
Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2010
Customers say: Quick response
"RJM designs is easy to work with, dependable, reliable, and knowledgeable. Would definitely use again."





+20


Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2010
Customers say: Quick response
"RJM designs is easy to work with, dependable, reliable, and knowledgeable. Would definitely use again."





+20

Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2020
Free estimates
Credit card accepted
We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience.\nYou will find us to be competitively priced with close attention to the details.\nOur reputation is based on service, safety, and quality, regardless of how large or small the job.\nWe look forward to building a lasting relationship and guarantee your satisfaction!\n


Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2010
Free estimates
Credit card accepted
"This Architect is customer friendly, pleasant to deal with and the price is not bad."
Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2004
Free estimates
Customers say: Quality work
"Hired them when I bought my house. Quick, efficient, and answered all questions and concerned."





Serving Port Jefferson, NY and surrounding areas
Approved
In business since 1994
Credit card accepted
Customers say: Quick response
"I am a contractor that has used ZS design for years now. Every job that I have done ZS has been available on a very level available. Their knowledge goes beyond just providing drawings. They are willing to work with you step by step as a question come about and any issues during the build occur. It’s nice to be able to make a quick call and they are immediate available. Highly recommend their services to builders/contractors and especially home owners who at times have trouble finding that necessary first step to begin their projects."





+88

Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2018
Free estimates
Emergency services offered
"Excellent Experience – Highly Recommend company. I had a great experience working with this drafting company. The team was professional, responsive, and easy to work with. A special shoutout to Collin Kelsch and Rosa Chatwin for their outstanding cooperation and attention to detail throughout the project."





+23

Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2003
Warranties offered
Small jobs welcome
"They were very informative. He did what he had to do and checked everything off the list."

Serving Port Jefferson, NY and surrounding areas
Approved
In business since 2003
Free estimates
Credit card accepted
"Excellent quality and great customer service. Very thorough with explanation of what is needed to complete this project. Still working with Nicholas on the building plans for my 2nd story deck but everything is moving well."



Serving Port Jefferson, NY and surrounding areas
Approved
In business since 1986
Free estimates
Customers say: Quick response
"<p>This is the 2nd major project I contracted Art DeRosa & Co for. The 1st being 4 years ago a major living room/family room renovation which was hugely successful. That 1st experience led me to award Art (after several other competitive quotes) this 2nd and far larger & more complex project.<br /> <br /> <br /> <br /> <br /> <br /> <br /> <br /></p> <p>Overall it went well but this was a complicated project encompassing all the typical trades and expertise of building a new luxury house but far more complicated because it was a renovation performed while we were living in the home. Dust partition walls with wood framing had to be erected in several locations in the house which included temporary doors for entering and egress in certain areas of the remaining living areas of the house in order to protect the remaining house from dust and demolition , as well as, provide privacy for us during construction. </p> <p>Experience, Experience, Experience and Professionalism, Professionalism, Professionalism are the hallmarks of Art DeRosa and company. He is a seasoned performer and pretty much seen it all. Art has such a vast amount of home construction experience in both hi-end and medium end homes that he can draw upon a wealth of knowledge in all construction disciplines to implement a fine finished result. As a former tool and die maker his penchant for hi-precision finish work yields highest quality appearances to things like moldings; trim; windows; doors; floors; etc. etc. </p> <p>This complex renovation project lasted 7 months which was within the initial time estimate given at the beginning and Art DeRosa and team were here every single day, day in and day out, bright and early during that time frame. He did not start any other projects and stayed on the job day-in and day-out even when other sub-contractors such as plumbers and electricians were on the job site excluding his people from doing any other work. Art DeRosa and team were here every single day until final signoff.</p> <p>I would not hesitate to recommend Art DeRosa & Co for any planned New House and/or House Renovation of any kind.</p> <br />"





+20
Serving Port Jefferson, NY and surrounding areas
Approved
Free estimates
Emergency services offered
Warranties offered
"MGT Construction Corporation was everything I wanted and more. They were prompt. The work was high quality. Steve Kaplan, Mario, Steve, et al were very professional and easy to work with. Steve Kaplan was excellent in following through with everything. The price was excellent. They were very knowledgeable and understood design. After it was finished, Steve followed through on offers to do some additional work as a client courtesy."





+172
From average costs to expert advice, get all the answers you need to get your job done.

Explore how much it costs to replace floor joists based on factors such as the extent of damage, number of boards, and local labor rates.

Wondering who to hire to replace a sill plate? Learn why a structural engineer and a foundation repair company are the right pros to call

Wondering who does land surveys? Learn when to call a licensed land surveyor, how surveys work, and key factors that affect cost.

Not sure who to hire to remove a load-bearing wall? See when to call a structural engineer or contractor, costs, and next steps.

Learn who checks load-bearing walls, what professionals to hire, and cost details—learn how to ensure your home’s structural safety.

Learn everything you need to know about structural engineers, what they do, and how to find residential services you can trust in this guide.