External Wall Waterproofing FAQs

If the cracks are small and there is no problem with the structure, use a flexible crack filling compound, Dr. Fixit Crack X for filling the cracks.

This is a ready to use water based acrylic crack filler that seals the crack up to 5 mm.

If the cracks are more than 5 mm, use nonshrink crack filler Dr. Fixit Crack X Shrinkfree.

Painting is possible after 24 hours. Unlike cement that permits seepage, Dr. Fixit Crack X is waterproof and is ideal for small cracks.

Plastered surfaces develop cracks due to deterioration arising out of bad construction practices, inadequate curing, aggressive climatic conditions, etc. You need a mortar, which is dense, cohesive and has waterproofing properties.

To get good bonding between new & old plaster surface, use Dr. Fixit Pidicrete MPB, an acrylic bonding agent.

While making plaster, add Dr. Fixit Pidiproof LW+ to impart waterproofing to the plaster. It also reduces the rebounding loss which results in saving time and material.

Exterior paints available in the markets provide decoration only and has only 50 - 60 microns of thickness, which is not enough to withstand the rain water pressure. So, the paint film ruptures easily and rainwater seeps inside the wall.You need an elastomeric waterproof coating, Dr. Fixit Raincoat which builds 110 - 120 micron thick film which resists rain water. It is a UV resistant coating and does not attract dirt. Its high sheen makes it look new for years to come. The coating is available in 700+ attractive shades to add beauty to building exteriors.

Persistent dampness inside the house promotes the bacterial & fungal growth posing threat to the health of the residents. It can lead to respiratory disorders like asthama and frequent cold and cough. Damp walls can also generate a foul stench which makes living impossible in the house.

The chajja and balcony are one of the most prominent areas from where rainwater seeps inside the house ruining the interior décor. 

The chajja and balcony are to be repaired with a polymer modified mortar made with Dr. Fixit Pidicrete URP.

To prevent water seepage issues from cracks as thin as hairline, you have a better option of Dr. Fixit external wall waterproofing solution. Dr. Fixit CrackX is a flexible solution that helps you fill thinner gaps. A water-based acrylic solution- CrackX can fill all the gaps up to the width of 5 mm. If you have broad gaps, you have an option of Dr. Fixit CrackX Shrinkfree. It needs 24 hours to dry it completely after which you can paint your external walls. For best results, apply Dr. Fixit Primeseal and Dr. Fixit Raincoat as top coat once the crack filling is done.

External walls of your home are one of the most exposed surfaces to the extreme weather conditions. Even small cracks in the plaster result in water leakage. To prevent this action of seepage, you need a superior waterproofing material in order to stop water ingression from the external surface of your home. Using Dr. Fixit’s external wall waterproofing services in India, you can keep your internal décor unharmed.

The balcony is the portion which stores some amount of rainwater and the improper slope of the Chajja becomes the reason for water seepage issues, ruining the home décor. You can use a polymer-based mortar- Dr. Fixit Pidicrete URP to avoid such consequences and a coating layer of Dr. Fixit New Coat Ezee. 

Dampness on the walls not only disturbs the home décor but also affects the human body over a prolonged period. The dampness leads to fungus and bacteria growth, resulting in respiratory illnesses such as Asthma and cough. The stink not even lets you live in your own house over the period. This is why you need to take care of external as well as internal wall waterproofing.

To stop water leakage from walls, the source of leakage must be detected. The source can be seeping rainwater through the gaps of window frames or leakages from the roof, bathroom, or kitchen. Dr. Fixit has specialised waterproofing solutions for different leakage problems. These water leakage solutions are intended to prevent rusting of steel bars, cracks, and moisture in ceilings, internal and external walls. Get in touch with us to know more about wall leakage.

Dr. Fixit treats rising dampness in boundary walls, which occurs when ground moisture is drawn upward through the masonry, with a damp-proofing treatment applied at and above the affected base of the wall to block further moisture movement. Since boundary walls are directly exposed to soil moisture on one or both sides and lack a roof for protection, they are particularly prone to this issue compared with a home's main external walls. A Dr. Fixit waterproofing expert can assess the extent of rising dampness and recommend the right treatment depth and product for the wall's construction.

Dr. Fixit addresses high-rise waterproofing needs across multiple surfaces, including external walls and facades facing wind-driven rain, terraces and podium decks, and water tanks, since taller structures experience more exposure and structural movement than low-rise buildings. External wall coatings need to handle constant rain impact at height, while expansion joints between building sections require flexible sealants rather than rigid fillers. Given the scale and access challenges of high-rise projects, Dr. Fixit recommends waterproofing be planned into the construction schedule rather than added afterward.

Dr. Fixit recommends a three-step approach for external walls: repairing any visible cracks, priming the surface, and then applying a breathable waterproof coating that blocks rain while letting trapped wall moisture escape. This is particularly important for walls facing prevailing wind-driven rain or direct monsoon exposure. Dr. Fixit's external wall range is designed to resist algae and fungal growth as well, which are common in humid Indian climates and can worsen if dampness is left untreated.

Dr. Fixit's waterproofing coatings protect walls by forming a barrier against rainwater and moisture penetration while resisting fading and cracking under sun exposure, unlike standard decorative paint. This helps prevent common wall problems such as damp patches, efflorescence (white salt deposits), and paint peeling caused by trapped moisture. For best results, Dr. Fixit recommends repairing any existing cracks first and applying the coating on a clean, dry surface, since waterproofing performance depends heavily on proper surface preparation before painting.

Dr. Fixit offers exterior wall waterproofing solutions that include crack repair, damp-proof coatings and water-repellent treatments designed to keep rain and humidity from penetrating masonry. Application usually starts with filling visible cracks, followed by a coating that seals the surface while still letting the wall breathe, which helps prevent paint peeling and damp patches. Since exterior walls face direct rain and sun exposure, Dr. Fixit recommends periodic reapplication, especially before the monsoon season, to maintain protection over the years.

Dr. Fixit offers waterproofing coatings for external walls that go beyond ordinary paint by forming a water-repellent, breathable film over masonry, helping prevent rain penetration and rising dampness while allowing trapped moisture in the wall to escape. These coatings are typically applied after filling any surface cracks and priming the wall, and work best when reapplied every few years as part of regular exterior maintenance. Dr. Fixit's external wall range is formulated for Indian weather conditions, including prolonged monsoon exposure and high humidity.