# Williams Trade Only Plumbing & Heating Supplies

> Williams is an independent, trade-only plumbing and heating merchant serving professional installers across the South of England. We supply plumbing, heating, bathroom, kitchen, electrical and tools products through our branch network and online. Established over 50 years ago and based in Fareham, Hampshire, we trade exclusively with account holders. All prices are shown excluding VAT.

This file maps the public product catalogue and key trade information. Use the product sitemap for a full product index. Category pages list ranges on the site and basket checkout is available after sign-in.

- [Products XML sitemap](https://www.tradeonlyplumbing.co.uk/sitemaps/products.xml)

## Product categories

- [Heating & Hot Water](https://www.tradeonlyplumbing.co.uk/category/heating-hot-water)
  - [Boilers](https://www.tradeonlyplumbing.co.uk/category/all-boilers): Gas Boilers; Oil Boilers; LPG Boilers; Electric Boilers; Pre-Built Boiler Packs
  - [Boiler Flues & Accessories](https://www.tradeonlyplumbing.co.uk/category/all-boiler-flues-%26-accessories): Gas / LPG Boiler Flues & Accessories; Oil Boiler Flues & Accessories; Electric Boiler Flues & Accessories; Oil Tanks
  - [Boiler Spares](https://www.tradeonlyplumbing.co.uk/category/all-boiler-spares): Spares Best Sellers
  - [Renewable Energy](https://www.tradeonlyplumbing.co.uk/renewable-energy): Cylinders; Solar Thermal; Air Source Heat Pumps; Renewables Accessories
  - [Air Conditioning](https://www.tradeonlyplumbing.co.uk/category/air-conditioning-units)
  - [System Protection](https://www.tradeonlyplumbing.co.uk/system-protection): Central Heating Filters; Central Heating Chemicals; Central Heating Chemical Test/Fill Kits; Scale Inhibitors; Water Softeners; Deaerators; Powerflushing
  - [Radiators & Towel Rails](https://www.tradeonlyplumbing.co.uk/category/radiators-%26-towel-rails): Compact Radiators; Designer Radiators; Column Radiators; Electric Radiators; Towel Rails; Fan Convectors; Radiator Accessories; Towel Rail Accessories; Radiator Valves
  - [Central Heating Controls](https://www.tradeonlyplumbing.co.uk/category/central-heating-controls): Thermostats; Programmers & Time Clocks; Internet Controls; Motorised Valves; Heat Packs; Wiring Centres
  - [Shower Pumps & Boosting](https://www.tradeonlyplumbing.co.uk/pumping-boosting): Heating & Hot Water Pumps; Mains Boosting; Condensate Pumps; Pump Accessories
  - [Water Storage](https://www.tradeonlyplumbing.co.uk/water-storage): Vented Cylinders; Unvented Cylinders; Immersion Heaters & Thermostats; Cold Water Storage Tanks; Cylinder & CWS Accessories
  - [Underfloor Heating](https://www.tradeonlyplumbing.co.uk/underfloor-heating): Hetta Systems; Polypipe; Speedfit; Warmup; Maincor
  - [Water Heaters](https://www.tradeonlyplumbing.co.uk/water-heaters): Instantaneous Water Heaters; Storage Water Heaters; Gas Water Heaters
  - [Expansion Vessels & Accessories](https://www.tradeonlyplumbing.co.uk/expansion-vessels-%26-accessories): Expansion Vessels; Expansion Vessel Accessories
  - [Alarms](https://www.tradeonlyplumbing.co.uk/alarms): Smoke Alarms; Carbon Monoxide Alarms
- [Bathrooms](https://www.tradeonlyplumbing.co.uk/bathrooms)
  - [Showers](https://www.tradeonlyplumbing.co.uk/category/all-showers): Shower Enclosures; Shower Trays; Electric Showers; Mixer Showers; Digital Showers; Shower Accessories; Shower Wastes, Traps & Accessories
  - [Toilets](https://www.tradeonlyplumbing.co.uk/category/all-toilets): Wall Hung Pans & Frames; Urinal Systems; Toilet Seats; Toilet Fittings & Spares; Flush Plates & Buttons
  - [Basins & Pedestals](https://www.tradeonlyplumbing.co.uk/category/basins-pedestals): Wash Basins; Semi Recess; Pedestals; Basin Wastes, Traps & Accessories
  - [Baths](https://www.tradeonlyplumbing.co.uk/category/baths): Conventional Baths; Shower Baths; Bath Screens; Bath Panels; Bath Wastes, Traps & Accessories
  - [Taps](https://www.tradeonlyplumbing.co.uk/taps): Basin Taps; Bath Taps; Commercial Taps; Tap Spares
  - [Bathroom Furniture](https://www.tradeonlyplumbing.co.uk/bathroom-furniture): Instinct Furniture; Pre-Built Units
  - [Pumps & Macerators](https://www.tradeonlyplumbing.co.uk/pumps-macerators): Shower Pumps; Macerators; Water Boosting
  - [Towel Rails & Accessories](https://www.tradeonlyplumbing.co.uk/towel-rails-accessories): Towel Rails; Towel Rail Accessories
  - [Wetroom & Disabled Adaptions](https://www.tradeonlyplumbing.co.uk/category/wetroom-and-disabled-adaptions): Wetrooms; Disabled Adaptions
  - [Bathroom Accessories](https://www.tradeonlyplumbing.co.uk/category/bathroom-accessories): Mirrors
  - [Bathroom suites by range](https://www.tradeonlyplumbing.co.uk/shop-by-range): Ideal Standard Bari; Instinct Pro Della; Instinct Pro Tulla; Instinct Pro Allerston; Bathrooms 2 Go
- [Kitchens](https://www.tradeonlyplumbing.co.uk/category/kitchens)
  - [Kitchen Sinks](https://www.tradeonlyplumbing.co.uk/category/kitchen-sinks)
  - [Kitchen Taps](https://www.tradeonlyplumbing.co.uk/category/kitchen-taps)
  - [Sink Accessories](https://www.tradeonlyplumbing.co.uk/sink-accessories): Waste Disposal Units; Sink Wastes; Sink Traps; Sink & Appliance Fittings
  - [Water Softeners](https://www.tradeonlyplumbing.co.uk/water-softeners): Water Softener Accessories; Drinking Filters
- [Pipe & Fittings](https://www.tradeonlyplumbing.co.uk/category/pipe-fittings)
  - [Copper & Chrome Pipe](https://www.tradeonlyplumbing.co.uk/category/copper-%26-chrome-pipe)
  - [Fittings](https://www.tradeonlyplumbing.co.uk/fittings): Endfeed; Compression; Copper Press Fit; Solder Ring; Chrome Compression; Flexible Connectors; Brass; Olives & Liners; Push Fit Copper; Black Iron
  - [Plastic Pushfit](https://www.tradeonlyplumbing.co.uk/category/plastic-pushfit): Polyplumb; JG Speedfit; Hep2O
  - [MLCP](https://www.tradeonlyplumbing.co.uk/category/mlcp): MLCP Pipe; MLCP Fittings
  - [Valves](https://www.tradeonlyplumbing.co.uk/valves): Isolation Valves; Check Valves & Non Return Valves; Drain Off Valves; Bib Taps; Bypass Valves & PRVs; Relief Valves & Accessories; Thermostatic Mixing Valves; Tundish; Water Meters
  - [Lagging & Insulation](https://www.tradeonlyplumbing.co.uk/category/lagging-%26-insulation)
  - [Gas Accessories](https://www.tradeonlyplumbing.co.uk/gas-accessories): Gas Valves & Fittings; Gas Cooker Fittings & Accessories; Gas Fire Fittings & Accessories; Gas Meter Fittings & Accessories; Flexible Gas Pipe & Fittings
  - [Oil Fittings](https://www.tradeonlyplumbing.co.uk/category/pipe-fittings/oil-fittings)
  - [MDPE Watermain](https://www.tradeonlyplumbing.co.uk/mdpe-watermain): MDPE Pipe; MDPE Fittings
  - [Soil & Drainage](https://www.tradeonlyplumbing.co.uk/soil-drainage): Soil Pipe & Fittings; Drainage Pipe & Fittings
  - [Waste & Overflow](https://www.tradeonlyplumbing.co.uk/waste-overflow): Solvent Waste Pipe & Fittings; Compression Waste & Fittings; Overflow Pipe & Fittings
  - [Traps & Pan Connectors](https://www.tradeonlyplumbing.co.uk/traps-pan-connectors): Traps; Pan Connectors
  - [Guttering & Rainwater Drainage](https://www.tradeonlyplumbing.co.uk/guttering-rainwater-drainage): Half Round Rainwater Systems; Ogee Rainwater Systems; Cast Imitation Rainwater Systems (Plastic)
- [Tools & Consumables](https://www.tradeonlyplumbing.co.uk/category/tools-consumables)
  - [Hand Tools](https://www.tradeonlyplumbing.co.uk/hand-tools): Pressure Testing; Screwdrivers; Wrenches & Spanners; Pliers; Pipe Benders; Pipe Cutting Tools; Hand Saws & Knives; Keys; Measures, Levels & Markers; Drain Cleaning Tools; and more
  - [Soldering, Brazing & Freezing](https://www.tradeonlyplumbing.co.uk/soldering-brazing-freezing): Brazing Torches & Accessories; Soldering & Heat Mats; Pipe Freezing
  - [Power Tools & Accessories](https://www.tradeonlyplumbing.co.uk/power-tools-accessories): Power Tools; Holesaws & Accessories; Drill Bits; Cutting Discs; Jigsaw & Multitool Blades
  - [Press-fit Tools](https://www.tradeonlyplumbing.co.uk/tools-consumables/press-fit-tools): Press-fit Machines; Press-fit Accessories
  - [Powerflush Units & Accessories](https://www.tradeonlyplumbing.co.uk/powerflush-units-accessories): Powerflushing Units; Powerflushing Accessories
  - [Gas Servicing & Accessories](https://www.tradeonlyplumbing.co.uk/gas-servicing-accessories): Gas Testing; Labels, Report Pads, Notification Stickers; Gas Servicing Sprays; Gas Servicing Accessories
  - [Consumables](https://www.tradeonlyplumbing.co.uk/category/consumables): Mortar & Plaster; Sealants; Fluxes & Brushes; Lubricants; Adhesives; Jointing Compounds; PTFE & Hemp; Abrasives; Pipe Cleaning & Clearing; Foam & Fillers; and more
  - [Sundries](https://www.tradeonlyplumbing.co.uk/sundries): PPE; Hand & Surface Cleaning; Floor Protection; Tubs & Buckets
  - [Workwear](https://www.tradeonlyplumbing.co.uk/workwear): Clothing; Boots; Workwear Accessories
  - [Storage & Security](https://www.tradeonlyplumbing.co.uk/storage-security): Tool Bags; Tool Boxes; Van Security
  - [Lighting](https://www.tradeonlyplumbing.co.uk/lighting): Work Lights; Torches & Batteries
  - [Screws & Fixings](https://www.tradeonlyplumbing.co.uk/screws-fixings): Plastic Pipe Clips; Screws & Plasterboard Fixings; Metal Pipe Clips; Pipe Covers & Trunking; Hose Clips; Access Panels
  - [Problem Solving](https://www.tradeonlyplumbing.co.uk/problem-solving): Repair Kit Boxes; Washers
  - [Rubble Bags](https://www.tradeonlyplumbing.co.uk/category/rubble-bags)
- [Electrical](https://www.tradeonlyplumbing.co.uk/category/electrical)
  - [Cable](https://www.tradeonlyplumbing.co.uk/category/cable)
  - [Electrical Fittings & Accessories](https://www.tradeonlyplumbing.co.uk/electrical-fittings-accessories): Electrical Fittings; Electrical Tapes; Access Panels; Electrical Accessories
  - [Fans](https://www.tradeonlyplumbing.co.uk/fans): Fan Heaters; Extractor Fans; Ducting Kits
- [Latest Offers](https://www.tradeonlyplumbing.co.uk/category/latest-offers-all)

## Buying from Williams

- [About us](https://www.tradeonlyplumbing.co.uk/about-us)
- [Create an account](https://www.tradeonlyplumbing.co.uk/register)
- [Trade policy](https://www.tradeonlyplumbing.co.uk/trade-policy)
- [Trade Support Team](https://www.tradeonlyplumbing.co.uk/trade-support-team)
- [Branches](https://www.tradeonlyplumbing.co.uk/branches)
- [Click and collect](https://www.tradeonlyplumbing.co.uk/click-and-collect)
- [Delivery](https://www.tradeonlyplumbing.co.uk/delivery-policy)
- [Returns policy](https://www.tradeonlyplumbing.co.uk/returns-policy)
- [Guarantee](https://www.tradeonlyplumbing.co.uk/guarantee)
- [Contact us](https://www.tradeonlyplumbing.co.uk/contact-us)

## Optional

- [HTML sitemap](https://www.tradeonlyplumbing.co.uk/sitemap)
- [Advice and articles](https://www.tradeonlyplumbing.co.uk/blog)
- [Terms and conditions](https://www.tradeonlyplumbing.co.uk/terms-conditions)