Gas Engineer

Call Si Ltd

London5.0· 65 reviews · 3 sources
Companies House
Active incorporated business
Trust score
86out of 100
Rating5.0★
Review volume65
Source diversity3 sources
VerificationListed

Based on rating, review volume, independent sources and verification. Evidence context — not a guarantee of workmanship.

Trust at a glance

What we can verify about Call Si Ltd

1 check

Each card summarises one evidence dimension from public sources — open it for the full detail and named source. This is evidence context, not a guarantee.

See the full verification checklist for Call Si Ltd
Reviews · public evidence

What customers say

5.0out of 5
65 reviews in public evidenceCross-checked across 1 source
Checkatrade65 reviews · 5.0 avg

Highlights

"Si was perfect. Good communication and went the extra mile to complete the work to a very high standard."

Rob SCheckatrade5.0 rating

"Highly recommend if you want your plumbing fixed with skill! Si was super efficient, clearly knows his stuff, zero stress, rating 10/10. I am grateful and kinda hoping something else breaks so I have an excuse to call again."

AnonymousCheckatrade5.0 rating

"Si was great to have for the job - he came round and inspected the work to be done without charge, then got me booked in quickly and stuck to that date and time. The work was carried out as expected and he left everything clean and tidy, and also talked through with me what he was doing."

AnonymousCheckatrade5.0 rating

Detailed reviews

Rob S5.0 / 5 ·

Si was perfect. Good communication and went the extra mile to complete the work to a very high standard.

Checkatrade
Anonymous5.0 / 5 ·

Highly recommend if you want your plumbing fixed with skill! Si was super efficient, clearly knows his stuff, zero stress, rating 10/10. I am grateful and kinda hoping something else breaks so I have an excuse to call again.

Checkatrade
Anonymous5.0 / 5 ·

Si was great to have for the job - he came round and inspected the work to be done without charge, then got me booked in quickly and stuck to that date and time. The work was carried out as expected and he left everything clean and tidy, and also talked through with me what he was doing.

Checkatrade
Page 1 of 4
Local context

Rated 5.0★ — above the local average for gas engineers in LONDON

Across 286 rated gas engineers in LONDON, the typical rating is 4.9★. We compare against the same businesses a homeowner would find searching for this trade locally.

About

Verified central heating in LONDON, London.

Companies House registration

Active incorporated business

Active

Call Si Ltd is linked to a Companies House entry. This shows the business registration, not evidence of workmanship or service quality.

Legal nameCall Si Ltd
Company number13826835
Incorporated
Registered activityPlumbing & heating installation
Official checkListed
Open Companies House entry (opens in new tab)
Public evidence checks

Trust checks and red flags

Public evidence shown
Public review evidence5.0★ from 65 public reviewsAcross CheckatradeCheckatradeCompanies HouseCompanies House Officers
Sources

Every signal, traced to its origin

3 named sources
Verify at the sourceCheck them yourself

Gas work is restricted by law to Gas Safe registered engineers. If they'll touch a boiler or any gas appliance, confirm they're currently on the register before you hire - it's free and takes a minute.

Check the Gas Safe Register
Independent checks

About this business

A real, registered businessWe cross-checked Companies House: this business is officially registered for work that matches the gas engineer services it advertises - independent confirmation it's a genuine business set up to do this kind of work, not just a directory entry.
Public evidence checks

What's strong, and what to check yourself

Strong signals
Rating: 5.0★
Review volume: 65
Source diversity: 3 sources
!Worth checking yourself
!Verification: Listed
Smart checks

Before you hire a gas engineer

By law, anyone working on your gas appliances must be on the Gas Safe Register — ask to see their Gas Safe ID card and check the licence number at gassaferegister.co.uk before they start.
Never let an unregistered person touch your gas: unsafe gas work risks carbon monoxide poisoning, fire and explosion, and is a criminal offence.
For a boiler or appliance install, get the work and price in writing and keep the Gas Safe / Building Regulations certificate they are required to give you.
Confirm they cover your area and can actually come out in your timeframe before anything else.
Read recent reviews for reliability and turning up on time — not only the quality of the work.
Good to know

Common questions about Call Si Ltd

What do customers say about Call Si Ltd?

Call Si Ltd has 65 public reviews, averaging 5 out of 5, gathered across 3 independent sources. You can read the individual reviews and where each came from in the reviews section above.

How do I know Call Si Ltd's reviews are genuine?

Call Si Ltd's 65 public reviews are gathered and cross-checked across 3 independent public sources. Reviews spread across several named sources are harder to fake than a single polished page. MyTrustedTraders brings this public evidence together with no ads and no paid placement: we show where every review came from rather than selling rankings, so you can weigh the evidence for yourself.

Is Call Si Ltd a registered business?

Call Si Ltd is a registered business on Companies House (company number 13826835), incorporated 4 Jan 2022, listed as active. This confirms the legal registration of the business — not evidence of workmanship or service quality.

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