If your garden office drops video calls, the fix is not a better extender. It is a link built for the distance: a cable in a duct, a point to point link, or an outdoor access point. This guide takes you through choosing the right one, step by step. The same steps apply to a granny annexe, a garage, a summer house or a workshop.
If you would rather hand it over, our garden office and outbuilding WiFi service covers the whole job.
Step 1: Check whether the problem is the house or the garden
Run a speed test in three places: next to the router, in the room nearest the garden, and in the garden office.
- Slow everywhere? The broadband or the router is the problem, not the garden. Start with why video calls keep dropping at home.
- Fine in the house, poor in the office? It is the link across the garden. Carry on.
- Fine by the router, poor in the back of the house too? Fix the house WiFi first, or the garden office has nothing good to start from. A router tucked in a hallway cupboard at the front of the house is a common culprit.
Step 2: Measure the route and note what is in the way
Before choosing anything, look at the route from the router (not the back door) to the office:
- Distance. Pace it out, including the run inside the house to the router.
- What is underfoot. Lawn and flower beds are easy to dig. Patio, paving, decking and driveways are not.
- Is there a duct already? Garden office installers sometimes leave a duct for power or data. Check both ends and whether it has a draw cord in it.
- Line of sight. Can you see a wall of the office from a wall of the house, without trees or a shed in the way?
- Power in the office. An access point needs power, which usually comes over the network cable itself.
Step 3: Choose the method
Cable in a buried duct: best for a room you work in every day
A proper cable is the most reliable option, because nothing depends on radio signal crossing walls and gardens. A copper Ethernet link can run up to 100 metres end to end, which covers almost every garden.
How it is done:
- Outdoor rated Cat6, pulled through underground duct rather than laid straight in the soil
- Terminated neatly at the house end and in the office
- An access point inside the office, powered over the same cable
- Optional desk sockets and a small switch for a docked laptop or a printer
If a duct is already in place, the job is quicker: we pull the cable through and finish both ends. If you are digging anyway for power, add a second duct for data now. Our data cabling page explains what a tidy job looks like, and the cost to wire a house for Ethernet covers what moves the price of a garden run.
A point to point link: when you cannot dig
A point to point link is not a mesh node in the window. It is two dedicated radios, one on the house and one on the office, aimed at each other to make a focused link.
It works well when:
- The two buildings can see each other, with no trees or sheds in between
- Both radios can go outside, high enough to clear fences
- Digging means lifting a patio, paving or a driveway
It goes wrong when the units are fitted behind glass, aimed badly, or blocked by a tree that has grown since. One enquiry we had described exactly that: a link of under 20 metres that had never worked properly, where lifting the patio was not an option. A short link like that should be easy, so the mounting and the kit are the first things to check.
An outdoor access point: for the garden and nearby buildings
A weatherproof access point on the outside wall of the house covers the patio and lawn, and it can reach a summer house or a car charger close to the house. For a room you work in every day, an access point inside the office is still better, because cabin walls cut the signal.
Mesh: only when the office is close and clear
Mesh can reach a garden office over a short, open path, if a node can sit in a strong spot inside the house with a clear view of the office. It is the least predictable option for daily work, and a node at the edge of coverage just repeats a weak signal. Is mesh WiFi worth it explains where it works.
Why extenders keep failing in garden offices
Several of the enquiries we get start the same way. One from Windsor described an extender that had worked well for a while, then became weak and kept cutting out, in a household where two people work from home. Another came from someone working from a garage, whose old extender had gone when the previous tenant left and whose new one would not connect.
The reason is the same each time. An extender repeats the signal it receives, and outside the house that signal is already weak. Small changes, such as a moved router, a new device or summer leaves, tip it over the edge. Buying a more powerful extender does not change that. A link built for the distance does.
Step 4: Put an access point inside the office
Whichever link you choose, end it in an access point inside the office. A wired socket gives one device a cable; an access point gives every phone, laptop and printer a strong signal. Set it up on the same network name as the house so devices move between the two without you noticing. Why wired access points matter explains the difference.
Step 5: Test it before you rely on it
Test on a video call at a busy time of day, not just a speed test at midnight. If something is wrong, the symptoms usually point to the cause:
- Access point shows connected, but no internet. We had an enquiry where an access point in a garden room broadcast WiFi, but its Ethernet light was off and devices showed no internet. That points to the cable or the wall sockets, not the WiFi. A cable tester on the run usually finds it.
- Fast, then slow, then fast. Often a wireless link at the edge of its range, or interference on a crowded channel.
- Drops when it rains or in summer. Line of sight on a wireless link, usually trees.
What it costs and what we need to quote
The price depends on distance, what has to be dug or lifted, whether a duct is already in the ground, and how many access points and desk sockets you want. We quote a fixed price from photos. Send:
- Where the router is
- The route from the house to the office
- The inside of the office
- Both ends of any duct already in the ground
Garden offices across Berkshire and Surrey
We fit garden office links across the area, with local pages for Windsor, Maidenhead, Slough, Ascot, Virginia Water and Bracknell. If the problem is a car charger on the driveway rather than an office, see our guide to EV charger WiFi.