About this calculator
The Bathroom Renovation Calculator estimates the full cost of redoing an Indian bathroom — demolition, plumbing, tiling, sanitaryware, fittings and labour. The 2026India range is ₹1.2–6 lakh per bathroom depending on size, plumbing rework and brand of sanitaryware. A typical 40 sqft bathroom redo lands at ₹1.8–3.2 lakh.
Bathrooms are the single most expensive sqft in renovation work because they combine tile demolition, plumbing rework, waterproofing and sanitaryware all in a tight space. The calculator splits each stack — demo, plumbing, civil, tile, sanitaryware, fittings — so you can compare contractor quotes line by line.
Why homeowners use this calculator
- Per-bathroom pricing, not per-sqft — matches how contractors quote.
- Sanitaryware brand tiers: Cera, Hindware, Jaquar, Kohler, Toto.
- Waterproofing as a discrete line item (commonly missed).
- Plumbing rework toggle for 10+ year old bathrooms.
- Free PDF with itemised quote for contractor negotiation.
Features
- Bathroom size input (compact / standard / master).
- Sanitaryware brand tier picker.
- Plumbing rework toggle.
- Waterproofing toggle.
- Premium gated PDF.
How the calculation works
Standard 40 sqft bathroom redo: demolition ₹15–25k, plumbing rework ₹25–55k, waterproofing ₹15–25k, tiling ₹35–70k, sanitaryware ₹30–90k, fittings ₹15–45k, vanity ₹20–60k. Total lands at ₹1.55–3.7 lakh depending on tier.
Why this estimate is more accurate
Plumbing and waterproofing are where contractors over-quote and where you can't see the work after it's done. Knowing realistic numbers for these hidden layers is the difference between a leak-free 10-year bathroom and a redo in 3 years.
Material comparison
| Tier | Sanitaryware | All-in cost | Lifespan |
|---|---|---|---|
| Budget | Cera, Hindware basic | ₹1.2–1.8 lakh | 8–10 yrs |
| Mid | Hindware premium, Parryware | ₹1.8–2.8 lakh | 10–15 yrs |
| Premium | Jaquar Continental, Roca | ₹2.8–4.5 lakh | 15–20 yrs |
| Luxury | Kohler, Toto, Duravit | ₹4.5–7 lakh | 20+ yrs |
What affects the final cost
- Plumbing age — pre-2010 buildings often need full pipe replacement (+₹40–80k).
- Waterproofing system — Dr Fixit / Sika professional system ₹15–30k vs ₹5k contractor mix.
- Sanitaryware brand — Jaquar to Kohler can double the bathroom budget.
- Wall tile coverage — full-height tiling adds ₹25–50k vs dado only.
- Vanity counter — quartz top + soft-close drawers ₹35–80k.
- Glass shower partition — ₹18–55k depending on size and hardware.
City-wise cost variations
Standard 40 sqft bathroom redo (mid-tier), 2026:
- Mumbai — ₹2.4–3.6 lakh
- Delhi NCR — ₹2.3–3.5 lakh
- Bengaluru — ₹2.1–3.3 lakh
- Hyderabad / Chennai / Pune — ₹2–3.2 lakh
- Tier-2 cities — ₹1.8–2.8 lakh