- Companies
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- Plymouth
- Cdi Waterproofing Services Ltd
Cdi Waterproofing Services Ltd
- Company number
- 13237616
- Incorporated
- 2 Mar 20215 years trading
- Registered office
- 34 Yealmpstone Close, Plymouth, PL7 1XL
- Nature of business
- Other construction installation
Cdi Waterproofing Services Ltd is a 5-year-old private limited company registered in Plymouth, company number 13237616, one of 54 installation companies (insulation, lifts, shutters and similar) in Plymouth. Its next accounts are due at Companies House on 30 November 2027, and the CT600 for the period to 28 February 2027 is due at HMRC on 28 February 2028.
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 £1,351 (+4.6%) on the year before, to £31K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £40K against £11K owed within a year: 3.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2022 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2026 | £31K | £35K | £40K | £11K | 1 |
| 28 Feb 2025 | £29K | £44K | £51K | £23K | 1 |
| 29 Feb 2024 | £30K | £51K | £58K | £27K | 1 |
| 28 Feb 2023 | £9,816 | £19K | £9,782 | 1 | |
| 28 Feb 2022 | £5,373 | £14K | £8,891 | 1 |
Where Cdi Waterproofing Services Ltd is registered
The registered office is in Plymouth (PL7), in the Plymouth local authority area, South West. Show PL7 1XL on a map.
Other trade companies in PL7
- Taurus Scaffolding SW LimitedScaffolders
- Devon German Motor Works LtdMechanics and garages
- Wae LimitedProperty developers
- Munera Construction LtdInstallers
- Vision Retail (Southern) LimitedProperty developers
- Moor to Coast Electrical Services SW LtdElectricians
- Sound Structural LtdSpecialist contractors
- Great White Estates LtdProperty developers
What happens if Cdi Waterproofing Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2027 to 31 Dec 2027 | £150 |
| 1 to 3 months late | 1 Jan 2028 to 29 Feb 2028 | £375 |
| 3 to 6 months late | 1 Mar 2028 to 31 May 2028 | £750 |
| More than 6 months late | From 1 Jun 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 29 Feb 2028 | £200 |
| 3 months late | 28 May 2028 | another £200 |
| 6 months late | 28 Aug 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 2029 | 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
- 13237616
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 March 2021 (5 years ago)
- Registered office
- 34 Yealmpstone Close, Plymouth, PL7 1XL
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2026
- Last confirmation statement
- 1 March 2026
Filing notes for installation companies (insulation, lifts, shutters and similar)
Installation companies (insulation, lifts, shutters, solar and similar) often buy stock and equipment up front, so stock at the year end and capital allowances both affect the tax bill.
Similar companies in Plymouth
Other active installation companies (insulation, lifts, shutters and similar) registered in Plymouth.
- Cornflower Kitchens & Bathrooms Limited2024
- Dave Johnson Limited2003
- Discover Folley Ltd2006
- Drake Fire Doors Ltd2026
- DRS Building Services Ltd2010
- Eco Contracting Group Ltd2026
- Energy Synergy Solutions Limited2015
- Gabber Cladding Company Limited2021
All installation companies (insulation, lifts, shutters and similar) in Plymouth · All trades in Plymouth · Installers across the UK
Frequently asked questions
When are Cdi Waterproofing Services Ltd's accounts due?
Cdi Waterproofing Services Ltd's next accounts are due at Companies House by 30 November 2027 (in 413 days), covering the period to 28 February 2027.
When is Cdi Waterproofing Services Ltd's CT600 due?
The CT600 for the period to 28 February 2027 is due at HMRC by 28 February 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2027.
Is Cdi Waterproofing Services Ltd still trading?
Cdi Waterproofing Services 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 Cdi Waterproofing Services Ltd do?
Cdi Waterproofing Services Ltd is registered under Other construction installation (SIC 43290).
How old is Cdi Waterproofing Services Ltd?
Cdi Waterproofing Services Ltd was incorporated on 2 March 2021, 5 years ago.
What is the penalty if Cdi Waterproofing Services 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 Cdi Waterproofing Services 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.