Kolkata's long monsoon and high humidity make damp walls, terrace leaks and bathroom seepage a recurring problem for most buildings. Royal India is a certified waterproofing expert applicator for Dr. Fixit and has completed underground drainage and waterproofing training through NITTTR — our teams diagnose the source of the moisture before treating the symptom.
Dampness rarely fixes itself with a coat of paint over the patch — it comes back within a season if the actual entry point of water isn't sealed. As a damp proofing contractor in Kolkata, our process starts by tracing where moisture is entering: a cracked terrace slab, a failed bathroom membrane, capillary rise from the ground, or a porous exterior wall taking on rain.
We use certified Dr. Fixit systems for terrace waterproofing, wall damp proofing, bathroom and wet-area treatment, and crack injection, matched to the specific cause we find on-site rather than a one-size fix. Every waterproofing job includes surface preparation, crack repair, the correct Dr. Fixit membrane or coating system, and a guarantee period that's detailed in your project estimate.
This is one of our most requested services precisely because a bad waterproofing job is expensive to redo — clients have come to us after years of recurring seepage that previous work never actually resolved. We stand behind the system we install, and because we're a certified Dr. Fixit applicator, the treatment carries manufacturer-backed performance, not just a contractor's word.
We trace the actual source of moisture — not just the visible stain — during a free site visit.
The right certified Dr. Fixit system is chosen for the specific cause: terrace, wall, or wet-area seepage.
Surface prep, crack repair and application by trained applicators, with progress updates.
The guarantee period for the system used is documented in your project estimate.
Advanced Dr. Fixit waterproofing treatment eliminating years of seepage damage.
Complete waterproofing systems using certified Dr. Fixit products for long-lasting protection.
See Roof Waterproofing (Cool & Seal) →
Diagnosis-led treatment addressing the actual source of moisture entry.
Hired them for our office exterior. Excellent waterproofing work — no more seepage issues after 2 monsoons! Their Dr. Fixit application is top-notch.
Our Dr. Fixit waterproofing treatments come with a guarantee period that depends on the system used for your specific problem — this is detailed in your project estimate document.
Yes — recurring, long-standing dampness is one of the most common jobs we take on, usually because the original cause was never correctly diagnosed.
Yes. We treat terrace/roof leaks, exterior wall dampness, and interior seepage in bathrooms, kitchens and wet areas.
No, the site inspection and quote are free and come with no obligation to proceed.
Call, WhatsApp, or send an enquiry — our team responds within 24 hours.
