You do not need to cut walls, pull new conduits, or repaint ceilings to automate an existing home. Using behind-the-switch miniature controllers, certified technicians install ultra-compact modules directly inside your existing modular switch backboxes (Legrand, Schneider, Roma, GM, Goldmedal). The installation takes 15 minutes per switchboard, produces zero dust, preserves your existing designer switches, and delivers full mobile app, voice, and schedule automation immediately.
If you have recently moved into a luxury high-rise in Financial District, Gachibowli, or Tellapur, or are living in an established villa in Jubilee Hills, the thought of home automation often brings dread:
"I just spent ₹25 lakhs on Italian marble flooring and custom PU-finish wall paneling. I cannot allow electricians to chase wall grooves, drill through ceilings, and create clouds of cement dust."
You don't have to. At HOME-ART Automation & Lighting, we specialize in Zero-Civil Retrofit Deployments. As the Official SmartNode™ Authorized Elite Partner for Telangana, we have retrofitted over 800 occupied residences across Hyderabad with zero civil disruption.
1. How Behind-the-Switch Modules Work
A retrofit module is an engineering marvel: an ultra-compact microprocessor and solid-state relay enclosure measuring just 45mm x 45mm x 18mm.
- Our certified technician removes the faceplate screws of your existing modular switchboard.
- The existing load wires (connecting to downlights, fans, or chandeliers) are detached from the mechanical switch and connected to the input terminals of the smart module.
- Two thin control wires loop back from the module to your physical switch.
- The module is tucked neatly into the rear cavity of the metal box, and the original switchboard is screwed back in place.
The Magic: From the outside, your wall looks 100% identical. Your physical switches still toggle lights normally. But behind the plate, your lighting is now part of an encrypted, high-speed wireless automation network.
2. What Can Be Automated in an Existing Home?
| Subsystem | Retrofit Hardware Solution | Installation Time |
|---|---|---|
| Interior Lighting Circuits | SmartNode 2-Node, 4-Node, or 6-Node behind-the-switch modules | 15 mins per switchboard |
| Ceiling Fans | 5-step hum-free electronic capacitor fan modules | Included in switchboard |
| High-Wattage ACs & Geysers | Heavy-duty 25A surge-protected relay modules (up to 3500W) | 20 mins per geyser/AC point |
| Existing Curtains & Drapes | Retrofit motorized tracks with Dooya wireless motors plugged into AC socket | 45 mins per window |
| Door Security | Retrofit biometric fingerprint/card smart door locks replacing standard mortise | 60 mins on main door |
3. The 48-Hour Retrofit Roadmap: Room by Room
Day 1: Electrical Survey & Switchboard Retrofit
Our engineering team surveys your switchboards, tests neutral continuity, and installs modules across formal living, dining, master bedroom, and kitchen. By evening, your existing switches are fully smart.
Day 2: Motorization, Voice Integration & Scene Handover
We mount motorized curtain tracks, install wireless presence sensors in dressing rooms, pair Apple Siri Shortcuts / Alexa / Google voice controllers, and set up your personalized "Good Morning", "Movie", and "Good Night" scenes on your smartphones.
4. Why Choose SmartNode™ Authorized Elite Hardware?
Many local electricians attempt retrofits using cheap generic imported modules bought off consumer websites. These generic modules frequently burn out due to Indian voltage spikes, hum loudly on ceiling fans, and rely on overseas Chinese servers.
As the SmartNode™ Authorized Elite Partner for Telangana, HOME-ART installs genuine, factory-certified hardware:
- Flame-Retardant Polycarbonate Enclosure: Engineered for Indian tropical heat and thermal safety.
- Silent 5-Step Fan Control: Zero motor humming or vibration.
- AWS Mumbai Cloud Infrastructure: Ultra-fast <80ms execution times and ironclad data privacy.
- 5-Year Direct Replacement Warranty: If a module ever fails, HOME-ART replaces it on-site same-day.
Get a Free 30-Minute Home Retrofit Survey
Living in an existing home in Hyderabad? Our engineers will visit your residence, inspect your switch backboxes, and demonstrate a live retrofit module on your own switchboard.