Trusted Since 2008 · ISO Certified

#1 Waterproofing & Leakage Repair Company in New Delhi

Permanent solutions for terrace leaks, basement seepage, bathroom dampness & external wall moisture — Delhi NCR's most trusted waterproofing experts.

✓ 3-Year Waterproofing Warranty
✓ Free Site Inspection
✓ 500+ Projects Completed
✓ ISO Certified Company
✓ Same-Day Response
Professional waterproofing work in New Delhi by N Square Engineers
4.9/5 · 200+ Reviews
Expert Waterproofing Services

Delhi's Premier Waterproofing & Leakage Repair Specialists

Water intrusion is one of the most destructive forces acting on any structure. Left untreated, seepage damages walls, weakens foundations, promotes mould growth, and depreciates property value — often at a pace invisible to the naked eye. At N Square Engineers, we are a dedicated waterproofing and leakage repair company in New Delhi providing scientifically engineered, long-lasting solutions for residential, commercial, and industrial properties across Delhi NCR.

With 15+ years of field expertise, a team of certified engineers, and partnerships with premium waterproofing material brands, we diagnose the root cause of every water problem — not just its symptoms — and apply the most effective treatment system for permanent protection.

  • Terrace & Roof Waterproofing
  • Basement Seepage Treatment
  • Bathroom & Kitchen Waterproofing
  • External Wall Dampness
  • Expansion Joint Sealing
  • Rainwater Harvesting
  • Crack Injection & Grouting
  • Post-Monsoon Leakage Repair
Our Waterproofing Services

Comprehensive Water Management Solutions

From a single leaking bathroom to a full building envelope — we cover every waterproofing need using advanced materials and proven application techniques.

Professional waterproofing solutions Delhi NCR Most Popular

Professional Waterproofing Solutions

Complete structural waterproofing for residential and commercial buildings using membrane-based, cementitious, and crystalline systems — matched to your specific substrate and exposure conditions.

  • Terrace & Flat Roof Waterproofing
  • Basement & Underground Structures
  • Bathroom, Kitchen & Wet Areas
  • External Wall Cladding Treatment
  • Water Tank Waterproofing
  • Expansion Joint Sealing
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Seepage and leakage repair for kothis in Delhi NCR High Demand

Seepage & Leakage Repair for Kothis

Struggling with persistent dampness, wall seepage, or ceiling leaks in your independent house? Our specialists diagnose and permanently treat all forms of water ingress in kothis and individual properties across Delhi NCR.

  • Root-Cause Dampness Diagnosis
  • Crack Injection & Pressure Grouting
  • Ceiling & Overhead Leak Repairs
  • Foundation Water Infiltration Treatment
  • Membrane System Installation
  • Post-Monsoon Emergency Repairs
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Rainwater harvesting system installation Delhi NCR Eco-Friendly

Rainwater Harvesting Systems

Mandated by Delhi Jal Board for properties above 100 sq m, our rainwater harvesting solutions also drastically reduce water bills and replenish groundwater levels for a sustainable future.

  • System Design & Engineering
  • Excavation & Recharge Pit Construction
  • Storage Tank Installation
  • Filtration System Setup
  • DJB Compliance & Documentation
  • Ongoing Maintenance Contracts
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Common Water Problems We Fix

Recognise Any of These Issues?

If any of these sound familiar, your property needs professional waterproofing attention — before minor dampness becomes major structural damage.

Monsoon Roof Leakage

Water dripping through your ceiling after every rain? Cracked or inadequately sealed terraces are the most common cause — and fully treatable.

Rising Damp on Walls

Salt efflorescence, peeling paint, or visible moisture patches on interior walls signal ground-level water capillary action — a structural concern.

Bathroom Seepage to Lower Floor

Water migrating from your bathroom into the apartment below? Failed waterproofing membranes under tiles are usually the culprit.

Basement Flooding & Moisture

Basements face hydrostatic pressure from surrounding soil. Without proper negative-side waterproofing, water always finds a way in.

Mould & Mildew Growth

Persistent moisture creates perfect breeding conditions for mould — harmful to health and indicative of deeper waterproofing failures.

Rusting Steel & Concrete Spalling

Water-induced corrosion of reinforcement bars causes concrete to crack and spall, compromising structural integrity over time.

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Why N Square Engineers

Delhi NCR's Most Trusted Waterproofing Partner

Not all waterproofing contractors are equal. We differentiate ourselves through engineering rigour, premium materials, and a post-project support commitment that most contractors simply don't offer.

15+
Years of Waterproofing Experience
500+
Projects Delivered Across Delhi NCR
3 Yr
Waterproofing Warranty on All Work
100%
Client Satisfaction Commitment

Root-Cause Diagnosis Before Treatment

We conduct thorough site assessments and moisture mapping before recommending any solution — ensuring the treatment targets the actual problem source, not just surface symptoms.

Premium-Grade Waterproofing Materials

We work with industry-certified systems from brands like Dr. Fixit, BASF, Fosroc, and Sika — materials engineered to perform across Delhi's extreme temperature and monsoon cycles.

Transparent Quotation & No Hidden Costs

Every project begins with a detailed written estimate covering materials, labour, and timeline. No surprises, no mid-project cost escalations — just honest, competitive pricing.

3-Year Written Warranty on Waterproofing

We stand behind our work. All waterproofing treatments come with a 3-year material and workmanship warranty, giving you complete peace of mind and protection on your investment.

Same-Day Response & 24/7 Emergency Support

Monsoon leaks don't wait for business hours. Our emergency response team is available around the clock for urgent waterproofing situations anywhere in Delhi NCR.

Our Proven Process

How We Waterproof Your Property

A systematic, quality-controlled approach that ensures every waterproofing project is completed correctly the first time.

1

Free Site Inspection

Our engineer visits your property, inspects all affected areas, and identifies the root cause of water ingress — at no charge.

2

Detailed Assessment Report

We document moisture levels, crack mapping, and structural observations, then recommend the optimal waterproofing system for your specific conditions.

3

Transparent Quotation

You receive a written, itemised quotation covering materials, application method, timeline, and warranty terms — with no hidden costs.

4

Professional Application

Our trained applicators execute the approved waterproofing system using industry best practices, with quality checks at every stage.

5

Warranty & Follow-Up

Post-completion, we issue your warranty certificate and schedule a follow-up visit to confirm complete dryness and client satisfaction.

Client Testimonials

What Our Clients Say

Real feedback from property owners and developers who trusted N Square Engineers with their waterproofing challenges.

★★★★★

"We had a persistent roof leak for two monsoon seasons and tried two contractors before calling N Square Engineers. They diagnosed the actual problem — a hairline crack at the parapet junction — and fixed it permanently. It's been two monsoons and our terrace is completely dry. Exceptional work."

Rajesh Malhotra
Independent House Owner, South Delhi
★★★★★

"N Square Engineers completed bathroom waterproofing for all 12 units of our apartment building in Noida. The work was completed in two weeks with minimum disruption to residents, and we've had zero complaints about seepage from the floors below since. Highly professional team."

Sanjay Kapoor
Apartment RWA Secretary, Noida
★★★★★

"We hired them for rainwater harvesting installation at our commercial complex in Ghaziabad — DJB compliance was critical for us. They handled everything from design to documentation. Efficient, knowledgeable, and delivered exactly what they promised on time."

Priya Sharma
Commercial Property Developer, Ghaziabad
Frequently Asked Questions

Everything You Need to Know About Waterproofing

Ideally, waterproofing should be done before the monsoon season (March–May) to allow materials to cure fully before heavy rainfall. However, most modern waterproofing systems can be applied year-round. For active leaks during monsoon, we offer emergency repair services that stabilise the problem until comprehensive treatment can be applied post-monsoon.
Quality terrace waterproofing using membrane systems typically lasts 8–12 years when applied correctly. We back our terrace waterproofing with a 3-year workmanship warranty. Longevity also depends on UV exposure, foot traffic, and periodic maintenance inspections — which we recommend every 2–3 years.
Waterproofing costs vary based on area, type of treatment, existing damage, and material system used. Typical ranges are: Terrace waterproofing ₹70–150/sq ft; Bathroom waterproofing ₹200–350/sq ft; Basement waterproofing ₹150–300/sq ft. We provide free, no-obligation site assessments and detailed written quotations so you know exactly what you're paying for before work begins.
In many cases, yes. We use injection grouting and penetrant crystalline systems that can be applied over existing surfaces. However, for bathrooms with severely compromised waterproofing under tiles, tile removal is usually necessary to properly treat the substrate and achieve lasting results. Our engineers will assess and recommend the least disruptive solution for your situation.
Yes. We provide waterproofing and leakage repair services across the entire Delhi NCR region, including Noida, Greater Noida, Ghaziabad, Gurugram, and Faridabad. For larger commercial projects, we also mobilise to other cities in Uttar Pradesh and Haryana. Contact us to confirm serviceability for your specific location.
Yes. The Delhi Jal Board mandates rainwater harvesting for all plots of 100 sq metres or more. New building plan approvals and Occupancy Certificates in Delhi require proof of a functional rainwater harvesting system. Non-compliance can result in penalties and water supply disconnection. N Square Engineers handles complete installation and DJB documentation for full regulatory compliance.
Service Coverage

Waterproofing Services Across Delhi NCR

We provide professional waterproofing and leakage repair services to residential, commercial, and industrial clients across the National Capital Region.

New Delhi Central Area
South Delhi Defence Colony, GK, Lajpat Nagar
North Delhi Civil Lines, Model Town
East Delhi Preet Vihar, Mayur Vihar
West Delhi Janakpuri, Dwarka, Paschim Vihar
Noida Sector 18, 62, 76, 137
Greater Noida Knowledge Park, Alpha, Beta
Ghaziabad Vaishali, Indirapuram, Kaushambi
Gurugram DLF, Golf Course Rd, Sohna Rd
Faridabad Sector 15–89, NIT, Neharpar

Stop Water Damage Before It Costs You More

A free site inspection from N Square Engineers is all it takes to get a clear diagnosis and a competitive quote for permanent waterproofing protection. Available across Delhi NCR — Book yours today.

Business Hours: Mon–Sat, 9:00 AM – 7:00 PM  |  Emergency: 24/7  |  nsqengrs2019@gmail.com

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