HEATSOURCE BOILERS LTD
Company number 04648678 · Active · Winchester SO21 3RY
HEATSOURCE BOILERS LTD is an active private limited company (company number 04648678) incorporated on 27 January 2003, registered in Winchester. Its registered activity is plumbing, heat and air-conditioning installation (SIC 43220). Latest micro accounts cover the period ending 30 September 2025, showing net assets of £19k, with 3 employees on average. As micro-entity accounts, no profit and loss account is filed, so turnover and profit are not public. Net assets fell 25% on the prior period (£25k).
By net assets it sits in the upper half of 339 comparable companies in Southampton (median £5,929, upper quartile £30k).
Key dates
- Incorporated
- 27 January 2003
- Next accounts due
- 30 June 2027 — in 251 days
- Confirmation statement due
- 10 February 2027 — in 111 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
- Micro Entity
- Size band
- Micro (Companies Act thresholds)
Financials — 2 periods on record, latest ending 30 September 2025
| Period end | Net assets | Cash | Debtors | Creditors <1y | Turnover | Profit | Employees |
|---|---|---|---|---|---|---|---|
| 30 September 2025 | £19k | — | — | — | — | — | 3 |
| 30 September 2024 | £25k | — | — | — | — | — | 3 |
Figures as filed in iXBRL accounts at Companies House. "—" means the line was not reported in that filing; micro-entity accounts contain no profit and loss account.
Firmoscan score: 60/100 (grade C)
- +10 Positive net assets — Net assets £18,647 at 2025-09-30
- -8 Net assets falling — -25.2% vs prior period
- +8 Established — Incorporated 2003-01-27 (24 years)
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 John Henry Horobin — owns 25–50% of shares; holds 25–50% of voting rights · since 6 April 2016
- Mrs Penelope Louise Horobin — owns 25–50% of shares; holds 25–50% of voting rights · since 28 February 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 Southampton
Same activity (plumbing, heat and air-conditioning installation), closest in incorporation date.
- SMR GAS AND OIL LIMITED — Lymington, inc. Feb 2003
- COLD AIR LIMITED — Eastleigh, inc. Jan 2003
- BARRY FRAMPTON LIMITED — Lymington, inc. Feb 2003
- WATERSIDE PLUMBING AND HEATING LIMITED — Southampton, inc. Feb 2003
- S J KING PLUMBING AND HEATING LIMITED — Winchester, inc. Mar 2003
- WELLAND VALLEY GAS SERVICES LIMITED — Southampton, inc. Dec 2002
All companies incorporated on 27 January 2003 · in Jan 2003.
Reminders for HEATSOURCE BOILERS LTD
Get an email before each filing deadline — accounts and confirmation statement — so nothing is late.