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How Much Does it Cost to Seal a Deck in Demarest?

Typical Range: $365 - $476

The average deck sealing cost in Demarest is $365 - $476, but it could vary from $309 to $532. Discover the detailed price range here.

This estimate is based on actual data from 32 completed projects in Demarest area and is valid through 07/20/2026. Please keep in mind that actual costs may still vary.

How Much Does it Cost to Seal a Deck in Demarest?

Deck sealing in Demarest is an effective way of maintaining your deck. While regular cleaning can help in keeping your deck in good condition, there are still certain benefits that you can only get with a quality Demarest deck sealing. Sealing is particularly needed when your deck starts showing signs of wear and tear. Old age can take its toll on the surface of any deck, especially on wood. Using harsh and abrasive cleaning materials and even power washing can potentially harm any wood decking. If your deck is suffering from these issues, it is best that you get deck sealing in Demarest. There are many benefits that come along with getting professional Demarest deck sealing. Sealants can be applied to protect your deck from UV rays and water. A clear sealant will allow the natural color and beauty of the wood to show. It will also help protect the wood from moisture and damage caused by long exposure to the sun. Most homeowners tend to paint their wood. However, paint does not provide the same protection that sealants do. Deck sealing in Demarest is an affordable way of prolonging the life your deck. Not only that but it can help in reducing the wasted wood because of poor maintenance and irreparable damages.

What is the price for Deck Sealing in Demarest, NJ?

Home remodeling & home services cost estimates
ITEMQUANTITYLOWHIGH
Deck Labor6 Hours$233$423
Deck Job Materials and Supplies200 Square Feet$26$42
Deck Equipment Allowance$51$67
Total Cost to Clean Decks215 Square Feet$310$533
Average cost per Square Foot$2$3
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Fair price breakdown

Deck sealing in Demarest has been estimated to cost around $790 on average. Its cost can go as low as $250 and as high as $1,700 with the majority of homeowners spending between $500 and $1,100. Demarest deck sealing is quite different from deck staining. Staining is usually used to change the color of the wood and make it more aesthetically appealing. On the other hand, deck sealing in Demarest is primarily used to protect the wood from damages caused by sun exposure and water. The cost of sealing a deck depends on the size of the deck, the sealant to be used, and labor cost. An average sized deck may need two gallons of sealant which can cost around $50 to $80. There are two kinds of sealants that can be used in Demarest deck sealing; oil-based and water-based.

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Find the Best Costs on Deck Sealing - Demarest, 07627

Oil-based sealants are a bit more expensive than water-based sealants. Oil-based can either be penetrating or coating. In most cases, they can be both. Water based sealants are considered to be coatings only. They can be cleaned easily but they are less resistant to wear and tear. There are several brands of sealants being used in Demarest deck sealing projects. They all come in varying prices. Some of the most common sealants are TWP which can cost around $30 to $40 per gallon, Behr which costs $20 to $35 per gallon, and Olympic which can cost $25 to $45 per gallon. All other products are estimated to cost around $14 to $40 per gallon. A professional usually charges $40 to $70 per hour for deck sealing in Demarest. This rate can change depending on the difficulty of the task and if there are any preparations needed before applying the sealant.

Demarest County Deck Sealing FAQ

It is recommended to get deck sealing once every 14 to 18 months. However, if your deck is not exposed to sun and rain a lot, you might need deck sealing every two years.

Before sealing your deck, it is important that all previous sealants and stains must be removed thoroughly. The deck must be cleaned and should be dried for 48 hours.

Light foot traffic will be fine after 24 hours. However, you need to wait for at least 48 hours before putting any heavy object like furniture pieces on a newly sealed deck.

Last Updated: Apr 26, 2026

Local pros & Availability

Carpenters available in your area

1

BRIGHTEN BROS INC

Rating: 67
P O BOX 125
Demarest, NJ 07627
2

Randy’s Roofing construction

Rating: 91
Edgewater, NJ 07020
3

Extreme Builders

Rating: 77
2037 Lemoine Ave.
Fort Lee, NJ 07024
4

Romero & Wofsy Studios LLC

Rating: 66
212 Riverview Pl
Cliffside Park, NJ 07010
5

Costa Home Improvement

Rating: 67
171 Cedar St
Fort Lee, NJ 07024
6

Terra Bella Landscaping

Rating: 75
Cliffside Park, NJ 07010

Deck Sealing highlights

  • Long lasting Deck Sealing in Demarest NJ
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Recent Requests near Demarest, NJ

Deck

Megan M. Hackensack, NJ

We are looking to replace a deck that has been taken down in our backyard. Approx 300 square feet. Would like to get a quote.

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Pj H. Teaneck, NJ

Looking for an estimate for a deck addition.

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Ron D. Mount Vernon, NY

getting estimates for a deck in backyard. 12 wide by 8 or 10 feet long. Attached to house from sliding door. 3 to 4 stairs, plus railing. This is a rental, need to provide plans to landlord prior to approval. E-mail is preferred, or leave message on phone.

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Aj S. Hackensack, NJ

Deck in place has some rotting spots and we would like to repair those sections. Then we have an old jacuzzi pump that is currently covered with a decking structure that we will be removing. Would like to build/replace that structure with more even decking vs the current 'box'.

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Chris B. Mount Vernon, NY

Im interested in building a free standing 12 x 16 deck on my modular home. I need it done quickly cause I just tore down the other one and we got a baby on the way in ablut two weeks. gotta get it done so we can use it.

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Deck Sealing in Demarest, NJ - Costs 06 / 2026 - homeyou