Robot mower garages: do you need one?

What a robot mower garage actually does

Most robot mowers carry an IPX rating and are designed to work and charge outdoors through a British summer. A garage is therefore about comfort and tidiness more than survival. Its main jobs are shading the mower from strong sun, which helps keep the battery and electronics cooler, and keeping leaves, twigs, bird droppings and hail off the top cover and the dock.

Some owners also like the way a shelter hides the mower from casual view. That is a minor security benefit; the PIN code, alarm and app tracking found on many models do more. A garage does not replace winter storage. Many makers advise bringing the mower indoors in winter, and our rain guide covers how weather affects robots.

Clearance around the dock

The mower needs room to approach, reverse and turn as it docks and leaves. Wired models usually need a straight run of boundary or guide wire in front of the station, and some need clear lawn to the sides. The exact distances vary by model, so check the installation section of your manual before building anything.

As a rule of thumb, the garage must sit entirely over the dock without touching the charging plate, the contacts or the wire connections. The opening must be wider and taller than the mower with a margin, so a bump sensor or lift sensor is not triggered as it enters. Sloping roofs and side panels should not hang down into the mower's path.

1. 1

   Read the manual's dock installation diagram and note any clearance figures.

2. 2

   Measure the mower's height, width and length with the cover fitted.

3. 3

   Leave generous space above and beside the mower, not a snug fit.

4. 4

   Keep the approach in front of the dock open lawn, free of posts or legs.

5. 5

   Run several docking cycles after fitting and watch for bumps or stops.

Airflow, heat and sensors

Lithium-ion batteries dislike heat, and charging adds warmth of its own. A garage that shades the mower but traps air can make things worse, so leave open sides or vents and avoid fully enclosed boxes with doors. Dark materials in full sun soak up heat; pale or slatted timber is better.

Wire-free models need extra care. RTK mowers depend on a clear sky view for the reference antenna and often for a receiver on the mower, and a roof directly over a mast or antenna can weaken the signal. Camera and lidar models need clear sight lines as they leave the dock. Never mount anything on the antenna, and keep metal roofs away from any antenna or sensor unless the manual says it is fine.

Note:Most docks connect to mains power through a low voltage transformer. Keep the transformer and any outdoor sockets dry and protected as the manual describes, use a suitable outdoor socket with RCD protection, and ask a qualified electrician if you need a new outdoor supply. Disconnect power before working near the dock.

Makers' rules for covering charging stations

Makers sell their own garages for many ranges, sized to fit their docks and tested against their docking routine. If you use a third party or DIY shelter, check the manual and warranty terms first. On many models the instructions say not to fix anything to the charging station itself, not to block vents on the station or the power supply, and not to stand anything on the guide or boundary wire near the dock.

The exact wording varies by brand and model, so treat these as points to check rather than universal rules. If you are unsure, a dealer can confirm what is approved. Our Husqvarna Automower models compared and Worx Landroid range guides help you identify your model family.

Planning a DIY robot mower house

A simple lean to roof on four short legs is enough for most gardens. Set the legs outside the mower's path and outside the dock base plate, use treated timber or weatherproof board, and keep the roof overhang deep enough to shade the top cover at midday. Avoid heavy builds that could topple onto the mower in wind.

Before you build, think about whether the dock is in the right place at all. Moving it into natural shade beside a hedge or wall, with the same clearances, may make a garage unnecessary. Choose a level, firm spot; docks on a slope are a common cause of charging faults, covered in robot mower not charging.

• Open sides or slats for airflow
• Opening wider and taller than the mower with a margin
• Legs clear of the dock plate, contacts and wire
• No roof over an RTK antenna or camera sight line
• Light colour or natural timber to reduce heat

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Frequently asked questions

Do robot lawn mowers need a garage? No. They are designed for outdoor use, and the dock is built for rain. A garage is a nice extra for shade and tidiness, not a requirement.

Can a garage stop my mower docking? Yes, if it is too tight, has legs in the approach or triggers a bump sensor. Leave plenty of space and test several docking cycles after fitting it.

Can I cover the charging station with a tarp? It is best not to. A tarp can flap into the path, trap heat and moisture and block sensors. Use a rigid, ventilated shelter that the manual allows.

Should I leave the mower in its garage over winter? Many makers recommend cleaning, charging and storing the mower indoors for winter, and some suggest bringing the dock in too. Check your manual.