Poor mobile reception inside a building can be frustrating, particularly when your mobile phone works perfectly well outdoors.
This is a common problem in offices, warehouses, factories, hotels and other commercial buildings. Even when good mobile coverage is available nearby, several factors can prevent that signal from reaching people indoors.
Here are four common reasons for poor indoor mobile signal — and what you can do about them.
1. Distance from the Mobile Mast
The further a mobile signal travels from the network's mast, the weaker it can become.
Rural locations can experience weaker coverage because mobile masts are more widely spaced, but distance can also affect buildings in towns and cities.
Different mobile networks have different mast locations, so a building may receive good coverage on one network but struggle with another.
2. Terrain and Surrounding Buildings
Hills, valleys and large neighbouring buildings can obstruct mobile signals before they reach your premises.
Even within the same building, reception can vary significantly. Rooms facing the nearest mobile mast may receive a stronger signal than those on the opposite side.
3. Trees and Vegetation
Dense trees and woodland can weaken mobile signals, particularly when they lie between the mobile mast and your building.
Combined with the surrounding landscape and other obstructions, vegetation can contribute to inconsistent reception in and around a property.
4. Construction Materials
Modern building materials are one of the biggest causes of poor indoor mobile reception.
Reinforced concrete, steel structures, metal cladding, foil-backed insulation and energy-efficient glazing can all make it more difficult for mobile signals to penetrate a building.
This is why even a modern office with excellent outdoor coverage can have little or no mobile reception inside.
Can a Mobile Signal Booster Work if There Is No Signal Indoors?
Yes. Even if you have no mobile signal indoors, a signal booster can usually improve reception as long as there is a mobile signal available outside or at roof level.
A correctly designed system receives the available outdoor signal, boosts it and distributes it throughout the areas of the building requiring coverage.
This can improve both signal strength and reception quality, helping provide reliable mobile connectivity in buildings where mobile phones struggle to receive a signal indoors.
A Real Example: McLaren Construction
When changes to the local mobile network left McLaren Construction's headquarters with very poor indoor reception, a site survey identified sufficient mobile signal at roof level.
A CEL-FI installation was then used to improve mobile coverage throughout the three-storey building.
Read the McLaren Construction case study.
How Can You Improve Mobile Signal in Your Building?
Frequency Signal Solutions helps businesses and organisations improve indoor mobile connectivity using CEL-FI solutions suited to their building and network requirements.
We can help identify which networks need improving, assess the available outdoor signal and recommend a suitable solution, from smaller installations to larger commercial projects.
Contact us for an indicative quotation or learn more about our three-stage process.
For information about UK repeater regulations, see our Ofcom compliance guide.
Looking for a self-install solution for your home or small office? Visit Mobile Signal Boosters.