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

Avatar for Inside-Out Maintenance
Inside-Out Maintenance
4.5(
38
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Gilsum, NH and surrounding areas

Approved

In business since 2002

Free estimates

Offers commercial services

"Charlie came to our house & fixed our screen door. Had him fix a few other things which he had to go to Home Depot for. Quick & efficient. We will hire him again🌟💫"
Deck
Planters and benches
French door Replacement
French door Replacement
lake camp

+11

Response time2 days
7 neighbors recently requested a quote
Recommended by93%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 Gilsum, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

Avatar for Oliver Druen Carpentry
Oliver Druen Carpentry
4.5(
23
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Gilsum, NH and surrounding areas

In business since 2004

Free estimates

Emergency services offered

"The deck addition to our porch is beautiful as well as very sturdy. It was a pleasure to work with Oliver. Everythihg was professionally done and in a timely manner. He far exceeded our expectations and his price was very reasonable."
Before
Before
New look for an old bathroom
Very small bathroom in need of a little tlc
 removal of the old

+33

Recommended by100%of homeowners
Showing 1-10 of 43
Deck Maintenance FAQs, answered by experts

Most building codes require that railing spindles (also known as balusters) on decks or stairs be spaced no more than four inches apart. This safety standard is often called the '4-inch sphere rule,' which means a sphere with a 4-inch diameter should not be able to pass through the opening between balusters. This rule is in place to prevent small children and pets from slipping through the railing. For the same reason, the space between the bottom rail and the deck or floor surface should also be no more than four inches. As a general guideline, professionals often install three balusters per foot of railing. However, since specific requirements can vary by location, it is essential to check your local building codes to ensure compliance before starting your project.

Applying too much sealer to a deck might seem like extra protection, but it can cause more harm than good. Wood is a porous material with a limited capacity to absorb liquids. When you go overboard with sealer, the excess can't soak in and instead forms a film on the surface. This leftover layer is prone to peeling, cracking, and trapping moisture, ultimately defeating the purpose of sealing in the first place. 

Deck stairs should have at least three stringers rather than two. The recommended minimum width for stairs is 36 inches, and the International Association of Certified Home Inspectors recommends at least three cut stringers to provide sufficient support on wood decking stairs of this width. Generally, stringers should be a maximum of 16 inches apart for wood decking and 12 inches apart for more flexible composite decking.

You should refinish your deck to maintain its appearance, durability, and longevity. Refinishing your deck protects the wood from foot traffic and the elements. It also helps extend its life span by keeping rot, mildew, and termites at bay. By maintaining your deck, you can avoid the cost of replacing your deck sooner. A refinished deck also looks great and restores some of its original beauty.

When installing deck boards, screws are generally a better option than nails. Screws offer superior holding strength over time, keeping the boards securely in place. In contrast, nails are more likely to pop out, which can create a tripping hazard. While you can use either, we recommend using 3-inch galvanized deck screws. To minimize the risk of cracking the wood, it's a good practice to drill small pilot holes before driving the screws into the deck joists.

The Gilsum, NH homeowners’ guide to deck maintenance services

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