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Advice & Guides

Expert buying advice, installation guidance, product comparisons and practical information across plumbing, heating, bathrooms, kitchens, electrical and building supplies.

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Row of white panel radiators and a chrome towel rail in a merchant warehouse
Heating

Radiators Buying Guide: How to Choose Radiators for Any Room

Everything you need to compare radiator types, outputs and sizes before you buy — written for installers and homeowners.

3 min read
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Latest advice & guides

26 guides

Row of white panel radiators and a chrome towel rail in a merchant warehouse
Heating

Radiators Buying Guide: How to Choose Radiators for Any Room

Everything you need to compare radiator types, outputs and sizes before you buy — written for installers and homeowners.

3 min read
Read guide
Wall-mounted gas combi boiler with the front casing removed
Heating

Boilers Buying Guide: Combi, System and Regular Compared

How to choose between combi, system and regular boilers — output, hot water demand, fuel type and the parts every swap needs.

3 min read
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Modern bathroom with close coupled toilet, basin and shower bath
Bathrooms

Bathroom Suites Buying Guide: Layouts, Sizes and What to Order

Compare complete, cloakroom and designer bathroom suites, plan the layout properly, and order everything the fit needs first time.

3 min read
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Traditional column radiator fitted against a plastered wall
Heating

How to Size a Radiator: BTU Calculations Made Simple

A step-by-step method for working out the BTU output a room needs, and how to turn that figure into a radiator height and width.

3 min read
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Wall-mounted gas combi boiler with the front casing fitted
Heating

Boiler Efficiency Explained: ErP Ratings and Running Costs

What ErP ratings mean in practice, why flow temperature matters more than the label, and how to keep a condensing boiler efficient.

3 min read
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Air source heat pump unit installed on a paved base beside a house wall
Renewables

Air Source Heat Pumps Explained: Sizing, Radiators and Cylinders

How air source heat pumps work in practice, why low flow temperatures change radiator sizing, and what a retrofit involves.

2 min read
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Grey plastic soil pipe and waste fittings stacked ready for installation
Drainage

Soil and Waste Pipe Sizes Explained

Which waste pipe size each appliance needs, how soil stacks and traps work together, and the falls to aim for.

2 min read
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Insulation boards and rolls stacked on a building site
Building Materials

Insulation Types and U-Values Explained

U-values, lambda ratings and the practical differences between loft, cavity, PIR board and acoustic insulation.

2 min read
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Plumber's tool bag with wrenches, pipe cutters and hand tools laid out
Tools

Essential Tools for a Plumbing Tool Kit

What belongs in a genuine plumbing tool kit, from grips and pipe cutters to jointing compound, and which specialist tools are worth adding later.

5 min read
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Thermostatic radiator valve head fitted to a white panel radiator
Heating

Thermostatic Radiator Valves Explained

What a thermostatic radiator valve does, what the numbers on the dial mean, where TRVs should and shouldn't be fitted, and how smart TRVs differ.

6 min read
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Freestanding roll-top bath positioned in a bathroom with a built-in bath panel visible in comparison shot
Bathrooms

Freestanding vs Built-In Baths

Weigh up freestanding and built-in baths on space, installation, floor loading, tap options and how practical each is with a shower over.

5 min read
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Brushed steel double socket fitted on a painted wall
Electrical

A Homeowner's Guide to Switches and Sockets

An overview of switch and socket styles, finishes and features to help you choose the right look and specification for each room.

4 min read
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Materials list and site drawings laid out on a table alongside a laptop
Trade Advice

How to Prepare a Materials List for a Project Quote

A clear, well-structured materials list gets a faster, more accurate quote. Here's what to include and a worked example.

6 min read
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Row of domestic boilers displayed in a showroom setting
Heating

What Size Boiler Do I Need?

A general guide to how boiler size (kW) relates to bathrooms, radiator count and hot water demand — and why a proper heat-loss calculation is the right basis for a final spec.

5 min read
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Chrome basin mixer tap fitted to a countertop basin
Bathrooms

Bathroom Taps Buying Guide

Choose the right basin, bath and shower taps for your bathroom, with guidance on water pressure, tap holes, finishes and waste compatibility.

4 min read
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Various brass plumbing valves including isolation and ball valves
Plumbing

A Guide to Plumbing Valves

A plain-English rundown of the plumbing valves you'll come across on a typical domestic system, and what each one does.

4 min read
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Tradesperson checking a delivery of plumbing materials against an order
Trade Advice

How a Trade Account Can Simplify Material Purchasing

What a Plumb Supply trade account actually gives you, from trade pricing and quotes to order history and team access.

4 min read
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Assorted copper and plastic pipe of different diameters
Plumbing

Plumbing Pipe Sizes Explained

What the common UK pipe sizes are used for, plus the difference between metric and older imperial pipework.

4 min read
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Modern white combi boiler mounted on a kitchen wall
Heating

Combi Boilers Explained: A Buyer's Guide

What a combi boiler is, how it compares with system and regular boilers, and the practical points to weigh up before choosing one.

5 min read
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Modern thermostatic mixer shower fitted in a tiled shower enclosure
Bathrooms

How to Choose a Shower

Work out which type of shower suits your home's water system, pressure and household needs, from electric to digital showers.

5 min read
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Stainless steel kitchen sink with a mono mixer tap set into a worktop
Kitchens

How to Choose a Kitchen Sink and Tap

A practical comparison of sink materials, bowl configurations, installation types and tap styles so the sink and tap you choose actually fit your worktop.

5 min read
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Copper pipe and coiled plastic barrier pipe laid side by side
Plumbing

Copper Pipe vs Plastic Pipe: Which Is Best?

A practical comparison of copper and plastic pipe covering cost, durability, installation and where each performs best.

4 min read
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Close-up of a double panel double convector radiator against a wall
Heating

Type 11 vs Type 21 vs Type 22 Radiators Explained

A plain-English guide to panel radiator type numbers — what Type 11, 21 and 22 mean, and how output and depth compare.

5 min read
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Close-up of push-fit and compression plumbing fittings on copper and plastic pipe
Plumbing

Push-Fit vs Compression Fittings: Which Should You Use?

How push-fit and compression fittings differ, and how to decide which is the right choice for a given job.

4 min read
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Bathroom mid-renovation showing tiling and new sanitaryware being fitted
Bathrooms

How to Plan a Bathroom Renovation

Plan your bathroom renovation properly: measuring, layout, plumbing runs, sanitaryware choices, ventilation and the order trades should work in.

5 min read
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White double panel radiator fitted below a window in a modern room
Heating

How to Choose the Right Radiator for Your Room

Understand radiator types, sizing, heat output and the differences between panel, column and designer radiators.

4 min read
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