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Professional Membranes & Underpad Solutions in Montreal | Cosmaroma

At Cosmaroma, we offer an exceptional selection of premium membranes and underpads that provide the essential foundation for successful flooring installations. Whether you’re a professional contractor working on commercial projects or a homeowner tackling renovation applications, our comprehensive range of membrane products and specialized underpads in our Montreal store is designed to meet every project requirement. From high-performance moisture barriers and sound-dampening systems to protective membranes, vapour control solutions, and professional-grade installation accessories, we offer the ideal solution for your every flooring need.

Our showrooms and online store feature an impressive array of membrane products and underpads, which professional Montreal contractors and homeowners alike consistently choose for their outstanding performance and reliability. These versatile flooring protection systems complement both demanding commercial installations and residential renovation projects alike. They provide the moisture control and structural support needed to achieve professional results with remarkable effectiveness and lasting satisfaction.

To ensure complete project success, Cosmaroma carries a comprehensive range of membrane and underpad accessories — including premium moisture barriers, high-performance sound dampening systems in various densities, vapour control membranes, protective underlayment films, effective sealants and tapes — all available to perfectly complement your chosen flooring requirements. Whether you’re working on your entire flooring project or tackling specialized installation applications, our high-quality products bring together effectiveness and convenience in every detail.

Our experienced team is dedicated to helping you select the best membrane or underpad solution to match the requirements of your Montreal-area project and desired level of installation excellence. Whether you need specialized moisture barriers for basement applications, professional-grade sound-dampening systems for multi-storey buildings, or comprehensive protection systems for large-scale applications, Cosmaroma is your trusted flooring supplier to reflect your project standards, with options engineered for exceptional performance and installation quality.

Why Choose Us in Montreal?

SHOP ONLINE

Explore our full selection anytime through our user-friendly website. Browse our complete range of membrane products trusted by customers nationwide, and choose from our diverse collection of underpads, installation accessories, and professional tools — all from the comfort of home.

DELIVERY

We provide Canada-wide shipping at competitive rates, making it convenient to purchase flooring solutions anywhere across the country. Our dependable and prompt delivery options ensure that your products arrive on time and in perfect condition.

EXPERT SUPPORT

Have questions or need guidance? Our knowledgeable team is ready to help. We offer personalized recommendations for membranes, underpads, and installation solutions to ensure a seamless shopping experience.

Shop Now for the Best Selection of Membranes & Underpads

Why Choose Professional Membranes for Your Projects?

Selecting high-quality membranes and specialized underpad products is one of the smartest investments you can make for your project’s success, installation quality, efficiency, and flooring impact, as well as its long-term durability. Professional membranes not only enhance the performance quality of your projects but also improve your installation efficiency and protect your investment. Whether you are working on existing flooring installations or investing in specialized membrane products for demanding applications, Cosmaroma’s Montreal stores offer effective and reliable solutions tailored to your specific needs. With a variety of flooring products trusted by Montreal professionals, Cosmaroma makes it easy to complete your projects with authentic installation excellence and practical effectiveness.

Explore the Right Membranes for Your Projects

Every project deserves products that reflect flooring standards and meet practical demands. Our stores offer a carefully curated selection of flooring solutions that customers trust. They are manufactured from premium materials and come in an extensive range of applications to enhance any flooring project. Whether you're looking for premium moisture barriers for basement applications, versatile sound-dampening systems in various densities for noise control, specialized vapour control membranes for demanding installations, or comprehensive protection systems for project maintenance, you'll find the perfect match in our collection.

Client Testimonials

Client Reviews

Cosmaroma Home Renovation Supplies - Montréal place picture
4.9
Based on 84 reviews
Sergii Semenchenko profile picture
Sergii Semenchenko
3 months ago
I am very satisfied with Cosmaroma. The store has a great selection of products and very reasonable prices.

I would also like to thank the staff, especially Ali. He is the best—always willing to help with difficult decisions and always open to communication. His knowledge, professionalism, and friendly attitude make every visit a pleasant experience.

I highly recommend visiting Cosmaroma!
Sean Sullivan profile picture
Sean Sullivan
3 months ago
I have been shopping at Cosmaroma since they opened in the West Island. Ali is the manager, and he has been giving me great service since I met him. I recently had issue with a Hydroblok shower kit that I had bought at Cosmaroma. The box indicates there were supposed to be 7 panels included, but the packaging said 5. Without opening it I drove 1 hour from Ontario where my client is to resolve this with them. Also, the pan extension I bought for the kit was the only option, but a different thickness than the shower kit, so not the solution it should have been. Hudronlok never returned my request for someone to contact me. Ali made it right between us as his supplier was getting back to him with a solution.
New Mood profile picture
New Mood
3 months ago
The 5 stars mainly for Ali. He's such an incredible person, goes out of his way to help customers . He's definitely carrying the store.
Alex profile picture
Alex
4 months ago
Was referred to cosmaroma by one of my contractors. Not only are their prices and selection excellent, but you also get the customer service on every order....whether it is 5000$ or 50$. Anything I can buy from them, I do. I hope that they will continue expanding and bring in more items over the years. Thank you to the team, from the managers to the delivery guys. Always a pleasure.
ella carl profile picture
ella carl
9 months ago
Nice people and good selection but very unorganized and took almost an hour waiting at the dock to get our flooring. :(
Very good customer service!
Ali Madi was really great and so helpful, we had a little issue with an order but Madi was so great to solve it quickly and so understanding.
Also, very good prices and reasonable.

Thank you Madi we really appreciate.

Andrew & Karen :)
Always helpful. Great pricing compared to big box stores. Everyone there knows their inventory
bob impellezzeri profile picture
bob impellezzeri
11 months ago
Ali and his staff are incredible I've been doing renovations for over 20 years without advertising all word of mouth. I've never wanted accolades for my work cause that's my job but I want to give accolades to cosmorama I have sent numerous customers to this store to purchase flooring doors moldings etc. The prices beat all the box stores and the service you receive are unheard of in any other store it seems every week they are bring in new products if you want to save money without compromising quality this is the store for you amazing jus saying
Lawrence Khoury profile picture
Lawrence Khoury
1 year ago
First time visiting this company. Was pleasantly surprised at the excellent customer service. Nice selection of flooring, trim, doors and all sorts of tools. Prices were competitive or better than HD or Rona. Will be back.
Alex T profile picture
Alex T
1 year ago
Amazing customer service at Cosmaroma Montreal! They remember your name from a single visit. Moe is awesome but so are others. All products i purchased were great and as promised - floor ( which we love and which exceeded any other options from big stores) , trims, doors, etc. Took me 3 months to complete my finished basement and i could not possibly do it on the budget shopping somewhere else. Great prices with no compromise on quality. Also flexible shipping- all requests were accommodated!
Seretin Igor profile picture
Seretin Igor
1 year ago
👍
Johnny Makris profile picture
Johnny Makris
2 years ago
Great people, awesome prices and good service! Be sure to ask about the Ali guarantee ;)
Georges El Hage profile picture
Georges El Hage
2 years ago
I had a great experience at Cosmaroma! The service was impeccable and a big thank you to chef Ali “Moudir” for his professionalism and warm welcome. He took the time to advise me well and ensure that I found exactly what I needed. In addition to the top service, the prices are exceptional! I highly recommend this store to anyone looking for quality products at great prices!
nawal chai profile picture
nawal chai
2 years ago
Weird people and the announcement is not comparable, it's nonsense and the people who work serve no one and are incompetent
Martha Karras profile picture
Martha Karras
2 years ago
Ali is the best!! I love my floors!! Great service, quality and price! Thank you!
alch mteo profile picture
alch mteo
2 years ago
“I recently had the pleasure of visiting Cosmaroma Montreal , and I must say, the experience was outstanding. From the moment I walked in, I was greeted warmly by the knowledgeable and friendly staff ( Ali & Johnny and the team ). He tooks the time to listen to my concerns and provided expert advice. What impressed me the most was the transparency and honesty , I highly recommend Cosmaroma Montreal in Pointe claire , Their exceptional service, expertise, and dedication to customer satisfaction have earned my trust and loyalty.”
Salim Chedid profile picture
Salim Chedid
2 years ago
Excellent team to help the clients with product and construction advice. I had the pleasure to be assisted by Ali for many products, the service is way better than what you get at home depot and reno depot!! And the best thing is the great prices!!!
Mitra Mazhari profile picture
Mitra Mazhari
2 years ago
STAY AWAY!!!!!!!!!
I made a special order of engineering wood flooring at Cosmoroma. The finishing was supposed to be semi-gloss. once the wood was delivered and my contractor had his men install a few pieces I saw that the finishing was more matte than semi gloss. I went to the store and I showed them the sample and the manager, Ali, agreed that it wasn't the same as what I had ordered, but he said to continue to put the rest of the floor because they can varnish it. My contractor had his Men finish putting the wood on two of the three bedrooms. Ali made me wait a week and still he didn't have any varnish or someone to come to do the work, so I contacted NELSON who is the supervisor at Cosmoroma in Ontario. He asked Ali and Johnny from Cosmoroma Montreal to come to my house to take videos and pictures of my flooring to compare with the sample board. It was extremely evident From the videos and the pictures that I took and they took that my flooring was more mat than semi-gloss. However, when I contacted him, NELSON told me that he saw the videos and pictures and he spoke to some members of the company and they all agreed that the finishing was done perfectly well!!! Everyone who has seen it including ALI and JOHNNY agreed that the shine was not like on the sample board, but they decided to lie, even though I have proof…… I have decided to take them to court because they left me no other choice. Stay away from this company because they make you promises in the beginning and they don't deliver at all. The employees that I have spoken to so far have absolutely no integrity or professionalism and they do not deserve to be in the service industry because they're all crooks!!!

---------> And I just saw the response from Nelson (I believe it was him, as I assume he's too embarrassed to sign his response). His response confirmed the lack of integrity and professionalism of himself and the other two people I dealt with at this company. Who speaks to their customers that way? This is the way he was speaking to me on the phone!!!!! In fact it should be you Mr. Nelson Pascoal Who should be embarrassed at the way you conducted yourself during our phone conversation earlier which led me to write this review. I think I conducted myself with enough respect for three people who wasted my time for eight days and continued to lie, telling me that they will varnish the floor for me and not to worry, only to tell me in the end that they refuse to do anything about the inferior product they sent me which I paid top dollar for. Once more. You have everything to gain by lying in this situation. If I was a happy customer I would not be leaving this review for you. However, it is only you that benefits from lying because you sold the inferior product. See you in court Mr. NELSON!
Rita Hajjar profile picture
Rita Hajjar
5 years ago
The best service and price I could find in town. Thanks to the managers. They did a good follow up till I ve got my vanity at home.

Frequently Asked Questions

Everything You Need to Know About Buying Membranes & Underpads

A: We offer a comprehensive selection of membranes and specialized underpads, including premium moisture barriers for water protection, sound-dampening systems in various densities, high-performance vapour control membranes, protective underlayment films, effective sealants and installation tapes, versatile installation accessories, and professional-grade flooring protection systems. Whether you’re looking for flooring solutions for residential projects, specialized membranes for commercial applications, heavy-duty products for demanding spaces, or professional installation systems for detailed use, you’ll find high-quality options to suit every flooring requirement and budget.

A: Yes! You can purchase flooring products and have them shipped directly to your home or project site. We also offer Canada-wide delivery at competitive rates, with options for local pickup at our store locations across Ontario and Quebec, including Montreal, North York, Mississauga, Ottawa, Barrie, London, Montreal, and many other cities.

A: Absolutely. In addition to our wide range of membrane products that customers trust, we also offer specialized flooring accessories, including high-performance installation systems, professional kits, precision tools, and project accessories, to help you achieve professional-quality results with coordinated efficiency and reliability.

A: Our Montreal stores’ collection of membranes includes options suitable for every application and flooring vision. For professional contractors and installers, we offer commercial-grade products, specialized flooring systems, and professional installation solutions. Homeowners might consider our premium moisture barriers, effective sound-dampening systems, and user-friendly flooring kits. All our flooring products are selected for their quality and performance in various residential and commercial applications.

A: Shopping at Cosmaroma offers several advantages, including access to flooring products with exceptional installation effectiveness, expert guidance from our knowledgeable team, and convenient online ordering with dependable delivery. Customers appreciate our comprehensive selection, which combines high-quality membranes with practical flooring features, along with our commitment to providing both professionals and homeowners with the right flooring solutions to complete their projects successfully.

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