Important clarification regarding availability
The assortment of hypermarkets may vary depending on the region and the specific warehouse. Before your trip, it is strongly recommended to check the availability of the required volume of mixtures on the official website or through the store’s mobile application in order to avoid a situation where at the checkout it turns out that there is not enough material for the entire volume of work.
Purchasing a self-leveling floor in Leroy Merlin begins with an accurate calculation of the area of the room and determining the type of mixture required, since an error in choosing the composition for wet or dry rooms will lead to the need to completely redo the coating. The assortment of a large retailer includes many brands, from budget domestic brands to premium European lines, and each of them has its own technical characteristics, drying time and requirements for preparing the base. Correctly selected self-leveling mixture will be an ideal base for laminate, tile or linoleum, will hide uneven subfloors and ensure the durability of the finish coating.
Before you go shopping, you need to clearly understand the difference between compositions for rough leveling and finishing self-leveling floors, which are poured in a thin layer. At Leroy Merlin, consultants often offer universal solutions, but for areas with high traffic or specific operating conditions, such as a bathroom or garage, specialized products with increased strength and moisture resistance are required. Ignoring this step may lead to cracking of the screed or peeling of the material during operation.
Range of self-leveling floors and popular brands
The construction hypermarkets of the Leroy Merlin chain offer a wide range of floor leveling products, covering various price segments and technical requirements. The main market share is occupied by cement-based mixtures, which are highly durable and suitable for creating thick leveling layers. Gypsum compositions are less common and are intended primarily for dry residential premises, where quick drying and no shrinkage are required. When choosing a brand, you should pay attention to brands such as Ceresit, Knauf, Bergauf and Unis, proven to be of stable quality.
- 🏗️ Ceresit CN 175 is a popular finishing leveling mixture with high fluidity and compressive strength.
- 💧 Knauf Tribon - a universal composition based on a combined binder, suitable for wooden and concrete bases.
- ⚡ Bergauf Boden Inter Gross - a quick-hardening composition that allows you to walk on the floor within 4 hours after pouring.
- 🛡️ Volma Nivelir Komfort - a budget solution with plasticizers, providing a smooth surface without cracks.
It is important to consider that each manufacturer uses its own labeling and purpose system. For example, some mixtures are labeled as “express”, which indicates a reduced curing time, while others are aimed at creating particularly strong bases for industrial equipment. In the Leroy Merlin catalog you can often find special “Eco” lines or products with antibacterial additives, which is important for children's rooms or medical institutions.
⚠️ Attention: When purchasing the mixture, pay attention to the production date. Cement compositions lose their properties during long-term storage, especially if the packaging has been damaged or stored in a damp warehouse.
Professional installations often require two-component epoxy or polyurethane floors, which are also available at major retailers, but require more complex application techniques. Such coatings create a monolithic, chemically resistant surface that does not require additional finishing. The choice between a dry mixture that requires mixing with water and a ready-made liquid composition depends on the scale of the work and the qualifications of the performer.
Calculation of the number of materials and tools
Correctly calculating the amount of mixture is a critical step to avoid a situation where there is not enough material to complete the room, which inevitably leads to the formation of seams and height differences. The consumption of self-leveling floor depends on the density of the dry mixture, which usually varies between 1.4–1.6 kg per 1 square meter with a layer thickness of 1 mm. In Leroy Merlin, the exact consumption rate is indicated on the packaging of each product, however, experienced professionals recommend adding 10% to the calculated value for inevitable losses during mixing and leveling.
To carry out the work, in addition to the mixture itself, you will need a specialized tool, which can also be purchased at the construction equipment department. The key element is needle roller, necessary to remove air bubbles from the mortar mass and ensure uniform spreading. The absence of this tool will lead to the appearance of craters and porosity in the finished coating, which will significantly reduce its aesthetic and strength characteristics.
- 🪣 Plastic bucket with a volume of at least 20 liters with smooth walls for convenient mixing of the solution.
- 🌀 Construction mixer or a drill with an attachment to obtain a homogeneous consistency without lumps.
- 📏 Notched trowel or a rule for distributing the mixture in corners and hard-to-reach places.
- 👟 Paintshoes — soles with spikes for moving on a flooded floor without damaging the surface.
The accuracy of calculations directly affects the repair budget. If you plan to fill the floor with a layer of 5 mm in a room of 20 square meters, at a consumption of 1.5 kg/m²/mm you will need 150 kg of dry mixture, which is 6 bags of 25 kg. Buying material “back to back” is risky, since even a small error in measurements or a change in the humidity of the base can increase the actual consumption.
⚠️ Attention: Never pour water “by eye”. The proportions indicated on the packaging must be observed to the nearest gram, otherwise the mixture will lose its fluidity or strength.
☑️ Checklist for preparing for purchase
Preparing the base before purchasing the mixture
Before placing an order at the checkout or paying for goods online, you need to make sure that the rough base is ready to accept self-leveling flooring, since adhesion and the final result depend on this. Leroy Merlin sells not only mixtures, but also related preparation products, such as deep penetration primers and repair compounds for sealing cracks. Ignoring the preparation stage is the most common cause of self-leveling floor peeling and the appearance of defects.
The base must be strong, dry and free of dust, oils, paint and other substances that reduce adhesion. If there are oil stains on the concrete screed, they must be removed mechanically or burned out, since no primer will provide reliable adhesion over grease. For porous and highly absorbent surfaces such as aerated concrete or old plaster, a double application is required. primers to equalize absorbency.
| Base type | Necessary processing | Recommended primer | Drying time |
|---|---|---|---|
| Concrete screed | Dust cleaning, dedusting | Universal acrylic | 2-4 hours |
| Gypsum plaster | Removing weak areas | Deep penetration primer | 1-2 hours |
| Wooden floor | Waterproofing, reinforcement | Specialized for wood | Up to 24 hours |
| Tiles (without dismantling) | Notches, degreasing | Concrete contact (quartz) | 3-6 hours |
Particular attention should be paid to the temperature and humidity conditions in the room. The temperature of the base should not be lower than +5°C and higher than +30°C, and drafts should be completely eliminated during work and drying. In Leroy Merlin you can purchase moisture meters that will help you accurately determine the moisture content of a concrete screed, which should not exceed 4% for cement mixtures and 1% for gypsum mixtures.
Expert advice: To seal large cracks and chips before pouring, use the same self-leveling floor, but mixed more thickly, or a specialized repair compound to avoid uneven shrinkage.
Technology of choice: cement or gypsum
The choice between a cement and gypsum base is a fundamental decision that determines the scope of application of the self-leveling floor and the conditions of its operation. The cement mixtures presented in Leroy Merlin are more versatile and moisture resistant, which makes them ideal for bathrooms, kitchens, hallways and even unheated rooms. They have high mechanical strength and can withstand significant loads, but they take longer to dry and shrink slightly.
Gypsum compositions are environmentally friendly, do not shrink and have the ability to regulate indoor humidity, taking excess moisture from the air and releasing it when dry. However, gypsum is afraid of water, so its use in “wet” areas is possible only with high-quality waterproofing and use on top of tiles or waterproof glue. The drying speed of gypsum floors is much faster, which allows you to lay the topcoat within 3-5 days.
- 🏠 For living rooms (bedroom, living room) - gypsum mixtures are optimal due to their environmental friendliness and quick drying.
- 🚿 For wet areas (bath, toilet, kitchen) - strictly cement compositions labeled “moisture resistant”.
- 🏭 For technical areas (garage, warehouse) - high-strength cement or epoxy industrial floors.
- 🔥 Under heated floor — special heat-resistant mixtures with increased elasticity and thermal conductivity.
When choosing, you should also consider compatibility with the “warm floor” system. Not all mixtures have sufficient elasticity and thermal conductivity to withstand constant heating and cooling cycles without cracking. Leroy Merlin products always have a corresponding symbol on their packaging if the mixture is suitable for use with heated floors.
⚠️ Attention: Gypsum mixtures cannot be used in unheated rooms, as they may collapse when residual moisture freezes. For cottages and garages, choose only cement.
Main takeaway: Cement flooring is versatile and moisture resistant, but takes longer to dry. Gypsum is environmentally friendly and fast, but is afraid of water. The choice depends on the type of room.
Purchasing process and logistics in Leroy Merlin
Purchasing a self-leveling floor in Leroy Merlin has its own characteristics related to the weight of the goods and delivery logistics. A standard bag of mixture weighs 25 kg, and the average room may require 10-20 bags, which equates to a 250-500 kg load. When visiting a store, you must take into account the carrying capacity of your personal car or pre-order the delivery service that the retailer provides with delivery to your apartment or house.
The dry building mixtures department often has promotions and discounts, especially when purchasing in bulk or as part of seasonal sales. It is recommended to check the availability of discount cards and promotional offers on the official website before your visit. In addition, Leroy Merlin has a long-term return guarantee on goods if the packaging is not opened and its presentation is preserved, which allows you to buy material in reserve and return excess.
When transporting yourself, it is important to ensure the cargo is dry. The paper packaging of the bags easily absorbs moisture, and even short-term wetness can cause the mixture inside the bag to set, making it unusable. When ordering delivery through the store's courier service, this risk is minimized, since transportation is carried out in closed bodies.
| Parameter | Pickup | Delivery by car | Delivery by courier |
|---|---|---|---|
| Cost | Free | Paid (depending on the zone) | Paid (fixed) |
| Deadlines | On the day of purchase | 1-3 days | At the selected interval |
| Climbing to the floor | On your own | Optional (paid) | Included (up to 2 tons) |
Placing an order online allows you to reserve goods in stock, which is especially important during the high repair season, when popular brands can be sold out. The system shows the real balance in a particular store, which eliminates the need to travel around several points in the city.
Life hack for large purchases
When ordering delivery of a large volume of building materials through the website, you can often receive a discount on transport services or free unloading if the promotion is valid in your region.
Frequently asked questions (FAQ)
Is it possible to pour a self-leveling floor over old tiles without removing them?
Yes, it is possible, but it requires careful preparation. The tile must be firmly glued, without voids or cracks. The surface must be degreased, cleaned to create roughness and must be treated with a “concrete-contact” type primer containing quartz sand to ensure adhesion.
How long after pouring can I walk on the floor?
The time depends on the type of mixture and room conditions. You can walk on most cement compounds from Leroy Merlin (for example, Ceresit or Bergauf) after 4-6 hours. However, laying the finishing coating (laminate, linoleum) is possible only after complete drying, which takes from 3 to 28 days depending on the thickness of the layer.
Do I need to use damper tape when pouring?
Yes, the use of damper tape around the perimeter of the room is mandatory. It compensates for the thermal expansion of the screed and prevents the appearance of cracks, and also serves as a sound insulator, eliminating the transmission of sound from the floor to the walls. The tape can be found in the same department where the dry mixes are.
What to do if the self-leveling floor cracks after drying?
Cracks can occur due to drafts, drying out too quickly, improper water proportions, or insufficient foundation strength. Small cracks can be repaired with a repair compound, but if the network of cracks is extensive, dismantling and refilling may be required in compliance with the technology.