- Companies
- Specialist contractors
- Doncaster
- South Yorkshire Damp Proof Specialists Ltd
South Yorkshire Damp Proof Specialists Ltd
- Company number
- 09824240
- Incorporated
- 14 Oct 201511 years trading
- Registered office
- 59 Milton Road, Branton, Doncaster, South Yorkshire, DN3 3NX
- Nature of business
- Other specialised construction activities n.e.c.
South Yorkshire Damp Proof Specialists Ltd is a 11-year-old private limited company registered in Doncaster, company number 09824240, one of 187 specialist construction companies in Doncaster. Its next accounts are due at Companies House on 30 May 2027, and the CT600 for the period to 30 August 2026 is due at HMRC on 30 August 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 £1,494 (+36.2%) on the year before, to £5,617.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £6,682 against £1,811 owed within a year: 3.7 times cover.
- 2 employees on average during the year.
- 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 Aug 2025 | £5,617 | £6,682 | £1,811 | 2 | |
| 30 Aug 2024 | £4,123 | £5,693 | £2,781 | 2 | |
| 30 Aug 2023 | £1,997 | £5,113 | £4,947 | 2 | |
| 30 Aug 2022 | £1,146 | £2,728 | £3,519 | 2 | |
| 30 Aug 2021 | £59 | £2,169 | £3,574 | 2 | |
| 30 Aug 2020 | -£325 | £2,622 | £4,305 | 2 | |
| 30 Aug 2019 | £239 | -£3,742 | £5,798 | ||
| 30 Aug 2018 | £1,783 | -£225 | £3,888 | ||
| 31 Aug 2017 | £2,891 | £2,389 | £2,222 | ||
| 31 Aug 2016 | £4,651 | £2,987 | £3,287 | £3,136 |
Where South Yorkshire Damp Proof Specialists Ltd is registered
The registered office is in Doncaster (DN3), in the Doncaster local authority area, Yorkshire and The Humber. Show DN3 3NX on a map.
Other trade companies in DN3
- Oak & Prosper York LimitedProperty developers
- ST Leger Paving LimitedInstallers
- Lucent Electrical LtdElectricians
- Alfa Scaffolding & Brickwork LimitedCivil engineering
- Hso Fastfit Tyres LtdMechanics and garages
- Cheri Valley Construction Co LtdInstallers
- Razor Sharp Interiors LtdFinishing trades
- Reebuilt LimitedInstallers
What happens if South Yorkshire Damp Proof Specialists 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 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 31 May 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 30 Aug 2027 | £375 |
| 3 to 6 months late | 31 Aug 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 31 Aug 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Aug 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
- 09824240
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 October 2015 (11 years ago)
- Registered office
- 59 Milton Road, Branton, Doncaster, South Yorkshire, DN3 3NX
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 August (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 August 2025
- Last confirmation statement
- 1 October 2025
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 Doncaster
Other active specialist construction companies registered in Doncaster.
- South Yorkshire French Polishers Ltd2022
- South Yorkshire Material Testing Limited2026
- Staveley Overhead Line Services Ltd2017
- Steve Pinter Lifting Ltd2020
- Structures Examination Services Ltd2022
- Sunnydene Park (East Yorkshire) Limited2021
- Surface Specialists Ltd2026
- Sutro Services Limited2017
All specialist construction companies in Doncaster · All trades in Doncaster · Specialist contractors across the UK
Frequently asked questions
When are South Yorkshire Damp Proof Specialists Ltd's accounts due?
South Yorkshire Damp Proof Specialists Ltd's next accounts are due at Companies House by 30 May 2027 (in 228 days), covering the period to 30 August 2026.
When is South Yorkshire Damp Proof Specialists Ltd's CT600 due?
The CT600 for the period to 30 August 2026 is due at HMRC by 30 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 31 May 2027.
Is South Yorkshire Damp Proof Specialists Ltd still trading?
South Yorkshire Damp Proof Specialists 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 South Yorkshire Damp Proof Specialists Ltd do?
South Yorkshire Damp Proof Specialists Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is South Yorkshire Damp Proof Specialists Ltd?
South Yorkshire Damp Proof Specialists Ltd was incorporated on 14 October 2015, 11 years ago.
What is the penalty if South Yorkshire Damp Proof Specialists 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 South Yorkshire Damp Proof Specialists 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.