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Give More Appeal To Your Home With
Quality Custom Doors By Our Team

Make Your Home Stand Out With
Our Selection Of Custom Doors


Large format and patio doors are an excellent version of custom doors in Sag Harbor, NY. These can drastically change the look and feel of your place, both inside and out. Large doors allow you to bring in more natural light, connect your interior to your exterior, and give you a lovely view of your place.

While there’s a lot of work that goes into a custom door, you want to make sure the job is done by a team you can trust. Rockman Windows & Doors has the best resources available when it comes to custom doors. From quality materials to experienced manufacturers, there’s no one that does it better than our team.

If you’re looking for custom doors for your place, contact us today. We’re ready to get started on your new upgrade.



We Offer You The Best Custom Doors & Windows
For Sag Harbor, NY Homeowners


Large Format Doors

Large format doors can greatly transform your living space. We offer accordion and bi-folding style format doors that represent any design style and modern functionality. Seamlessly connect your indoor and outdoor spaces with these large doors that are a great fit for a natural home.

Our large format doors are made to be durable and energy-efficient. There’s nothing like these doors to transform your home’s interior and exterior.



Patio Doors

Make your living space a window to your personal outdoor oasis with our patio doors. Give your home more beauty with a new aesthetic custom door while also improving functionality. Our patio doors are sleek, excellently designed, and beautifully open your interior to your outdoor patio area.



The Rockman Windows & Doors Process

How We Give Every Customer A Custom
Door They Are Sure To Love


#1: Giving Quality Service To Every Customer

We know every project comes with its own setbacks and hurdles. By being very meticulous with our custom doors, there’s no issue our team can’t overcome. We’re always dedicated to ensuring the success of your custom project.



#2: Extensive Planning And Preparation

If there’s one thing we are, it’s detail-oriented. We understand the importance of focusing on the small details when it comes to a custom project. From the materials we use to the design, we dutifully walk through every step of the project to ensure its success.



#3: Putting Everything Into The Job

As the leading supplier of custom doors in the Suffolk County area, we know how to handle any job you have from us. Our team has several decades of combined experience and knowledge to ensure each project is completed without issue.



#4: Our Recipe For Each Project’s Success

Serving hundreds of architects, builders, and homeowners all over the Tri-State area, we’ve seen just about everything you can imagine when it comes to custom door projects. We approach each project with a can-do attitude and a desire to make it successful for you.




Rockman Windows & Doors Reviews

Why Customers Love Our Doors


  • Jennifer M.
    “Jason, Dave, and the team at Rockman Window and Doors are top-notch! They welcomed me into their showroom safely during a pandemic while they were undergoing a move and shared the beautiful products they offered. They helped me make a selection (a sliding door) that made sense for my design and my budget. Dave came out to our site the very next day to confirm the measurements and spoke with our contractor about the installation. All in all, it was a wonderful experience. After my first order was placed, and we found some water damage on two windows, it only made sense for me to reach back out to Rockman. Dave helped me expedite some choices quickly via a FaceTime call and some pictures of the space. If you need help navigating this confusing world of materials, custom vs. standard sizes, product lines, warranties, etc., this is your team. Extremely knowledgeable and patient. Costs are also competitive with other retailers, but in my experience, for a purchase like this, unless you’re a builder or very experienced, you need to be able to rely on top-notch service. And that’s just what these guys offer.”


  • Brad B.
    “Rockman consistently delivers exceptional results to our architectural clients throughout the Hudson Valley. Their knowledge of window and door products is deep and extensive, and their delivery and service record is second to none. Ashokan Architecture highly recommends Rockman Millwork to all who are planning new construction and renovation projects, both commercial and residential.”


  • Chris H.
    “Just the fact that customer service is very important to me, Scott Gardiner was there above and beyond answered every question I went through each and every part and made sure we were satisfied and that everything was there, Scott also did follow up visits and follow up calls, The delivery guys were also exceptional, Neat, and caring.”

5 Questions Suffolk County Homeowners
Ask About Rockman Windows & Doors

What To Look For In A Custom Door?

When it comes to a custom door, you should look for material, style, energy efficiency, and ease of operation. We’re always happy to help you with your selection.

What Happens If My Door Breaks?

Our after-sales service is here to address any issues you have after your door is installed. We work with manufacturers closely to make sure the full extent of your warranty is covered.

How Much Custom Door Experience Do You Have?

In total, our team has over 250 years of experience. We’re incredibly knowledgeable when it comes to all types of custom doors.

Will You Install Our Custom Doors?

While we do give you the custom door for your property and bring them to the job site, we do not perform the installation. However, we do provide inspections for all installed doors to ensure they’ve been installed properly.

Where Can I Learn About Rockman Windows & Doors?

Here are other pages of our website where you can learn more about our company: FAQ Blog Case Studies Careers



Are you ready to take your home to the next level?

Contact us today to schedule a consultation.

Take a walk through our virtual showroom!

Come and Visit Us!