Key facts
- Size by floor area, number of floors and walls — not by headcount alone. SIGLIFT models are rated from 1,500 sq.ft up to 10,000 sq.ft.
- Cabins and multiple floors need a splitter plus one indoor antenna per zone; long corridors suit panel antennas, open halls suit ceiling domes.
- If staff use different operators, choose a model covering a band they share — or two boosters with different band sets.
- Glass façades, RCC cores, basements and metal racking are the usual culprits in commercial buildings.
- Trusted by institutions including the High Court of Delhi, Maharashtra Police, Taj Hotels and PVR Cinemas.
- 1-year warranty, 10-day returns, cash on delivery and 24x7 support.
Why is mobile signal so poor in offices and shops?
Commercial buildings are often harder on mobile signal than homes. Typical reasons:
- Glass façades. Energy-efficient glazing has a metallic coating that blocks signal — offices can have full bars at the window and none at the desk.
- RCC cores and deep floor plates. Lift shafts, stairwells and the middle of large floors sit far from any window.
- Basements and lower-ground floors. Showrooms, restaurants, gyms, stores and parking below ground get almost no signal.
- Metal. Warehouse racking, sheet-metal roofs and factory machinery reflect and absorb signal.
- Many users at once. A weak signal shared by dozens of phones feels worse than the same signal at home.
What does weak signal cost a business?
It is rarely just “annoying”. When mobile signal is poor at work:
- Customer calls go unanswered or drop mid-conversation — often without you knowing they tried.
- UPI payment alerts, bank OTPs and card-machine confirmations arrive late, so the counter slows down.
- Staff step outside to take calls, and sales or support calls sound unprofessional.
- Delivery partners, visitors and patients can’t reach you or use their phones on site.
As one business owner put it after installing SIGLIFT: our productivity has increased and frustration has decreased.
Which office network booster do I need?
| Space | Typical area | Kit class | Typical layout |
|---|---|---|---|
| Shop, clinic, small office | 300–1,500 sq.ft | 1,500–2,000 sq.ft kit | One indoor antenna, centrally placed |
| Office with cabins | 1,500–3,000 sq.ft | 2,500–3,000 sq.ft kit | 2-way splitter: hall + cabin corridor |
| Showroom, restaurant, bank branch | 3,000–5,000 sq.ft | 5,000 sq.ft kit (SL-900-23DB, SL-8518-23S/B) | 2–3 ceiling domes |
| Warehouse, factory floor, large office | 5,000–10,000 sq.ft | 10,000 sq.ft kit (SL-850-27DB) or 5,000 sq.ft kits per zone | 3-way splitter, panel antennas along aisles |
| Multi-floor building | Any | Depends on floors and outdoor signal | Riser cable + splitter + one antenna per floor |
Above 10,000 sq.ft, or where several operators must all be covered, the design usually uses more than one booster. Share a floor plan and we’ll propose a layout — it costs nothing to ask.
Covering staff on different operators
Offices rarely have everyone on one network. Each SIGLIFT model covers a specific set of bands (for example 900/1800/2100 MHz or 850/1800/2300 MHz). If most staff are on Airtel and Vi, a 900-series model fits both. If Jio and Airtel users dominate, a model with 1800 and 2300 MHz covers the bands they share. Where coverage for every operator is essential, two boosters with complementary bands are the cleaner solution. Check each network’s fit on the Jio, Airtel, Vi and BSNL pages.
Designing coverage for cabins and multiple floors
The booster’s output is shared between indoor antennas through splitters. A 2-way splitter halves the power to each antenna, so good designs place antennas where people actually sit and avoid wasting signal on store rooms.
- Open halls and false ceilings: dome antennas radiate in all directions from the ceiling.
- Corridors, aisles and long rooms: panel antennas push signal in one direction.
- Extra floors: run LMR-400 cable up the shaft or stairwell and feed one antenna per floor from a 3-way splitter.
- Basement stores or parking: see basement signal booster for layouts.
Keep the rooftop (donor) antenna well separated from indoor antennas — ideally a slab between them — so the booster can run at full gain.
Installing a booster in a commercial building
- Survey: note bars or dBm outside and at the worst desks for each operator. Our signal strength checker helps.
- Permissions: get the building manager’s go-ahead for the roof or façade antenna and the cable route.
- Mount and route: outdoor antenna on a pole or bracket facing the tower; cable through an existing shaft or conduit.
- Place the booster near a power point in a ventilated spot, then the splitters and indoor antennas.
- Test calls and data at every desk and in cabins; fine-tune antenna direction.
Work can be scheduled after hours so the office isn’t disturbed. Our full installation guide explains each step.
Who uses SIGLIFT boosters at work?
SIGLIFT has completed 9,800+ installations across 19+ states and UTs, including institutions such as the High Court of Delhi, Maharashtra Police, Taj Hotels, PVR Cinemas, OYO, DLF, Big Bazaar and Vidyamandir Classes — alongside thousands of shops, clinics, offices and warehouses. A warehouse operations manager told us: “now we don’t have any signal dead zones.”
What does an office booster cost?
For a single floor, cost is similar to a large-home kit; multi-floor and warehouse designs add splitters, antennas, cable and installation. See the network booster price guide for what drives the cost, then ask for a quote based on your floor plan.
When a booster won’t solve it
If there is no usable signal even on the roof, or data is slow only at peak hours because the tower is congested, a booster isn’t the answer. For offices with good broadband, Wi-Fi calling can cover staff phones — compare the options in signal booster vs Wi-Fi calling.
