- Companies
- Plumbers and heating engineers
- Craigavon
- S M P Mechanical Ltd
S M P Mechanical Ltd
- Company number
- NI664319
- Incorporated
- 11 Sep 20197 years trading
- Registered office
- 18 Lawrencevale, Laurencetown, Craigavon, BT63 6EN
- Nature of business
- Plumbing, heat and air-conditioning installation
S M P Mechanical Ltd is a 7-year-old private limited company registered in Craigavon, company number NI664319, one of 25 plumbing and heating companies in Craigavon. Its next accounts are due at Companies House on 10 December 2026, and the CT600 for the period to 10 March 2026 is due at HMRC on 10 March 2027.
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 £1,146 (+4.5%) on the year before, to £27K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 10 Mar 2025 | £27K | £141 | 1 | ||
| 10 Mar 2024 | £25K | £1,287 | £0 | 1 | |
| 10 Mar 2023 | £21K | £10K | £4,554 | 2 | |
| 10 Mar 2022 | £19K | £14K | £11K | 2 | |
| 10 Mar 2021 | £2,547 | £43K | £17K | 2 |
Where S M P Mechanical Ltd is registered
The registered office is in Craigavon (BT63), in the Armagh City, Banbridge and Craigavon local authority area, Northern Ireland. Show BT63 6EN on a map.
Other trade companies in BT63
- Johnston Group Holdings LimitedMotor traders
- Lunamaxtiling LimitedBuilders
- Renovation Squad LtdSpecialist contractors
- Parkstown Developments LtdInstallers
- New Leaf Tree Services LtdLandscapers and gardeners
- Sustar Developments No2 LtdProperty developers
- Nivs (Craigavon) LimitedMotor traders
- Darren Vogan LtdPlumbers and heating engineers
What happens if S M P Mechanical Ltd 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 10 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 11 Dec 2026 to 10 Jan 2027 | £150 |
| 1 to 3 months late | 11 Jan 2027 to 10 Mar 2027 | £375 |
| 3 to 6 months late | 11 Mar 2027 to 10 Jun 2027 | £750 |
| More than 6 months late | From 11 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 11 Mar 2027 | £200 |
| 3 months late | 10 Jun 2027 | another £200 |
| 6 months late | 10 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 10 Mar 2028 | 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
- NI664319
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 September 2019 (7 years ago)
- Registered office
- 18 Lawrencevale, Laurencetown, Craigavon, BT63 6EN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 10 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 10 March 2025
- Last confirmation statement
- 10 September 2025
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 Craigavon
Other active plumbing and heating companies registered in Craigavon.
- SSS Alleviate Ltd2022
- Sure Safe Boilers Ltd2023
- Team Mechanical Ltd2010
- B Jones Plumbing and Heating Ltd2017
- Bann Mechanical Ltd2019
- Ber Plumbing & Heating Ltd2026
- Boss Mechanical Services Limited2018
- BP Plumbing Heating & Gas Services Ltd2026
All plumbing and heating companies in Craigavon · All trades in Craigavon · Plumbers and heating engineers across the UK
Frequently asked questions
When are S M P Mechanical Ltd's accounts due?
S M P Mechanical Ltd's next accounts are due at Companies House by 10 December 2026 (in 58 days), covering the period to 10 March 2026.
When is S M P Mechanical Ltd's CT600 due?
The CT600 for the period to 10 March 2026 is due at HMRC by 10 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 11 December 2026.
Is S M P Mechanical Ltd still trading?
S M P Mechanical Ltd is listed as active on the Companies House register (checked 13 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 S M P Mechanical Ltd do?
S M P Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is S M P Mechanical Ltd?
S M P Mechanical Ltd was incorporated on 11 September 2019, 7 years ago.
What is the penalty if S M P Mechanical Ltd 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 S M P Mechanical Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 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.