Top-rated addition to existing structure builders.

Get matched with top addition to existing structure builders in Whippany, NJ

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Addition to existing structure builders in Whippany

Avatar for Joseph & Sons Construction, LLC
Joseph & Sons Construction, LLC
4.9(
163
)

Serving Whippany, NJ and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"Angelo & crew were excellent! Grade A quality of work, extremely polite, and just a pleasure to work with. They completed our addition in a time manor and we could not have been more pleased with the outcome. We HIGHLY recommend Joseph and Sons for any project and we will never use another company to do any work in our home other than Joseph and Sons. Thanks Angelo!!!"
custom luxury home
custom luxury home
remodeled spacious basement
Renovated backyard
renovated walkway and driveway

+1

Response time1 day
Recommended by92%of homeowners
Avatar for BUILT-WELL BUILDERS, LLC
BUILT-WELL BUILDERS, LLC
4.8(
160
)

Serving Whippany, 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
Recommended by97%of homeowners
Avatar for Monk's Home Improvements Inc.
Monk's Home Improvements Inc.
4.7(
600
)

Serving Whippany, NJ and surrounding areas

Approved (Corporate)

In business since 2007

Free estimates

Credit card accepted

Along with the Monk's Kitchen & Bath Design Studio, we are a full-service home improvement provider. Monk's will help you plan, design, and purchase everything you need for a remodel. Then our expert craftsmen will install everything and our painters will come and complete the job.

Recessed Shelving
Reach-In Closets
My jobs
My jobs
My jobs

+19

48 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for CSZ Construction
CSZ Construction
4.6(
69
)

Serving Whippany, NJ and surrounding areas

Approved

In business since 1998

Free estimates

Emergency services offered

"My parents and I live in a old brick apartment building in Hoboken that is from the 1880s. The bathroom in our apartment had not been updated since the 1940s. We needed help ASAP. We checked out Cesar s page and wanted to hire him immediately. The reviews speak for themselves. When he came into our apartment to give us a quote we knew that this was contractor we needed to get the job done. Cesar is affordable, friendly, and very accommodating to any issues or concerns you have before starting the project. Two massive issues with our project were that my dad has spinal & walking issues, so we needed the floors clear of all tools and materials at the end of the each day so that father could walk efficiently through the apartment. The other big issue was that we only have 1 bathroom, so Cesar agreed to work with us on pulling the toilet off and on as every day finished so that we did not have to leave our building to use the toilet. Him and his crew are the best and take pride in their work so that owner is happy with the final result. We brought the bathroom down to the bare bones and rebuilt it back up. I worked with him every step of the way to make sure that he needed all materials to get the job done in the time we needed. This project was an intense remodel with some of the hardest demo and substrate materials that an old bathroom can have. He didn t think anything of it. He has veteran experience in the field and this remodel only took 3 weeks. We are very impressed with Cesar s craftsmanship and professionalism and we will be hiring him again for any future interior projects."
 ALL COLUMNS FINISH
OLD DECK
Livinroom
 PAINTING
PREPARING FOOTINGS

+168

Recommended by93%of homeowners
Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
40
)

Serving Whippany, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"My basement got flooded during IDA, after contacting with couple of contractor I met with Matt, He came on time and explain everything what needs to be done also provide a reasonable price. He started to work immediately with his team. His work was very professional, he did everything as he promised and completed the work on time. He was the most professional, clean and trustful contractor I have met so far. He was always top of the every process and he was paying attention to every small details even I didnâ t see them during the construction. I highly recommend him, I also started recommending him my friends. I will 100% contact him even if I have a small project in the future, Thank you Prestige Design and Build for Beyond Expectation."
Demarest multiple room remodel
completion of renovation
Addition project progress
Rear addition project
Master bedroom suite

+497

Response time6 hrs
Recommended by66%of homeowners
Avatar for JM Contracting Group, LLC
JM Contracting Group, LLC
4.7(
84
)

Serving Whippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Customers say: Quality work

"My family had the pleasure of contracting John and his crew to remodel our kitchen. We live in a nearly century-old house that was not properly cared for by the previous owner, and our original kitchen showed it. John helped us plan out a full remodel with new cabinetry, countertops, appliances, flooring, and ceiling (the latter two were originally slanted and uneven). He was communicative and thorough during the planning phase and his crew was always on time, professional, and thorough during the actual construction work. John was on site each day to supervise and keep us in the loop on how things were progressing. They caught multiple major structural/functional issues along the way that they were able to fix without it even impacting their timeline for the project. Thanks to John, my family now has a beautiful, functional kitchen. We will definitely be reaching out to him when we start additional projects in our house!"
West Windsor NJ
First Floor MakeOver
Springfield Makeover
Master Bedroom
Living Rm

+55

Response time5 hrs
Recommended by85%of homeowners
Avatar for The TJB Legacy Group, LLC
The TJB Legacy Group, LLC
4.9(
39
)

Serving Whippany, NJ and surrounding areas

Approved

In business since 2005

Free estimates

Credit card accepted

"Carmello and team were delightful to work with. We had a porch deck that was rotting and we wanted it repaired but additionally wanted the porch screened in. The team started right away after hiring. We knew there may be surprises along the way, considering there was rot. Carmello was communicative and flexible to help ensure that our new porch would be safe and solid. Each day, the worksite was left swept and tidy. We will absolutely be working with them again on future projects."
Before
After
After
Kitchen Before
After Kitchen

+24

Response time1 day
Response rate97%
2 neighbors recently requested a quote
Avatar for EMILCO Construction, LLC
EMILCO Construction, LLC
4.9(
16
)

Serving Whippany, NJ and surrounding areas

Approved

In business since 2003

Free estimates

Emergency services offered

"Emile is very professional and honest the work preformed was beautifully done. The bathroom was a real mess and it has been transformed to a beautiful modern bathroom couldn’t have asked for more. His team worked hard to get the job done in a short time. I would definitely hire them again for any future projects."
Remodeling - Kitchen & Bathroom Project
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+21

Response time2 days
3 neighbors recently requested a quote
Recommended by100%of homeowners
All-Star Contractors of Hunterdon County, LLC
4.7(
35
)

Serving Whippany, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1970

Free estimates

Emergency services offered

"We are extremely pleased with the great job Bill and his crew did in adding on to our existing dining room and pub room addition. We were kept informed Every step of the way and Bill had every worker there on time and it flowed beautifully. That’s an art! Everyone worked well together and they were very neat. We have finished the work and we couldn’t be happier with the way it turned out. We have received so many compliments on our rooms. I highly recommend All Star of HC."
Response time3 days
Response rate100%
2 neighbors recently requested a quote
...
Showing 1-10 of 668
FAQs for addition to existing structure building service projects in Whippany, 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 Whippany, 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.