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Trade & DIY Supplies

Your source for plumbing, heating & tools.

Genuine branded parts at trade prices, shipped nationwide from our Hertfordshire warehouse.

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100% genuine partsSame-day dispatchFree over £90

30′delivery

To your van~30 min

Now on Deliveroo

Parts at your van in around 30 minutes.

Forgot a fitting? Order from our Knebworth warehouse and a rider brings it to the van, the job or your door.

Knebworth & StevenageMon–Fri, 9am–4:30pm

Open Box£112.99

Clearance & Open Box

Same quality parts. Smaller prices.

Unused or excellent-condition stock with minor packaging damage — all covered by our 30-day Lava Guarantee.

Damaged boxOpen boxClearance lines

Smart Home£66.99

Smart Heating

Smarter heating with ENGO Controls.

Wi-Fi & Zigbee thermostats, hot water timers and smart TRVs — easy to fit, easy to live with.

App controlWhite or Black

Order within00h00m00sfor same-day dispatch

Fast & Free DeliveryFree over £90 inc VAT

Trusted by Trades10,000+ happy customers

30-Day ReturnsNo-quibble guarantee

Here to HelpDedicated support Mon–Fri

Secure CheckoutSSL protected payments

Shop by Category

Find the right part, fast.

Browse our full range of plumbing, heating and trade essentials.

Heating

Heating

Controls, valves, pumps & treatments

Plumbing

Plumbing

Taps, cisterns, flush valves & spares

Pipe & Fittings

Pipe & Fittings

Barrier, MDPE, push-fit & press-fit

Tools

Tools

Pipe tools, torches & hand tools

MAPP Gas & Soldering

MAPP Gas & Soldering

Gas cylinders, torches & solder

Consumables

Consumables

Sealants, treatments & cleaners

Smart Home

Smart Home

Smart thermostats, timers & cameras

Bundles

Bundles

Save more on kits & multi-packs

Top Picks

Best sellers, ready to ship.

Courier handing plumbing parts to a plumber at a van

Now on Deliveroo

0

minutesaverage to your van

Local Express Delivery

Forgot a part? We'll bring it to the job.

Order from our Knebworth warehouse on Deliveroo and a rider delivers straight to the van, the job or your door.

1

Order on DeliverooFind LavaStore Knebworth in the app

2

We pick & packYour parts are prepared right away

3

Delivered to your vanIn around 30 minutes

Knebworth, Stevenage & nearbyMon–Fri · 9am–4:30pm

Our Own Brands

Built by Lava. Trusted by the trade.

Trade-quality products designed in-house and also stocked by leading UK retailers.

LavaTap Filter Kit

Boiling water taps, tanks, filter kits and PEX barrier pipe.

Plumbing pipe

Copper press-fit fittings and plumbing essentials, WRAS approved.

Wireless thermostat

Heating controls and drop-in replacements for popular models.

ENGO Controls

The smarter way to heat your home.

Smart, reliable heating control for homeowners and installers.

Wi-Fi & Zigbee thermostats
Control from your phone
White or Black finishes

Popular ENGO controls

0+Happy customers

0+Parts in stock

0+Trusted brands

Since 0Supplying the UK

Our Brands

Genuine parts from names you trust.

Secure

Honeywell

Fernox

Drayton

Todays Tools

Hemspan

Heatmiser

ENGO

LavaTap

LavaPlumb

LavaTherm

Our brands are also sold atB&Q Amazon eBay

Clearance & Open Box

Deals worth grabbing.

Lava Guarantee

Same parts. Smaller prices.

Unused or excellent-condition stock — every purchase covered by our 30-day Lava Guarantee or the manufacturer's warranty.

Damaged BoxOpen BoxClearance

Explore Clearance

For the Trade

Trade account? We've got your back.

Plumbers, heating engineers and installers get trade pricing, ex-VAT browsing and a team that knows the parts. Or visit our trade counter in Knebworth.

Trade pricingBrowse & buy ex-VAT

Same-day dispatchOrder before 1 PM

Trade counterKnebworth, SG3 6QX

Tech supportHelp from people who know

Call 01438 587901

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FAQ

Questions? We've got answers.

Quick answers on delivery, returns and trade accounts.

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