Key facts
- A booster needs at least 1–2 bars on the roof, terrace or balcony. It amplifies existing signal — it cannot create signal where there is none.
- Pick by operator bands first (Jio 850/2300 MHz; Airtel, Vi and BSNL mostly 900/1800/2100 MHz), then by floor area.
- SIGLIFT home kits are rated for about 1,500–3,000 sq.ft; high-gain models cover 5,000 sq.ft and up to 10,000 sq.ft.
- Each kit ships complete — booster, outdoor antenna, indoor antenna, cable and adapter — and most homes are set up in a few hours.
- Running cost is similar to a Wi-Fi router: a few watts, 24x7.
- 5G phones benefit too: calls use 4G/VoLTE and phones fall back to 4G indoors. The kits amplify 2G/3G/4G bands, not 5G.
Why is mobile signal weak inside my home?
Most “no network at home” complaints are not about the tower — they are about the building. Signal that is perfectly usable on your balcony can lose most of its strength by the time it reaches a bedroom. The usual causes:
- RCC walls and slabs. Reinforced concrete and brick absorb radio signal. Every wall between you and the window costs signal.
- Tinted or low-E glass. Modern energy-saving windows have a metal coating that reflects mobile signal as well as heat.
- Floor level. Ground and lower floors are often shadowed by neighbouring buildings. Very high floors “see” many towers at once, so bars look fine but calls crackle.
- Distance and terrain. Homes on the edge of town, in hills or in villages may be several kilometres from the nearest site.
- Basements. Earth and a thick slab overhead block almost everything — see our basement signal booster guide.
How does a network booster for home work?
A home kit has three parts connected by low-loss coaxial cable:
- Outdoor (donor) antenna on the balcony, terrace or roof, facing the tower side, picks up the existing signal.
- Booster (amplifier) strengthens the signal in both directions — tower to phone and phone to tower.
- Indoor antenna rebroadcasts the stronger signal inside, usually from a wall or ceiling in a central spot.
Good boosters include automatic gain control (AGC/ALC), which turns the gain down if the signal outside is strong or the antennas are too close, so the system stays stable. For a deeper explanation, read how a mobile signal booster works.
Which network booster is right for my home?
Choose in three steps: operator bands, home size, then outdoor signal. Getting the first step wrong is the most common reason a booster “doesn’t work”.
Step 1: Match your operator’s frequency bands
Each operator uses different frequencies, and allocations differ by telecom circle. A booster only amplifies the bands it is built for.
| Operator | Bands commonly used for 4G/VoLTE | SIGLIFT models to consider |
|---|---|---|
| Jio | 850 MHz (Band 5), 1800 MHz (Band 3), 2300 MHz (Band 40) | SL-850 series, SL-8523W, SL-8518-23S/B |
| Airtel | 900 (Band 8), 1800 (Band 3), 2100 (Band 1), 2300 MHz (Band 40) | SL-900 series, SL-1823B |
| Vi | 900, 1800 and 2100 MHz | SL-900 series |
| BSNL | 900 and 2100 MHz (most circles) | SL-900 series |
Two SIMs at home — say Jio and Airtel? Choose a model that covers a band both use (for example 1800 + 2300 MHz on the SL-1823B, or 850 + 1800 + 2300 MHz on the SL-8518-23 series). Not sure of your band? Send us a screenshot of your phone’s network info on WhatsApp and we’ll confirm it. You can also see the fit for Jio, Airtel, Vi and BSNL.
Step 2: Size the kit to your home
| Home | Typical area | Kit class | Extra indoor antennas |
|---|---|---|---|
| 1BHK / 2BHK flat | 600–1,200 sq.ft | 1,500–2,000 sq.ft kit (SL-850W, SL-900W, SL-850B, SL-900G) | Usually none |
| 3BHK / 4BHK flat | 1,400–2,500 sq.ft | 2,500–3,000 sq.ft kit (SL-900SB, SL-900MB, SL-1823B, SL-8523W) | One more if bedrooms are at opposite ends |
| Independent house, 2–3 floors | 2,000–4,500 sq.ft | 3,000–5,000 sq.ft kit (SL-900MB, SL-900-23DB, SL-8518-23S/B) | Splitter + one antenna per floor |
| Kothi / villa with basement | 4,000+ sq.ft | 5,000–10,000 sq.ft kit (SL-900-23DB, SL-8518-23B, SL-850-27DB) | Splitter + dome antenna in the basement |
Rated coverage assumes good outdoor signal and an open plan. With only 1 bar outside or many thick walls, step up one size or add an indoor antenna.
Step 3: Check the signal outside
Walk to the balcony, terrace or roof and note the bars (or the dBm value) on the SIM you want to boost. Two or more bars outside is a comfortable starting point; one bar usually needs a high-gain directional antenna. Our free signal strength checker tells you what your reading means, and the signal booster finder turns your answers into a model recommendation.
Network booster for flats and high-rise apartments
In apartments, the outdoor antenna usually goes on the balcony railing or an outer wall on the side that faces the tower — not the side facing the next building. The booster sits indoors near a power socket, and the cable enters through an existing AC-pipe hole or a window frame, so no new drilling through the wall is needed. On higher floors, a directional antenna helps the booster lock on to one tower instead of mixing several. If the only good signal is on the common terrace, you will normally need your society or RWA’s consent to mount the antenna there.
Network booster for independent houses and kothis
Houses are usually easier: mount the outdoor antenna on a short pole on the roof, point it towards the tower and bring the cable down to the top floor. For two or three floors, a 2-way or 3-way splitter feeds one indoor antenna per floor — a stairwell or central lobby is often the best place because signal spreads through open space better than through slabs.
Room-by-room coverage: where should the indoor antenna go?
- Central and high. A hallway or living-room wall that “sees” most doors gives the widest coverage. Ceiling-mounted dome antennas suit false ceilings and open plans.
- Count the walls. Each solid wall between the indoor antenna and your bed or desk reduces the boosted signal. If a room is two or three walls away, add a second antenna there.
- Keep the antennas apart. The outdoor and indoor antennas need separation — ideally a floor or a solid wall between them and several metres apart — or the booster will reduce its own gain to avoid feedback.
- Avoid metal. Don’t mount antennas behind steel almirahs, inverters or metal grills.
Can I install a home signal booster myself?
Yes. SIGLIFT kits are plug-and-play: mount the outdoor antenna, route the cable, place the booster and indoor antenna, then power up. Most homes are done in two to four hours, and our technical team guides you on phone or WhatsApp. Follow our step-by-step installation guide. Professional installation is available in many cities — ask us when you enquire.
How much electricity does a home booster use?
Very little. A home booster runs from a small adapter and typically draws about 5–15 watts — similar to a Wi-Fi router. Running 24x7, that is roughly 45–130 units a year, or around ₹350–₹1,000 at typical domestic tariffs. Because the draw is small, it can also run on your inverter during power cuts.
How much does a network booster for home cost?
Complete kits in India typically range from about ₹5,000 to ₹35,000, depending on bands, gain, coverage, antennas and installation. See our network booster price guide for what drives the price and the hidden costs to avoid, or ask us for an exact quote for your home.
Network booster vs Wi-Fi range extender vs “network extender”
These names get mixed up. A Wi-Fi range extender repeats your broadband Wi-Fi — it does nothing for mobile calls. A mobile network booster (also sold as a network extender or cell phone signal booster) amplifies the operator’s mobile signal, so every phone on that network benefits, including visitors’ phones. If you already have fast broadband, Wi-Fi calling is another option — compare them in signal booster vs Wi-Fi calling.
When is a booster not the right fix?
- There is no usable signal even on the roof — nothing to amplify.
- Signal is strong but data is slow only at peak hours — that is tower congestion, which a booster can’t fix.
- The problem is limited to one phone — check the phone’s network settings, SIM and VoLTE first.
If you’re unsure which case you’re in, share your details and a SIGLIFT expert will tell you honestly whether a booster will help. With 9,800+ installations across 19+ states and UTs, we’ve seen most kinds of homes.
