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  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon43
    Verified deck maintenance services reviews

Top-Rated Deck maintenance specialists in Cos Cob - Updated Nov 2026

Avatar for Casner Home Improvement LLC
Casner Home Improvement LLC
4.8(
31
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Cos Cob, CT and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"We had a great experience. His price was reasonable. He responded to all messages. Was easy to schedule a visit to house to look at room we wanted painted. He promptly gave us an estimate and scheduled the job within 2 weeks. His work was fantastic. The room looks great. It was two colors with a chair rail separating. He was neat and cleaned up everything. He was polite and professional. Would definitely use again and recommend him to others."
Logo
New Deck
New Deck
New Deck
New Deck

+13

32 neighbors recently requested a quote
Recommended by86%of homeowners
Avatar for Outstanding Pressure Washing Service
Outstanding Pressure Washing Service
5.0(
20
)
Deck, Fence, Patio or Porch - Clean and Seal

Serving Cos Cob, CT and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Nelson, came to my home last night to power wash my back porch, which has composite decking on it. Nelson went above and beyond, very personable, very thorough, the cost was good and I am so pleased. I would recommend this man in a heartbeat. Nelson was his first name and he is a beacon Falls resident and I know who will be power washing from now on at my house. Thank you so so much."
#1002 Ranch
#1002 Ranch
#1002 Ranch
#1002 Ranch
#1002 Ranch right front

+9

Response time4 hrs
Response rate97%
1 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)
Deck, Fence, Patio or Porch - Clean and SealDeck, Fence, Patio or Porch - Clean and Seal - For Business

Serving Cos Cob, CT 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!

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Deck Maintenance FAQs, answered by experts

There are approximately 5.33 board feet in a 2x4. You can use the board foot calculator in this article to easily find the answer. A 2x4 is 2 inches of thickness by 4 inches of width, so you need to find the length, with 8 feet being the most common. You’d use the calculator here to multiply 2 times 4 times 8, and then divide by 12, arriving at a total of 5.33 board feet. 

Yes, it’s definitely possible to build a pergola on an existing deck. All you need to do is attach the pergola support beams to the deck’s joists and build up from there. Beware that mistakes can damage your deck, so if you’re at all unsure of the process, play it safe and hire a pro for your custom build.

Composite decking requires a solid foundation or substructure for support. This base is typically a frame composed of posts, beams, joists, and footings. The frame can be built from various materials, such as composite, plastic, timber, or metal, depending on your budget, deck type, and environmental conditions. For maximum stability, a professional deck builder may recommend installing this frame on top of a solid concrete base. It is best to discuss the most suitable substructure design and materials for your specific project with a professional.

A ground-level deck is a great idea for an outdoor space because it’s easy to access and doesn't require stairs or railings. You can install a ground-level deck near your home or farther away on your property. You can place a ground-level deck around a pool, fire pit, or near a view such as a lake, pond, or area of trees.

Local building codes don’t specify the number of steps a deck can have before a railing is required, mainly because stair height varies widely. Most areas require decks 30 inches or higher to have a railing. While not exact, that roughly equates to four to seven steps.

The Cos Cob, CT homeowners’ guide to deck maintenance services

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