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Home Additions in New Jersey

Precision General Construction designs and builds home additions across Northern New Jersey, including room additions, add-a-levels, and bump-outs. We expand your home to match your growing needs while maintaining the character and style of the original structure.

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Since 1980
BBB A+ Rated
Haag Certified Inspectors
Family Owned & Operated
NJ Licensed & Insured

Home Addition Services in New Jersey

Room Additions

A room addition gives your family the extra space you need without the cost and disruption of moving to a new home. Precision General Construction builds room additions that blend seamlessly with your existing house, matching the roofline, siding, trim, and architectural details so the new space looks like it was always part of the original design. Common room addition projects include new family rooms, master bedroom suites, home offices, and in-law suites. Each project starts with a thorough evaluation of your home's structure, foundation, and lot to determine the best approach. We work with architects and engineers when needed to ensure the design is structurally sound and code-compliant. Our team handles every phase of construction, from foundation and framing to plumbing, electrical, HVAC, insulation, drywall, flooring, and finish work. You get one contractor managing the entire project, which means a single schedule, clear communication, and consistent quality throughout.
Room addition framing construction - Home addition in New Jersey by Precision General Construction, Inc.

Add-a-Level

An add-a-level (also called a second-story addition) dramatically increases your home's living space by building an entirely new floor on top of the existing structure. This is an ideal solution for homeowners who love their neighborhood but need significantly more room. Precision General Construction has extensive experience with add-a-level projects across Northern New Jersey. Add-a-level projects require careful structural engineering to ensure the existing foundation and walls can support the new floor. We work with licensed structural engineers to evaluate your home and design the necessary reinforcements. The result is a safe, solid addition that meets all New Jersey building codes. An add-a-level typically adds three or four bedrooms, one or two bathrooms, and additional closet and storage space. The new floor is designed to complement the existing home's style, and we update the exterior cladding as needed to create a unified appearance.
Add a level second floor framing - Home addition in New Jersey by Precision General Construction, Inc.

Bump-Outs & Extensions

Not every addition needs to be a large-scale project. A bump-out extends an existing room by a few feet, adding valuable square footage without the cost and complexity of a full room addition. Precision General Construction builds bump-outs for kitchens, bathrooms, bedrooms, and living areas. A kitchen bump-out of just three to four feet, for example, can create enough room for an island or an expanded dining area. A bathroom bump-out can accommodate a larger shower or a freestanding tub. These projects are typically completed faster and at a lower cost than full additions, making them an efficient way to gain the space you need. We match the foundation, framing, roofing, and exterior finishes to your existing home so the bump-out looks like a natural extension of the original structure.
Bumpouts extensions addition framing - Home addition in New Jersey by Precision General Construction, Inc.

Planning & Permitting

Home additions in New Jersey require building permits, zoning approvals, and in some cases, variance applications. Precision General Construction handles the entire permitting process on your behalf. We prepare the plans, submit the applications, and coordinate inspections throughout construction. Zoning regulations in New Jersey municipalities dictate setback requirements, lot coverage limits, height restrictions, and other factors that affect what you can build on your property. We are familiar with the building codes and zoning ordinances in communities throughout Union County, Middlesex County, and the surrounding areas. We evaluate your lot and your goals early in the process to identify any potential issues. We also help you plan the budget realistically. Home additions are significant investments, and understanding the full cost before you commit is essential. Our estimates cover everything from foundation work to the final paint touch-up so there are no surprises.
Planning permitting blueprints compass plans - Home addition in New Jersey by Precision General Construction, Inc.

What to Expect

1

Feasibility Assessment

We evaluate your lot, your home's structure, and local zoning requirements to determine what type of addition is feasible.

2

Design & Engineering

We develop architectural plans and structural engineering drawings that meet code requirements and match your vision.

3

Permitting

We submit plans to your municipality, obtain all required permits, and handle any zoning approvals or variance applications.

4

Foundation & Framing

We pour the foundation, frame the addition, and tie the new structure into your existing home's framing and roofline.

5

Systems & Finishes

Plumbing, electrical, HVAC, insulation, drywall, flooring, and finishes are installed to complete the new space.

6

Final Walkthrough & Inspection

We complete a final inspection with your municipality and walk you through the finished addition to confirm everything meets your expectations.

Why Choose Precision for Home Additions

Precision General Construction has been building home additions across Northern New Jersey since 1980. We have the structural expertise, the trade coordination, and the project management experience to deliver additions that look and function as part of your original home.

As a full-service general contractor, we handle every aspect of the addition, from foundation to finish. You do not need to hire separate companies for framing, plumbing, electrical, and drywall. Our BBB A+ rating and 46 years in business reflect our commitment to quality and customer satisfaction.

We have built additions in Clark, Westfield, Scotch Plains, Cranford, Edison, Summit, and communities throughout the region. We know the local building codes, zoning requirements, and architectural styles, and we use that knowledge to deliver results that add lasting value to your home.

Why Clients Trust Us

  • 46 Years in Business
  • BBB A+ Rated
  • Haag Certified Inspectors
  • NJ Licensed & Insured
  • Family Owned & Operated
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What Our Clients Say

We recently put on an addition and Bob and his team were amazing! They are hardworking, dependable and do great work. I have been so happy with the addition, I've already recommended them to two other friends!

Jody Menna Home Addition

We are extremely happy with Precision General Construction and highly recommend them. They sided our house and it looks so beautiful now. Mr. Siessel and his crew were polite, professional, hardworking and their work was excellent. When the job was finished, they did a great job cleaning up. They did an exceptional job overall, and we highly recommend them. Many thanks from S & M Morelli.

Mary M. New Siding

I had the pleasure of having Precision General Construction install new hardwood floors in my house. They did a seamless job of removing my old flooring, installing my new floors and leaving my house in outstanding shape everyday they were there! I would absolutely recommend them for any job you need done on your house!

Scott Diaz New Hardwood Floors

The best price, very professional, very friendly, and great work. They replaced my slate roof with shingles. I highly recommended this company for any construction work.

Robert Roofing

Just want to say thank you for the outstanding job completed at my home! I had the gutters, leaders and gutter protection installed as well as some siding repairs. Outstanding products and professional staff! The gutter protection is great and I have no worries about leaves and debris. I would recommend your company and services to everyone. Thank you again!

Lou Caporaso Home Remodel

Quick, professional and friendly service. They installed an awning for us and working with them was wonderful every step of the way. I highly recommend them.

Ashley Cicchino New Awning

Quick, professional and friendly service. They installed an awning for us and working with them was wonderful every step of the way. I highly recommend them.

Ashley C. Retractable Awning Installation
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Frequently Asked Questions

Service Area

Where We Build Home Additions

Precision General Construction builds home additions throughout Northern New Jersey, including Clark, Westfield, Cranford, Scotch Plains, Edison, Woodbridge, Rahway, Elizabeth, Summit, Plainfield, and surrounding communities in Union County and Middlesex County.
Our office, Clark, NJ
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Adding on to your home?

We document the addition in writing, from foundation and framing to finishes and timeline, so the plan is set before we break ground.

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