Callahan Contruction Inc.

Extensions & Dormers

At Callahan Construction Inc., we believe that a satisfied customer is our best advertisement.
That’s why we don’t advertise. All of our work is referral based.

Do you love your home but need more square footage? A dormer or extension can give you the extra living space you need and add value to your home. We will walk you through the process step by step and and make sure your designs and selections are perfectly built during each phase of construction.

Thank you for considering
Callahan Construction Inc.
for your next
residential remodeling project.

Financing Available through 

Callahan Contruction Inc.

Pergolas

At Callahan Construction Inc., we believe that a satisfied customer is our best advertisement.
That’s why we don’t advertise. All of our work is referral based.

Pergolas are a great way to add shade and style to your backyard. They can also be used to create a private oasis where you can relax and unwind. Callahan Construction Inc. offers a variety of pergola design and construction services, so you can find the perfect one for your needs and budget.

We can build pergolas in a variety of shapes and sizes, and we can also customize them with features such as built-in seating, lighting, and climbing plants. Whether you want a simple pergola to provide shade over your patio or a more elaborate pergola to create a focal point in your backyard, we can help you bring your vision to life.

If you’re interested in adding a deck or pergola to your home, contact Callahan Construction Inc. today for a free consultation. We would be happy to help you create the perfect outdoor space for your family and friends to enjoy.

Thank you for considering
Callahan Construction Inc.
for your next
residential remodeling project.

Financing Available through 

Callahan Contruction Inc.

Dormers

At Callahan Construction Inc., we believe that a satisfied customer is our best advertisement.
That’s why we don’t advertise. All of our work is referral based.

Dormers are a great way to add extra space and light to your home. They can also be used to improve the curb appeal of your property. Callahan Construction Inc. offers a variety of dormer design and construction services, so you can find the perfect one for your needs and budget.

Whether you want a simple gable dormer or a more elaborate dormer with a bay window or balcony, we can help you bring your vision to life. We use only the highest quality materials and construction methods, so you can be sure that your dormer will last for many years to come.

If you’re interested in adding a dormer to your home, contact Callahan Construction Inc. today for a free consultation. We would be happy to help you create the perfect dormer for your needs and budget.

Thank you for considering
Callahan Construction Inc.
for your next
residential remodeling project.

Financing Available through 

Make Your Home Renovation Dreams a Reality.

Contact Callahan Construction Inc. today for a free consultation!

Why Callahan Construction?

At Callahan Construction, it's our priority to not only deliver a product that meets your vision, but one that far exceeds it. Our experienced team will guide you throughout your project with suggestions and design tips to ensure we make your house the home you’ve always wanted. We strive to be a leader in our industry by offering custom designs, thinking outside-the-box to maximize the space we work with, and ultimately giving the "WOW" factor that you've always wanted in your home.

35 Years of Experience

We have over 35 years of experience in the residential remodeling industry. That means we have the knowledge and expertise to handle any project, big or small.

Licensed and Insured

We are fully licensed and insured, so you can be sure that your project is in good hands.

Suffolk License #28,8984HI
Nassau County License #H18E7400000

Quality Workmanship

We use only the highest quality materials and construction methods. Our team of highly skilled and experienced craftsmen are dedicated to providing our customers with the best possible experience and results.

Callahan Construction 

Extensions  |  Dormers  |  New Homes

Callahan Construction

About Us

At Callahan Construction, we believe that a satisfied customer is our best advertisement.
That's why we don't advertise. All of our work is referral-based.

Communication is the key to every successful home remodeling project. We will be available by cell phone through every stage of your project to answer your questions and give you our experienced opinions on all of your decisions. Your job will be done in a timely fashion, with the highest-quality materials and an attention to detail that will exceed your expectations.

We always give each customer a little something extra to remember Callahan Construction in a good way. All of the above creates long-lasting relationships with all of our clients and many happy customers.

Thank you for considering Callahan Construction for your next residential remodeling project.

Christine V.

He was knowledgeable about the material, shaping the railing to let water roll off and how to create the ovals that I wanted in the design. He was very professional and prepared when we met. He was responsive over email and text. He was too busy to start the job in May but we are thinking of hiring him when he can schedule us.

Guy B.

The price that he quoted me does not include the demolition. He was going to do the rebuilding. He was prompt. He was there when he said he would be; he is reliable. He seems knowledgeable on what he is doing; that is the reason why I went with him. He even had to drive at least forty miles to get to me. He is very available, and he is very professional.

Klaus & Maxine F.

He gave me a fabulous deal. We had a little shed roof over some concrete steps but I wanted to make a wider stoop leading to the portico with blue stone and brick with two side walls to accommodate our wide double doors. These workers always came a few minutes before their scheduled start time, sat in the drive and waited until the appointed start time and then began work at 7:30 promptly.