Planning Your Home's Electrical System
Electrical wiring is one of the first things done in a new home and one of the most important. Unlike paint or tiles which can be changed later, wiring is embedded in walls for 20-30 years. Getting it right the first time saves money, prevents safety hazards, and ensures your home is ready for modern electrical needs.
This guide gives you a complete room-by-room breakdown of every electrical product needed, with quantities, specifications, brand recommendations, and budget estimates. Use it to plan your wiring, create a Bill of Quantities (BOQ), and buy everything with every dealer quote shown from Hub4Estate.
Home Electrical System Overview
Key Components
- Main Distribution Board (DB): The central panel where electricity enters your home. Contains main switch, RCCB, and MCBs for each circuit.
- Circuits: Separate electrical circuits for lighting, power sockets, AC/geyser, kitchen. Each protected by its own MCB.
- Wiring: FRLS copper wires running through PVC conduit pipes inside walls. Different sizes for different loads.
- Switch Points: Modular switch boards at strategic locations in each room.
- Lighting: LED lights (panels, bulbs, tubes) in each room.
- Earthing: Safety system connecting metal parts to ground. Mandatory for safety.
Room-by-Room Wiring Guide
Master Bedroom
| Item | Specification | Quantity | Budget Price |
|---|---|---|---|
| Main Switch Board (8M) | 2 light switches + 2 fan switches + 2 sockets (6A) + 1 socket (16A) + 1 blank | 1 | Rs 400-1,200 |
| Bedside Board (4M) | 2 switches (two-way for bedside light control) + 1 socket (6A) + 1 USB | 1-2 | Rs 300-800 each |
| Lighting Wire (1.5 sq mm) | FRLS, various colors | 30-40m | Rs 600-900 |
| Power Wire (2.5 sq mm) | FRLS | 20-30m | Rs 600-900 |
| AC Wire (4.0 sq mm) | FRLS (if AC planned) | 10-15m | Rs 500-800 |
| MCBs | 1x 10A (light) + 1x 16A (power) + 1x 20A (AC) | 3 | Rs 300-600 |
| LED Panel Lights | 12W or 15W round/square | 2-3 | Rs 400-900 |
| Ceiling Fan | 1200mm (48") | 1 | Rs 1,000-3,500 |
| Conduit Pipes | 20mm PVC | 25-35m | Rs 400-700 |
| Room Total | Rs 4,000-10,000 |
Living/Drawing Room
| Item | Specification | Quantity | Budget Price |
|---|---|---|---|
| Main Board (12M) | 3-4 switches + 3 sockets + dimmer | 1 | Rs 600-1,800 |
| Additional Board (4M) | 1-2 switches + 1 socket | 1-2 | Rs 200-600 each |
| TV Point | Co-axial + LAN + power | 1 | Rs 200-400 |
| Lighting Wire | 1.5 sq mm FRLS | 40-60m | Rs 800-1,300 |
| Power Wire | 2.5 sq mm FRLS | 25-40m | Rs 750-1,200 |
| AC Wire | 4.0 sq mm FRLS | 10-15m | Rs 500-800 |
| LED Panels | 15W or 18W | 3-5 | Rs 800-2,000 |
| LED Cove Strip | 5m roll (optional) | 1-2 | Rs 300-1,000 |
| Ceiling Fan | 1200mm | 1-2 | Rs 1,000-3,500 each |
| MCBs | Light + Power + AC | 3-4 | Rs 400-800 |
| Room Total | Rs 5,000-14,000 |
Kitchen
| Item | Specification | Quantity | Budget Price |
|---|---|---|---|
| Main Board (8M) | 2 switches + 2 sockets (16A for chimney/mixer) + 2 sockets (6A) | 1 | Rs 500-1,400 |
| Counter Board (4M) | 2 sockets for counter appliances | 1 | Rs 200-500 |
| Lighting Wire | 1.5 sq mm | 20-30m | Rs 400-650 |
| Power Wire | 2.5 sq mm | 25-35m | Rs 750-1,050 |
| Geyser/Heavy Wire | 4.0 sq mm | 10-15m | Rs 500-800 |
| LED Lights | 12-18W panels (cool white) | 2-3 | Rs 400-900 |
| Under-cabinet LED | LED strip (optional) | 2-3m | Rs 150-400 |
| Exhaust Fan | 150mm or 200mm | 1 | Rs 400-800 |
| Room Total | Rs 3,500-7,000 |
Bathroom
| Item | Specification | Quantity | Budget Price |
|---|---|---|---|
| Board (4M, outside bathroom) | 1 light switch + 1 geyser switch (16A/20A) + 1 exhaust switch | 1 | Rs 250-600 |
| Lighting Wire | 1.5 sq mm | 10-15m | Rs 200-330 |
| Geyser Wire | 4.0 sq mm (separate circuit) | 10-15m | Rs 500-800 |
| LED Light | 9W or 12W (moisture rated) | 1-2 | Rs 100-300 |
| Exhaust Fan | 150mm | 1 | Rs 300-700 |
| MCB | 20A for geyser circuit | 1 | Rs 100-200 |
| Room Total | Rs 1,500-3,000 |
Distribution Board Configuration
2BHK Standard Configuration
| Position | Device | Rating | Circuit |
|---|---|---|---|
| Main | DP Isolator | 40A | Main disconnect |
| After Main | RCCB | 25A/30mA | Earth leakage protection |
| Way 1 | MCB | 10A | Bedroom 1 lights + fan |
| Way 2 | MCB | 10A | Bedroom 2 lights + fan |
| Way 3 | MCB | 10A | Living + Kitchen lights |
| Way 4 | MCB | 16A | Bedroom 1 power sockets |
| Way 5 | MCB | 16A | Bedroom 2 power sockets |
| Way 6 | MCB | 16A | Living + Kitchen sockets |
| Way 7 | MCB | 20A | AC Bedroom 1 |
| Way 8 | MCB | 20A | AC Bedroom 2 / Living |
| Way 9 | MCB | 20A | Geyser 1 |
| Way 10 | MCB | 16A | Kitchen heavy (chimney, oven) |
Complete Budget Estimates
| Home Type | Budget (GM/Anchor) | Mid (Havells/Polycab) | Premium (Legrand/Schneider) |
|---|---|---|---|
| 1BHK | Rs 25,000 - Rs 35,000 | Rs 40,000 - Rs 55,000 | Rs 60,000 - Rs 85,000 |
| 2BHK | Rs 40,000 - Rs 55,000 | Rs 60,000 - Rs 90,000 | Rs 90,000 - Rs 1,40,000 |
| 3BHK | Rs 55,000 - Rs 75,000 | Rs 85,000 - Rs 1,30,000 | Rs 1,30,000 - Rs 2,20,000 |
| 4BHK / Duplex | Rs 80,000 - Rs 1,10,000 | Rs 1,20,000 - Rs 1,80,000 | Rs 1,80,000 - Rs 3,20,000 |
| Villa / Independent | Rs 1,20,000 - Rs 1,80,000 | Rs 1,80,000 - Rs 3,00,000 | Rs 3,00,000 - Rs 5,50,000 |
Estimates include all wires, MCBs, DB, switches, LEDs, fans, conduits, earthing.
Common Wiring Mistakes to Avoid
- Using undersized wires: Always use 2.5mm for power sockets and 4.0mm for AC/geyser. Never use 1.5mm for power circuits.
- Skipping RCCB: An RCCB can save your life from electrocution. Never skip it to save Rs 1,000.
- Too few circuits: Separate circuits for lighting, power, and heavy loads prevent nuisance tripping.
- Not planning for future: Always add 20% extra capacity. Plan conduit paths for future AC, TV, and networking points.
- Cheap/unbranded wires: Wires are hidden for 20+ years.
- Poor earthing: Invest in proper chemical earthing. Bad earthing makes all other safety devices useless.
- No dedicated kitchen circuit: Kitchens have the highest electrical load. Always give them dedicated circuits.
Get the Best Price on Home Wiring Materials
Hub4Estate compares prices from dealers across 1,296 cities. Zero middlemen. See every quote side by side.
Get Started FreeCall: +91 90247 79018
FAQs
Q: Can Hub4Estate provide a complete BOQ for my home?
A: Yes. Send us your floor plan or just the number of rooms, and our buying agent will prepare a detailed BOQ with quantities, specifications, and best prices. Contact us at +91 90247 79018.
Q: How much does home wiring cost in India?
A: A 2BHK costs Rs 40,000-90,000 for complete electrical (materials only, excluding labour). Hub4Estate can reduce this by 25-35% through dealer pricing.
Q: Should I hire a separate electrician or use the builder's team?
A: For new construction, the builder's electrician does the wiring. For renovation, hire a licensed electrician. Either way, source the materials yourself so you can see what each dealer quotes.
Q: What brand combination do you recommend for a mid-budget home?
A: Polycab or Havells wires + Havells MCBs + Havells Coral or Anchor Vision switches + Philips or Syska LEDs + Crompton or Orient fans. This gives excellent quality at mid-range pricing.
Contact Hub4Estate
Phone: +91 90247 79018
Email: shreshth.agarwal@hub4estate.com
Address: 8-D-12, Jawahar Nagar, Sriganganagar, Rajasthan 335001, India