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

508 Woodworks
4.8(
12
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Grafton, NH and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"I highly recommend this contractor. Very professional, proficient, and reasonably priced. Great communicator. Showed up when he said he would. Worked quickly and efficiently. End product looks great. My neighbor was so impressed when she saw his work that she hired him to clean, sand, and stain her deck too."
100 Foot Deck
100 Foot Deck
100 Foot Deck
Deck With Pergola
Deck With Pergola

+21

Response time30 mins
Response rate88%
Recommended by90%of homeowners
Sonart Construction Corp.
2.3(
7
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Grafton, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

"I recently had my shingle roof replaced and I?m very happy with the results. The team was professional, punctual, and completed the job efficiently. The quality of the work is excellent, and the new roof looks great. They kept the work area clean and communicated well throughout the process. I would definitely recommend them to anyone needing a roof replacement."
Avatar for Time To Paint
Time To Paint
New to Angi
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Grafton, NH and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

Need a project done, but not sure who to call? I’m your local expert for a wide range of home improvement and repair services. With a versatile skill set in [Skill 1], [Skill 2], and [Skill 3], I specialize in tackling those tough jobs that require multiple trades. I am committed to delivering top-tier craftsmanship, dependable service, and complete customer satisfaction. No matter the task, I have the experience to do it right the first time.

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Deck Maintenance FAQs, answered by experts

In most cases, there should be a small gap between the house and the deck, usually no more than ½ to ¾ of an inch. This space allows water and moisture to flow through instead of pooling against the side of your house. It also lets flashing protect your siding from runoff, which is one of the most common issues with decks.

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.

Before installing a deck, you must build a base for the deck to rest upon, often made of compacted soil or gravel. While gravel is an optional material, it helps with drainage. Some contractors also recommend installing a weed control membrane, which helps provide a solid foundation for the frame. In the case of an elevated deck, a pro will often lay down a concrete slab as a foundation. 

Yes, deck pier blocks can be used as an alternative to traditional deck footings, particularly for small or low-to-the-ground decks. Unlike poured concrete and buried post footings, deck blocks don’t require digging or pouring. However, their use is regulated by local building codes, and they may not be permitted in areas prone to high winds, earthquakes, or hurricanes. Always consult your local building codes before choosing them for your deck project.

A random orbital sander is best for sanding a deck because it is easier to handle than other power sanders and is less likely to damage the wood. Most decks are made of types of softwood, so a gentler sanding process is essential to prevent permanent blemishes. For example, belt sanders can gouge softwoods.

The Grafton, NH homeowners’ guide to deck maintenance services

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