Symonis DPFBRENT CROSS · NW9

Mon–Fri 9:00–17:30

07973 102966
A blocked DPF inside the Symonis wash rig at Brent Cross

DPF Cleaning Cost — London

Fixed prices: £69 · £180 · £250. Agreed before any work.

  • Every price on this page, in writing, up front
  • Diagnostic first — you only pay for the fix you need
  • A fraction of the £1,000+ a new DPF costs

No call-out fees, no “once we opened it up” extras. The quote is the bill.

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The three prices, in full

DPF cleaning cost depends on one thing: how deep the fix needs to go. Here’s the honest ladder — each step does more and lasts longer.

Regen clean

from £69

  • Diagnostic scan + DPF regeneration
  • Clears soot — usually while you wait
  • Ash stays in the filter
  • Only possible if no other faults stored
Soot only Temporary

In-situ deep clean

from £180

  • Cleaning solution through the filter, on the car
  • Deeper than a regen
  • DPF not removed, so ash remains
  • Warranty up to 6 months / 6,000 miles
Ash remains

Prices are “from”: the exact fixed quote depends on your vehicle, and it’s agreed with you before any work starts. Bringing just the unit (already off the car)? You pay less — no removal or refit labour.

What decides your exact quote

  1. Your vehicle

    DPF size and access vary: a Fiesta filter and a Transit filter are different jobs. Bigger unit, more wash cycles, more labour to remove and refit — that’s the honest reason van prices sit above car prices.

  2. What the scan finds

    The diagnostic comes first. If the real fault is a £40 pressure sensor, you pay for a sensor — not a clean you didn’t need. If the filter’s blocked with soot only, a regen or in-situ clean may genuinely be enough.

  3. How blocked it is

    Years of ash needs the off-car wash — nothing cheaper removes it. Caught early, the cheaper rungs of the ladder work. The readings decide, and you see them.

Cleaning cost vs a new DPF

The quote you’re comparing us against is probably a replacement. Here’s that comparison, straight.

Off-car refurbishment — us

  • Typical costfrom £250
  • Filter afterAs-new flow, proven
  • Soot & ashBoth removed
  • WarrantyUp to 30 mo / 40,000 mi
  • TurnaroundUsually same or next day

New DPF at a dealer

  • Typical cost£1,000–£3,500 fitted
  • Filter afterNew
  • Underlying fault foundOften not — so it re-blocks
  • WarrantyParts warranty only
  • TurnaroundDays, if the part’s in stock

If your filter is genuinely beyond saving — cracked or melted core — we show you the evidence and tell you before you spend anything. That’s the point of the diagnostic-first rule.

Why quotes differ so much

£100 “cleans” and £3,000 replacements are answering different questions

Ring five garages about a blocked DPF and you’ll hear five numbers. The cheap end is usually a mobile van’s foam clean — soot shifted, ash untouched, honest guide here. The expensive end is a dealer who only fits new parts. The middle — an off-car refurbishment with the ash actually removed and a flow-test to prove it — is the one that fixes the filter for years, and it costs from £250, not £1,000+.

Cost questions, answered straight

How much does DPF cleaning cost in the UK?

Across the UK you’ll see anything from ~£85 mobile foam cleans to £400+ specialist washes, before the £1,000+ replacement quotes. At Symonis it’s three fixed prices: DPF regeneration from £69, in-situ deep clean from £180, and the full off-car refurbishment from £250. The diagnostic tells us — and you — which one your car actually needs.

Is it cheaper to clean a DPF or replace it?

Cleaning, by a wide margin. A refurbished filter flows like a new one for roughly a quarter of the cost of a dealer replacement. The only time replacement is the right answer is physical damage — a cracked or melted core — and if we find that, you’ll see the evidence before spending anything.

Are there any extras on top of the price?

No. The price is fixed and agreed with you after the diagnostic and before any work starts. No call-out fee, no “we found something once it was open” surprises — if the scan changes the picture, we call you first.

How much is DPF cleaning for a van?

Vans start a little above car prices because the filters are bigger and take longer to remove, wash and refit. Call with the make and model and you’ll get the exact fixed number on the phone. Running several vans? There’s a trade service with drop-off pricing.

Why is a £90 mobile clean cheaper than your refurb?

Because it does less. Foam through a pipe shifts some soot and leaves the ash — the thing actually killing the filter. It’s cheap the first time; it stops being cheap the third time. We wrote the honest guide on exactly this.

What does a DPF regeneration cost?

From £69 including the diagnostic scan, usually while you wait. It’s the right fix when the filter is soot-loaded but healthy and no other faults are stored — and if the scan says it won’t work, we tell you before you pay for it.

How do I pay?

Card, bank transfer or cash, when the work’s done. The price you pay is the price we agreed — that’s the whole point of fixed quotes.

Get the exact number in one call.

Make, model, symptoms — we’ll give you the fixed price on the phone. Brent Cross NW9, drive in weekdays.