- Companies
- Specialist contractors
- Swansea
- Reactodamp Ltd
Reactodamp Ltd
- Company number
- 11412813
- Incorporated
- 13 Jun 20188 years trading
- Registered office
- Chorlton House Llwynmawr Road, Sketty, Swansea, SA2 9HB
- Nature of business
- Other specialised construction activities n.e.c.
Reactodamp Ltd is a 8-year-old private limited company registered in Swansea, company number 11412813, one of 99 specialist construction companies in Swansea. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 unchanged on the year before, at -£53K.
- Net assets rose in 1 of 6 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | -£53K | £0 | £100 | 1 | |
| 30 Jun 2024 | -£53K | £1 | £100 | 1 | |
| 30 Jun 2023 | -£53K | £335 | £100 | 1 | |
| 30 Jun 2022 | -£42K | £7,247 | £250 | 1 | |
| 30 Jun 2021 | -£15K | £35K | £250 | 1 | |
| 30 Jun 2020 | £2,530 | £3,960 | £1,280 | 1 | |
| 30 Jun 2019 | £2,715 | £3,528 | £613 | 1 |
Where Reactodamp Ltd is registered
The registered office is in Swansea (SA2), in the Swansea local authority area, Wales. Show SA2 9HB on a map.
Other trade companies in SA2
- Living Landscapes Commercial LtdLandscapers and gardeners
- DC Plumbing & Construction LtdBuilders
- Ginger Property Services LimitedProperty developers
- Smart Space Living LtdJoiners and carpenters
- Paul Vernon HV Sap LimitedCivil engineering
- L.H Hiab & Recovery LimitedMechanics and garages
- Lewis Tarmac LtdCivil engineering
- Tolzini Cleaning Services LtdCleaning companies
Also registered at this address
1 other company uses the same registered office as Reactodamp Ltd.
- Multitrade Property Care LtdProperty developers
What happens if Reactodamp 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 11412813
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 13 June 2018 (8 years ago)
- Registered office
- Chorlton House Llwynmawr Road, Sketty, Swansea, SA2 9HB
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 12 June 2026
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 Swansea
Other active specialist construction companies registered in Swansea.
- Red Dragon Repairs Limited2024
- Residential and Estate Support Services Ltd2025
- Ricochet Properties Ltd2018
- Riverside Water Technologies Limited1954
- Safeway Scaffolding Solutions Ltd2017
- Scott Jenkins Interior Solutions Ltd2025
- Sealpro Limited2020
- Signature Groundworks Ltd2021
All specialist construction companies in Swansea · All trades in Swansea · Specialist contractors across the UK
Frequently asked questions
When are Reactodamp Ltd's accounts due?
Reactodamp Ltd's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is Reactodamp Ltd's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is Reactodamp Ltd still trading?
Reactodamp 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 Reactodamp Ltd do?
Reactodamp Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Reactodamp Ltd?
Reactodamp Ltd was incorporated on 13 June 2018, 8 years ago.
What is the penalty if Reactodamp 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 Reactodamp 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.