Home Addition Services in Central New Jersey
Home additions are an incredible way to upgrade the home you love with the features you want. Not only do they benefit your home's value, but they also allow you to stay in the space you love while feeling like you're in a new home. Whether you're thinking of a multi-car garage showroom, a large pool house, or a second-story addition, searching through local contractors for home additions can feel overwhelming. However, our home addition service page is designed to empower you throughout the process.
Home Additions Services in Central NJ and Upper Bucks County
Adding to your home is not just about gaining extra square footage—it’s about enhancing the quality of your living space and creating a home that perfectly fits your family’s needs. Our comprehensive home addition services include every process step, from initial consultation and design to construction and final touches. Whether you have a clear idea of your dream addition or need guidance to explore your options, our expert team will help you navigate all decisions, ensuring the project aligns with your lifestyle, budget, and aesthetic goals. Our New Jersey homeowner resources can help you begin the journey toward those goals.
Your Custom Home Addition
No two homes are the same, and your addition should reflect both your style and the lifestyle you want to have. As experienced addition contractors, we specialize in custom home additions tailored to complement your existing architecture and meet your specific requirements. From cozy sunrooms and expansive family rooms to private guest suites, we build additions that look and feel like a natural extension of your home.
The Right Contractor for Your Home Addition
Finding reliable contractors for home additions is one of the most critical steps in the renovation process. Below are characteristics to look for.
Our Room Addition Services
Whether you’re adding a single room or expanding your entire home, our room addition services cover everything from concept to construction. Our portfolio shows that we're not afraid to tackle any project. However, there are certain projects that we specialize in.
Primary Suite Expansions
Your home should be your safe space, but sometimes, it still gets too loud and filled with people. Our primary suite expansions give you a large, reimagined primary bedroom and decked-out bathroom with heated floors and custom cabinetry. Imagine relaxing in a space entirely designed around you. From the orientation of the windows to the custom cabinet designs, your room will be entirely about what makes you happy and comfortable.
Sunrooms
A sunroom is the epitome of luxury, offering a sophisticated space bathed in natural light where you can relax, entertain, or showcase lush greenery. A sunroom elevates your home's ambiance while providing year-round comfort, featuring expansive glass panels, elegant finishes, and seamless indoor-outdoor integration. Designed and built to reflect your unique style, it’s the perfect blend of refinement and functionality.
Second-Level Additions
One of the most impactful types of additions is the second-story addition. Adding a second level is an excellent solution if you’re outgrowing your home’s current footprint but love your neighborhood. With our expertise in second-level NJ additions, we’ll help you create a spacious, functional upper floor without sacrificing your outdoor space. Our experience in structural planning allows us to tackle even the trickiest of second-level additions.
Great ROOM Expansions
In this type of addition, we build upward and outward. Often, the idea is to frame gorgeous views with high windows and ceilings, giving you the room to host and live. It's more than just a living room; it's a statement piece.
Luxury Kitchen Expansions
Expand, design, and build a chef-worthy kitchen with more room for cooking, dining, and entertaining. This isn't a simple kitchen; rather, it's the setting for culinary masterpieces and social gatherings. From custom cabinetry to a butler's pantry, the hub of your home will be a cut above.
Garage Additions
With our garage additions, think showrooms for multiple cars or a perfectly luxe living space built over the garage. Our garage additions can be gorgeous, intentional pieces that add to your overall lifestyle. If you're not a car collector, our garage additions can be tailored to your specific hobbies and lifestyle.
ADU Additions
Accessory Dwelling Units give you an entirely new structure to use as a mother-in-law suite, for adult children, or as guest quarters. You can add to your home with a completely new structure. The style and aesthetics can match or complement your home, depending on what you want.
Pool Houses
A modern pool house is not just a place to store towels—it also provides space to cook, host, and relax poolside. Our pool houses add comfort to your outdoor living and are built and designed to be a practical retreat. We can add anything from a bathroom to a kitchen in our luxe pool houses.
Why Choose GTG Builders for Your Home Addition?
Here are just a few of the reasons our satisfied clients recommend us:
1. Expertise in Local Construction
With extensive experience as home addition builders in Central NJ and Upper Bucks County, we understand this region's specific challenges and opportunities. From navigating local regulations to choosing materials suited to the area’s climate, we put our experience to work for you.
2. Comprehensive Project Management
As full-service design-build addition contractors, we manage every aspect of your project, including:
- Initial Design and Planning: We work closely with you to develop a design that meets your goals and budget.
- Permits and Approvals: Our team handles all necessary paperwork and approvals, ensuring compliance with local codes.
- Construction and Finishes: We execute the construction process skillfully and efficiently, delivering a great experience and a finished product customized to your needs.
3. Customized Solutions
We know that your home is as unique as you are. That’s why we approach every project with a focus on customization. Whether you envision a dramatic second-story addition or an ADU for a mother-in-law suite, we’ll work with you to bring your vision to life.
4. Commitment to Quality
At GTG Builders, we believe in building with integrity. Every aspect of our work reflects our commitment to quality, from materials to techniques. We source premium materials and partner with the best tradespeople to ensure that our additions complement the homes and communities they are a part of.
HOME ADDITION FAQS
- How Much Does an Addition Cost in NJ?expand_more
- There are various types of additions, and the cost of one depends entirely on the type of addition. A pool house differs from a second-story addition in everything, including cost. Your builder can work with you and build an estimate showing what your custom home addition will cost based on the project, the project's scope, the design, and the materials used.
- Are Home Additions Worth the Investment?expand_more
-
Only you can truly decide if a home addition is worth the investment. However, our clients have found that investing in their homes allows them to enjoy their space more, giving them the dream home they want without giving up the real estate they love. It's important to choose the addition that you really want and customize it for you and your family.
- Do You Have to Pour a Foundation for an Addition?expand_more
-
Pouring a foundation is typically required for a home addition to ensure stability, safety, and longevity. The type of foundation—slab, crawl space, or full basement—depends on the addition’s size, purpose, and the existing home’s structure. In rare cases, smaller or detached additions like sunrooms may use alternative supports, but for most permanent additions, a properly poured foundation is a non-negotiable step in the building process.
- Is It Cheaper to Move or Build an Addition?expand_more
-
Typically, an addition costs less than a new custom home. If you're making one addition, you're likely spending less on the home you've invested time and money in than on a new home. An addition allows you to customize a home you have loved for years into a space that looks toward the future.
Start Your Home Addition Project Today
Transform your home with the help of experienced home addition contractors who put your needs first. At GTG Builders, we’re passionate about delivering high-quality, custom home additions that enhance your property and enrich your lifestyle.
rEACH OUT
Let us show you why homeowners across Central NJ and Upper Bucks County trust GTG Builders for their residential home additions and more.
Contact us to see what our home addition services can do for you.

What Our Clients Think
"We love Piper Remodelers. They took our vision for our whole-home remodel and brought it to life. Every detail was taken into consideration, and they were able to finish the project on time and within our budget."
Jane Doe
Whole-home Remodel

What Our Clients Think
"We love Piper Remodelers. They took our vision for our whole-home remodel and brought it to life. Every detail was taken into consideration, and they were able to finish the project on time and within our budget."
Jane Doe
Whole-home Remodel

What Our Clients Think
"We love Piper Remodelers. They took our vision for our whole-home remodel and brought it to life. Every detail was taken into consideration, and they were able to finish the project on time and within our budget."
Jane Doe
Whole-home Remodel
WHERE WE WORK
Serving Central New Jersey and Upper Bucks County.
Our Service Area
Hunterdon County
- Flemington
- Raritan
- Raritan Township
- Delaware Township
- East Amwell
- Clinton
- Readington
- Tewksbury
- Califon
Middlesex County
- Plainsboro
Morris County
- Chester
- Chatham
- Mendham
Mercer County
- Hopewell
- Pennington
- Princeton
- Lawrence
Somerset County
- Hillsborough
- Franklin
- Somerset
- Montgomery
- Skillman
- Bedminster
Union County
- Berkley Heights
- New Providence
Bucks County, PA