# Mark Granville Plumbing & Heating

Mark Granville Plumbing & Heating is a bathroom fitter in London. Rated 5.0/5 from 3 public reviews across 1 review source. This is the MyTrustedTraders public-evidence profile — independent reviews, credentials and registry data from named public sources, with no ads and no paid placement.

Trust score: 47/100

## About
Plumber in London.

## Public review evidence (by source)
| Source | Average rating | Reviews |
| --- | --- | --- |
| Checkatrade | 5.0/5 | 3 |

_Per-source review counts may overlap — they need not sum to the 3 cross-checked total above._

Rated 5.0★ — above the local average for bathroom fitters in London. Across 364 bathroom fitters in London, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.

Most recent review: 2 years ago.

## In customers' own words
_Verbatim quotes from this trader's public reviews, each attributed to its source:_
> "Mark was very responsive right from the initial phone call, and he carried out the work very efficiently. We had a leak in our upstairs bathroom, which was difficult to access. The issue was fixed rapidly and in a tidy manner. Highly recommended."
> — Anonymous (5.0, via Checkatrade)

> "I recently had Mark in to do a couple of jobs. He is incredibly reliable and trustworthy, always on time and completes the jobs without having to come back another day. He makes sure he has everything he needs by constantly staying in touch via WhatsApp and planning ahead. His experience and expertise are a great asset. Always giving helpful suggestions to help avoid any further problem later down the line. I cannot recommend Mark enough and would not hesitate to call him again for any future jobs."
> — Anonymous (5.0, via Checkatrade)

> "Mark arrived really promptly, within 30 mins of my call. Quickly got to work and we were all fixed within another 30 mins. Super polite and friendly. We'll definitely be keeping Mark's number to hand for our next plumbing job. Thank you Mark for saving the day!"
> — Anonymous (5.0, via Checkatrade)

## Trades
Bathroom fitter, Plumber

## See their work
_The trader's own portfolio — galleries and visual-work profiles they publish (real work to view, not a self-claim):_
- [Instagram](https://www.instagram.com/trustmarkuk)
- [Facebook](https://www.facebook.com/TrustMarkUK)

## Independent verification
_What MyTrustedTraders independently checked for this business (verified items only):_
- Review volume: MTT is showing 3 public reviews on this profile. (via MyTrustedTraders public listing)
- Public listing spread: MTT is showing 1 public listing for this trader. (via MyTrustedTraders public listing)
- Business identity: MTT is showing public business identity data with operating status unknown. (via MyTrustedTraders public listing)
- Website: MTT is showing a public website for this trader. (via MyTrustedTraders public listing)

Full verification checklist: https://mytrustedtraders.com/traders/mark-granville-plumbing-heating/checks

## Credentials & sources
- Credentials shown: 0
- Companies House status: unknown
- Website online since 1999 (verified via public domain registry)
- Evidence held from: Checkatrade
- Public evidence last checked May 2026

## Before you hire a bathroom fitter
_What to check when choosing this kind of trade — general guidance, not a claim about this business:_
- Ask to see a portfolio of completed work like yours, plus recent references you can contact.
- Check the credentials and registrations that matter for this work — and that they are current.
- Get a written, itemised quote with scope, assumptions and a staged payment schedule.
- Compare at least three bathroom fitters on the depth of their evidence, not just price.

## Contact
- Website: https://www.trustmark.org.uk/homeowner/find-a-tradesperson

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Source: MyTrustedTraders — https://mytrustedtraders.com/traders/mark-granville-plumbing-heating
Real public evidence only: every figure traces to a named source and is cross-checked. If a source does not carry a field, it is not shown.