- Company number
- 14719159
- Incorporated
- 9 Mar 20233 years trading
- Registered office
- Fedw Hir, Llwydcoed, Aberdare, CF44 0DX
- Nature of business
- Construction of domestic buildings; Construction of utility projects for electricity and telecommunications; Wired telecommunications activities
S&M Infrastructure Services Ltd is a 3-year-old private limited company registered in Aberdare, company number 14719159, one of 32 building contractors in Aberdare. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 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 £33K on the year before, to £35K.
- Current assets of £362K against £292K owed within a year: 1.2 times cover.
- 8 employees on average, up from 6 the year before.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £35K | £65K | £362K | £292K | 8 |
| 31 Mar 2024 | £1,859 | £69K | £227K | £161K | 6 |
Who runs and owns S&M Infrastructure Services Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| C*** O*** | Director | Mar 2023 |
3 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| B*** H*** | Director | Mar 2023 | Mar 2023 |
| M*** M*** | Director | Mar 2023 | Jan 2024 |
| K*** O*** | Director | Aug 2024 | Jan 2025 |
Person with significant control
Charges (secured borrowing)
All 1 registered charge has been satisfied. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| Finbiz Funding Limited | Satisfied Mar 2025 | Aug 2024 |
Where S&M Infrastructure Services Ltd is registered
The registered office is in Aberdare (CF44), in the Rhondda Cynon Taf local authority area, Wales. Show CF44 0DX on a map.
Other trade companies in CF44
- Site Impact Reduction LtdBuilders
- Atlas Motorcare LtdMotor traders
- Albannie Internals LtdInstallers
- Omega Electrical & Renewables LimitedElectricians
- Overdrive Shopfitting LtdJoiners and carpenters
- MRG Lofts and Construction LimitedSpecialist contractors
- CB Heating & Plumbing SW LtdPlumbers and heating engineers
- Cav's Green Management LtdLandscapers and gardeners
What happens if S&M Infrastructure Services 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 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
- 14719159
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 March 2023 (3 years ago)
- Registered office
- Fedw Hir, Llwydcoed, Aberdare, CF44 0DX
- Nature of business
- Construction of domestic buildings (SIC 41202)
Construction of utility projects for electricity and telecommunications (SIC 42220)
Wired telecommunications activities (SIC 61100) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 31 October 2025
- Charges (mortgages)
- 0 outstanding of 1 registered
- Previous names
- S&M Telecoms & Civils Ltd (until 6 Nov 2024)
S&M Telecoms Ltd (until 26 May 2023)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Aberdare
Other active building contractors registered in Aberdare.
- Sheldon Contracts Ltd2026
- Site Impact Reduction Ltd2026
- Thorus Building Services Ltd2025
- Tom Hope Contractors Limited2024
- Acn Construction Ltd2023
- Brennan Design & Developments Ltd2023
- C & C Wood Ltd2021
- Chris Evans Building Contractors Limited2011
All building contractors in Aberdare · All trades in Aberdare · Builders across the UK
Frequently asked questions
When are S&M Infrastructure Services Ltd's accounts due?
S&M Infrastructure Services Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is S&M Infrastructure Services Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is S&M Infrastructure Services Ltd still trading?
S&M Infrastructure Services Ltd 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 S&M Infrastructure Services Ltd do?
S&M Infrastructure Services Ltd is registered under Construction of domestic buildings (SIC 41202); Construction of utility projects for electricity and telecommunications (SIC 42220); Wired telecommunications activities (SIC 61100).
How old is S&M Infrastructure Services Ltd?
S&M Infrastructure Services Ltd was incorporated on 9 March 2023, 3 years ago.
Who runs S&M Infrastructure Services Ltd?
S&M Infrastructure Services Ltd has 1 active director, the longest-serving appointed in Mar 2023. Their names and service addresses are on the Companies House register.
Who owns S&M Infrastructure Services Ltd?
One person or company has significant control of S&M Infrastructure Services Ltd: an individual (owns 50% to 75% of the shares).
What is the penalty if S&M Infrastructure Services 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 Infrastructure Services Ltd 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.