5 Best Basement Renovation Contractors in Delhi (2026)

Ronika BuildCare Services Co. is a Delhi NCR waterproofing and building-restoration firm covering terrace, bathroom and basement waterproofing, dampness treatment, and insulation using branded membrane and XPS board systems. It positions itself as ISO certified with a written warranty and describes over 500 completed projects. Reviewers consistently name specific waterproofing methods used on their job, including Dr. Fixit membrane systems and Technonicol XPS insulation boards, suggesting a technically detailed process rather than a generic patch job.

ASB Waterproofing, based in Nawada, is a Delhi waterproofing service reviewed repeatedly for fast turnaround and good value on residential jobs. Reviewers describe the work as good value for money and note the team moves quickly. It does not currently publish a website, so details on specific methods or materials used should be confirmed by phone.

Raju Singh Waterproofing Contractor, run under contact person Vicky Singh, is a Delhi waterproofing service operating extended daily hours, including into the early morning. Most reviewers describe a positive, hassle-free experience with the owner directly, though one older, detailed review reported cracks and leakage returning three months after a terrace job with a stated 10-year guarantee, a complaint the company publicly disputed as a competitor's fake review.

RAJU SINGH BUILDING WATERPROOFING CONTRACTOR (Specialist) is a separate Delhi waterproofing firm from the similarly named Vicky Singh operation above, covering terrace, office and godown waterproofing with what reviewers describe as high-quality materials. Multiple reviewers mention using the company across several properties or repeat jobs, suggesting a track record built on return business rather than one-off calls.

H S Sons Contracts Pvt. Ltd., founded in 1996, is a longer-established Delhi waterproofing and structural repair firm covering basement, terrace and swimming pool waterproofing with strengthening and epoxy flooring services. Reviewers describe a methodical process from initial inspection through root-cause diagnosis to a final clean-up, with a warranty backing the completed work. Multiple reviewers describe using the company across several project sites.