Add On to Your Home

Hire us to build a home extension or dormer in the Suffolk County, New York area

If you need more space in your home, you can add a new room instead of moving into a new house. Whether you want to add a home office or guest room, you can rely on Keenan Custom Homes for first-rate home extension services. We have over 20 years of experience completing home extension and dormer construction projects for homeowners throughout Suffolk County, New York and the surrounding areas.

You can depend on us to add to your kitchen, build an elegant sunroom, create a home dormer or build any other type of addition. Speak with the owner of our company today to request a free estimate.

We can build your addition from the ground up

Our crew can take care of almost every part of your new home extension project. We will...

  • Complete any necessary concrete work
  • Put together a sturdy frame
  • Hang all the drywall
  • Install the roof

For unmatched Irish craftsmanship on your new home dormer or addition, turn to Keenan Custom Homes. Reach out to us now to schedule our services.

FAQs

Got a question? We’re here to help.

  • What are extensions and dormers, and how can Keenan Custom Homes help with them?

    Extensions are extra rooms or spaces added to your home. Dormers are window features that stick out from a sloped roof, giving you more space and light upstairs. Keenan Custom Homes can build these for you, making your home bigger and brighter.

  • Will adding an extension or dormer to my home be a long process?

    The time it takes to add an extension or dormer can vary, but Keenan Custom Homes aims to do it as quickly as possible. We plan carefully so that we can work efficiently, but we also take enough time to make sure everything is done right.

  • Do I need to get permission to add an extension or dormer to my home?

    Most of the time, yes. You usually need to get permission from local authorities to change your home's structure. Keenan Custom Homes can help you understand what's needed and assist with getting the necessary approvals.

  • Can Keenan Custom Homes match the new extension or dormer to the rest of my house?

    Absolutely. We will look at your current home's design and materials and will match your new extension or dormer to it. The goal is to make it look like it was always part of your home.

  • How much will it cost to add an extension or a dormer?

    The cost can vary depending on the size and details of the project. Keenan Custom Homes will talk with you about what you want, give you a clear price before we start, and work to keep within your budget.

  • Will Keenan Custom Homes take care of the inside finishing of the extension or dormer, or is that separate?

    We handle the whole project from start to finish. This includes all the outside work and the inside finishing, like electrical work, plumbing, and painting.

  • Can an extension or dormer add value to my home?

    Yes, it can. More space and light can make your home more attractive to future buyers. Keenan Custom Homes builds extensions and dormers that not only meet your needs but can also be a good investment for the future.

  • What if I'm not sure what kind of extension or dormer I want?

    That's fine. Keenan Custom Homes can show you different options and talk about what each one could look like on your home. We will help you choose the best one for your space and budget.

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