# Mainline Environmental Services LLP

Mainline Environmental Services LLP is an electrician in Welwyn Hertfordshire. Rated 4.9/5 from 40 public reviews across 1 review source. This is the MyTrustedTraders public-evidence profile for this trader, with independent reviews, credentials and registry data from named public sources, no ads, and no paid placement.

No Trust Score yet: not enough public evidence held to score this business.

3 reviews in the last 12 months.

## About
Mainline Environmental Services LLP have been working in the electrical installations sector for over 12 years and carry out all aspects of domestic and...

## Public review evidence (by source)
| Source | Average rating | Reviews |
| --- | --- | --- |
| TrustATrader | 4.9/5 | 40 |

Most recent review: 12 months ago.

## In customers' own words
_Verbatim quotes from this trader's public reviews, each attributed to its source:_
> "Amazing job completed. Worked to a very high standard doing 2 x HMO properties."
> Source: Beant Singh (5.0, via TrustATrader)

> "I would highly recommend Lee. He did all the work to a great standard and was all finished really quickly! I’m very happy with all the works he’s done."
> Source: Jordan (5.0, via TrustATrader)

> "We had the pleasure of working with Lee who was friendly, knowledgeable and very reasonably priced. I will continue to use Lee for all electrical works in the future and will happily refer to friends & family."
> Source: Kelly (5.0, via TrustATrader)

## Trades
Electrician, Bathroom Fitter

## What we checked, and when
_What MyTrustedTraders independently checked for this business (verified items only):_
- Review volume: MyTrustedTraders shows 40 public reviews on this profile. (via MyTrustedTraders public listing)
- Public listing spread: MyTrustedTraders shows 1 public listing for this trader. (via MyTrustedTraders public listing)
- Business identity: MyTrustedTraders shows public business identity data with operating status unknown. (via MyTrustedTraders public listing)
- Contact phone: MyTrustedTraders shows a public phone contact on this profile. (via MyTrustedTraders public listing)
- Website: MyTrustedTraders shows a public website for this trader. (via MyTrustedTraders public listing)

Full verification checklist: https://mytrustedtraders.com/traders/mainline-environmental-services-llp/checks

## Credentials & sources
- Credentials shown: 1 (none currently verifiable)
- Companies House status: Unknown
- Website online since 2000 (verified via public domain registry)
- Evidence held from: TrustATrader
- Public evidence last checked May 2026

## Before you hire an electrician
_What to check when choosing this kind of trade (general guidance, not a claim about this business):_
- In England and Wales, notifiable electrical work (new circuits, a consumer unit, anything in a bathroom or kitchen) must by law be signed off under Part P of the Building Regulations. Confirm they will handle that.
- Prefer an electrician registered with a government-approved competent-person scheme (NICEIC, NAPIT or ELECSA) so they can self-certify the work meets the wiring regulations.
- Insist on the Electrical Installation Certificate (or Minor Works Certificate) when the job is done. It is your proof the work is safe and compliant, and you will need it if you ever sell.
- 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.

## Contact
- Phone: 07307 206440
- Website: https://www.mainlineelectrical.co.uk

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Source: MyTrustedTraders, https://mytrustedtraders.com/traders/mainline-environmental-services-llp
Real public evidence only: every figure traces to its named source. The evidence for this business comes from a single public source, so it is not yet cross-checked against a second. If a source does not carry a field, it is not shown.