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TRUSTED BY MOUNTAINSIDE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon209
    Verified deck repair services reviews

Top-Rated Deck repair pros in Mountainside - Updated Nov 2026

A&M General Contracting, LLC
4.7(
60
)
Deck or Porch - Repair

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Credit card accepted

"Andrew and the crew were easy to work with, professional and completed the project in the time they said they would to install the deck. If I had any questions, they promptly answered them and provided suggestions when asked. I would hire them again."
Before Calbrite
Calbrite clean
Before Calbrite
After Calbrite
Response time12 hrs
21 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Dominion Construction
Dominion Construction
5.0(
40
)
Deck or Porch - Repair

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2013

Free estimates

Emergency services offered

"Tim was prompt, professional & listened to my questions and answered my questions patiently. His knowledge of materials and costs helped me get this project done well & in my spending plan too. My decks are now in great shape, look better than they have for some time, since Dominion’s very skilled crew replaced worn decking and stained the deck and railings. Our family can really enjoy this special part of our home for years to come now!"
Home Siding Is Complete
Home Siding Is Complete
Home Siding Is Complete
Home Siding Is Complete
Home Siding Is Complete

+132

1 neighbors recently requested a quote
Avatar for Pro Master Construction NJ, LLC
Pro Master Construction NJ, LLC
5.0(
130
)
Deck or Porch - Repair

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2010

Free estimates

Emergency services offered

"I hired Pro Master Construction to repair my skylight, and they did an excellent job. The team was professional, efficient, and very thorough. They fixed the leak quickly and ensured everything was sealed properly. I am very satisfied with their work and highly recommend Pro Master Construction for skylight repairs!"
Before
Before
Before
Before
After

+71

Response time6 hrs
Response rate98%
122 neighbors recently requested a quote
Avatar for Pro Line Construction, LLC
Pro Line Construction, LLC
4.7(
479
)
Deck or Porch - Repair

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2007

Free estimates

Emergency services offered

"Very satisfied with Pro Line construction from start to finish.Tony came to measure and do a full and detailed presentation on what the new roof would entail. They are platinum installers for Owens Corning - which means they receive extra training for the latest materials in the business. Unfortunately , because of the fickleness of weather they couldn?t come as quickly as hoped. However , once they came they were amazing. I had 7 men ripping off my two layer roof and garage roof - and they looked like Santa?s helpers. The dumpster filled and materials were stacked all over the lawn and they never stopped working. The project manager stopped by several times a day and got on the roof to monitor progress. By the end of the second day the job was done. They didn?t leave until 7 pm and after blowing clean my deck and lawn. It was spotless. Awesome job well done"
Skylight repair
Skylight repair
Rebuild new chimney foundation up
ROOFING
new roof

+313

Response time6 hrs
Response rate85%
1 neighbors recently requested a quote
Avatar for Supreme Pro Construction
Supreme Pro Construction
5.0(
110
)
Deck or Porch - RepairDeck or Porch - Repair - For Business

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"We had a lot of damages on our deck and we hire Supreme construction to help us fix and renovate our deck. They have a very professional crew and very polite. Would recommend to everyone"
Deck Project
Deck
Deck
Deck
Deck Remodeling

+47

Response time9 hrs
6 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for New-Gen Construction NJ LLC
New-Gen Construction NJ LLC
4.7(
27
)
Deck or Porch - RepairDeck or Porch - Repair - For Business

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2012

Free estimates

Emergency services offered

"In addition to replacing siding, decks, brickwork, and chimneys, they assisted with our roofing repair. It was a terrific one-stop shop for us for practically all of our house maintenance needs!"
New Steps + Railings.
New Steps + Railings.
Skylight + Roof Repair.
Skylight + Roof Repair.
Skylight + Roof Repair.

+53

Response time5 hrs
Response rate100%
104 neighbors recently requested a quote
Avatar for Trinium Home Improvement LLC
Trinium Home Improvement LLC
5.0(
16
)
Deck or Porch - Repair

Serving Mountainside, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"I hired Trinium Home Improvement for a deck repair. Mike was highly professional during the whole process, keeping us informed with all the details. The job was done within 3 days, they cleaned after themselves and our deck looks as good as new. I would highly recommend them and would definitely hire them again."
New Deck Build with Trex
New Deck Build with Trex
New Deck Build with Trex
New Deck Build with Trex
Deck Project

+42

Response time9 hrs
Response rate100%
5 neighbors recently requested a quote
Avatar for Eagle Ridge Roofing & Decks LLC
Eagle Ridge Roofing & Decks LLC
4.8(
71
)
Deck or Porch - Repair

Serving Mountainside, NJ and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

We pride our company on reliability, great communication, integrity and quality work. We are experts in our roofing and siding and will do our best to keep you as educated as we can on your particular task or project. We look forward to working with you.

Projects
18 neighbors recently requested a quote
Recommended by92%of homeowners
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Showing 1-10 of 456
Deck Repair FAQs, answered by experts

Routine cleaning, sealing/staining, and inspection prolong deck life and appearance.

It is possible to pressure wash your deck, but it’s usually best to leave the work to a professional for two main reasons. First, power washers are expensive, and you can avoid high upfront costs by hiring a deck washing pro instead. Second, you must be careful to use the correct setting to avoid damaging your deck material. You can only clean soft woods like pine with a wide spray and a low pressure; otherwise, the water will leave unpleasant marks on your deck. Hard woods, composite material, and metal can stand up to increasingly higher water pressures.

For a 12x20-foot (240-square-foot) deck, you can expect to pay between $7,200 and $14,400. This cost is based on a general price of $30 to $60 per square foot. The final price will depend on factors such as the decking material, design complexity, deck type, location, and local labor costs. Keep in mind that add-ons will increase the total; for example, adding an under-deck drainage system to a deck of this size could cost an additional $7,700.

The cost to build a second-story deck averages $4,800, though the actual price could range as low as $420 to upwards of $16,000. While labor costs range between 35% and 50% of the total project cost, the materials and complexity of design will ultimately lead you to save or spend more money on this home addition.

The proper and most comfortable height for a deck stair riser, also called a step, is between four and seven inches. A height of seven inches is often considered ideal for a strain-free step that minimizes the risk of trips and falls. While it is possible to have risers up to 12 inches, this height can be challenging for children, pets, or individuals with mobility issues. For optimal safety and comfort, pair a seven-inch riser with a tread depth (or run) of at least 10 to 12 inches. Always check your local building codes, as they may have specific requirements that differ from these general recommendations.

The Mountainside, NJ homeowners’ guide to deck repair services

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