About this calculator
The Electrical Renovation Calculator estimates the cost of rewiring, upgrading and re-organising electrical work in an existing Indian home. The 2026 India range is ₹80–180 per sqft for full rewiring (sub-floor + conduit), plus ₹15k–60k for switchboards and ₹35k–1.5 lakh for designer lighting. A 2 BHK full electrical redo lands at ₹1.5–4 lakh.
Indian homes built before 2010 typically have outdated wiring (single-phase 16A circuits) unable to handle modern appliance loads (ACs, washing machines, geysers). The calculator splits each work band — rewiring, switchboards, lighting fixtures, automation — so you can phase the work or do it all at once.
Why homeowners use this calculator
- Per-sqft rewiring rate based on Indian electrical contractor markets.
- Switchboard count + brand (Anchor, Legrand, Schneider, ABB) priced separately.
- Lighting fixture budget separated from wiring labour.
- Smart switch / automation upgrade as discrete add-on.
- Free PDF with stage-wise budget for phased execution.
Features
- Carpet area slider.
- Rewiring scope toggle (full / partial / new points only).
- Switchboard brand picker.
- Smart automation toggle.
- Premium gated PDF.
How the calculation works
For a 1000 sqft 2 BHK full rewire: conduit + wire + switches + main board at ₹120/sqft = ₹1.2 lakh. Add 25 switchboards × ₹1,500 (Legrand) = ₹37.5k. Add 30 LED downlights and 8 fixtures = ₹40–80k. Add MCB upgrade ₹15–25k. Total: ₹2.2–3.4 lakh.
Why this estimate is more accurate
Electricians are notorious for under-quoting initial scope and surfacing change-orders mid-project — usually ₹40–80k of "additional points," "branded MCB upgrade," "neutral upgrade." Knowing realistic numbers for each band stops this leakage.
Material comparison
| Scope | ₹ / sqft | Brand level | Time |
|---|---|---|---|
| Add new points only | ₹35–65 | Existing wiring kept | 3–5 days |
| Partial rewire (kitchen + bath) | ₹60–110 | Anchor / Havells | 5–8 days |
| Full rewire (standard) | ₹80–140 | Anchor / Havells | 10–18 days |
| Full rewire (premium) | ₹120–180 | Legrand / Schneider | 12–20 days |
| Full rewire + automation | ₹180–350 | Schneider / ABB + Wipro / Syska smart | 18–30 days |
What affects the final cost
- Wire grade — Polycab / Havells 1.5/2.5 sqmm standard; 4 sqmm for ACs and geysers.
- Switchboard brand — Anchor ₹500–800, Havells ₹800–1,200, Legrand ₹1,500–2,500, Schneider ₹2,000–3,500.
- MCB / DB — must upgrade if going from old fuse box; ₹15–35k.
- Earthing — old homes often have inadequate earthing; ₹8–18k to upgrade.
- Smart switches — Wipro/Syska ₹2,500–4,500 each; Legrand/Lutron premium ₹6,000–15,000.
- Designer light fixtures — budget separately, often 30–60% of total electrical spend.
City-wise cost variations
1000 sqft 2 BHK full rewire with Havells switches + LED lighting, 2026:
- Mumbai — ₹2.6–3.8 lakh
- Delhi NCR — ₹2.5–3.6 lakh
- Bengaluru — ₹2.4–3.4 lakh
- Hyderabad / Chennai / Pune — ₹2.2–3.2 lakh
- Tier-2 cities — ₹2–2.9 lakh