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Basement Finishing Contractors in West Islip, NY

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  1. Answer a few questions about your home project.
  2. Within seconds, get matched with top-rated local pros.
  3. Compare quotes and choose the best pro for the job.

Service Pros

    P17 Construction Logo
    Farmingdale, NY·

    Vinyl Siding - Install or Completely Replace or Repair, Asphalt Shingle Roofing - Install or Replace or Repair, Gutters Installation

    "Eric and his crew were excellent, professional and efficient. Removed and replaced my entire roof and gutters, addressed all of my concerns, also made helpful suggestions and ensured that my roof had adequate ventilation. Got everything done in one day. Excellent quality work done at an excellent price. No complaints. I highly recommend this company to anyone. Not a single complaint from me."

    Joseph R. in March 2024

    Exterior Team Home Services, Inc. Logo
    Patchogue, NY·

    Roofing, Framing

    "They did a wonderful job, and I could not have been happier, with the work they did and how easy they were to deal with."

    Evelyn P. in December 2021

    Alpha & Omega Logo

    "Very nice and hard working. It's a family business I believe, and they did a great job with a fall cleaning up."

    Tim D. in December 2023

    All Precision Home Improvement, Inc. Logo
    Mastic Beach, NY·

    Deck or porch - build or replace, Vinyl siding - install or completely replace, Bathrooms and basements

    "Anthony and his whole team were very professional, neat and did a great job removing and installing new vinyl siding and trex stairs in my backyard. He did an excellent job and would recommend him to all family and friends in need of home improvement!"

    Brooke D. in December 2020

    HM Construction Group, Inc. (Long Island Handyman Group) Logo
    Plainview, NY·

    Sheetrock, Trim, Bathrooms, Finishes, Handyman Services, All Phases of Construction , and 2 more

    "He went above and beyond. It was a pleasant experience overall. I was very happy with him and would use him again."

    Daniel S. in October 2017

    TS
    West Babylon, NY·

    Kitchen Remodler, Bathroom Remodler, Basement Remodler

    "Very easy to talk to and friendly Knowledgeable on all aspects of home improvement"

    Eric P. in February 2021

    WB
    Long Beach, NY·

    Framing, new construction, dormers, extensions, flushing headers and all aspects of framing, Kitchens and bathrooms, Gazebos , and 2 more

    "From start to finish very meticulous always updating you on project .on timely basis paid attention to details did a beautiful job.Also replace hundred year old floors"

    Frances D. in May 2021

    VQ
    Lindenhurst, NY·

    Kitchens\ Basements \ Domers \ Extensions, Custom Decks, Handyman \ Sheetrocking and Taping , and 2 more

    "The work was done as described - on time and at the price discussed. Very good service. No surprises and I was very satisfied with the end results."

    Joel P. in December 2010

    BB
    LINDENHURST, NY·

    remodeling

    "Andrew was a pleasure to work with - extremely professional, prompt and did all that was asked on a timely manner. Would highly recommend his services!"

    Jordan W. in February 2024

Showing 1-9 of 18 results

How much do basement finishing contractors typically cost?

  • West Islip, New York Average
    $20,925
  • Typical Range
    $0 - $45,000
  • Low End - High End
    $3,500 - $49,900

Frequently asked questions

  • It’s important that you verify their license is still in good standing. Also keep in mind that certain states or provinces don’t require licensing if the job is under a certain dollar amount.
  • You can find a list of your state’s licensing requirements on the HomeAdvisor website. Before you get to work with the pro, make sure their qualifications are current and acceptable to you.
  • It is always a good idea to get a copy of the pro’s insurance certificate for future records, and in case anything happens. This is a good way to feel more secure in your home project, and to weed out potential scammers.

HomeAdvisor makes it easy to connect with pros near you. You can read reviews, get quotes and book appointments all in one place.

Depending on the type of project, you may find subtle differences in the hiring process. Here’s a look at task-specific advice.

You can use HomeAdvisor to help evaluate a contractor’s qualifications. We put pros through a screening process, and award badges to high-performing contractors. You can find these badges on a pro’s HomeAdvisor profile, and sometimes, his or her website. 

Your research doesn’t stop here. Once you’ve found a few prospective companies, make an call to ask a few questions about work history, licensure and more:

  • Have you completed a job like this before?
  • Do you have a list of references I can contact?
  • When are you able to start the job?

In most cases, the responses you get to these three questions will give you a very good idea of the right pro for your project. If you have more than one front-runner, these additional questions can help you narrow it down. 

  • How many years of experience do you have?
  • What’s your permanent business address?
  • Are you licensed to work in my area?
  • When did you earn your business license?
  • How do you handle warranty service complaints?
  • Do you have worker’s compensation, property damage and personal liability insurance?

Any good contractor will answer these questions, and most will appreciate dealing with a client that takes such an active interest in finding good service. On the other hand, if a contractor gives you a hard time with these questions, you probably want to find someone else.  

Related Projects in West Islip, NY

HomeAdvisor Community Rating

Overall Rating:

West Islip Addition & Remodeling Contractors are rated 4.9 out of 5 based on 217 reviews of 217 pros.

The HomeAdvisor Community Rating is an overall rating based on verified reviews and feedback from our community of homeowners that have been connected with service professionals. See individual business pages for full, detailed reviews.


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Things to Consider Before You Start Your Basement Makeover:

What features do you want in your basement?

  • Bathroom(s)
  • Bedroom(s)
  • Laundry
  • Storage
  • Stairway
  • Office
  • Other

What type of design preparation has been done?

    Do you provide these professional services?

    Find out how HomeAdvisor can help your business

    See Local Demand

    See Recent Leads

    Recent Job Requests for Addition & Remodeling Contractors in West Islip, NY

    • Project Location: West Islip, NY
      Date: 01/10/24
      Design Preparation: None/want recommendation
      What features do you want in your basement? (Check all that apply): Bathroom(s)
      What features do you want in your basement? (Check all that apply): Office
      What features do you want in your basement? (Check all that apply): Bedroom(s)
      Comment: Interested in refinishing basement into living area that includes bathroom, bedroom and potentially small kitchen

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