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TRUSTED BY MOUNTAINSIDE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon67
    Verified home building services reviews

Top-Rated Home builders in Mountainside - Updated Nov 2026

Avatar for Prestige Design & Build Corp.
Prestige Design & Build Corp.
5.0(
40
)
Find a Custom Home Builder

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Matt and the entire team of professionals at Prestige Design & Build were prompt, courteous, meticulous and hard working. My family and I are 100% pleased with the beautiful job they completed in our home and I definitely look forward to planning additional renovations with them in the near future. Much appreciation to Matt for his personable communication."
Demarest multiple room remodel
completion of renovation
Addition project progress
Rear addition project
Master bedroom suite

+542

Response time6 hrs
Recommended by66%of homeowners
Ernest & Sons General Contractors
4.1(
23
)
Shelter or Outbuilding - Build

Serving Mountainside, 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!"
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7 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Raza & Sons Construction, Inc.
Raza & Sons Construction, Inc.
5.0(
2
)
Find a Custom Home BuilderFind a Modular Home Builder

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2014

Free estimates

Emergency services offered

Platinum Construction is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and responsibility in all of our jobs. We are a locally owned and operated business with more than 6 years of experience serving Brooklyn, NY and surrounding areas. There is no job too big, or too small for our team. Call today and let us put our experience to work for you!

Response time1 day
Recommended by100%of homeowners
Avatar for Jack Cwyl & Son Builders
Jack Cwyl & Son Builders
4.8(
30
)
Find a Custom Home BuilderFind a Modular Home BuilderShelter or Outbuilding - Build

Serving Mountainside, NJ and surrounding areas

In business since 1989

Free estimates

"If you're looking for a budget job, keep looking. Jack isn't cheap, but he gives you the highest quality service and work. Started on time, worked continuously, finished on time. Spent a lot of time with us discussing the options and planning the work. "Old School" perfectionism. Minimized household disruptions and cleaned up well at the end of each day. Came immediately when we had a minor problem after the job was completed and paid for. The finished product looks fabulous. And if you're a dog lover, you might even get to meet Jack's french bulldog Coco."
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+11

Recommended by100%of homeowners
Avatar for Elegant Home Improvement
Elegant Home Improvement
4.6(
102
)
Find a Custom Home BuilderFind a Modular Home Builder

Serving Mountainside, NJ and surrounding areas

In business since 1999

Free estimates

Emergency services offered

"John did outstanding job finishing basement in our house. He provided contract at the beginning of the project with the job descriptions and prizing. The prizing was reasonable. He strictly honors the contract. He worked personally with Livingston city authorities for job permit. John spent a lot of time with the city inspectors and completed all their recommendations. Work was done in very professional manner without any deficiencies. We are very happy! Definitely, recommend this company services to our relatives and friends"
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+30

Recommended by98%of homeowners
Avatar for Cary's Home Improvement
Cary's Home Improvement
4.4(
35
)
Shelter or Outbuilding - Build

Serving Mountainside, NJ and surrounding areas

In business since 1985

Emergency services offered

"My wife and I DO NOT use anyone who is not on Angie's List so we understand the importance of having accurate, fair reviews. We found Cary on Angie's List with overall great feedback on jobs he had done so we called him in for an estimate. Despite being very busy, he made the time to come over on a Saturday morning. He had previously dropped by and assessed the damage from the outside but needed to see it from the inside to ensure he could judge it accurately. After 15 minutes, our fears were realized and he said he would need to remove the cedar impression siding and remove the roof and replace it with a different system because the pitch wasn't steep enough. 
Within 48 hours, he provided a quote for his crew to come out and get the work done in a single day which was completely reasonable. He completed the work (guaranteed) as promised and left the site immaculate. He took pictures of the issue, of job progress and of the completed job. He mentioned he went around and filled some other issues he noticed while he was waiting for his crew to wrap up, no charge at all. He then discounted the quoted, agreed price 5% for angie's list deal I wasn't even aware of. Have you ever heard of a contractor accept less than an agreed price? Me neither.
Angie's List is a great resource for people to share experiences. I think the contractors who are honest and reasonable should be applauded too. We have been on the receiving end of some really lousy service so this was a new experience having someone do what they promised to do. Cary and his crew are the best in Monmouth County. We already have him pricing out finishing a storage space and will use him to build our deck in the spring. I cannot recommend Cary enough and you can reach me through Cary if you'd like to see his work firsthand. 
Kevin
"
Before
After
After
Before
After

+9

Recommended by100%of homeowners
Avatar for B & A Construction Group
B & A Construction Group
4.6(
26
)
Find a Custom Home BuilderFind a Modular Home Builder

Serving Mountainside, NJ and surrounding areas

In business since 2000

Free estimates

Emergency services offered

"We first invited B&A Construction team to provide an estimate for our new house renovations. Afterward, we showed the home inspection report for the house that we’re trying to sell and Luis was kind enough to stop by on the same day to our house to assess the issues and thoroughly explain what needs to be done. Given his expertise, it was very helpful for us to work with him as the inspection required various types of work, ranging from plumbing, HVAC to electrical. His work was very thorough and timely. Also, he’s very responsive when we text him and pleasant to work with. His price was also reasonable and better than few quotes we’ve gotten from other individual licensed contractors as he offered package deal for various work he has done. We are currently working with him on the new house renovation and he and his team have been very efficient. I can’t wait to see the end results. I highly recommend Luis and his company!"
Kitchen and Bath Remodeling Project
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+43

Recommended by91%of homeowners
Avatar for Nilsen Building & Remodeling LLC
Nilsen Building & Remodeling LLC
4.3(
54
)
Find a Custom Home BuilderFind a Modular Home BuilderShelter or Outbuilding - Build

Serving Mountainside, NJ and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"I found Nilsen Building and Remodeling from Angie's List and at the time, they had a 'Painter for a Day' promotion going on that I couldn't refuse - I thought, it's so affordable what could possibly go wrong? I reached out to David to coordinate right away so to take advantage of my voucher, and he was in touch shortly after and we were able to lock in a start date two weeks later. I was concerned about scheduling without having him stop by and seeing the space first, but he assured me there wouldn't be any concerns and that the job could be done within the 8 hours. To sum up my experience in one sentence - I am so happy with my finished, painted room and I will certainly be using David and his team for more projects around my house and would highly recommend him to anyone looking in the North Jersey area. The job included painting a lot of trim work and 2 accent walls. Once you get past the bright purple color I chose, you can see their high-quality work and attention-to-detail all throughout. Thank you!"
Logo
Entry tile
Bathroom floor
Shower
Drywall install and spackle

+173

Recommended by87%of homeowners
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Home Building FAQs, answered by experts

Green homes are often more expensive to build, averaging around $200 per square foot compared to the $150 per square foot you’d spend to build a standard home. However, green homes can save you money on your utility bills by consuming less energy or creating energy using solar panels or wind turbines on-site. They’re more expensive to build, but they often end up costing less in the long run.

While it’s never too early to start planning for a major home improvement project like a home addition, give yourself at least a month or two to plan and design your addition, find a contractor, and get the permits in order. For larger projects like a second-story addition that require designing with an architect, plan on three to four months of preparation.

The average cost to build a modular home is around $270,000, and most modular homes total between $180,000 and $360,000. Of course, this price varies significantly by location, and the price tends to follow the cost of living in the area. There are quite a few other factors at play that can affect your pricing, including the following:

  • Number of bedrooms and bathrooms

  • Site preparation, including land clearing and leveling

  • Type of foundation

  • Utility connections

  • Cost of building permits

In most states, you can build an in-law suite on your property as long as you follow local building codes. However, it's important that you have enough space on your property to accommodate the new structure. A functional in-law suite in your backyard will require between 300 and 800 square feet of space.

Building a new home can be more expensive than buying an existing one, depending on the housing market in your area. Many homeowners still find that building a new house is worth the investment as they can choose the exact layout they want, as well as to choose their own floors, wall coverings, appliances, and finishes. If you live close enough to the build site, you can also stop by to check on the builder’s progress, which can provide some peace of mind that the project is worth it.

The Mountainside, NJ homeowners’ guide to home building services

From average costs to expert advice, get all the answers you need to get your job done.