfect they are amazing and have already referred them to multiple family and friends will continue to use them for everything in my home more then please all staff were great"
Bathroom
Bathroom
Bathroom
Bathroom
Bathroom

+5

Response time1 day
Response rate100%
Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
12
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We cannot say enough about ASM Home Improvement. The owner Anthony was absolutely amazing every step of the way. First he put our mind at ease to what we wanted was not only possible but was going to be great and great it was ! Him and his crew were professional and sincerely cared about the job. The workmanship was top notch. Anthony’s talent to make our deck beautiful truly showed and we absolutely love it ! We will hire Anthony and his crew again for our next project and highly recommend him and his company. He will make your vision a reality!"
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
11 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Premier Home Remodeling & Design
Premier Home Remodeling & Design
3.9(
25
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Premier home remodeling did a amazing job on a big renovation we had done on our home. We had our unfinished basement, kitchen and 2 bathrooms remodeled. Charles and the crew were professional, clean, and super friendly. They had great suggestions, and designed our kitchen a way me and my husband never thought could be done. Our bathrooms are beautiful, and our basement is a great new living space to our home. We will definitely use them again and will be recommending them to all of our family and friends. Thank you premier!"
custom niche
vanity and tops
vanity and tops
cabinets
mirror

+53

Response time2 days
Response rate87%
11 neighbors recently requested a quote
Avatar for Agate & Co. Builders
Agate & Co. Builders
5.0(
13
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 1990

Free estimates

Warranties offered

"Excellent job. Showed up on time and did a nice clean up after. This job was to replace a hole in the ceiling with sheetrock and painting. Very good work; I can't even see where he patched it, so smooth. I will definitely use James Agate Contracting again."
Sag Harbor Re-Build
Sag Harbor Re-Build
Sag Harbor Re-Build
Sag Harbor Re-Build
Sag Harbor Re-Build

+40

Response time2 days
15 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Two Stories Building Co
Two Stories Building Co
4.4(
8
)
Basement - Remodel

Serving Mattituck, NY and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"The work that was done was exceptional! It was exactly what I wanted and done with great craftsmanship. They were easy to talk to and had great communication as far as timelines and cost. I would highly recommend them and would have them do any work needed again without question. Totally professional!"
Arch
Arch Progress
28' Arch
Front Door
Crown and Casing

+48

Response time5 hrs
6 neighbors recently requested a quote
Recommended by33%of homeowners
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Basement Remodel FAQs, answered by experts

A finished basement must have a heat and electrical supply with an entrance that meets building code requirements, such as a stairwell to the home's main living space. It often must include finished walls, ceilings, and floors. If the finished basement includes a bedroom, it should have a heat source, an egress window, and a closet.

Remodeling, as opposed to finishing, means altering an already finished basement by adding a bathroom, bedroom, or living area.

If you don’t have a crawl space but have a partial basement you want to make deeper, you can expect to spend a little less—between $40,000 and $90,000 on average. However, if you’re not adding new finished square footage, you won’t see much in the way of ROI.

You should plan on waiting at least a year and ideally two to three years after construction before finishing your basement. This will give the foundation time to settle in response to the weight of your home and the expansion of the surrounding soil. You can then repair your foundation and seal any cracks as needed before finishing it to reduce your risk of future leaks or other issues.

Although homeowners often use the terms basement remodeling and basement finishing interchangeably, they are quite different terms. 

Finishing a basement is the process of taking a basement space that is not habitable and adding elements to make it usable. This includes adding plumbing, flooring, and insulation.

Remodeling a basement means taking an already existing finished basement and changing it, often by adding or removing walls, adding plumbing, or changing the existing flooring.

Yes, in most cases, finishing a basement is worth the cost. The project adds valuable, usable square footage to your home and typically provides a return on investment (ROI) of 70% to 75%. For example, an average basement refinishing project costing $32,000 could add between $22,400 and $24,000 to your property's value. The final value added depends on factors like your location, the quality of materials and workmanship, and the features you include, such as a living space, bedroom, or bathroom. To be officially counted in your home's total square footage, the finished space must comply with all local building codes, including requirements for points of egress. However, in areas prone to flooding, a finished basement might be seen as a liability by potential buyers and could potentially decrease your home's value.

The Mattituck, NY homeowners’ guide to basement remodels

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