- Companies
- Plumbers and heating engineers
- Burry Port
- DD Mechanical Ltd
DD Mechanical Ltd
- Company number
- 08414925
- Incorporated
- 22 Feb 201313 years trading
- Registered office
- Zion Unit the Old Zion Chapel, Parc Y Minos Street, Burry Port, SA16 0BN
- Nature of business
- Plumbing, heat and air-conditioning installation
DD Mechanical Ltd is a 13-year-old private limited company registered in Burry Port, company number 08414925, one of 6 plumbing and heating companies in Burry Port. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £43K (-4.9%) on the year before, to £834K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £920K against £129K owed within a year: 7.2 times cover.
- 4 employees on average, down from 5 the year before.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £834K | £115K | £920K | £129K | 4 |
| 29 Feb 2024 | £877K | £99K | £1.1M | £273K | 5 |
| 28 Feb 2023 | £831K | £121K | £1M | £220K | 10 |
| 28 Feb 2022 | £764K | £232K | £1.1M | £409K | 17 |
| 28 Feb 2021 | £892K | £301K | £1.4M | £525K | 18 |
| 29 Feb 2020 | £311K | £166K | £632K | £350K | 14 |
| 28 Feb 2020 | £311K | £166K | £632K | £350K | 14 |
| 28 Feb 2019 | £300K | £107K | £399K | £115K | |
| 28 Feb 2018 | £338K | £221K | £557K | £245K | |
| 28 Feb 2017 | £118K | £214K | £122K |
Who runs and owns DD Mechanical Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| D*** D*** | Director | Feb 2013 |
| H*** D*** | Director | Feb 2016 |
People with significant control (2)
Where DD Mechanical Ltd is registered
The registered office is in Burry Port (SA16), in the Carmarthenshire local authority area, Wales. Show SA16 0BN on a map.
Other trade companies in SA16
- Bowen's Autos LimitedMechanics and garages
- R J Sheen CyfSpecialist contractors
- Euryn Jones Plant Repairs LimitedInstallers
- Survey and Civils LtdBuilders
- Green's Plumbing LtdPlumbers and heating engineers
- Hughes&Peters Building & Maintenance Contractors LtdProperty developers
- High Calibre Roofing & Carpentry LimitedRoofers
- Celtic Electrics LtdElectricians
What happens if DD 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 08414925
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 22 February 2013 (13 years ago)
- Registered office
- Zion Unit the Old Zion Chapel, Parc Y Minos Street, Burry Port, SA16 0BN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 22 February 2026
- Previous names
- DD Plumbers Ltd (until 20 Jun 2024)
DD Mechanical Ltd (until 20 Jan 2022)
DDP Engineering Ltd (until 11 Nov 2019)
DD Plumbers Ltd (until 11 Nov 2019)
Darren Daniel Plumbing & Heating Ltd (until 15 Sep 2015)
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 Burry Port
Other active plumbing and heating companies registered in Burry Port.
- Green's Plumbing Ltd2025
- Mrac Ltd2021
- Paige Plumbing and Heating Ltd2021
- Verdantis Eco Ltd2024
- Wardrop Gas Services Ltd2021
All plumbing and heating companies in Burry Port · All trades in Burry Port · Plumbers and heating engineers across the UK
Frequently asked questions
When are DD Mechanical Ltd's accounts due?
DD Mechanical Ltd's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is DD Mechanical Ltd's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is DD Mechanical Ltd still trading?
DD Mechanical 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 DD Mechanical Ltd do?
DD Mechanical Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is DD Mechanical Ltd?
DD Mechanical Ltd was incorporated on 22 February 2013, 13 years ago.
Who runs DD Mechanical Ltd?
DD Mechanical Ltd has 2 active directors, the longest-serving appointed in Feb 2013. Their names and service addresses are on the Companies House register.
Who owns DD Mechanical Ltd?
2 people or companies have significant control of DD Mechanical Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if DD 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 DD Mechanical 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.