Contact us now for your project evaluation at (516) 727-3060 – CALL US

TCR Builders

Trusted general contractor for custom home additions and extensions

Transform your current house into your dream home. Serving Nassau and Suffolk for 20+ years, we master structural expansions and second-story additions—managing every detail from permits to premium finishes.

Start Your Home Extension

Real Homes. Ultimate Transformations

Take a look at our latest custom home additions in Nassau and Suffolk.

Years Experience

Investment Projects

Clients Support

Best roofing company in West Islip
Expertise

Why choose a specialized general contractor for your expansion?

Adding to a home is far more complex than most homeowners realize. It demands deep knowledge of local zoning laws, structural engineering, and precise framing techniques that integrate seamlessly with existing foundations. TCR Builders isn’t simply a renovation company—we’re a full-service general contractor managing the entire lifecycle of your project.

View more

From initial feasibility assessments through final inspections, we ensure that new structures align perfectly with your home’s existing architecture, plumbing, and electrical systems. Our 20 years of experience across Nassau and Suffolk County means we understand the unique building codes and permit requirements that govern Long Island construction. We coordinate with architects, engineers, and inspectors to deliver expansions that are not only beautiful but structurally sound and compliant with all local regulations.

Structural expertise

Local zoning knowledge ensures compliant, seamless expansions

foundation

Engineering precision

Framing techniques that integrate with existing foundations

overview

Full-service management

We coordinate permits, inspections, and all regulatory requirements

About Us
Services

Expert home expansion services

Home extension and additions that add real value 

Ground

Home extensions for every need

Rear extensions, side additions, master suites, family rooms

Explore
Best roofing company in West Islip
Vertical

Second floor additions

Double your living space on smaller lots efficiently

Explore
Best roofing company in West Islip
Attic

Dormers and shell conversions

Rear extensions, side additions, master suites, family rooms

Explore
Best roofing company in West Islip
Remodel

Garage
conversions

Transform underutilized storage into high-value living space.

Explore
Best roofing company in West Islip
Interior

Complete interior transformations

A new addition deserves modern interiors to match

Best roofing company in West Islip

Kitchen remodeling for modern living

Open concept designs, custom cabinetry, islands

View more
Best roofing company in West Islip

Bathroom renovations with spa-likes finishes

Master en-suites, modern plumbing, luxury details

View more
Best roofing company in West Islip

Basement finishing for extra living space

Recreational spaces, home theaters, storage solutions

View more
Best roofing company in West Islip

Expert roofing for complete weather defense

Reliable roof replacements that ensure lasting durability for your property

View more
Process

From concept to construction

We guide you through every phase with transparency and expertise. Your vision becomes reality through careful planning and skilled execution.

Get a Free Estimate
Best roofing company in West Islip

Consultation and feasibility assessment

We evaluate your property, budget, and expansion possibilities thoroughly

Best roofing company in West Islip

Design and permit acquisition

Architectural plans and complex paperwork handled across Nassau and Suffolk

Best roofing company in West Islip

Construction and project management

Expert framing and building with minimal disruption to your home

Best roofing company in West Islip

Final completion and satisfaction guarantee

Walkthrough inspection and your peace of mind guaranteed

Projects

Our Recent Projects

Browse our portfolio of custom home extensions and renovations in Nassau and Suffolk County. See why neighbors in Garden City, West Babylon, and beyond trust us with their dream homes.

Home Extension Halesite

Halesite

Home Extension / Addition
$ View Project
Home Extension Bay shore

Bayshore

Accessory Apartment
$ View Project
DORMER BAY SHORE PROJECT PORTFOLIO

Valley Stream

Dormer Project
$ View Project
tcr custom home freeport project

Freeport

Custom Home
$ View Project
DJI 0588

Levittown

Second Floor Addition
$ View Project
DJI 0588

Levittown

Second Floor Addition
$ View Project
Home Extension Halesite

Halesite

Home Extension / Addition
$ View Project
fotografía gastronómica en el salvador Cafetería Alquimia

Bayshore

Home Extension
$ Ver más
205 babylon tcr builders project f

West Babylon

Second Floor Addition
$ Ver más
tcr custom home freeport project

Freeport

Custom Home
$ View Project
Blog TCR

Expert Insights for Your Long Island Home Transformation

Building your dream space shouldn’t be a journey into the unknown. 

View All Expert Articles
Coverage

Long Island

We serve Garden City, Mineola, West Babylon, Valley Stream, Rockville Centre, Williston Park, and throughout Nassau and Suffolk Counties with dedicated expertise

Nassau

Garden City, Mineola, Valley Stream, Rockville Centre, Williston Park and surrounding communities throughout the county

Suffolk

West Babylon and surrounding communities throughout the county

Regional

All of Long Island served with local knowledge and expertise

Best roofing company in West Islip
Testimonial

What our clients say

Real experiences from homeowners who expanded their living space

Get a Free Estimate
Coverage

Ready to expand your living space

Contact TCR Builders today for a feasibility consultation and let’s discuss your home addition project

Start your home extension 
 
 
 
 
 TCR BUILDERS 
 
 
 TCR BUILDERS
 Google star 1Google star 2Google star 3Google star 4Google star 5 
 54 Google reviews 
 
 Write a review 
  
 
 
 
 
 
 
 
 
  
 
 
 
 Posted on Google Google 
 
 Omar A. profile picture 
 
 
 Omar A. 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Very attentive, extremely trustworthy, and responsive. They met or outperformed estimates on costs and time!
  
 
  
 
 
 
 Posted on Google Google 
 
 Nelly D'Onofrio profile picture 
 
 
 Nelly D'Onofrio 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
We hired TCR Builders to build a portico to our house. The company manager communicated with us at every step of the project. The company had different specialized workers for different parts of the project. They showed up on time, were very professional and worked hard, cleaned up the area, and completed the job on time. Our portico looks even better than we initially envisioned it. We are very happy with the result. Thank you, TCR Builders!!!!
We recommend this company to anyone who wants to have a professional construction work done their house. They are simply the best!!!
  
 
  
 
 
 
 Posted on Google Google 
 
 Kasimbi Hope profile picture 
 
 
 Kasimbi Hope 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
God let me to Sam and his team. You won’t regret it to hire this company. Ernesto was an excellent project manager. From beginning to end. Thank you so much.
  
 
  
 
 
 
 Posted on Google Google 
 
 Luis Rodrigues profile picture 
 
 
 Luis Rodrigues 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
TCR crew does a very professional job from start to finish, I recommend to my family and friends to try their services, they won't regret it.
  
 
  
 
 
 
 Posted on Google Google 
 
 Sebastian LoGrasso profile picture 
 
 
 Sebastian LoGrasso 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Great Quality. Responsive. Fair Price. 10/10 Recommended!
  
 
  
 
 
 
 Posted on Google Google 
 
 Petronila Medrano profile picture 
 
 
 Petronila Medrano 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Bien bien
  
 
  
 
 
 
 Posted on Google Google 
 
 Zain Pinto profile picture 
 
 
 Zain Pinto 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
All my wife wanted for Christmas was a home gym. Sam, Ernesto and the whole crew went above and beyond and created something amazing that we are beyond proud to call our own! The gym looks even more incredible than I could have ever imagined. They worked quick but very efficiently. Everyone was very professional and respectful to our home. We are beyond happy with the final result. They really did an incredible job!
  
 
  
 
 
 
 Posted on Google Google 
 
 Michael Aguggia profile picture 
 
 
 Michael Aguggia 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
Very professional, polite and responsive. We got other estimates and they were by far the best price. I would highly recommend them!
  
 
  
 
 
 
 Posted on Google Google 
 
 Crystal Ho profile picture 
 
 
 Crystal Ho 
 
 
 
 Google star 1Google star 2Google star 3Google star 4Google star 5Trustindex verifies that the original source of the review is Google. 
TCR/Sam was recommended by a friend who had them did some work for her. At the time my friend said "they are great and very diligent". That's absolutely right on after we had TCR replaced a few windows for us. Our current windows are so old that we couldn't even identify the manufactory, Sam/TCR was able to get a very close match- no one will be able to tell they are different. Sam is great to provide professional advise but also put himself in our shoe. They work with our budget and schedule. The guys did the work were professional and clean up after themselves. Great follow up and communication from Sam and his crew. Very happy with the work. Will definitely use them again for any future project.