Top-rated second story addition builders.

Get matched with top second story addition builders in Central Islip, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Second story addition builders in Central Islip

Avatar for Sentri Homes

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
1913 local quotes requested
2 years of experience

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Sentri Homes is a full-service contractor delivering high-end home additions, whole-home remodels, new custom builds, luxury kitchens, structural framing, roof replacements, and every major renovation. We assign a dedicated project manager to every job, deliver meticulous craftsmanship with clear communication, and back our work with an industry-leading warranty to ensure complete peace of mind on your largest investments. Our in-house team of licensed builders and master craftsmen consistently earns 5-star reviews by turning big visions into stunning, high-value homes—when you need one trusted partner who truly does it all, we’re the proven choice.

Project Management Inc.

No reviews yet

Project Management Inc.

No reviews yet
12 years of experience

Don't start your renovation project without consulting with Project Management Inc. We protect you against cost over runs, delays and contractor mistakes.

Don't start your renovation project without consulting with Project Management Inc. We protect you against cost over runs, delays and contractor mistakes.

Jonathan Alexander & Sons Moving

No reviews yet

Jonathan Alexander & Sons Moving

No reviews yet
50 years of experience

Alexander & Son's Moving has over 30 years of experience in the moving industry. We are a professional family owned business that will handle your items with care from beginning to end. We will make the relocation process an easy one. We have reputable references, please contact us for more information.

Alexander & Son's Moving has over 30 years of experience in the moving industry. We are a professional family owned business that will handle your items with care from beginning to end. We will make the relocation process an easy one. We have reputable references, please contact us for more information.

A.Caputo Plumbing & Heating Inc

5.00(
1
)

A.Caputo Plumbing & Heating Inc

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

All phases of plumbing & heating and air conditioning, including high efficiency boilers. New construction and renovations. We provide fast reliable service at affordable prices, we accept all major credit cards. We are certified Navien boiler, water heater installers and are Navien trained service specialists. Call us for a price on a on demand high eff boiler water heater combo 93% efficient with a national grid rebate. Lic and insured

"Andrew was very knowledgeable, efficient, clean, affordable and helpful. He explained everything to me as he worked on the projects I hired him for. He also took extra time to look into other issues I was having that needed parts ordered. He priced them for me and let me know he could come back to install. I will have him come back and would refer him to friends & family."

Jeanette C on September 2019

All phases of plumbing & heating and air conditioning, including high efficiency boilers. New construction and renovations. We provide fast reliable service at affordable prices, we accept all major credit cards. We are certified Navien boiler, water heater installers and are Navien trained service specialists. Call us for a price on a on demand high eff boiler water heater combo 93% efficient with a national grid rebate. Lic and insured

"Andrew was very knowledgeable, efficient, clean, affordable and helpful. He explained everything to me as he worked on the projects I hired him for. He also took extra time to look into other issues I was having that needed parts ordered. He priced them for me and let me know he could come back to install. I will have him come back and would refer him to friends & family."

Jeanette C on September 2019

Avatar for A G Reliable Remodeling

A G Reliable Remodeling

4.29(
7
)

A G Reliable Remodeling

4.29(
7
)
Customers say: True professional
27 years of experience

Reliable Remodeling is a full service remodeling company in business for over 20 years comitted to great service, great value and excellent work.

"Did a good job on the kitchen cabinets and walls came out good new floor installed came out good kitchen window was installed fine but the wood trim very disappointed when removing wood trim to replace window installation was good but when trim was put back on what a disappointment they put the trim on and siliconed the openings so mwater and air would not come in silicone all over the wood nail holes were covered with silicone instead of wood filler wife and I were very disappointed he was suppose to clean and remove soot from wood and then refinish per insurance estimate he told me he did not put it in his estimate so in order to fix it I would have to pay to have it done the quality of the trim is not professional work see enclosed photos"

Homeowner on May 2022

Reliable Remodeling is a full service remodeling company in business for over 20 years comitted to great service, great value and excellent work.

"Did a good job on the kitchen cabinets and walls came out good new floor installed came out good kitchen window was installed fine but the wood trim very disappointed when removing wood trim to replace window installation was good but when trim was put back on what a disappointment they put the trim on and siliconed the openings so mwater and air would not come in silicone all over the wood nail holes were covered with silicone instead of wood filler wife and I were very disappointed he was suppose to clean and remove soot from wood and then refinish per insurance estimate he told me he did not put it in his estimate so in order to fix it I would have to pay to have it done the quality of the trim is not professional work see enclosed photos"

Homeowner on May 2022

CUSTOM SPRAYING AND REGLAZING

4.73(
33
)

CUSTOM SPRAYING AND REGLAZING

4.73(
33
)
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

Reglazing of bathtubs,sinks,tiles,electrostatic painting of metal surfaces,office furniture ,metal kitchen cabinets

Reglazing of bathtubs,sinks,tiles,electrostatic painting of metal surfaces,office furniture ,metal kitchen cabinets

Pride Construction and Development Inc.

No reviews yet

Pride Construction and Development Inc.

No reviews yet

Outdoor Design Solutions

No reviews yet

Outdoor Design Solutions

No reviews yet
12 years of experience

Landscape Design & Build Services,

Landscape Design & Build Services,

E.R.B. Home Improvement

No reviews yet

E.R.B. Home Improvement

No reviews yet
17 years of experience

Licensed and Insured

Licensed and Insured

Betty Wasserman Art & Interiors Ltd

No reviews yet

Betty Wasserman Art & Interiors Ltd

No reviews yet
29 years of experience

Betty Wasserman, one of the best New York interior designers as determined by accomplishments as well as industry and media recognition, launched her design business in 1996 by synthesizing 10 years as a New York based private art dealer with a passion for design and architecture. She is committed to a warm and minimalist approach to her interiors. Known for Loft Spaces and Hamptons beach houses; she became notable in Chelsea for renovating her own loft space, which serves as a showcase and testament to her aesthetic.

Betty Wasserman, one of the best New York interior designers as determined by accomplishments as well as industry and media recognition, launched her design business in 1996 by synthesizing 10 years as a New York based private art dealer with a passion for design and architecture. She is committed to a warm and minimalist approach to her interiors. Known for Loft Spaces and Hamptons beach houses; she became notable in Chelsea for renovating her own loft space, which serves as a showcase and testament to her aesthetic.

...
Showing 1-10 of 1006
FAQs for second story addition building service projects in Central Islip, NY

For many homeowners, building up is worth the expense because it provides the extra bedrooms or living areas that can’t be accommodated within the existing footprint. A larger, updated home often commands a higher resale price, recouping a sizable share of the project cost while allowing you to stay in the neighborhood you love. Run the numbers with a real estate agent and contractor to ensure the expected return and day-to-day benefits align with your goals.

Whether it makes more sense to build up or out depends on your lot, budget, and local code. Building up preserves yard space and involves less foundation work, but you may need to vacate the home during construction. Building out avoids staircases and can proceed while you stay put; however, it encroaches on the yard and may face setback limits. Compare both options with your contractor before making a decision.

A structural engineer will first inspect the existing foundation for cracks, footings, and load capacity. Depending on the findings, the crew may pour new concrete footings, install steel or concrete piers, add reinforced beams, or tie additional rebar into the slab. These upgrades redistribute the weight of the new floor and bring the structure up to code. Your contractor will outline the specific reinforcement plan and timeline once the engineering report is complete.

The Central Islip, NY homeowners’ guide to second story addition building services

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

See all articles