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Find Addition to existing structure builders in Port Jefferson Station

Angi Approved
In business since 2008
Free estimates
Emergency services offered
"Remodeled our bathroom, kitchenette, and resolved other unforeseen issues. The remodeling crew did an excellent job! What we loved best was the accommodations, arrived on time, reasonably priced, and understood our remodeling needs. Would hire again for other home remodeling."
Angi Approved
In business since 1992
Free estimates
Customers say: Quick response
"Friendly, low price, and best of all the painter, Francisco, is a REAL professional who’s not about doing a slipshod job and leaving. He took as many days as he needed at a flat rate and ensured the job was top quality."
Angi Approved
In business since 2000
Free estimates
Customers say: Quality work
"He has been fantastic!"

Angi Approved
In business since 2016
Free estimates
Warranties offered
"Ronald and his Team did an excellent job for a very good price. Very professional. Pointed out some things that needed attention and then took care of it. The workmanship and customer service is better than any other craftman I have ever hired. I will keep Exterior Team Home Service number available to recommend to anyone that asks if "I know someone who...." I trust Exterior Team Home and will use them in the future."
Angi Approved
In business since 2023
Free estimates
Customers say: Quick response
"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Angi Approved
In business since 2005
Free estimates
Customers say: Quick response
"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Angi Approved
In business since 1990
Free estimates
Emergency services offered
"Completed beyond on expectations. Total Transformation. One comment by our neighbors - You have raised the bar for the community."
Angi Approved
Free estimates
Emergency services offered
Warranties offered
"The shower in my master bathroom had a leak behind the wall and needed to be fixed. I didn't want a total redo or a "one day" fix. After interviewing other contractors I chose Steven Kaplan. He understood what I wanted and expected. The shower leak caused unseen rot behind the wall and into the tub deck. John, Steven's (carpenter) turned a minus into a plus by repairing the damage and adding a shower bench. Steven's crew John and Mario were clean, neat and respectful of my home. They preform quality, professional work at a reasonable cost."

Angi Approved
In business since 2025
Free estimates
Warranties offered
"Will is one of the best contractor I worked with, he is very detailed oriented, on schedule, great communication, very responsive, he try his best to do the right thing. He doesn’t use cheap materials or try to cut corners. I will 100 % recommend him to my family and friends. "
The Port Jefferson Station, NY homeowners’ guide to addition to existing structure building services
From average costs to expert advice, get all the answers you need to get your job done.

Planning a home addition? Discover what to expect during the process, including design choices, permits, construction timelines, and key factors that impact your project’s success.

Looking to vault a ceiling? Here’s how much it costs, what factors affect cost, and what to expect.

Discover how much porcelain countertops cost to install based on factors such as their size, materials, add-ons, and local labor rates.

Budget for bedroom remodel costs based on factors such as bedroom size, remodel type, features, materials, labor, and more.

Use this guide to budget for kitchen island costs, including island style and shape, customizations, countertop options, professional labor, and more.

Budget for sunroom addition costs based on factors such as room type, site prep, professional labor, features, permits, prefab vs. custom designs, and more.
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