- Companies
- Specialist contractors
- Ruislip
- Impervious Roofing & Building Ltd
Impervious Roofing & Building Ltd
- Company number
- 10743871
- Incorporated
- 27 Apr 20179 years trading
- Registered office
- 1-3 Shenley Avenue, Ruislip, HA4 6BP
- Nature of business
- Other specialised construction activities n.e.c.
Impervious Roofing & Building Ltd is a 9-year-old private limited company registered in Ruislip, company number 10743871, one of 107 specialist construction companies in Ruislip. 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 £20K (-40.9%) on the year before, to £29K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Apr 2025 | £29K | £29K | £15K | 1 | |
| 30 Apr 2024 | £49K | £38K | £14K | 1 | |
| 30 Apr 2023 | £81K | £98K | £42K | 1 | |
| 30 Apr 2022 | £57K | £64K | £64K | £42K | 1 |
| 30 Apr 2021 | -£3,082 | £9,220 | £10K | £23K | 1 |
| 30 Apr 2020 | £8,963 | £18K | £23K | 1 | |
| 30 Apr 2019 | £6,057 | £33K | £31K | ||
| 30 Apr 2018 | £100 | £100 |
Where Impervious Roofing & Building Ltd is registered
The registered office is in Ruislip (HA4), in the Hillingdon local authority area, London. Show HA4 6BP on a map.
Other trade companies in HA4
- SSC London LtdGroundworks and demolition
- DCR Industriltdal LtdPainters and decorators
- Katardino Monten for General Contracting and Supplies LtdCivil engineering
- Apex Build & Move LtdBuilders
- Ridgeway Building Contracts LimitedProperty developers
- Azya Farah LtdBuilders
- Howdens Roofing & Guttering LimitedRoofers
- Vetro Glazing LimitedGlaziers
Shared registered office
44 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Impervious Roofing & Building 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 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
- 10743871
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 27 April 2017 (9 years ago)
- Registered office
- 1-3 Shenley Avenue, Ruislip, HA4 6BP
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 April (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 April 2025
- Last confirmation statement
- 5 April 2026
- Previous names
- Trademark Home Improvements Ltd (until 8 Nov 2022)
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 Ruislip
Other active specialist construction companies registered in Ruislip.
- Ivory Workforce Limited2026
- J&S Carpentry Limited2017
- JMC Lofts & Extensions Ltd2017
- Karlsson Composite Ltd2026
- L Marshall Contractors Limited2013
- Larchwood Roofing & Building Limited2012
- Laxmi London Ltd Limited2026
- London Blast Contracts Ltd2016
All specialist construction companies in Ruislip · All trades in Ruislip · Specialist contractors across the UK
Frequently asked questions
When are Impervious Roofing & Building Ltd's accounts due?
Impervious Roofing & Building Ltd's next accounts are due at Companies House by 31 January 2027 (in 110 days), covering the period to 30 April 2026.
When is Impervious Roofing & Building Ltd'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 Impervious Roofing & Building Ltd still trading?
Impervious Roofing & Building 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 Impervious Roofing & Building Ltd do?
Impervious Roofing & Building Ltd is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is Impervious Roofing & Building Ltd?
Impervious Roofing & Building Ltd was incorporated on 27 April 2017, 9 years ago.
What is the penalty if Impervious Roofing & Building 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 Impervious Roofing & Building 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.