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Find Addition to existing structure builders in Randolph

Avatar for Joseph & Sons Construction, LLC
Joseph & Sons Construction, LLC
4.9(
168
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"They were very easy to work with. They ended doing some additional work for us at my house. They are one of the only companies that my wife and I both agreed that we would like to come back to do any additional work."
custom luxury home
custom luxury home
remodeled spacious basement
Renovated backyard
renovated walkway and driveway

+1

Response time1 day
1 neighbors recently requested a quote
Recommended by89%of homeowners
Avatar for Built To Last Home Improvements, LLC
Built To Last Home Improvements, LLC
4.8(
25
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

"Aaron was great to work with, and him and his team did great quality work at very reasonable prices. Built to Last is able to help tackle just about any home project, so we look forward to working together to make our new house our home!"
Outdoor Shower Right Angle
Outdoor Shower Left
Design  Render
Outdoor Shower
Cabin Flooring

+4

Response time10 hrs
Response rate89%
1 neighbors recently requested a quote
Avatar for H4 Construction, LLC
H4 Construction, LLC
4.6(
10
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"We hired Alan to handle the renovation and expansion of our house, which included adding a second floor and building an addition. After meeting with various contractors, Alan stood out to us. He was not only highly professional but also made us feel a personal connection. Alan was very transparent with his quote and conscientious about the costs of "change orders" throughout the renovation. He dedicated his time to managing the entire renovation, from demolition to completion. True to his promise, we were able to move back into our home within seven months. We love our new house! Alan turned our dream house into a reality for our family!"
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 Randolph, 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 JM Contracting Group, LLC
JM Contracting Group, LLC
4.7(
85
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: Quality work

"John was a true professional. He came in with a reasonable quote and we believe he under promised and over delivered. Would def recommend to friends / family and if /when we decide to do additional work on home, weâ ll definitely use again"
West Windsor NJ
First Floor MakeOver
Springfield Makeover
Master Bedroom
Living Rm

+55

Response time5 hrs
3 neighbors recently requested a quote
Recommended by84%of homeowners
Ernest & Sons General Contractors
4.1(
23
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

In business since 1997

Customers say: Quality work

"We hired Ernest and Sons to construct our patio tiles. We purchased 2' X 2' Tiles and I have to say they did a gorgeous job. I was so pleased with the way they showed up when they said they would. The men that laid out on my job worked so hard. The labor was very strenuous but they never took a break. They were the most conscientious and polite workers I've ever dealt with. They worked neatly, cleaned up totally afterward, and just had a great deal of respect for our property. They really did a beautiful job and Ernest, the owner is a real gentleman also. Love this company!"
Additional Photos
Additional Photos
Additional Photos
7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for GC360 CONSTRUCTION LLC
GC360 CONSTRUCTION LLC
5.0(
9
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I had an urgent request to install shelves b/c the other person I hired never showed up. Belayeth reached out to me right away and came out the same evening. They did a wonderful job installing multiple shelves in my guest room, were clean and efficient, very friendly and experienced. I was so excited to see that they provide so many services. Highly recommend and will definitely use them going forward. They were wonderful."
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling
Bathroom remodeling

+41

4 neighbors recently requested a quote
Avatar for Sovereign Homes, LLC
Sovereign Homes, LLC
4.7(
13
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

In business since 2009

Free estimates

Warranties offered

"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!"
Front View
Entrance
Kitchen
Hallway
Master Bedroom

+8

Response time2 days
Response rate93%
3 neighbors recently requested a quote
Avatar for You Break We Fix
You Break We Fix
4.3(
55
)
Addition to Existing Structure - Build

Serving Randolph, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Perfect. No other words needed. On time. Polite. Professional. Worked like dogs all day. Knew exactly what they were getting themselves and how to get it done. I will definitely hire them again for my next project."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+48

2 neighbors recently requested a quote
Recommended by64%of homeowners
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FAQs for addition to existing structure building service projects in Randolph, 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 Randolph, 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.