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TRUSTED BY DENVILLE, NJ HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon111
    Verified deck maintenance services reviews

Top-Rated Deck maintenance specialists in Denville - Updated Nov 2026

Avatar for RAP Painting & Pressure Washing
RAP Painting & Pressure Washing
5.0(
126
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Denville, NJ and surrounding areas

Approved

In business since 2000

Free estimates

Emergency services offered

"Rich, owner of RAP, and his dedicated crew did an awesome job in power washing our house, storage shed, deck, and brick walkways … everything is clean, bright, and frankly looking like new again! Rich is knowledgeable, responsive, punctual, professional, and an absolute pleasure to work with. He and his crew were meticulous in their work taking their time to do a job that well exceeded expectations and were conscientious in their clean-up efforts afterwards. It is indeed rare these days to see extraordinary focus on customer delight and pride in their work. I highly recommend Rich and look forward to working with him again in the future!"
Response time12 hrs
1 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Pro Builder New Jersey, LLC
Pro Builder New Jersey, LLC
4.8(
59
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Denville, NJ and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quick response

"I hired Pro Builder. Exceptional deck work! They are evident in every detail. The team demonstrated skill and precision, transforming our outdoor space into a functional and visually stunning area. Communication was clear, timelines were met, and the end result exceeded our expectations. Highly recommend for anyone seeking top-notch deck construction. Thank you Pro Builder."
Response time2 days
5 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Experienced Landscape Design LLC
Experienced Landscape Design LLC
4.9(
46
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Denville, NJ and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Paul and Laura were fantastic to work with. They really listened to what we wanted to accomplish with our project and which plants we wanted to save in our old beds. They went with me to the nursery to discuss what kinds of plants I liked and create the style I was looking for, using their knowledge of what would grow well in my area and be deer resistant. They were very willing to work within our budget and then went above and beyond to give us the best experience. We were so happy with the garden renovation that we have now hired them to do all of our weekly mowing, weeding and maintenance."
Additional Photos
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+131

Response time2 days
Response rate100%
3 neighbors recently requested a quote
Avatar for Best Builder Construction
Best Builder Construction
5.0(
53
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Denville, NJ and surrounding areas

Approved

In business since 2024

Free estimates

Emergency services offered

"I would recommend this company to others. They are professionals that go above and beyond expectations. There are few roofing companies willing to come out to clean gutters on an old house. Their workman was quick and efficient while being respectful and friendly. I am so glad to find a company with great customer service"
Roof Instalation
Chimney
Replaced Roof
Siding
Siding Instalation

+2

Response time5 hrs
Response rate100%
23 neighbors recently requested a quote
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Deck Maintenance FAQs, answered by experts

A deck doesn’t have to be perfectly level. Many pros even recommend a gentle slope to ensure proper drainage and increase longevity. The ideal gentle slope is about 1/8 to 1/4 inch per foot away from the property, leading water away from the home to prevent pooling and reduce the risk of damage. It also minimizes rot, mold, and other moisture-related problems. 

It is recommended to clean your deck once or twice a year to prevent the accumulation of dirt, debris, mold, and mildew. The ideal times for cleaning are in the spring and fall. A spring cleaning removes grime that has built up over the winter, preparing your deck for summer use. A fall cleaning washes away messes from summer activities, preventing them from setting into the wood over the winter. The exact frequency can depend on factors such as how often the deck is used, its exposure to pollen, and whether salt was used on it during the winter. Regular cleaning helps protect the wood and its finish from damage.

Choices include wood, composite, and hardwoods, each with unique benefits.

Decks require several inspections during and after the building process, but the specifics vary depending on where you live. Most areas mandate that decks comply with local building codes and safety regulations for the foundation, framing, and structure. Some pros recommend a footing inspection, which verifies the depth, width, and location of the various footings to ensure they offer enough foundational support.

The average cost to professionally clean or pressure wash a deck is around $150, with prices typically ranging from $100 to $600. Several factors influence the final price, including the deck's size, material, condition, and how long it has been since its last cleaning. For a smaller deck of about 300 square feet, you might pay around $100. For a larger deck of 1,000 square feet or more, the cost could be closer to $300 to $400. Decks that are very dirty or haven't been cleaned in years may require more time and special detergents, which will increase the price. The deck's material also plays a role. Wood decks often cost more to clean because they require a gentle power washing technique to avoid damage. Composite decks are typically less expensive to clean, and cleaning a metal deck may cost around $100.

The Denville, NJ homeowners’ guide to deck maintenance services

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