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Top-Rated Addition to existing structure builders in Miller Place - Updated Nov 2026

Avatar for Arthur DeRosa Building and Remodeling
Arthur DeRosa Building and Remodeling
4.7(
13
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

In business since 1986

Free estimates

Customers say: True professional

"

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.







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. 

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. 

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.

I would not hesitate to recommend Art DeRosa & Co for any planned New House and/or House Renovation of any kind.


"
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+20

Response time2 days
4 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Alta Renovations Corp
Alta Renovations Corp
5.0(
30
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"Excellent! Alta Renovations did my bathroom from the studs out. Tile, sheetrock, floor, vanity and the plumbing and towel hardware. The job was was in a co-op, with very frustrating "rules" and "requirements ". Most contractors would not want to participate (paperwork, time schedules and parking restrictions). Jose, the owner of Alta, abided by all the rules, whiles still keeping a smile!!! His workers worked neatly and orderly, knew exactly what had to be done, and did it. Very pleased. I'm recommending him to all my ? ? ? ? ?"
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+26

Response time8 hrs
22 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for A.S.M. Home Improvements
A.S.M. Home Improvements
5.0(
12
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"We cannot say enough about ASM Home Improvement. The owner Anthony was absolutely amazing every step of the way. First he put our mind at ease to what we wanted was not only possible but was going to be great and great it was ! Him and his crew were professional and sincerely cared about the job. The workmanship was top notch. Anthony’s talent to make our deck beautiful truly showed and we absolutely love it ! We will hire Anthony and his crew again for our next project and highly recommend him and his company. He will make your vision a reality!"
Remodeling
Remodeling
Remodeling
Remodeling
2 of 2
fire pit

+48

Response time11 hrs
11 neighbors recently requested a quote
Recommended by58%of homeowners
Avatar for Patzan Home Improvement Inc
Patzan Home Improvement Inc
5.0(
6
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

In business since 2008

Emergency services offered

Customers say: True professional

"We are very happy and satisfied with the projects completed by Patzan at our home. Mr. Patzan is very professional, knowledgeable and pays great attention to detail to deliver a good durable, functional and great look looking finish at a decent price. Mr. Patzan Communication is excellent and he answers all my questions. We did two projects with Patzan and we are planning my our next one with Patzan. I really recommend this company."
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+29

5 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Premier Home Remodeling & Design
Premier Home Remodeling & Design
3.9(
25
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

In business since 2019

Free estimates

Small jobs welcome

"Charlie and Charles are easy to work with, responsive and attentive to detail. They remodeled four bathrooms, replaced all interior doors, and made various other improvements in our home. We were extremely satisfied with the one-stop shop nature of their business. We were also impressed with their high-end selection of tile. We would definitely work with them again and recommend them to anyone looking for a professional and down-to-earth contractor."
custom niche
vanity and tops
vanity and tops
cabinets
mirror

+53

Response time2 days
Response rate87%
11 neighbors recently requested a quote
MGT Construction, Corp.
4.1(
17
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Excellent - Provider made appointment to go over the work to be completed. He was prompt, courteous & his workers were neat & installed flooring to my satisfaction. He was involved with every step of the project. It was a pleasure working with this provider,"
Greenport Second Floor Addition
Orient Complete Ground up House
Greenport Complete Ground Up House
Kitchen Remodeling Project
Orient Complete House Build - Bathrooms

+172

Response time1 day
3 neighbors recently requested a quote
Recommended by75%of homeowners
CHELSEA HOME REMODELING INC
5.0(
1
)
Addition to Existing Structure - Build

Serving Miller Place, NY and surrounding areas

Approved

In business since 1986

Free estimates

Emergency services offered

"The installers arrived on time, were immaculate and the tile job was perfect. The slab was uneven but they somehow managed to pit in a perfectly level floor. The employees are very pleasant and professional. They came highly recommended by Cancos Tile, which is how I found them."
13 neighbors recently requested a quote
Recommended by100%of homeowners
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FAQs for addition to existing structure building service projects in Miller Place, NY

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Miller Place, 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.