Services · Irrigation · South West London

Garden irrigation systems, designed and installed in South West London.

Automatic watering that gives each part of the garden what it needs and nothing more. Designed around your soil, your water pressure and your planting, installed neatly, and set up so you can forget about it.

What we do

We design and install automatic irrigation for domestic gardens: drip lines for borders, beds and hedges; pop-up sprays or rotors for lawns; micro-irrigation for pots and planters. Everything runs from a controller on a schedule you set once.

Most of our work is in Teddington, Twickenham, Richmond, Kingston and Wimbledon. We also take on projects further into Surrey and across London where the garden justifies the travel.

  • Site survey: flow and pressure test, soil, sun and shade, plant water needs
  • Zone design so lawns, borders and pots each get the right amount
  • Supply and installation of pipework, valves, emitters and heads
  • Controller set-up, including rain sensors and weather-based scheduling
  • Commissioning, a walk-through with you, and a written summary
  • Seasonal checks, adjustment and winter shut-down

Designed for London clay

Most gardens around here sit on heavy clay. Clay takes water slowly, at roughly 5 to 8 millimetres an hour, while a spray head can put down ten times that. Water it like sand and most of it runs off or sits on the surface.

So we programme every system on clay with cycle-and-soak: short runs with a pause between them, so the water actually goes in. It costs nothing extra and it is the single biggest difference between a system that works and one that just looks busy.

What we install

We specify Rain Bird components as standard: pressure-compensating dripline for borders, pop-up sprays and rotors matched to the lawn shape, and outdoor controllers that support rain sensors and cycle-and-soak. Where mains pressure or flow is not enough, we design around a break tank and a DAB pump, sized from the manufacturer curve rather than the headline figure on the box.

We keep pipework hidden, use proper valve boxes, and fit the parts that are easy to leave out: a disc filter to protect the dripline, a pressure regulator, a drain point for winter.

Regulations we work to

Buried garden irrigation is classed as fluid category 5 under the Water Supply (Water Fittings) Regulations, the highest risk category. That means a type AA or AB air gap between your drinking water and the irrigation system. Where a pump is used, a break tank is a requirement, not an extra.

Any 230 volt outdoor connection is notifiable under Part P and is done by a qualified electrician with a certificate. The 24 volt valve wiring is not. We tell you which is which in the quote.

Hosepipe bans and dry summers

Thames Water restrictions in recent summers have banned hosepipes and sprinklers but generally allowed drip irrigation on a timer. We confirm the current rules with the water company whenever a restriction is announced, and we design systems so the borders and hedges, which cost the most to replace, sit on drip zones that can keep running.

How a project runs

  • A free visit to look at the garden, test the supply and talk through what you want watered
  • A zone plan and a fixed-price quote, usually within a week
  • Installation, typically one to three days depending on the garden
  • Commissioning and a walk-through of the controller with you
  • A check in the first month, then seasonal adjustment as part of maintenance if you want it
No. 01 Irrigation systems questions

Questions we are asked about irrigation systems.

How much does a garden irrigation system cost in London?

It depends on the number of zones, whether the lawn is included, and whether a pump and tank are needed. A drip system for the borders of a typical Teddington garden is a modest project; adding pop-up lawn irrigation and a pumped supply is a larger one. We give a fixed price after a free visit, with the parts and labour itemised.

Will an irrigation system save water?

Compared with a hosepipe or sprinkler, yes. Drip lines put water at the roots, a rain sensor stops the system when it is not needed, and cycle-and-soak stops run-off on clay. Most households water less overall and the plants do better.

Can it run while we are away?

That is the point of it. The controller runs the schedule whether you are there or not, and a rain sensor pauses it in wet weather. Weather-based controllers go further and adjust the run times to the forecast.

Can drip irrigation run during a hosepipe ban?

Under recent Thames Water restrictions, drip irrigation on a timer has been allowed while hosepipes and sprinklers were not. The rules are set by the water company each time, so we check when a ban is announced rather than assume.

Do I need a pump and tank?

Only if the mains flow or pressure is not enough for the zones you want, which we find out at the survey. If a pump is needed, the water regulations require a break tank with a proper air gap between the mains and the system.

What is cycle-and-soak?

Instead of running a zone for twenty minutes in one go, the controller runs it three or four times for a few minutes each, with a pause between. On clay soil the pauses let the water soak in instead of running off. We set it up on every system on clay.

Which brands do you use?

Rain Bird for controllers, valves, dripline and heads, and DAB pumps where a pumped supply is needed. They are widely available, well documented and easy to service in years to come.

Do you look after the system afterwards?

Yes. Seasonal checks, adjusting run times as the planting matures, and draining down before the first frost. If you have an annual maintenance plan with us, this folds into it.

Do you repair or extend existing systems?

Yes. We will survey what is there, tell you honestly whether it is worth keeping, and quote for repairs, a new controller or extra zones.

Which areas do you cover for irrigation?

Teddington, Twickenham, Richmond, Kingston, Wimbledon and the rest of South West London as our core area, and projects across Greater London and into Surrey where the job justifies the travel.

No. 02 Other services

Also from NT.

Areas we cover → · Pricing →

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