MAIN SOURCE HEATING LTD

Company number 15977415 · Active · Caldicot NP26 5JH

Owned by Leighton Brunnock (75–100%)

D
Firmoscan score 39/100
Companies House ↗

MAIN SOURCE HEATING LTD is an active private limited company (company number 15977415) incorporated on 25 September 2024, registered in Caldicot. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest abridged accounts cover the period ending 30 September 2025, showing net assets of −£2,970, with 1 employee on average. As abridged accounts, no profit and loss account is filed, so turnover and profit are not public.

By net assets it sits in the bottom quarter of 510 comparable companies in Cardiff (median £3,182, upper quartile £28k).

Key dates

Incorporated
25 September 2024
Next accounts due
30 June 2027 — in 251 days
Confirmation statement due
9 October 2027 — in 352 days

Due dates are expected from Companies House filing rules; confirm on the official register before relying on them.

Activity

SIC 43220
Plumbing, heat and air-conditioning installation
Accounts type
Unaudited Abridged
Size band
Micro (Companies Act thresholds)

Financials — 1 period on record, latest ending 30 September 2025

Period endNet assetsCashDebtorsCreditors <1yTurnoverProfitEmployees
30 September 2025−£2,970——£2,970——1

Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing.

Firmoscan score: 39/100 (grade D)

A transparent, rules-based score from filed data only: every point lists its evidence. It is not a credit rating or advice.

Ownership and control

  • Mr Leighton Brunnock — owns 75–100% of shares; holds 75–100% of voting rights; can appoint or remove directors · since 25 September 2024

Persons with significant control hold 25% or more of shares or voting rights. Smaller shareholdings are only listed in confirmation-statement documents.

Similar companies in Cardiff

Same activity (plumbing, heat and air-conditioning installation), closest in incorporation date.

All companies incorporated on 25 September 2024 · in Sept 2024.

Reminders for MAIN SOURCE HEATING LTD

Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.