A pipe wrench is one of those tools you buy once and curse forever if you buy wrong. Get a good one and it bites galvanised, gas barrel and old iron without slipping, takes a beating in the bottom of the bag and is still going in twenty years. Buy a cheap casting and the jaws round off, the nut seizes, and you end up rounding a fitting at the worst possible moment — usually with water coming out of it.
This guide is for UK plumbers, heating engineers and gas fitters who actually turn iron, not for someone tightening one compression fitting a year. We have split the picks by how they get used on site: heavy straight wrenches for daily iron and steel work, traditional Stillsons for all-round grip, and budget options for the spare that lives in the van. Everything here is available from UK suppliers in 2026 — Screwfix, Toolstation, plumbing merchants and Amazon UK. Prices are approximate UK street prices and move with stock and promotions, so treat them as a guide rather than a quote.
Our quick verdict
If you want a one-line answer: a Ridgid heavy-duty straight wrench is the tool most professional plumbers and heating engineers reach for first, and it is the one we would tell a first-year apprentice to save up for rather than buy twice. The cast-iron 14-inch covers the bulk of domestic and light commercial iron work, the jaws are replaceable, and a Ridgid will outlast almost everything else in the bag.
If you want the same grip with less weight, the Ridgid aluminium 814 does the same job with a fraction of the heft, which matters when you are carrying a full set up three flights. For all-round value the Bahco 361 Stillson is the sensible middle ground — proper forged steel, self-clamping jaws and a price that does not make you wince. And if you just need a spare or an occasional-use wrench, a Footprint or even a Silverline will see you through, as long as you know its limits.
How to choose a pipe wrench
Straight vs Stillson vs offset
A straight pipe wrench is the workhorse: a fixed lower jaw, an adjustable upper hook jaw, and a heel that lets it bite harder the more you pull. A Stillson is technically a style of straight wrench too, but the term is usually used for the traditional forged pattern with a knurled adjusting nut — Bahco and Footprint are the names you will hear on UK sites. For tight spots against a wall or behind a cylinder, an offset or corner wrench earns its place, but most trades only carry one once they have the straights covered.
Size and reach
Buy by the job, not by the box. A 14-inch wrench handles most domestic pipework up to around 2 inches and is the single most useful size to own. Step up to an 18-inch or 24-inch for heavier heating and commercial iron, and keep a 10 or 12-inch in the bag for tight, low-torque work where a big wrench will not fit. Two wrenches of the same size are also worth owning — you often need one to hold and one to turn, the classic back-up wrench technique that stops you twisting a run of pipe out of its fittings.
Jaw material and replaceability
This is where the money goes. Cheap wrenches use soft cast jaws that round off and cannot be replaced, so the whole tool becomes scrap. Quality wrenches use hardened, replaceable jaws and a replaceable hook and pin — a Ridgid will take a new set of teeth for a few pounds rather than a new wrench. If a wrench does not offer spare parts, treat it as disposable and price it accordingly.
The best pipe wrenches at a glance
| Model | Type | Best for | Approx. price |
| Ridgid 14″ Heavy-Duty (cast iron) | Straight, cast iron | Daily heavy plumbing and heating work | £55–70 |
| Ridgid 814 14″ Aluminium | Straight, aluminium | Reducing weight in the bag without losing grip | £75–95 |
| Bahco 361-18 Stillson | Self-clamping Stillson | All-round trade use, one-handed grip | £35–45 |
| Footprint 698 18″ | Traditional Stillson | Sheffield-made value, occasional heavy use | £25–35 |
| Stanley FatMax 14″ | Straight | General maintenance and lighter duty | £20–28 |
| Silverline 14″ | Straight, budget | Spare in the van or one-off jobs | £10–16 |
Prices are approximate UK street prices for 2026 and vary by retailer, size and promotion.
The picks in detail
Best overall — Ridgid 14″ Heavy-Duty straight wrench
There is a reason Ridgid is the wrench you see in nearly every serious plumber’s bag. The cast-iron heavy-duty pattern has the cleanest, hardest bite of anything at the price, the floating hook jaw self-tightens under load without snatching, and every wear part is replaceable. The 14-inch is the sweet spot for domestic and light commercial work; if you only buy one pipe wrench in your career, buy this one. It is heavier than the budget options and it costs more, but on a per-year-of-service basis it is the cheapest wrench on this list.
Best lightweight — Ridgid 814 14″ Aluminium
Same Ridgid jaws and self-tightening action, roughly 40% lighter thanks to the aluminium handle and body. If you carry a full set of wrenches between jobs, or you spend the day on commercial heating with a wrench in each hand, the weight saving is the difference between aching forearms and not. It costs more than the cast-iron version and the body is a little less forgiving of being used as a hammer, but for working plumbers who value their backs it is worth the premium.
Best value Stillson — Bahco 361-18
Bahco’s 361 is a proper forged-steel Stillson with self-clamping jaws and a corrosion-treated body, and it lands at a price that makes it the obvious all-rounder. The 18-inch gives you more reach and leverage than a 14, which suits heating engineers turning bigger iron, while the one-handed clamping action is genuinely useful when your other hand is holding the fitting. It is not quite as refined as a Ridgid and the jaws are not as readily replaceable, but for most trades it is all the wrench they will ever need.
Best budget that is still worth owning — Footprint 698
Footprint is a Sheffield name with genuine heritage, and the 698 traditional pattern gives you a forged wrench for the price of a cheap casting. It will not take the daily punishment a Ridgid shrugs off, but for second-fix plumbing, occasional iron and the wrench you lend to the labourer, it punches well above its money. Buy it knowing what it is — a solid value tool, not a lifetime professional wrench — and you will not be disappointed.
Best spare — Silverline 14″
Every van needs a wrench you will not cry over if it walks off site or gets left in a customer’s loft. The Silverline 14-inch is that wrench. The jaws are soft and the finish is basic, but for low-torque, occasional work it does the job at pocket-money money. Do not reach for it on seized galvanised or you will round the fitting — keep it for the easy stuff and let your good wrench do the work that matters.
Pipe wrench vs water pump pliers
A common question from apprentices: why not just use water pump pliers, like Knipex Cobra, for everything? Pliers are brilliant for chrome, fittings with flats and anywhere you do not want to mark the surface, and a good pair of Cobras lives in most plumbers’ bags permanently. But on round iron and steel under real torque, a pipe wrench wins every time — the toothed jaws and self-tightening heel give a bite pliers cannot match, and you keep both the leverage and the control. The honest answer is you carry both: pliers for the quick stuff, a pipe wrench for the iron.
Looking after your wrench
A pipe wrench is low-maintenance, but a few habits make it last. Keep the adjusting nut and the spring clean and lightly oiled so the jaw moves freely — a seized nut is the most common reason a good wrench feels worn out. Wire-brush the teeth if they pack with rust or thread compound, because clogged teeth slip. And resist using the wrench as a hammer or a breaker bar; the handle is cast to grip, not to take side loads, and that is how cheap wrenches crack. Replace the hook jaw and pin when the teeth round rather than buying a new tool — on a Ridgid that is a few minutes and a few pounds.
Frequently asked questions
What size pipe wrench do I actually need?
For most UK domestic plumbing and heating, a 14-inch wrench is the single most useful size and the one to buy first. Add an 18 or 24-inch for heavier iron and commercial work, and a 10 or 12-inch for tight, low-torque spots. Owning two of the same size is genuinely useful for the hold-and-turn technique that stops you twisting pipe runs.
Are expensive pipe wrenches worth it?
For anyone using one regularly, yes. A Ridgid or Bahco costs more up front but the jaws are harder, the bite is cleaner and the wear parts are replaceable, so the tool lasts years rather than months. If you only need a wrench occasionally, a Footprint or Silverline is perfectly sensible — just know it will not take daily abuse.
Can a pipe wrench damage the fitting?
It can, and that is the point — the toothed jaws are designed to bite into round iron and steel, which marks the surface. Use a pipe wrench on pipe and gas barrel, not on chrome, plated or finished fittings where the marks will show. For those, reach for water pump pliers or a strap wrench instead.
What is the difference between a Stillson and a pipe wrench?
A Stillson is a specific traditional pattern of pipe wrench — the original design with a forged frame and a knurled adjusting nut, named after its inventor. In UK trade use the words are often used interchangeably, but strictly speaking all Stillsons are pipe wrenches while not every modern pipe wrench is a Stillson.
The bottom line
If you turn iron for a living, buy a Ridgid 14-inch and never think about it again — it is the wrench the rest are measured against, and the replaceable jaws mean it is the last one you will buy in that size. Want the same grip with less weight, go for the aluminium 814. For the best balance of price and quality the Bahco 361 Stillson is hard to beat, and for a spare or occasional use a Footprint or Silverline does the job for pennies. Whatever you choose, buy the size the job needs, keep the nut clean, and carry two when you are working iron — one to hold and one to turn.
