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Find Garage remodelers in Mastic

MGT Construction Corp

Based Out Of
4.15(
13
)
•Approved Pro

MGT Construction Corp

Based Out Of
4.15(
13
)
•Approved Pro
Customers say: Quality work
70 local quotes requested

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Steven was great, was very responsive, very knowledgeable, very honest, did what he said. I would hire him again! Completed the job on time. Did quality work and very good value for money. He did extra stuff for free as a courtesy."

Vincent R on September 2025

We specialize in all phases of remodeling for your home, business, bathrooms, kitchens, finishing basements, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Steven was great, was very responsive, very knowledgeable, very honest, did what he said. I would hire him again! Completed the job on time. Did quality work and very good value for money. He did extra stuff for free as a courtesy."

Vincent R on September 2025

Avatar for Hampton Design and Build

Hampton Design and Build

P.O. Box 308
4.81(
26
)
•Approved Pro

Hampton Design and Build

P.O. Box 308
4.81(
26
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
23 years of experience

Hampton Design and Build is pleased to be partnering with HomeAdvisor to offer our full service addition, design and remodeling services to the greater East End area. We have been in business for over 30 years and we pride ourselves in our exemplary service, our craftsmanship and attention to detail. Being a full service contracting company there is no need to go anywhere else. Please call for a free estimate.

"We have done projects with different contractors, but putting an addition on to our house was by far the biggest project we had ever done. We were terrified of its breadth and complexityâ particularly as concerned making the house comfortable for my elderly parents and more accessible for my son, who uses a wheelchair. We met with several contractors and chose HDB both because their bid was more reasonable and because we had a gut feeling of trust that, fortunately for us, never ebbed throughout the process. Choosing HDB was the best decision we have ever made in the 10 years we have owned our house, and we will continue to solicit their expertise for any future work. At every step of the process they demonstrated their authenticity, integrity, empathy and expertise. For questions we had about anything, big or small, we received a response within a day. We added two and half rooms and bathrooms to ones side of the house. Based on his vast experience in our area, Dale had important, smart suggestions for modest but powerful improvements elsewhere in the house that would not have occurred to me but proved to be invaluable--and increased the value of our home dramatically. He navigated town permit issues. Cost was very reasonable and if there were any questions, he was open to discussing and adjusting. Diane had superb design instincts, which saved us from hiring another professional, and as part of the fee she sent wise suggestions for vanities, light fixtures, paint colors, rugs and more; and then ordered the items directly. Both obviously cared about us and the project and made everything as easy as possible for us. Most projects we had done previously had faltered at the end, with smaller punch list items; but as usual, Diane and Dale were responsive til the final t was crossed and I dotted. HDB is a rare company with skill and expertise but also with a passion for their work and a spirit of kindness and concern for their clients that made a house addition â something we dreaded--actually fun. Thanks HDB!"

Harriet B on November 2023

Hampton Design and Build is pleased to be partnering with HomeAdvisor to offer our full service addition, design and remodeling services to the greater East End area. We have been in business for over 30 years and we pride ourselves in our exemplary service, our craftsmanship and attention to detail. Being a full service contracting company there is no need to go anywhere else. Please call for a free estimate.

"We have done projects with different contractors, but putting an addition on to our house was by far the biggest project we had ever done. We were terrified of its breadth and complexityâ particularly as concerned making the house comfortable for my elderly parents and more accessible for my son, who uses a wheelchair. We met with several contractors and chose HDB both because their bid was more reasonable and because we had a gut feeling of trust that, fortunately for us, never ebbed throughout the process. Choosing HDB was the best decision we have ever made in the 10 years we have owned our house, and we will continue to solicit their expertise for any future work. At every step of the process they demonstrated their authenticity, integrity, empathy and expertise. For questions we had about anything, big or small, we received a response within a day. We added two and half rooms and bathrooms to ones side of the house. Based on his vast experience in our area, Dale had important, smart suggestions for modest but powerful improvements elsewhere in the house that would not have occurred to me but proved to be invaluable--and increased the value of our home dramatically. He navigated town permit issues. Cost was very reasonable and if there were any questions, he was open to discussing and adjusting. Diane had superb design instincts, which saved us from hiring another professional, and as part of the fee she sent wise suggestions for vanities, light fixtures, paint colors, rugs and more; and then ordered the items directly. Both obviously cared about us and the project and made everything as easy as possible for us. Most projects we had done previously had faltered at the end, with smaller punch list items; but as usual, Diane and Dale were responsive til the final t was crossed and I dotted. HDB is a rare company with skill and expertise but also with a passion for their work and a spirit of kindness and concern for their clients that made a house addition â something we dreaded--actually fun. Thanks HDB!"

Harriet B on November 2023

Kiwi Restorations, LLC

194 Mill Road
5.00(
2
)
•Approved Pro

Kiwi Restorations, LLC

194 Mill Road
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Mark K on February 2024

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"Shane and his crew were fantastic. From our first meeting through completion the renovation was seamless. Great attention to detail, neat, clean and respectful of my house. Finished on time and on budget. Highly recommended."

Mark K on February 2024

Avatar for Granville House Victorians L.L.C.

Granville House Victorians L.L.C.

16 Riverdale Ave
5.00(
1
)
•Approved Pro

Granville House Victorians L.L.C.

16 Riverdale Ave
5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
20 years of experience

The linkedin site will tell our Story. Clients will take advantage of Granville's in house Design capabilities with CAD. see granvillevictorians.com for examples of our work

"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Jonathan P on January 2023

The linkedin site will tell our Story. Clients will take advantage of Granville's in house Design capabilities with CAD. see granvillevictorians.com for examples of our work

"Granville House Victorians L.L.C. is extremely skilled and professional. My Victorian style house came out better than I could have dreamed. Granville took care of everything and they are extremely knowledgeable in what they do."

Jonathan P on January 2023

Avatar for Heron Home Improvement, LLC

Heron Home Improvement, LLC

96 Railroad Ave
5.00(
1
)
•Approved Pro

Heron Home Improvement, LLC

96 Railroad Ave
5.00(
1
)
•Approved Pro
3 years of experience
Free onsite estimate

Heron Home Improvement LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Prompt and professional from start to finish! It was a pleasure working with Heron as they provided a quick estimate, decorating advice and excellent craftsmanship for our kitchen backsplash."

Becky D on September 2025

Heron Home Improvement LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"Prompt and professional from start to finish! It was a pleasure working with Heron as they provided a quick estimate, decorating advice and excellent craftsmanship for our kitchen backsplash."

Becky D on September 2025

The Castellon Renovation Corp.

4 Ridgedale Ave
5.00(
1
)
•Approved Pro

The Castellon Renovation Corp.

4 Ridgedale Ave
5.00(
1
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

The Castellon Renovation Corp is proud to be a locally owned and operated company. We value honesty and integrity and treat your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bathroom, Kitchen Remodels, and major renovations we also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Milton is very trustworthy, and always on time. He doesn't try to make extra money off of you, just does the job you ask him to do"

Ronald x on July 2020

The Castellon Renovation Corp is proud to be a locally owned and operated company. We value honesty and integrity and treat your home as if it were our own. We offer a variety of General Contractor Home Improvement services that are customizable to each individual project. We specialize in Bathroom, Kitchen Remodels, and major renovations we also offer a wide range of expertise for a variety of other projects. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building lasting relationships and guaranteeing your satisfaction!

"Milton is very trustworthy, and always on time. He doesn't try to make extra money off of you, just does the job you ask him to do"

Ronald x on July 2020

Avatar for Inson Dubois Wood LLC

Inson Dubois Wood LLC

526 West 26th Street #805
5.00(
12
)
•Approved Pro

Inson Dubois Wood LLC

526 West 26th Street #805
5.00(
12
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
36 local quotes requested

Full Service Residential Design Firm that focuses on full transparency and meeting our clients budget and timeline. Impeccable attention to detail and cost analysis are our strong point. A full design team takes your project from inception to completion in record time.

"Inson is a creative genius with a superb eye. He did everything with meticulous detail and completely transformed our apartment into an amazing, gorgeous home. We enjoy entertaining, and our friends love coming over, always remarking how beautiful and inviting our home is- and that was exactly what we wanted, except Inson brilliantly upgraded our concept, within budget and on time (even with our aggressive timeline because we needed to be out of our old place and into our new within months!). Inson’s team was also great to work with - always polite and professional. We highly recommend Inson and plan on working with him again on our Hamptons home!"

Sandy T on November 2021

Full Service Residential Design Firm that focuses on full transparency and meeting our clients budget and timeline. Impeccable attention to detail and cost analysis are our strong point. A full design team takes your project from inception to completion in record time.

"Inson is a creative genius with a superb eye. He did everything with meticulous detail and completely transformed our apartment into an amazing, gorgeous home. We enjoy entertaining, and our friends love coming over, always remarking how beautiful and inviting our home is- and that was exactly what we wanted, except Inson brilliantly upgraded our concept, within budget and on time (even with our aggressive timeline because we needed to be out of our old place and into our new within months!). Inson’s team was also great to work with - always polite and professional. We highly recommend Inson and plan on working with him again on our Hamptons home!"

Sandy T on November 2021

Preferred Home Remodeling and Design, Inc.

3 Farnham Place
5.00(
10
)
•Approved Pro

Preferred Home Remodeling and Design, Inc.

3 Farnham Place
5.00(
10
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 years of experience

We have been serving the Port Jefferson Station and surrounding areas for 28 years and counting. The expert Long Island home remodeling team at Preferred Home Remodeling and Design, Inc. are here to help you turn any remodeling idea into reality and transform your house into a home that you can take pride in. Your current home has endless design and remodeling opportunities available. Let us help you design your dreams! We offer professional, friendly service and our work is meticulous. Give us a call today!

"The team was excellent. Quality work, professional and always went above and beyond to clean up each evening."

Chistine B on August 2024

We have been serving the Port Jefferson Station and surrounding areas for 28 years and counting. The expert Long Island home remodeling team at Preferred Home Remodeling and Design, Inc. are here to help you turn any remodeling idea into reality and transform your house into a home that you can take pride in. Your current home has endless design and remodeling opportunities available. Let us help you design your dreams! We offer professional, friendly service and our work is meticulous. Give us a call today!

"The team was excellent. Quality work, professional and always went above and beyond to clean up each evening."

Chistine B on August 2024

Avatar for Good to Go Maintenance Inc

Good to Go Maintenance Inc

18 KARL AVE
5.00(
9
)
•Approved Pro

Good to Go Maintenance Inc

18 KARL AVE
5.00(
9
)
•Approved Pro
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
82 local quotes requested

Good to Go Maintenance Inc has been in business for 45 years offering general construction, Repairs, and Renovation. We are insured, licensed and offer a detailed timeline with each project. We are also Roofing specialists (GAF certified roofing contractors) offering the "System Plus" lifetime material and labor warranty. (Free with every complete roof replacement).

Good to Go Maintenance Inc has been in business for 45 years offering general construction, Repairs, and Renovation. We are insured, licensed and offer a detailed timeline with each project. We are also Roofing specialists (GAF certified roofing contractors) offering the "System Plus" lifetime material and labor warranty. (Free with every complete roof replacement).

Avatar for WOOD ISLAND BROS HOME IMPROVEMENT INC

WOOD ISLAND BROS HOME IMPROVEMENT INC

28 Winding Path 11
5.00(
2
)
•Approved Pro

WOOD ISLAND BROS HOME IMPROVEMENT INC

28 Winding Path 11
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
33 local quotes requested

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Wood Island Home Improvement you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Wood Island bros. is a great business, I hired them for a bunch of repairs in my home, including kitchen and window repair. I recommend this company, very efficient and and professional."

Melva C on October 2024

Customer satisfaction is what determines our success, which is why we take a hands-on approach. When interacting with Wood Island Home Improvement you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your project needs. Contact us today for a fair and accurate estimate of your project. We look forward to adding you to our long and growing list of happy customers.

"Wood Island bros. is a great business, I hired them for a bunch of repairs in my home, including kitchen and window repair. I recommend this company, very efficient and and professional."

Melva C on October 2024

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FAQs for garage remodeling projects in Mastic, NY

A garage apartment represents a valuable addition to your property when properly constructed according to local regulations. The potential benefits include additional living space for family members, rental income possibilities, and increased property value. 

Your specific return depends on local housing market conditions, construction quality, and ongoing maintenance. Consider consulting with a real estate professional regarding potential returns in your neighborhood.

Building a garage apartment requires multiple permits, with basic residential garage permits starting at $74 in most locations. You'll need separate approvals for structural elements, electrical systems, plumbing installations, and mechanical components. 

Many jurisdictions also require specific approval for accessory dwelling units. Contact your local building department early in your planning process to understand all requirements and associated costs.

Converting an existing garage into living space presents an alternative to new construction. The feasibility depends on your garage's structural condition, foundation type, and local zoning regulations. Key considerations include insulation requirements, utility connections, and moisture control. Research local codes thoroughly, as many municipalities have specific requirements for garage conversions.

The Mastic, NY homeowners’ guide to garage remodelings

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

See all articles
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