Waterproof decking builders

The space under the terrace, located on the second floor, can also be used rationally. They often organize an additional recreation area, a children’s play area, a veranda for outdoor dining, store household or sports equipment, etc.

However, this space under the deck will be functional only if rainwater does not seep into it from the deck. Our company will help to ensure maximum comfort from the construction of the terrace. Delta Decks Toronto – waterproof deck contractor. We have been working since 2005, during this time we have implemented many projects, which can be found in the portfolio. Our team knows how to reliably protect the space under the deck from moisture.

  • Your Expert Deck Contractors
  • Unmatched Experience in Toronto Deck Building Industry
  • Specializating in Low Maintenance Decking and Ipe Wood Decks


The first reason is the comfort of staying in the area under the terrace. With well-organized waterproofing, you can be in it even during a downpour without the risk of getting wet. And additional glazing or the use of a mosquito net will allow you to dine without annoying insects.

The second reason is the safety and durability of the terrace itself. In most cases, the frame of the structure is wooden, and this material is very susceptible to moisture. If the tree is not protected from external factors and gets wet regularly, it will begin to rot over time. This happens after about 8-10 years, while the flooring itself lasts an average of 25 years. If the wooden frame is deformed, ordinary renovations are unlikely to help, you will have to build a new terrace, and this is an additional cost.

Thus, cooperation with deck waterproofing contractors is an opportunity to get additional functional space through the construction of a waterproof deck, and extend the life of the structure itself.

Waterproofing solutions

There are several ways to organize deck waterproofing:

  • Rubber flanges. The simplest solution in terms of implementation. Flanges are driven into the space between the boards, thus closing the gaps. You can also make gutters out of them, and then the water will flow to the edges. However, you need to be careful, because if the installation is incorrect, water will still seep down.
  • Suspended ceilings. They are installed under the deck, resulting in a finished ceiling and drainage system at the same time. The space under the deck is protected from moisture, but the wooden frame is not, the rain falls on it anyway.
  • Complete deck drain system. It is installed in two versions: under the beams and above them. In the first case, wooden beams are in contact with water: it flows through them and only then is removed by the drainage system. In the second case, the tree is completely protected from rain.

We mount a drainage system that is laid above the beams and under the flooring. Rain water then enters the drain and flows down the aluminum pipes. We work with the Trex RainEscape system, by Trex Company — a system that provides complete protection against moisture, and extends the life of the structure.

Trex RainEscape features and installation

The drainage system installed above the beams is made of HDPE – high density polyethylene. This material is strong, durable, does not deteriorate or deform under the influence of ultraviolet radiation, temperature changes or precipitation. Ease of installation and quality results are the main reasons why deck waterproofing  contractors choose Trex RainEscape.

We will briefly describe the algorithm by which our specialists mount the drainage system

We prepare gutters.

To do this, we cut them according to the marked mark, depending on the distance between the beams. We also cut them in a semicircle on one side (there is also a mark for this). We install them along the cornice board so that the cut out semicircle “looks” at the opposite side of the street, and immerse the drain drain 1 inch into the downpipe. If necessary, cut or lengthen it, then fix the drain.

We form gutters.

To do this, either unfold the roll in advance, cut off the desired length and fold it in half lengthwise, or do it directly on the beams, immediately attaching the material to them and forming longitudinal recesses. We carry out such manipulations with each space between the beams until we block the entire terrace. Our masters carefully monitor so that there are no missed places.

We seal seams and holes from brackets and screws.

To do this, we use butyl tape and seal the joints of the sheets of material with it.
Important: The Trex RainEscape system is installed before the deck boards are installed, that is, during the construction phase, not the renovation. If you want to improve an already finished structure in this way, the boards will have to be removed. You can install the system yourself, but it is better to entrust this matter to professionals. So you save time and be sure that the work is done efficiently.

Timbertech® dryspace™*

The DrySpace under deck system helps keep rainwater away from your deck so you can use the most of your under deck space.

TimberTech DrySpace doubles the usable deck area!

How is TimberTech DrySpace set up?

DrySpace uses a vinyl coating that covers the beams to protect them from water. Below deck is a system that collects rainwater (or water from snowmelt) and redirects it to the side. The space under the deck remains dry.

Benefits of the DrySpace water management system

  • Easily installed under a new terrace, and under most existing ones.
  • Moisture is removed both from the terrace and from the house.
  • Increases living space.
  • Improves the appearance of the ceiling in the space below the terrace, has a beautiful finished look.
  • Extremely durable and water-resistant vinyl composition.

The TimberTech DrySpace under deck water management system is easy to install. When installing your terrace, our experts will quickly and reliably install this moisture removal system.

To protect the terrace boards themselves, a coating can be applied. Waterproof deck coating contractors offer treatment with special compounds based on enamel, latex, rubber, polyurethane and other materials. They prevent the wood from coming into contact with moisture, are available in different shades, and mask minor defects. Among the minuses: the coating may peel off, the surface must first be prepared, and it takes time for the composition to harden after application.

Deck Builders near me

Are you dreaming of building a deck in Toronto and protecting it and the area below it from moisture? Don’t have the time or skills to do everything yourself? You don’t need to search “deck waterproofing contractors near me” – contact us today to calculate the cost and discuss the details of the project.

Read Our Client Reviews

You probably heard a saying “a picture is worth a thousand words”, we think that a satisfied client is worth a thousand pictures!

Delta Decks has a very high customer satisfaction rate and we are not afraid of giving an option to a potential client to contact any of our 20 very recent clients! Please read some testimonials below. Please note these testimonials were not gathered by Delta Decks, but by a third party.


Aug. 17, 2022

Toronto, On

Delta Decks did a beautiful job on our backyard deck and patio. Our old deck was in dire need of a rebuild and refresh. Elgi was great in getting the project started and Dimitri and his team were amazing to work with throughout the project. They were extremely customer focused and detail oriented, even suggesting improvements that we had not considered. I would highly recommend this company.


Jul. 22, 2022

Toronto, ON

Delta Decks replaced my very worn old wood deck with a mineral based/pvc ‘Deckorators’ product, color ‘Costa’. Finding a taupe color was a challenge but this came close to the rest of the wood decks I still have and I did not like the grays of most other products. They did an excellent job.

Dominic in Toronto

Jul. 21, 2022

Toronto, ON

I am very satisfied with the improvements that Delta Decks made to my 12 year old deck. From my first contact with Elgi, the project manager ,to the final clean up of the jobsite I could not ask for better treatment. All my pre job questions were thoroughly answered and the advice given improved the final look of my deck. The 3 man job crew was terrific. Each of them was very professional and very conscientious. They made me feel that they wanted me to be very satisfied with their work. They answered any questions I had and they did a very good job of cleaning up before they left. A job well done.


Jul. 11, 2022


This review has been a long time coming. We had Elgi and team come in on September 2021 and after some talks about designs and materials we ended up going with a Fiberon deck. His crew was polite, neat and worked very quickly. The deck looks beautiful and the lighting on the stairs really compliments the design. Thanks so much Elgi & team, It was a pleasure working with you!

Read Our Reviews
Based on 7 reviews
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Santo DodaroSanto Dodaro
23:23 26 Sep 23
We are completely satisfied with our new Fiberon composite deck with Fortress railing. This was a turn-key project, led by Elgi (project manager) and the working team (Vlad & Alex), The attention to detail and workmanship exceeded our expectations.Overall - amazing value and a pleasure to do business with !
Scott DowdingScott Dowding
14:03 29 Apr 23
Very friendly and helpful staff.
Nicolai VaganovNicolai Vaganov
02:34 29 Apr 22
Great company, they can design and build most complex outside woodwork!Crew guys, especially Alex and Vlad are carpentry artists. Highly recommended!
ZiJi HuangZiJi Huang
16:11 25 Apr 22
Recently had a very pleasant interaction with the team at Delta Decks. I am planning to build a pool deck and Alex is handling the entire process with a great attention to detail. I have very specific needs for installers, and Alex was easy to work with, professional and delivered things on time. I am confident the project will be done impeccably and on an agreed price.
Diana YungDiana Yung
02:03 06 Nov 21
Elgi and his team were wonderful! Elgi is very knowledgeable and he didn't try to upsell us. He understood our needs, gave us good advice and we didn't feel pressured. He was very responsive and accommodating. The craftsmanship on the deck is excellent and we can't be more happy with how it turned out. Covid had caused some delays but the project was still completed within a reasonable time. Overall we were very happy using Delta Decks.
Vlad ApanovitchVlad Apanovitch
20:52 29 Jan 21
We have used Delta Decks to build a number of our decks. They work with Ipe decking, composite decks. Very attentive to details, they obtain permits and finish the job on time and on budget. Highly recommend.
Sam K.Sam K.
13:20 03 Oct 20
We are very happy with our new deck completed by Delta decks. From the first consultation with Elgi, our project manager we were very impressed with the professionalism and advice we received for the initial design of the deck. We then went to their spectacular showroom where we were able to pick from the several different options of colors and materials. The deck was completed with high attention to detail, and excellent workmanship. The two carpenters, Alex and Alex completed the job on time and on budget with no issues whatsoever. Several design changes were suggested along the way, and constant contact by Elgi ensured the final project was better than what we could have ever imagined. Their price was also very reasonable, after consulting with several deck builders we're so glad we went with Delta decks and highly recommend them!