Deck Drainage Systems: Keep Your Deck Dry and Functional

A deck drainage system is an essential feature for anyone looking to maximize the usability and longevity of their outdoor space. These systems are designed to divert water away from your deck, keeping the area underneath dry and protected from the damaging effects of moisture. Whether you’re looking to create additional outdoor living space below your deck or simply want to protect your investment, a deck drainage system offers numerous benefits.

Why Install a Deck Drainage System?

  • Protects Structural Integrity: By diverting water away from the deck’s foundation, a drainage system helps prevent wood rot, mold, and mildew, all of which can compromise the structural integrity of your deck over time.
  • Expands Usable Space: allows you to create a dry, usable space beneath your deck. This area can be transformed into an outdoor living space, storage area, or even a screened-in patio, adding versatility and value to your home.
  • Enhances Longevity: By keeping water from pooling on or under your deck, a drainage system helps extend the life of both the deck surface and its supporting structure. This means fewer repairs and replacements in the long run.
  • Improves Aesthetic Appeal: A well-installed deck drainage system can enhance the overall look of your deck by eliminating unsightly water stains and keeping the space beneath clean and dry. It also helps in maintaining the deck’s finish, reducing the need for frequent staining or sealing.
  • Prevents Water Damage: Without proper drainage, water can seep into your home’s foundation, causing serious damage over time. A deck drainage system protects not only your deck but also your home from potential water-related issues.

Under deck drainage system by GM Decks

Types of Deck Drainage Systems

  • Under-Deck Drainage Systems: These systems are installed below the deck boards and are designed to catch water that falls between the gaps. The water is then channeled away from the deck through a network of gutters and downspouts, keeping the area underneath dry.
  • Above-Joist Systems: Installed over the joists before the deck boards are laid, these systems create a waterproof barrier that prevents water from reaching the deck’s substructure. Water is directed away from the deck, protecting both the joists and the area below.
  • Waterproof Decking: This option involves using special waterproof decking boards that have built-in drainage channels. While more expensive, this system eliminates the need for additional drainage components and provides a sleek, integrated solution.

Installation

  • Planning and Design: The first step in installing a deck drainage system is planning the layout. Consider the size of your deck, the direction of water flow, and where you want the water to be directed. A professional can help design a system that suits your specific needs.
  • Materials: Choose high-quality materials that are durable and resistant to weather conditions. Components like gutters, downspouts, and drainage membranes should be selected based on their ability to withstand moisture and UV exposure.
  • Installation Process: The installation process varies depending on the type of drainage system you choose. For under-deck systems, the panels are typically installed at a slight angle to direct water toward the gutters. Above-joist systems require careful placement of the waterproof membrane to ensure complete coverage.
  • Maintenance: Regular maintenance of your deck drainage system is important to ensure it continues to function properly. This includes cleaning out gutters and downspouts, checking for any blockages, and ensuring the drainage paths are clear.

Transform Your Outdoor Space 

A deck drainage system is an excellent investment that not only protects your deck from water damage but also allows you to make the most of the space beneath. Whether you’re looking to create a new outdoor living area or simply want to safeguard your deck, a drainage system offers long-lasting benefits that enhance the value and functionality of your home.

Why Choose Decks Decks & More Decks?

4.9
Based on 267 reviews
powered by Google
Terry Meyers
16:57 25 Sep 25
They were very fast and effiecent and profesional. tore the old deck down in less then three hours and had the new built by the end of the second day. looks great.
Response from the owner 15:44 26 Sep 25
Thank you for choosing our family company to build your beautiful deck! Thank you for referring us and we wish you many years of enjoyment on your deck!
Abel Lugo
21:15 23 Sep 25
Outstanding company workers are very knowledgeable about what there doing, courteous cleaned up after there selves. The deck looks great outstanding product will last long time thank you
Response from the owner 18:02 24 Sep 25
Thank you for all the kind words and we're so happy to hear how much you love your new deck!
Jimmy Sramek
23:14 22 Sep 25
Just replaced my front deck of over 30 years
Decks,decks and more decks was our choice to handle the project
Very happy that we did
Everyone was very professional and easy to work with from start to finish
Would definitely recommend to anyone that is interested in a replacement or brand new deck project
Thank you to all team members involved in our project
Response from the owner 17:23 23 Sep 25
Thank you for referring our family company to anyone who would like a new deck! We are glad you chose us too!! Enjoy your beautiful deck!
Cheryl Dolinski
22:01 21 Sep 25
after having an above the ground pool and a deck that went around the pool removed ( which Decks, Decks, and more Decks built in 1993) I needed a new deck and of course I would have no other deck company then Decks, Decks and More Decks. I worked with Rob to come up with a design. He listened to what I envisioned, and he came up with a beautiful design. Josh was the lead for the crew and he is awesome. I was update daily. Josh is very detailed oriented and having someone who pays attention to details is what makes your deck exceptional! The crew was very respectful of my property. I highly recommend this company !
Response from the owner 13:28 22 Sep 25
We were happy to be able to work with you twice and so glad you are so happy with your new deck! We are very detailed oriented and like to pay attention to detail! We wish you many years of enjoyment on your beautiful deck!
Terry Thompson
15:35 16 Sep 25
Nice job on the deck by Blake and the crew. Started and finished on time.
Richard
14:44 11 Sep 25
Professional in every aspect. Work done as scheduled and deck looks fantastic.
Response from the owner 13:11 12 Sep 25
Thank you! Enjoy your beautiful deck!
James McGrail
18:18 08 Sep 25
I recently had the good fortune of engaging the firm of Decks, Decks, and More Decks to replace a 26 year old wooden deck. The process was stimulating as they have a myriad of choices to suit everyone's needs. A first rate showroom with the latest offerings and price points made decisioning easier than anticipated. I met with Robert Walker and within an hour had a complete plan for a long term maintenance free deck that anyone would be proud to own. I chose composite decking with a 30 yr warranty and cast aluminum railings that are absolutely gorgeous.

Their construction crew spent @4.5 days to complete. They were exceedingly professional and craftsmanship was their foremost concern which included a true quality control inspection when completed. They were very respectful of my property and I'm quite proud to share my experience.
Response from the owner 14:40 10 Sep 25
Our family owned company is very proud of our craftsmanship and we are so happy to hear that we exceeded your expectations! Thank you for all your kind words and we are so excited that you will be enjoying your beautiful deck for many years to come!
Joni Huddleston
23:06 26 Aug 25
Very professional and easy to work with! A high level of professionalism in their work.
They were very diligent in their work and even clean up! We would highly recommend them!
Response from the owner 13:17 27 Aug 25
Thank you for sharing your experience and for highly recommending our family company!
LaDonna Strong
20:57 26 Aug 25
They did a great job, from the initial appointment (at their showroom) until completion of the project. They required no up front costs and didn’t try to upsell us on any additional products. They did an awesome job, the quality of the deck is great and we couldn’t recommend this company more.
Response from the owner 13:20 27 Aug 25
It's wonderful to hear how happy you are with our company and the quality of your deck! Thank you for recommending our family company!
Andrew Smith
15:33 18 Aug 25
We used Decks, Decks and more decks. Josh and his crew did a great job.
Response from the owner 13:14 27 Aug 25
We enjoyed building a beautiful deck for you and we wish you many years of outdoor enjoyment on it!