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Top-Rated Addition to existing structure builders in Caldwell - Updated Nov 2026

Avatar for BUILT-WELL BUILDERS, LLC
BUILT-WELL BUILDERS, LLC
4.8(
167
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1980

Free estimates

Warranties offered

"Hired Built-Well to renovate our downstairs powder room, install mouldings in our dining room, and add onto our existing deck. They were extremely professional and worked with us with some of the changes to our plans that we threw their way. Everything is beautiful and they were a pleasure to work with."
Response time2 days
1 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for Prime Source Development LLC/Trustworthy Handyman
Prime Source Development LLC/Trustworthy Handyman
5.0(
32
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Having had work done in my home from small tasks to significant renovations I have encountered several contractors who perform marginal or substandard work so I decided to source a reputable contractor from Angi. After reading the comments and reviews, I arranged a personal meeting with Mike Melia for my bathroom renovation. Mike responded quickly to evaluate and explore and explain the best options while taking into consideration my handicaps. Throughout the project there was much infrastructure from prior work performed and existing conditions. Mike addressed all structural problems, plumbing and electrical repairs including a new sub panel. Mike has remarkable attention to detail for every aspect of work and he completed the work with a high standard of professionalism with his employees and subcontractors. Mike was on site everyday in constant communication with myself and my insurance company. He was unexpectedly neat and clean throughout the process. This very challenging project could not have gone smoother. He is personally knowledgeable and takes pride in his work. I would highly recommend Mike and his team. I am now using Mike and his team to build a full deck and to make structural repairs to my garage. I hope my experience inspires others to contact Mike Melia when it comes to finding value versus price. Not the lowest bidder, but worth every penny to have all aspects of service completed to a high professional level. Mike also went above and beyond not charging for several tasks! Mike did the most professional and comprehensive work ever done in my home! Richard Dunn Nutley New Jersey"
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+1

Response time8 hrs
Recommended by100%of homeowners
Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
40
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Working with Matt from Prestige Design & Build was an absolute pleasure from start to finish. His professionalism, attention to detail, and passion for delivering quality work were evident in every interaction. Matt and his team transformed our vision into reality, exceeding our expectations at every turn. The project was completed on time, within budget, and the craftsmanship was second to none. Matt's communication throughout the process was outstanding, keeping us informed and at ease. I highly recommend Prestige Design & Build for anyone looking for exceptional service and unparalleled results."
Demarest multiple room remodel
completion of renovation
Addition project progress
Rear addition project
Master bedroom suite

+542

Response time6 hrs
1 neighbors recently requested a quote
Recommended by66%of homeowners
Avatar for H4 Construction, LLC
H4 Construction, LLC
4.6(
10
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"I built a family room/sun room addition. They did a wonderful job, showed up on time, very polite and were helpful with ideas and design. I would highly recommend this company. You would not be sorry.ð"
New build
Renovation of 2 bedroom c
large addition
Addition
Large addition

+32

Response time1 day
Response rate97%
5 neighbors recently requested a quote
Avatar for The TJB Legacy Group, LLC
The TJB Legacy Group, LLC
4.9(
39
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Carmelo and his team SET THE BAR for responsiveness and dedication to customer satisfaction. Legacy remodeled the front of our house, including a new front door, building a portico, fixing structural damage, siding, and window framing. Transparent every step of the way. Carmelo was flexible with decisions involving sourcing materials and was informative about our options as we made decisions throughout the project. We will be repeat customers in the future; I would trust Carmelo and his team with any project!"
Before
After
After
Kitchen Before
After Kitchen

+24

Response time1 day
Response rate97%
4 neighbors recently requested a quote
Avatar for Wise Choice Construction LLC
Wise Choice Construction LLC
4.8(
46
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

"I can?t recommend this team enough! They completely transformed my kitchen, and the entire experience exceeded my expectations from start to finish. Our kitchen remodel was about $30,000, and they completed everything in just 3 weeks without sacrificing quality. They were punctual, professional, and kept me informed throughout the entire process. The workmanship is outstanding, the cabinets, countertops, backsplash, lighting, flooring, and every finishing detail came together beautifully. What impressed me the most was their attention to detail and commitment to getting everything right. They kept the work area clean, stayed on schedule, and were always available to answer questions or make adjustments when needed. It?s rare to find a contractor who delivers exactly what they promise, but they did just that."
Deck remodel
Deck remodel
Deck remodel
Deck remodel
Deck remodel

+2

8 neighbors recently requested a quote
Recommended by56%of homeowners
Avatar for Gomez Vision Construction, LLC
Gomez Vision Construction, LLC
4.4(
81
)
Addition to Existing Structure - Build

Serving Caldwell, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Gomez Vision was a great company to work with for our home addition/renovation. The owner was easy to work with, showed up on time, and made the process much smoother - The quality of their work is very good too. He runs a small team and they work very efficiently."
COMPLETE HOME REMODELING
job#387 house renovation
job#391
master bath
hard wood refinishing

+326

Response time3 hrs
10 neighbors recently requested a quote
Recommended by84%of homeowners
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FAQs for addition to existing structure building service projects in Caldwell, NJ

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Caldwell, 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.