- Companies
- Specialist contractors
- Ammanford
- Tywi Specialists Limited
Tywi Specialists Limited
- Company number
- 04199823
- Incorporated
- 13 Apr 200125 years trading
- Registered office
- Unit 1 Betws Colliery Ind. Park, Maesquarre Road, Ammanford, Carmarthenshire, SA18 2LF
- Nature of business
- Other specialised construction activities n.e.c.
Tywi Specialists Limited is a 25-year-old private limited company registered in Ammanford, company number 04199823, one of 14 specialist construction companies in Ammanford. Its next accounts are due at Companies House on 31 January 2027, and the CT600 for the period to 30 April 2026 is due at HMRC on 30 April 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 down £21K (-14.1%) on the year before, to £129K.
- Net assets rose in 1 of 9 year-on-year comparisons on record.
- Current assets of £137K against £30K owed within a year: 4.6 times cover.
- 7 employees on average, up from 6 the year before.
- 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 |
|---|---|---|---|---|---|
| 30 Apr 2025 | £129K | £137K | £30K | 7 | |
| 30 Apr 2024 | £151K | £159K | £38K | 6 | |
| 30 Apr 2023 | £192K | £210K | £53K | 6 | |
| 30 Apr 2022 | £204K | £230K | £66K | 7 | |
| 30 Apr 2021 | £158K | £141K | £198K | £60K | 6 |
| 30 Apr 2020 | £169K | £133K | £177K | £26K | 5 |
| 30 Apr 2019 | £174K | £117K | £196K | £30K | 6 |
| 30 Apr 2018 | £177K | £122K | £214K | £47K | 7 |
| 30 Apr 2017 | £181K | £147K | £223K | £56K | 7 |
| 30 Apr 2016 | £181K | £147K | £197K | £32K |
Where Tywi Specialists Limited is registered
The registered office is in Ammanford (SA18), in the Carmarthenshire local authority area, Wales. Show SA18 2LF on a map.
Other trade companies in SA18
- Ace Resin Group LtdFinishing trades
- Dyfed Engineering LtdElectricians
- Serval Mechanical & Fabrication LtdMechanics and garages
- Timber and Trade Solutions LtdBuilders
- West Wales Cleaning Group LtdCleaning companies
- Carpet Confession LtdCleaning companies
- Elite Painting Solutions LtdPainters and decorators
- Dafku Construction LtdCivil engineering
What happens if Tywi Specialists 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 January 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Feb 2027 to 28 Feb 2027 | £150 |
| 1 to 3 months late | 1 Mar 2027 to 30 Apr 2027 | £375 |
| 3 to 6 months late | 1 May 2027 to 31 Jul 2027 | £750 |
| More than 6 months late | From 1 Aug 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 May 2027 | £200 |
| 3 months late | 30 Jul 2027 | another £200 |
| 6 months late | 30 Oct 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Apr 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
- 04199823
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 April 2001 (25 years ago)
- Registered office
- Unit 1 Betws Colliery Ind. Park, Maesquarre Road, Ammanford, Carmarthenshire, SA18 2LF
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 14 November 2025
- Charges (mortgages)
- 0 outstanding of 1 registered
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Ammanford
Other active specialist construction companies registered in Ammanford.
- Apl Pipework Services Ltd2015
- Black Mountain Tarmacadam Driveways Limited2021
- Celtic Green Energie Ltd2025
- Construction Solutions UK (Wales) Ltd2009
- Freeman Fleet Hire Limited2025
- M Thomas & Sons Ltd2019
- Masters Partnership Ltd2020
- Peter Gravelle Services Limited2009
All specialist construction companies in Ammanford · All trades in Ammanford · Specialist contractors across the UK
Frequently asked questions
When are Tywi Specialists Limited's accounts due?
Tywi Specialists Limited's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Tywi Specialists Limited's CT600 due?
The CT600 for the period to 30 April 2026 is due at HMRC by 30 April 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 February 2027.
Is Tywi Specialists Limited still trading?
Tywi Specialists 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 Tywi Specialists Limited do?
Tywi Specialists Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Tywi Specialists Limited?
Tywi Specialists Limited was incorporated on 13 April 2001, 25 years ago.
What is the penalty if Tywi Specialists 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 Tywi Specialists 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.