How to get better mobile signal at home

The most reliable ways to improve signal at home are to use the spots where signal is already strongest, turn on Wi-Fi calling, and, if that is not enough, use a carrier-approved repeater or switch carrier. No app can make the signal itself stronger. What you can change is where you use your phone and how it connects.

Start by measuring, not guessing

Before you change anything, find out what you are working with. Bars are too coarse, so look at the dBm reading. How to check your real signal strength on Android shows where to find it.

Take readings in every main room, at the front and back of the house, and upstairs if you have one. Note the network type too. This gives you a baseline, so you can tell whether any change actually helps.

Ways to improve signal at home, from free to paid

Try these roughly in order. The first few cost nothing, and they solve most everyday problems.

1. Use the best spot for important calls

Signal can vary a lot between rooms. A desk by a window on the side facing the nearest mast can be much better than a sofa in the middle of the house. Upper floors often do better than ground floors, and basements are usually worst. See how to find the spot with the best signal in your house for a step-by-step method.

2. Turn on Wi-Fi calling

If your broadband works well, Wi-Fi calling lets your phone make calls and send texts over Wi-Fi instead of the mobile network. Most carriers and modern phones support it. On most phones, open Settings and search for "Wi-Fi calling". It is usually the single biggest fix for calls at home. More on when to use it in Wi-Fi calling: when to turn it on.

3. Try a different network mode

If 5G is weak indoors, your phone may waste effort hunting for it. Setting the preferred network type to 4G can give a steadier connection. If 4G is poor but an older network is stronger, calls may hold better there. On most phones, search Settings for "Network mode" or "Preferred network type".

4. Remove what blocks the signal

You cannot rebuild your house, but some blockers are easy to move:

• Thick metal phone cases or cases with magnetic plates
• Metal shelving or appliances between you and the window
• Curtains with metallic linings

Some building materials, such as energy-efficient glass with a metal coating and foil-backed insulation, block signal heavily. If your home has these, signal may be much better by an open window or outside.

5. Refresh the connection

If your signal has been poor for a while in a spot where it is normally fine, switch airplane mode on for ten seconds and off again. The phone searches again and may find a better cell. Restarting the phone does the same.

6. Ask your carrier about home solutions

Some carriers offer small indoor cells that connect over your broadband, or approved repeaters, for customers with poor coverage at home. Ask whether they have an option for your address.

7. Consider an approved repeater

A repeater, sometimes called a booster, is a physical box with an outdoor antenna that picks up a signal and rebroadcasts it inside. It can help a lot when there is a usable signal outside but not inside. However, in many countries only approved models are legal to use, and badly installed units can interfere with the network for everyone nearby. Check your local rules and ask your carrier before buying one.

8. Compare other carriers

Different carriers use different masts and bands. If your home is in a gap in one network's coverage, another network may be fine. Ask neighbours which network they use and how it works for them, and try a pay-as-you-go SIM before you switch. How to compare carriers' coverage where you live explains a fair way to test.

What does not work

To save you money and time:

• Signal booster apps cannot increase the radio signal. A phone app has no way to make a mast louder or your antenna more sensitive.
• Stickers and antenna patches that claim to boost reception do not work.
• Holding the phone up high may gain you a few dB for a moment, but it is not a fix.

Keep a record

If you have tried everything to improve signal at home and it is still poor, or your signal at home was good and has got worse, write down readings, dates and times. Carriers do sometimes change or move equipment, and a clear record helps them find the cause.

How CellRadar helps

CellRadar shows your live signal in dBm with network type, band and cell ID, and explains each reading in plain words. You can walk around your home with the live readout in the notification bar to find the strongest spots, save readings on your own signal map, and export your history as a PDF or CSV report to share with your carrier. It measures and points to the fix; it does not boost signal.

Frequently asked questions

Can I improve signal at home without spending money?

Often, yes. Using the strongest room for calls, turning on Wi-Fi calling and choosing the right network mode cost nothing and solve many problems.

Are mobile signal repeaters legal?

It depends on the country. In many places only approved models may be used, and some require carrier permission. Check with your regulator or carrier before buying one.

Why is my signal worse in my new house than my old one?

Distance to the mast, the direction your rooms face and the building materials all matter. Modern insulated homes can block more signal than older ones.

Does Wi-Fi calling cost extra?

With most carriers, calls over Wi-Fi are charged the same as normal calls under your plan. Check your carrier's terms if you are unsure.