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Find Addition to existing structure builders in Raritan

Avatar for Sovereign Homes, LLC

Sovereign Homes, LLC

PO Box 175
4.65(
13
)
Approved Pro

Sovereign Homes, LLC

PO Box 175
4.65(
13
)
Approved Pro
Super Service Award
Customers say: True professional
16 years of experience
Free onsite estimate

Sovereign Homes, LLC, specializes in residential building. With over 30 years experience in architecture, general contracting and project management, we design and build new construction, additions as well as renovations; managing residential projects from cost estimating, zoning feasibility, to full architectural design and construction completion. Whether it's adding a second level, creating a new family room or building a new home entirely, Sovereign Homes stands ready to serve your needs and assist you in making your vision a reality.

"Sovereign Homes brought our vision to life! We added a primary suite to our home, replacing an existing crawl space attic. Rey helped us step-by-step throughout the project. We appreciated his clear communication and efforts with the town and the contractors. We love the luxurious addition to our home!"

Karl S on March 2025

Sovereign Homes, LLC, specializes in residential building. With over 30 years experience in architecture, general contracting and project management, we design and build new construction, additions as well as renovations; managing residential projects from cost estimating, zoning feasibility, to full architectural design and construction completion. Whether it's adding a second level, creating a new family room or building a new home entirely, Sovereign Homes stands ready to serve your needs and assist you in making your vision a reality.

"Sovereign Homes brought our vision to life! We added a primary suite to our home, replacing an existing crawl space attic. Rey helped us step-by-step throughout the project. We appreciated his clear communication and efforts with the town and the contractors. We love the luxurious addition to our home!"

Karl S on March 2025


Avatar for Built To Last Home Improvements, LLC

Built To Last Home Improvements, LLC

600 Valentine St
4.77(
24
)
Approved Pro

Built To Last Home Improvements, LLC

600 Valentine St
4.77(
24
)
Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
7 years of experience

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I gave this man $3000 which was 33% of the job upfront. Was supposed to give him 33% at the halfway part And 34% upon completion. But when I went to my bathroom and realized you left drugs in my bathroom and I have small children. Not like that 3000 black and small cleaners caught easy and heâ s lucky he hasnâ t been charged with nothing. Only reason that happened is because I wouldnâ t pursue charges. He obviously is a drug addict and has a problem so maybe he should get help Possibly isnâ t the option maybe rehab is. If you paid for supplies, you got ripped off wait 10 years and it will all fall apart charges for certain stuff but buys different stuff so he can use the extra money to pick himself up drugs without nobody noticing, I am so terribly in grief over this. $3000 he ran off with how is Matt doing in business and not in a jail cell"

Daniel B on July 2024

We are a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We offer a variety of General Contractor services that are customizable to each individual project. You will find us to be competitively priced, paying close attention to the details of each and every project that we are involved with. We look forward to building lasting relationships and guarantee your satisfaction!

"I gave this man $3000 which was 33% of the job upfront. Was supposed to give him 33% at the halfway part And 34% upon completion. But when I went to my bathroom and realized you left drugs in my bathroom and I have small children. Not like that 3000 black and small cleaners caught easy and heâ s lucky he hasnâ t been charged with nothing. Only reason that happened is because I wouldnâ t pursue charges. He obviously is a drug addict and has a problem so maybe he should get help Possibly isnâ t the option maybe rehab is. If you paid for supplies, you got ripped off wait 10 years and it will all fall apart charges for certain stuff but buys different stuff so he can use the extra money to pick himself up drugs without nobody noticing, I am so terribly in grief over this. $3000 he ran off with how is Matt doing in business and not in a jail cell"

Daniel B on July 2024


Avatar for WA Construct

WA Construct

200 Sheffield St STE 308
5.00(
21
)
Approved Pro

WA Construct

200 Sheffield St STE 308
5.00(
21
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
22 local quotes requested

WA Construct is a Design-and-build Construction company, provides value-added construction services to our customers by creating a successful partnership with them throughout the whole construction process. Our pledge is to establish lasting relationships with our customers by exceeding their expectations and gaining their trust through exceptional performance by every member of the construction team. WA values integrity, our practices are honest, and our conduct is legal and ethical. We try to maintain the highest level of professionalism, loyalty, and fairness in our relationships with our suppliers, sub-contractors, professional associates and customers. We always strive for win-win partnerships with customers who share our desire to design and build structures that add value to the communities in which they are built. Our employees are our most important resource in achieving our mission as we hope and believe that this path will lead to excellence.

"After meeting with multiple contractors to renovate our historic house, we chose WA construct.Their team of professionals took complete care of the entire project from start to the end and we were very happy with the high quality of their work. We highly recommend them for your next home construction project."

Lidia C on October 2022

WA Construct is a Design-and-build Construction company, provides value-added construction services to our customers by creating a successful partnership with them throughout the whole construction process. Our pledge is to establish lasting relationships with our customers by exceeding their expectations and gaining their trust through exceptional performance by every member of the construction team. WA values integrity, our practices are honest, and our conduct is legal and ethical. We try to maintain the highest level of professionalism, loyalty, and fairness in our relationships with our suppliers, sub-contractors, professional associates and customers. We always strive for win-win partnerships with customers who share our desire to design and build structures that add value to the communities in which they are built. Our employees are our most important resource in achieving our mission as we hope and believe that this path will lead to excellence.

"After meeting with multiple contractors to renovate our historic house, we chose WA construct.Their team of professionals took complete care of the entire project from start to the end and we were very happy with the high quality of their work. We highly recommend them for your next home construction project."

Lidia C on October 2022


Avatar for Handy Pro Home Improvement Painting

Handy Pro Home Improvement Painting

21 Park Ave
4.83(
12
)
Approved Pro

Handy Pro Home Improvement Painting

21 Park Ave
4.83(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
21 local quotes requested

Handy Pro Services is a family-owned and operated business with over 25 years of experience improving and transforming homes. We specialize in a wide range of home improvement services, delivering reliable craftsmanship and professional results at an affordable price. Our team takes pride in attention to detail, clear communication, and making sure every project is completed to the highest standard. Whether it’s repairs, upgrades, or full renovations, we’re here to bring your vision to life. Contact us today to start your next project!

"Edwin and his crew were an awesome find for our family!! We just moved to NJ from Arizona, and we have been searching for a painter to help with many projects around our new home. Edwin just completed our master bath paint, and it turned out beautiful. He did walls, ceiling, baseboards/trim, and the bathroom door. We are excited to hire them again for our future projects!"

Robert B on November 2020

Handy Pro Services is a family-owned and operated business with over 25 years of experience improving and transforming homes. We specialize in a wide range of home improvement services, delivering reliable craftsmanship and professional results at an affordable price. Our team takes pride in attention to detail, clear communication, and making sure every project is completed to the highest standard. Whether it’s repairs, upgrades, or full renovations, we’re here to bring your vision to life. Contact us today to start your next project!

"Edwin and his crew were an awesome find for our family!! We just moved to NJ from Arizona, and we have been searching for a painter to help with many projects around our new home. Edwin just completed our master bath paint, and it turned out beautiful. He did walls, ceiling, baseboards/trim, and the bathroom door. We are excited to hire them again for our future projects!"

Robert B on November 2020


Avatar for JAC HOME IMPROVEMENTS, LLC.

JAC HOME IMPROVEMENTS, LLC.

4 Bank St
5.00(
5
)
Approved Pro

JAC HOME IMPROVEMENTS, LLC.

4 Bank St
5.00(
5
)
Approved Pro
12 local quotes requested
10 years of experience

JAC is committed to doing superior work, without exception. We've purposely remained a smaller company, as it's better to have fewer jobs and do them well than to have a ton of work and be average. This philosophy is a big reason builders and home owners come to us. Simply put, we're really good at remodeling homes. The reputation our company has is built on exceptional work and an outstanding attitude. Before we get to the meat of a project, we get all our ducks in a row. That's what makes our work stand out.

"kind, mannerly talented team.Kept to schedule, very clean. A picture is worth a thousand words…"

susan B on July 2025

JAC is committed to doing superior work, without exception. We've purposely remained a smaller company, as it's better to have fewer jobs and do them well than to have a ton of work and be average. This philosophy is a big reason builders and home owners come to us. Simply put, we're really good at remodeling homes. The reputation our company has is built on exceptional work and an outstanding attitude. Before we get to the meat of a project, we get all our ducks in a row. That's what makes our work stand out.

"kind, mannerly talented team.Kept to schedule, very clean. A picture is worth a thousand words…"

susan B on July 2025


First Class Building & Remodeling, LLC

94 Rutgers Avenue
4.56(
25
)
Approved Pro

First Class Building & Remodeling, LLC

94 Rutgers Avenue
4.56(
25
)
Approved Pro
Super Service Award
Customers say: True professional
34 years of experience
Free onsite estimate

First Class Building & Remodeling, LLC, was established in 1991. We are a family-owned company which includes my wife and I. We have great subcontractors, many are father and son teams, and have been with our company for over 30 years. I have 38-years of remodeling experience. We can handle any project pertaining to your home from exterior to interior. We take great pride in our work and will remodel your home as if it were our own. We are committed to your complete satisfaction. We enjoy the design aspect of remodeling and you will benefit from our years of design and build experience. Our state-of-the art CAD software will help you visualize your project and begin with confidence. Our knowledge and experience in construction will assure you a well-built project that will last a lifetime! We have long-standing relationships with our subcontractors, who are dedicated and professional. We also offer a 1-year labor warranty We look forward to hearing from and working with you.

"Glenn is extremely knowledgable about what he is doing."

Susan P on September 2024

First Class Building & Remodeling, LLC, was established in 1991. We are a family-owned company which includes my wife and I. We have great subcontractors, many are father and son teams, and have been with our company for over 30 years. I have 38-years of remodeling experience. We can handle any project pertaining to your home from exterior to interior. We take great pride in our work and will remodel your home as if it were our own. We are committed to your complete satisfaction. We enjoy the design aspect of remodeling and you will benefit from our years of design and build experience. Our state-of-the art CAD software will help you visualize your project and begin with confidence. Our knowledge and experience in construction will assure you a well-built project that will last a lifetime! We have long-standing relationships with our subcontractors, who are dedicated and professional. We also offer a 1-year labor warranty We look forward to hearing from and working with you.

"Glenn is extremely knowledgable about what he is doing."

Susan P on September 2024


Avatar for Galaxy Construction

Galaxy Construction

12 Maxwell Lane
4.92(
13
)
Approved Pro

Galaxy Construction

12 Maxwell Lane
4.92(
13
)
Approved Pro
Super Service Award
Customers say: Quick response
10 local quotes requested
26 years of experience

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in home improvement but 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 guarantee your satisfaction!

"Galaxy construction did a awesome job on replacing my porch. Ed listened to what I wanted done, and did it. Every one that worked on the porch were very nice and did a great job."

Helen L on September 2025

We're a locally owned and operated company that values honesty and integrity and treats your home as if it were our own. We specialize in home improvement but 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 guarantee your satisfaction!

"Galaxy construction did a awesome job on replacing my porch. Ed listened to what I wanted done, and did it. Every one that worked on the porch were very nice and did a great job."

Helen L on September 2025


Avatar for American Home Remodeling Inc

American Home Remodeling Inc

89-91 Coit Street
4.58(
599
)
Approved Pro

American Home Remodeling Inc

89-91 Coit Street
4.58(
599
)
Approved Pro
Super Service Award
Customers say: Quality work
340 local quotes requested
31 years of experience

American Home Remodeling is a family owned and operated full service remodeling and renovation company. You will work directly with an owner from the initial estimate process to the completion of your job! We offer complete home services with over 40 years of remodeling experience. We have completed thousands of projects with one simple goal: quality workmanship and great prices. We have an experienced team who specialize in premium product lines for roofing replacement, Vinyl siding and insulation, replacement windows, masonry walkways and patios, stone and brick face, kitchen and bathroom renovations, and more. We offer 100% Financing with various different programs tailored to your budget and needs. At American Home we take great pride in our work and are completely committed to customer satisfaction! American Home Remodeling is licensed and fully insured in New Jersey and parts of New York to operate as a home remodeling company. Our licenses include The New Jersey Department of Banking and Insurance, and a registration with The New Jersey, New York, and Connecticut Division of Consumer Affairs. We respectfully ask when scheduling an estimate that all homeowners please be present. Our reasoning is due to our estimates being concise, descriptive, and hopefully educational in the home remodeling field. We feel when researching a home improvement contractor, allowing us to interact and provide information to all parties involved works best! Thank you for giving American Home Remodeling the opportunity to be considered as your next home improvement specialist! We will work hard to earn your business and look forward to servicing you on your next home project!

"They called scheduled an appointment. Then canceled due to rain. Scheduled another appointment then never showed up."

v B on April 2024

American Home Remodeling is a family owned and operated full service remodeling and renovation company. You will work directly with an owner from the initial estimate process to the completion of your job! We offer complete home services with over 40 years of remodeling experience. We have completed thousands of projects with one simple goal: quality workmanship and great prices. We have an experienced team who specialize in premium product lines for roofing replacement, Vinyl siding and insulation, replacement windows, masonry walkways and patios, stone and brick face, kitchen and bathroom renovations, and more. We offer 100% Financing with various different programs tailored to your budget and needs. At American Home we take great pride in our work and are completely committed to customer satisfaction! American Home Remodeling is licensed and fully insured in New Jersey and parts of New York to operate as a home remodeling company. Our licenses include The New Jersey Department of Banking and Insurance, and a registration with The New Jersey, New York, and Connecticut Division of Consumer Affairs. We respectfully ask when scheduling an estimate that all homeowners please be present. Our reasoning is due to our estimates being concise, descriptive, and hopefully educational in the home remodeling field. We feel when researching a home improvement contractor, allowing us to interact and provide information to all parties involved works best! Thank you for giving American Home Remodeling the opportunity to be considered as your next home improvement specialist! We will work hard to earn your business and look forward to servicing you on your next home project!

"They called scheduled an appointment. Then canceled due to rain. Scheduled another appointment then never showed up."

v B on April 2024


Avatar for AW Martin Construction Inc

AW Martin Construction Inc

614 US-130 S
4.78(
50
)
Approved Pro

AW Martin Construction Inc

614 US-130 S
4.78(
50
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
276 local quotes requested

A.W. Martin Construction, Inc. has over 26 years experience working with clients to build their home remodeling and improvement dreams into energy efficient, Eco-friendly reality. Our proprietary process and reliable supplier list help you select materials, fixtures, and designs from a wide range of choices. We handle all permitting and township inspection headaches with little or no owner involvement. Our experienced design staff can help you create a complete interior design for your remodeling needs down to the last sustainable detail. We are fully insured and state licensed, with an additional IICRC Certification as a Water Mitigation Specialist on call 24 hours a day. Email: info@awmartin.com, Website: awmartin.com

"This company is terrible and talks a good game to get your money! Never shows up to job site acts like they care don’t have good workers and is very overpriced! WATCH OUT!"

Fitzroy P on October 2025

A.W. Martin Construction, Inc. has over 26 years experience working with clients to build their home remodeling and improvement dreams into energy efficient, Eco-friendly reality. Our proprietary process and reliable supplier list help you select materials, fixtures, and designs from a wide range of choices. We handle all permitting and township inspection headaches with little or no owner involvement. Our experienced design staff can help you create a complete interior design for your remodeling needs down to the last sustainable detail. We are fully insured and state licensed, with an additional IICRC Certification as a Water Mitigation Specialist on call 24 hours a day. Email: info@awmartin.com, Website: awmartin.com

"This company is terrible and talks a good game to get your money! Never shows up to job site acts like they care don’t have good workers and is very overpriced! WATCH OUT!"

Fitzroy P on October 2025


TJG Construction

Based In
New on HomeAdvisorNew on HomeAdvisor
Approved Pro

TJG Construction

Based In
New on HomeAdvisorNew on HomeAdvisor
Approved Pro
10 local quotes requested
Free onsite estimate

My name is Tony Gallo I specialize in additions, kitchens and baths, basements, windows and doors top to bottom renovations. I'm an owner-operator in business for twenty six years. I work with the men to assure all work is completed to the highest standards.

My name is Tony Gallo I specialize in additions, kitchens and baths, basements, windows and doors top to bottom renovations. I'm an owner-operator in business for twenty six years. I work with the men to assure all work is completed to the highest standards.

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FAQs for addition to existing structure building service projects in Raritan, NJ

Yes, hidden rooms are legal, as long as they meet all local building regulations. If you sell your house, most states require homeowners to disclose full houseplans, which would include any hidden rooms.

If your secret room is a safe room, it should contain a means of communication aside from a cell phone, such as a shortwave radio. You should also have plenty of drinking water, a portable generator, emergency food supplies, blankets, pillows, flashlights, batteries and a first aid kit.

Any time you update your home’s square footage, you increase its value, but a secret room is a niche feature that doesn't rank high on every buyer’s list of must-haves. Investing your money in remodeling more common living areas like bedrooms, bathrooms, or kitchens will have a higher ROI than adding a secret room. Many secret rooms can act as entertainment spaces (think a game room or wine cellar) or quiet spaces (a library or study), so when building your secret room you may want to consider its versatility for when you’re ready to sell.

The Raritan, NJ 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.

  • A renovated kitchen with a waterfall island

    HomeAdvisor’s DIY Kitchen Remodel Cost Guide looks at the cost of buying supplies and doing the work yourself. Find the key cost factors and how to cut expenses.

  • Secret room within bookcase

    HomeAdvisor's expert guide walks you through the cost to build a secret room, whether you're creating a safe room for security or a fun space to fulfil your childhood fantasies. Use this guide to help plan your secret room project and explore room, concea

  • outdoor patio bar

    Explore the cost to build a bar in your home and learn how materials, wet vs. dry bars, and labor costs influence the total price of your project.