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

Avatar for NB Woodworks, LLC
NB Woodworks, LLC
5.0(
26
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 1875

Free estimates

Warranties offered

"Prayer answered! Our church was ghosted by our original contractor prior to his building a disability ramp for our rental building that he had contracted with us. Thankfully, Angi’s List connected us with NB Woodworks, LLC. Anthony responded quickly to our need. Listening to concerns of both landlord and tenant, he provided helpful logistical suggestions. He managed efficiently all aspects of the project, deciphering difficult to read architectural drawings and working with the city on our behalf to expedite permits and inspections. He kept regular communication with us regarding the project’s progress, issues, and city requirements. Anthony braved freezing weather to finish the ramp for us in a timely fashion, and we are most grateful to him, Thanks to NB Woodworks, our rental now has ADA safe access and our tenant has full use of the building space. If you seek a reliable, expert and efficient experience, definitely consider NB Woodworks for your next project,"
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Our Work

+34

Response time1 day
4 neighbors recently requested a quote
Recommended by57%of homeowners
Avatar for AVSTEP LLC
AVSTEP LLC
5.0(
13
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2019

Free estimates

Warranties offered

"AVSTEP was great to work with, the team started earlier than expected and completely fixed my foundation, not only with replacement block and cement, but added two different types of waterproofing as well. When additional wood rot was found on top of the foundation, they were able to repair that as well without adding more time to the project. The heavy brick and mortar waste from the building was promptly removed like it was never there. Would recommend AVSTEP for future building needs."
Roofing Project
Remodeling - General Project
before
Before
Remodeling - Kitchen & Bathroom Project

+27

Response time1 day
Response rate100%
2 neighbors recently requested a quote
Avatar for Bryan's Handyman & Home Improvement Service
Bryan's Handyman & Home Improvement Service
4.7(
537
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Warranties offered

"We are very pleased with the new deck build by Bryan and his team. They first tore down the old deck to the frame, which was still in good shape. They then rebuilt the deck. They replaced the floorboards, the side railings and boards, and the steps. It looks great and is very solid. See attached pics."
Bathtub and wall
Kitchen Remodel
Remodeled bathroom
Staircase remodel
Basement Door

+377

Response time5 days
Response rate100%
5 neighbors recently requested a quote
Avatar for A Hubert Construction
A Hubert Construction
4.5(
104
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

In business since 1987

Free estimates

Emergency services offered

"Arthur built out an addition and a deck for us. The one thing I remember most clearly is that each time the town came out to inspect, the inspector would comment that the work was some of the best they had seen, and any modifications from the architectural plans was an improvement on them."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+37

Response time3 days
Response rate100%
1 neighbors recently requested a quote
Avatar for Nicopal Construction
Nicopal Construction
4.8(
72
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2005

Free estimates

Emergency services offered

"I hired Nicopal Construction to demo and gut my finished basement. It was a horrible dirty job, so I had a very hard time finding a company that would take the job without re-finishing the basement when complete. Vincent, the very friendly owner, came by and provided an estimate. He understood that I wanted to move quickly, so he scheduled the job the following week. I really appreciated his urgency in moving on the project. First day John and Vincent came out to begin work. Don’t let John’s youthful appearance fool you. This young man is a total workhorse! He has the work ethic of a Depression era coal miner. He enjoys hard work, and, just as important, does excellent work. With any project we hit some snags, but Vincent and John were always keeping me updated. In the end; the job was completed and I am extremely satisfied with the end result. Again, special thank you to John. He really did a great job. As with any project, there is a level of stress. I have to say, Vincent was awesome to work with during the whole process. Here’s an example, after work was complete and final payment was made, there was some additional work that was missed (this was my fault and not Nicopal’s). Vincent stayed in communication with me and came back out to complete the work! I have never experienced that level of service from a contractor. Usually once they get their final payment you never see them again. This is not the case with Nicopal Construction. Thank you, Vince! You truly are a man of your word. I would highly recommend Nicopal Construction for any project. We have a few more projects in mind in the future and will be reaching out again. Thank you again guys! I appreciate the hard work."
Roofing Siding Masonry
Roofing Siding Masonry
Roofing Siding Masonry
Roofing Siding Masonry
Roofing Siding Masonry

+236

Response time11 hrs
12 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for BMR BelMax Remodeling
BMR BelMax Remodeling
4.8(
67
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"BelMax did several projects for me including two major projects; (1) remodeling a basement bathroom with the addition of a shower and adding a second-floor addition to the house which became a walk-in closet. BelMax worked with an architect to get a solid design, pulled the permits, completed the work, and got the work approved. I am very pleased with the quality of their work. Throughout the job, the crew wore masks and shoe coverings when they worked inside, which I appreciated. They were also very clear about what was budgeted for each minor project so that later when we changed some of the requirements, we were able to work together to figure out the change in cost. Please note that some of the changes in scope were required. For example, after prior to the work stating, the architect said that we had to add another bedroom window to the house to meet city code. I recommend them and would consider them for work at my house in the future."
Shower
Bathroom
Bathroom 2
Bathroom 3
Shower base

+48

Response time6 hrs
1 neighbors recently requested a quote
Recommended by74%of homeowners
All-Star Contractors of Hunterdon County, LLC
4.7(
37
)
Addition to Existing Structure - Build

Serving Millstone-township, 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
Avatar for A.W. Martin, Inc
A.W. Martin, Inc
4.0(
72
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

In business since 1991

Free estimates

Emergency services offered

"Our project was completed with Complete professionalism by Tony and his project manager, Christian. Work was completed to a very high standard and the job progressed according to the expected timeline. I had no prior experience with AW Martin, but will certainly use them again for upcoming home renovations. Highly recommended."
Seahorse Shower
Tile artwork
Shower pan
Jacuzzi tub
Natural stone wall

+39

Response time4 days
Response rate100%
7 neighbors recently requested a quote
Avatar for WA Construct
WA Construct
4.6(
33
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Hasnain and his team at Wa did a 2nd level addition and remodel of our ranch. We were on a tight schedule and they did everything they could to get us home on time. During covid, with many supply issues, this was no easy task but they pulled it off."
State of the Art Kitchen
Riverside Medical centre
Fort Lee
Gut Remodeling
Modern Home Remodel

+411

Response time11 hrs
3 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for The Finish Guys
The Finish Guys
4.8(
20
)
Addition to Existing Structure - Build

Serving Millstone-township, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Warranties offered

"Matt built a sunroom addition for us. We met many contractors before finalizing with Matt and we surely feel good about our decision. Matt's best quality is his flexibility. He wants his customer to be satisfied and happy with the project. He is very energetic and shows care and respect to customer's requests. He is very detailed on his quote. Though all may not finish per the details (in the quote), it is built well and per the code. Matt is personable and will spend time with you explaining and answering questions. His crew is professional, he may though hire helpers for smaller tasks of the project. His framing team is excellent. In terms of timeline, these projects always take longer than planned. Most of the delays are due to scheduling township inspections (and re-inspections). Expect some delays due to Matt's team availability due other projects they are trying to finish. I am very pleased working with Matt for our sunroom project. I highly recommend him."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+20

2 neighbors recently requested a quote
Recommended by45%of homeowners
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FAQs for addition to existing structure building service projects in Millstone-township, 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 Millstone-township, 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.