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Find Second story addition builders in Central Islip

Avatar for Sentri Homes

Sentri Homes

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Approved Pro

Sentri Homes

New on HomeAdvisorNew on HomeAdvisor
Approved Pro
1578 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.


rams home improvement

No reviews yet

rams home improvement

No reviews yet
41 years of experience

work alone or with 1 or 2 helpers.charge by the hour or the amount of work

work alone or with 1 or 2 helpers.charge by the hour or the amount of work


Avatar for Countywide Tile

Countywide Tile

5.00(
2
)

Countywide Tile

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

The Countywide Tile Experience: From Start to Finish From a simple bathroom vanities to doing a full-scale home renovation, Countywide Tile is the complete “one-stop” source for all your needs. We specialize in kitchens, baths, built-ins, butler’s pantries, wall units, bars, home office, mud and laundry rooms, fire place surrounds and so much more. We are a service driven team at Countywide Tile; we have an amazing reputation for our outstanding design team, quality and workmanship. Offering our clients a truly one of a kind experience with visual aids to truly bring your projects to life right before your eyes. We feature a wide range of cabinetry, counter top materials, the leading manufactures in fixture and hardware and products to suit every taste, project size and budget.

The Countywide Tile Experience: From Start to Finish From a simple bathroom vanities to doing a full-scale home renovation, Countywide Tile is the complete “one-stop” source for all your needs. We specialize in kitchens, baths, built-ins, butler’s pantries, wall units, bars, home office, mud and laundry rooms, fire place surrounds and so much more. We are a service driven team at Countywide Tile; we have an amazing reputation for our outstanding design team, quality and workmanship. Offering our clients a truly one of a kind experience with visual aids to truly bring your projects to life right before your eyes. We feature a wide range of cabinetry, counter top materials, the leading manufactures in fixture and hardware and products to suit every taste, project size and budget.


Long Island Restoration And Construction, Inc.

No reviews yet

Long Island Restoration And Construction, Inc.

No reviews yet
13 years of experience

Long Island Restoration And Construction, Inc.'s Proprietor has been involved for over 30 years in all aspects of Construction, Commercial Building and Residence Code; from large General Contracting Projects to all phases of Home Owners’ House Renovation & Restoration Services. LIRCI also has Licensed Electricians & Plumbers to have on-site. Anything that you need done, my Company will perform, at an economical, competitive price.

Long Island Restoration And Construction, Inc.'s Proprietor has been involved for over 30 years in all aspects of Construction, Commercial Building and Residence Code; from large General Contracting Projects to all phases of Home Owners’ House Renovation & Restoration Services. LIRCI also has Licensed Electricians & Plumbers to have on-site. Anything that you need done, my Company will perform, at an economical, competitive price.


M4 Interiors

No reviews yet

M4 Interiors

No reviews yet
11 years of experience

M4 Interior is New York based multi-disciplinary interior architecture and design studio specializing in residential and commercial renovation planning, design and project management. Our design process is focused on attention to detail, consistency of style and timeless finish and material choices that create a vibe of luxury and elegance. We handle projects with passion and a fair amount of planning to leave no room for mistakes. Over the years we have built a strong team of professionals dedicated to delivering the highest standard of services and product offerings, in order to make sure your investment is one of the best you have ever made.

M4 Interior is New York based multi-disciplinary interior architecture and design studio specializing in residential and commercial renovation planning, design and project management. Our design process is focused on attention to detail, consistency of style and timeless finish and material choices that create a vibe of luxury and elegance. We handle projects with passion and a fair amount of planning to leave no room for mistakes. Over the years we have built a strong team of professionals dedicated to delivering the highest standard of services and product offerings, in order to make sure your investment is one of the best you have ever made.


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


RB PAVERS OF NY INC.

No reviews yet

RB PAVERS OF NY INC.

No reviews yet

Family owned company. Hardscaping pavers, blue stone walkways and steps, Any masonry jobs.

Family owned company. Hardscaping pavers, blue stone walkways and steps, Any masonry jobs.


Ernest Construction Inc

No reviews yet

Ernest Construction Inc

No reviews yet
22 years of experience

At Ernest Construction Inc., we provide beautiful remodeling, refurbishing, and specialty construction jobs tailor fit to your specific needs and budget.

At Ernest Construction Inc., we provide beautiful remodeling, refurbishing, and specialty construction jobs tailor fit to your specific needs and budget.


GJW Construction, LLC.

5.00(
1
)

GJW Construction, LLC.

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

★HOME IMPROVEMENT SPECIALIST★Reliable Licensed contractor with 20 years experience. Specializing in home improvements and repairs. Quality Work and Fair prices : Including: Kitchen and bathroom remodels, plumbing and electrical repairs, sheet rock and taping, paint, tile, flooring, all phases of carpentry, handyman work, property management, and more. All work completed in a neat and orderly fashion. If you are interested in speaking with us about your next Project Contact us today GJW CONSTRUCTION, LLC

★HOME IMPROVEMENT SPECIALIST★Reliable Licensed contractor with 20 years experience. Specializing in home improvements and repairs. Quality Work and Fair prices : Including: Kitchen and bathroom remodels, plumbing and electrical repairs, sheet rock and taping, paint, tile, flooring, all phases of carpentry, handyman work, property management, and more. All work completed in a neat and orderly fashion. If you are interested in speaking with us about your next Project Contact us today GJW CONSTRUCTION, LLC


Noval Enterprises LLC

3.00(
1
)

Noval Enterprises LLC

3.00(
1
)
14 years of experience

Construction Business

Construction Business

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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.