- Companies
- Finishing trades
- Allerton Damp-Proofing Limited
Allerton Damp-Proofing Limited
- Company number
- 02023575
- Incorporated
- 28 May 198640 years trading
- Registered office
- Unit 1 Ashbrook Park, Lincoln Way, Sherburn in Elmet, LS25 6QX
- Nature of business
- Other building completion and finishing
Allerton Damp-Proofing Limited is a 40-year-old private limited company registered in Sherburn in Elmet, company number 02023575, one of the UK's building finishing companies. Its next accounts are due at Companies House on 30 June 2027, and the CT600 for the period to 30 September 2026 is due at HMRC on 30 September 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 £882K (+49.1%) on the year before, to £2.7M.
- Net assets rose in 6 of 9 year-on-year comparisons on record.
- Current assets of £3.2M against £1.3M owed within a year: 2.6 times cover.
- 21 employees on average, up from 18 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 Sep 2025 | £2.7M | £1.1M | £3.2M | £1.3M | 21 |
| 30 Sep 2024 | £1.8M | £824K | £2.1M | £985K | 18 |
| 30 Sep 2023 | £1.2M | £871K | £1M | £630K | 18 |
| 30 Sep 2022 | £938K | £449K | £566K | £446K | 24 |
| 30 Sep 2021 | £1.2M | £1.1M | £1.2M | £690K | 29 |
| 30 Sep 2020 | £468K | £663K | £737K | £486K | 20 |
| 30 Sep 2019 | £276K | £554K | £530K | ||
| 30 Sep 2018 | £408K | £420K | £556K | £334K | |
| 30 Sep 2017 | £433K | £278K | £490K | £206K | |
| 30 Sep 2016 | £258K | £195K | £256K | £100K |
Public contracts won
Allerton Damp-Proofing Limited has 46 public sector contract awards on record; the ones with their own published value total £9.1M, from 2017 to 2026. Source: Contracts Finder and Find a Tender award notices. For 36 of them the published figure is a shared or multi-year ceiling (a framework place, a multi-supplier award, or more than a small company could hold alone), so no value is shown. 21 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Kirklees Council19 awards
- City of Doncaster Council3 awards
- The North Yorkshire Council2 awards
- Mosscare St Vincent's Housing Group Limited2 awards
- Places for People Group Limited2 awards
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Sec Procurement Limited T/A South East Consortium | Repairs and Maintenance Dynamic Market | Ceiling, not shown | 8 Sep 2026 |
| Vico Homes Limited | Damp Proof Remediation Works and Associated Works | 4 Sep 2026 | |
| Kirklees Council | Specialist Works Framework - Denham Street, Batley | Ceiling, not shown | 15 Jul 2026 |
| City of Doncaster Council | SLH - Voids & Repairs | £2.6M | 6 Jul 2026 |
| Kirklees Council | Specialist Works Framework - Hopton Avenue, Mirfield, | Ceiling, not shown | 25 Jun 2026 |
| Derby Homes Limited | DH25017 - Damp Proofing and Timber Treatment and Associated Works | £2.3M | 12 May 2026 |
| Kirklees Council | Specialist Works Framework - Lot 2, Crest Hill Road, Brackenhall, Huddersfield | Ceiling, not shown | 11 May 2026 |
| Kirklees Council | Specialist Works Framework - Cambridge Road, Birstall | Ceiling, not shown | 30 Apr 2026 |
| City of Doncaster Council | Voids & Repairs Works for St Leger Homes of Doncaster on behalf of the City of Doncaster Council | Ceiling, not shown | 8 Apr 2026 |
| Kirklees Council | Specialist Works Framework - Lawton Street, Primrose Hill, HUDDERSFIELD, | Ceiling, not shown | 26 Mar 2026 |
Showing the 10 most recent of 46.
Where Allerton Damp-Proofing Limited is registered
The registered office is in Sherburn in Elmet (LS25), in the North Yorkshire local authority area, Yorkshire and The Humber. Show LS25 6QX on a map.
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- CP Roofing and Cladding LtdRoofers
- Signature Spec Group LtdMotor traders
What happens if Allerton Damp-Proofing 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 30 June 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jul 2027 to 31 Jul 2027 | £150 |
| 1 to 3 months late | 1 Aug 2027 to 30 Sep 2027 | £375 |
| 3 to 6 months late | 1 Oct 2027 to 31 Dec 2027 | £750 |
| More than 6 months late | From 1 Jan 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Oct 2027 | £200 |
| 3 months late | 30 Dec 2027 | another £200 |
| 6 months late | 30 Mar 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Sep 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
- 02023575
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 28 May 1986 (40 years ago)
- Registered office
- Unit 1 Ashbrook Park, Lincoln Way, Sherburn in Elmet, LS25 6QX
- Nature of business
- Other building completion and finishing (SIC 43390)
- Year end
- 30 September (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 September 2025
- Last confirmation statement
- 25 June 2026
- Charges (mortgages)
- 3 outstanding of 4 registered
Filing notes for building finishing companies
Finishing trade companies cover a wide range of work. Most are micro-entities with simple accounts and a straightforward CT600.
Similar companies
Other active building finishing companies.
Frequently asked questions
When are Allerton Damp-Proofing Limited's accounts due?
Allerton Damp-Proofing Limited's next accounts are due at Companies House by 30 June 2027 (in 261 days), covering the period to 30 September 2026.
When is Allerton Damp-Proofing Limited's CT600 due?
The CT600 for the period to 30 September 2026 is due at HMRC by 30 September 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 July 2027.
Is Allerton Damp-Proofing Limited still trading?
Allerton Damp-Proofing 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 Allerton Damp-Proofing Limited do?
Allerton Damp-Proofing Limited is registered under Other building completion and finishing (SIC 43390).
How old is Allerton Damp-Proofing Limited?
Allerton Damp-Proofing Limited was incorporated on 28 May 1986, 40 years ago.
Has Allerton Damp-Proofing Limited won public sector contracts?
Yes. Allerton Damp-Proofing Limited has 46 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £9.1M), most recently from SEC PROCUREMENT LIMITED T/A SOUTH EAST CONSORTIUM.
What is the penalty if Allerton Damp-Proofing 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 Allerton Damp-Proofing 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.