- Companies
- Plumbers and heating engineers
- Londonderry
- FMN Services Limited
FMN Services Limited
- Company number
- NI630201
- Incorporated
- 24 Mar 201511 years trading
- Registered office
- Sentinel House, 13 Pump Street, Londonderry, BT48 6JG
- Nature of business
- Plumbing, heat and air-conditioning installation
FMN Services Limited is a 11-year-old private limited company registered in Londonderry, company number NI630201, one of 26 plumbing and heating companies in Londonderry. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Finances
From each year's balance sheet filed at Companies House. Small companies do not have to publish turnover or profit, so these are balance sheet figures.
- Net assets up £9,165 (+152.5%) on the year before, to £15K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £25K against £11K owed within a year: 2.2 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £15K | £25K | £11K | 2 | |
| 31 Mar 2024 | £6,011 | £13K | £8,828 | 2 | |
| 31 Mar 2023 | £4,188 | £13K | 2 | ||
| 31 Mar 2022 | £3,394 | £13K | £12K | 2 | |
| 31 Mar 2021 | £4,752 | £17K | £16K | 1 | |
| 31 Mar 2020 | £11K | £11K | £5,244 | 1 | |
| 31 Mar 2019 | £3,746 | £248 | £2,363 | ||
| 31 Mar 2018 | £8,598 | £7,769 | £6,497 | ||
| 31 Mar 2017 | £11K | £26K | £21K | ||
| 31 Mar 2016 | £1,393 | £10K | £20K | £19K |
Where FMN Services Limited is registered
The registered office is in Londonderry (BT48), in the Derry City and Strabane local authority area, Northern Ireland. Show BT48 6JG on a map.
Other trade companies in BT48
- Neat & Nurtured Vics Cleaning LimitedCleaning companies
- Ked Brick & Blockwork LtdBuilders
- Zapcars LtdMotor traders
- TMC Electrics LtdElectricians
- Northern Diesels LtdMotor traders
- Coyle Reclamation & Salvage LtdSpecialist contractors
- George MCG Mechanical LtdElectricians
- KK Electrical Solutions Ireland LimitedElectricians
Also registered at this address
3 other companies use the same registered office as FMN Services Limited.
- Dellmont Developments LimitedProperty developers
- George Doherty (Construction) LimitedBuilders
- PSD Construction LimitedSpecialist contractors
What happens if FMN Services Limited files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- NI630201
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 March 2015 (11 years ago)
- Registered office
- Sentinel House, 13 Pump Street, Londonderry, BT48 6JG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 24 March 2026
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Londonderry
Other active plumbing and heating companies registered in Londonderry.
- Foyleside Supplies Limited2012
- G&M Supply & Maintenance Limited2014
- GMC Consultancy Ireland Ltd2023
- GMC Plumbing & Heating Ltd2017
- Jacsi Properties Limited2005
- Josh McCorkell Plumbing and Heating Ltd2024
- Lear Mechanical Services Ltd2013
- M & L Mechanical Engineering Ltd2019
All plumbing and heating companies in Londonderry · All trades in Londonderry · Plumbers and heating engineers across the UK
Frequently asked questions
When are FMN Services Limited's accounts due?
FMN Services Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is FMN Services Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is FMN Services Limited still trading?
FMN Services Limited is listed as active on the Companies House register as of 1 Oct 2026. Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does FMN Services Limited do?
FMN Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is FMN Services Limited?
FMN Services Limited was incorporated on 24 March 2015, 11 years ago.
What is the penalty if FMN Services Limited files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View FMN Services Limited on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.