To choose a Safaricom network booster, first check that there is some Safaricom signal outside your building, then pick a kit that covers the band Safaricom uses at your location and the floor area you want to cover. Safaricom uses 900 and 1800 MHz for 2G calls, 2100 MHz for 3G and 800 MHz for 4G, so a kit that covers those bands will work with Safaricom across most of Kenya.

This guide explains how each choice affects the result, from a single room in Nairobi to a farmhouse in the Rift Valley, and how to set the kit up so it performs as it should.

How does a Safaricom network booster work?

A network booster, also called a repeater, has three main parts. An outdoor antenna picks up the Safaricom signal that reaches your roof. A booster unit amplifies it. An indoor antenna spreads the stronger signal through the rooms where you need it. Your phone talks back to the Safaricom mast through the same path, so calls connect more reliably, voice quality improves and mobile data becomes usable indoors.

The key point is that a booster amplifies what is already there. It does not create a new signal. If you can get one or two steady bars of Safaricom outside, for example on the roof or at the edge of the compound, a booster can bring that signal inside.

Which bands does Safaricom use?

Safaricom uses several frequencies, and different ones may be strongest at your address.

• 900 MHz and 1800 MHz carry 2G voice calls and SMS.
• 2100 MHz carries 3G voice and data.
• 800 MHz carries 4G, which travels well over distance and through walls.

If your main problem is dropped calls, a kit covering 900 and 1800 MHz may be enough. If you want reliable M-PESA, WhatsApp and browsing indoors, choose a kit that includes 800 MHz for 4G. A tri-band booster or a universal kit covers several bands at once and keeps working if someone in the house uses Airtel or Telkom. Our Safaricom booster page lists the kits that match.

What size Safaricom booster do you need?

Measure the indoor floor area you want to cover rather than the whole plot. As a rough guide:

• A flat, a bedsitter or a small bungalow usually fits a 300 square metre kit such as the Universal Signal Booster 300 sqm.
• A larger house or a small office often needs around 500 to 1,000 square metres, for example the 1000 sqm universal kit.
• Warehouses, schools, hotels and farm buildings usually need a 5,000 square metre system or several indoor antennas.

Stone walls, concrete slabs and iron-sheet roofs absorb a lot of signal. In a building with many internal walls, choose a kit with some headroom over the bare floor area.

How do you set up a Safaricom booster for the best result?

Good placement matters as much as the kit itself. Follow these steps, and see our installation guide for detail.

• Find the best Safaricom signal outside. Walk around with your phone and check the roof line, the gate and any high point you can safely reach.
• Mount the outdoor antenna at that spot, as high as practical, and point a directional antenna towards the nearest Safaricom mast.
• Run the cable inside to the booster unit, keeping it away from sharp bends.
• Place the indoor antenna in the room where you use your phone most.
• Keep the indoor and outdoor antennas well apart, ideally with a roof or solid wall between them, so the system does not feed back on itself.

Switch the booster on and check your phone in each room. Calls should connect first time, and data should feel steadier. If the far rooms are still weak, an extra indoor antenna usually fixes it.

Is a Safaricom booster better than switching networks?

Sometimes another network is stronger at your address, and switching is the cheapest fix. But many people rely on Safaricom for M-PESA, work numbers and family contacts and do not want to change. A booster lets you keep Safaricom and improve the signal indoors, as long as there is some signal outside to work with.

If you are torn, a universal kit is the safe choice. It covers Safaricom, Airtel and Telkom bands together, so you are not tied to one network.

What comes in the box, and how is it delivered?

Each kit includes the booster unit, an outdoor antenna, an indoor antenna, cable and a power supply. Delivery is free and usually takes 5 to 7 working days, and you can return the kit within 30 days if it is not right for you. Our buyers guide covers the questions most customers ask before ordering.

Frequently asked questions

Does a Safaricom booster improve M-PESA and data?

Yes, if the kit covers the band carrying Safaricom 4G or 3G at your location, data-based services become more reliable indoors.

Will one booster work for Safaricom and Airtel?

A universal or multi-band kit covering both networks’ bands will boost both at the same time.

Can a booster help if there is no Safaricom signal outside?

No. It needs at least a weak, steady signal outside the building.

Can I fit a Safaricom booster myself?

Most home and office kits are built for self-installation with basic tools.

Tell us where you are and how big the space is, and we will match a kit to the Safaricom band at your location. See Safaricom booster kits