- Company number
- 10025704
- Incorporated
- 25 Feb 201610 years trading
- Registered office
- Dragon House Princes Way, Bridgend Industrial Estate, Bridgend, CF31 3AQ
- Nature of business
- Construction of commercial buildings; Construction of domestic buildings
Siam Construction Services Ltd is a 10-year-old private limited company registered in Bridgend, company number 10025704, one of 86 building contractors in Bridgend. 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 £12K on the year before, to £13K.
- Net assets rose in 4 of 9 year-on-year comparisons on record.
- Current assets of £65K against £51K owed within a year: 1.3 times cover.
- 4 employees on average, up from 3 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £13K | £3,057 | £65K | £51K | 4 |
| 31 Mar 2025 | £953 | £9 | £41K | £30K | 3 |
| 31 Mar 2024 | -£18K | £3,073 | £63K | £48K | 3 |
| 31 Mar 2023 | -£8,735 | £903 | £65K | £34K | 2 |
| 31 Mar 2022 | £18K | £223 | £101K | £42K | 3 |
| 31 Mar 2021 | £48K | £826 | £123K | £32K | 4 |
| 31 Mar 2020 | £69K | £69K | £140K | £70K | 4 |
| 31 Mar 2019 | £40K | £21K | £84K | £46K | 4 |
| 31 Mar 2018 | £7,893 | £5,215 | £36K | £30K | 4 |
| 31 Mar 2017 | £21K | £36K | £14K |
Where Siam Construction Services Ltd is registered
The registered office is in Bridgend (CF31), in the Bridgend local authority area, Wales. Show CF31 3AQ on a map.
Other trade companies in CF31
- RJ Home & Garden LimitedSpecialist contractors
- Nuk Electrics LtdElectricians
- Flint Falcon LtdCleaning companies
- Ki Dynamics PVT LimitedMotor traders
- Spotlessly Clean Cleaning Services LtdCleaning companies
- Tec 44 Electrics LtdBuilders
- Kainth&Dihanahomes LtdBuilders
- HJB Property Development and Landscapes LtdLandscapers and gardeners
Also registered at this address
12 other companies use the same registered office as Siam Construction Services Ltd.
- D.B. Powell Repairs LtdMachinery repair and installation
- Diablo Estates LimitedProperty developers
- Dme Gym Services LimitedMachinery repair and installation
- Ibex Rope Access Solutions LtdMachinery repair and installation
- MH Sales Consultancy LimitedMotor traders
- Pillar Post LimitedSpecialist contractors
- Snapkey Car Locksmith LtdMechanics and garages
- Tersus Engineering LtdMotor traders
- Tilton Developments LimitedProperty developers
- Ultimate Ies LimitedElectricians
- Vida Works LtdCleaning companies
- Ward's Electrical Services LimitedElectricians
What happens if Siam Construction 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 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
- 10025704
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 February 2016 (10 years ago)
- Registered office
- Dragon House Princes Way, Bridgend Industrial Estate, Bridgend, CF31 3AQ
- Nature of business
- Construction of commercial buildings (SIC 41201)
Construction of domestic buildings (SIC 41202) - Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 2 January 2026
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 Bridgend
Other active building contractors registered in Bridgend.
- Simon Aberstone Ltd2015
- Songhurst Developments Ltd2021
- Specialist Labour Solutions Ltd2023
- SPF Construction (Bridgend) Ltd2009
- Stone & Frame Construction Ltd2026
- Strategic Building Solutions Ltd2025
- Swe Property Ltd2026
- Syd Rentals Limited2025
All building contractors in Bridgend · All trades in Bridgend · Builders across the UK
Frequently asked questions
When are Siam Construction Services Ltd's accounts due?
Siam Construction Services Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Siam Construction Services Ltd'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 Siam Construction Services Ltd still trading?
Siam Construction 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 Siam Construction Services Ltd do?
Siam Construction Services Ltd is registered under Construction of commercial buildings (SIC 41201); Construction of domestic buildings (SIC 41202).
How old is Siam Construction Services Ltd?
Siam Construction Services Ltd was incorporated on 25 February 2016, 10 years ago.
What is the penalty if Siam Construction 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 Siam Construction 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.