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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%
22 neighbors recently requested a quote
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Deck Maintenance FAQs, answered by experts

Yes, it is possible to add an under-deck drainage system to an existing deck by retrofitting it to the structure. This process may require some prep work. For example, many drainage systems are installed on top of the deck joists, which would require you to remove the decking boards and railings first. To avoid this, you could opt for a below-the-joist drainage system. For best results and to ensure proper installation, it is recommended to consult a professional. A pro can inspect your deck, make any necessary repairs, and then install the drainage system correctly.

A wood deck requires annual cleaning and regular inspections for loose or broken boards, nails, and screws. It should be refinished by applying a stain or sealer every two to three years to protect the wood from water damage, rot, mildew, and sun fading. The exact frequency can depend on the climate and the deck's exposure to sun and moisture. If your deck is painted, it will need repainting approximately every 10 years. Signs that your deck needs refinishing include faded, splintering, or warping boards.

Yes, you can build a deck over your outdoor HVAC unit, but you need to leave at least 5 feet of vertical clearance above the unit. If you don’t want your deck to be that high off the ground, you could build a floating deck in another part of your yard—again, as long as you leave at least 4 feet of horizontal space between the deck and your AC unit.

Composite decking may never warp, or it may warp quickly. Several factors can influence the rate of warping, including the material's quality, installation method, and installation location. Generally speaking, high-quality materials that have been installed properly are drastically less prone to warping.

Deck boards should be spaced no more than three-eighths of an inch apart. This is enough space to allow water and small debris to pass through without collecting on the surface, but not enough to create a tripping hazard. Certain materials, like pressure-treated wood, shrink over time, so they may need less space at installation.

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.