- Companies
- Glaziers
- Cleckheaton
- Coldseal Eco Upgrades UK Ltd
Coldseal Eco Upgrades UK Ltd
- Company number
- 11283394
- Incorporated
- 29 Mar 20188 years trading
- Registered office
- Cavendish House, Littlewood Drive, Cleckheaton, BD19 4TE
- Nature of business
- Glazing
Coldseal Eco Upgrades UK Ltd is a 8-year-old private limited company registered in Cleckheaton, company number 11283394, one of the UK's glazing companies. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £55K (-36%) on the year before, to £97K.
- Net assets rose in 3 of 6 year-on-year comparisons on record.
- Current assets of £130K against £34K owed within a year: 3.8 times cover.
- 2 employees 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 |
|---|---|---|---|---|---|
| 31 Mar 2025 | £97K | £130K | £34K | 2 | |
| 31 Mar 2024 | £152K | £155K | £1,220 | 2 | |
| 31 Mar 2023 | £189K | £194K | £1,472 | 1 | |
| 31 Mar 2022 | £227K | £234K | £3,612 | 1 | |
| 31 Mar 2021 | £216K | £223K | £4,390 | 1 | |
| 31 Mar 2020 | £88K | £88K | 1 | ||
| 31 Mar 2019 | £1 | £1 |
Where Coldseal Eco Upgrades UK Ltd is registered
The registered office is in Cleckheaton (BD19), in the Kirklees local authority area, Yorkshire and The Humber. Show BD19 4TE on a map.
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Also registered at this address
15 other companies use the same registered office as Coldseal Eco Upgrades UK Ltd.
- Atlas Haulage LimitedMechanics and garages
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- Top Quality Home Cleaning Services LimitedCleaning companies
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What happens if Coldseal Eco Upgrades UK 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 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 11283394
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 29 March 2018 (8 years ago)
- Registered office
- Cavendish House, Littlewood Drive, Cleckheaton, BD19 4TE
- Nature of business
- Glazing (SIC 43342)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 28 March 2026
Filing notes for glazing companies
Glazing companies often take deposits before work starts. Deposits held at the year end are a liability, not income, until the job is done.
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Frequently asked questions
When are Coldseal Eco Upgrades UK Ltd's accounts due?
Coldseal Eco Upgrades UK Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is Coldseal Eco Upgrades UK Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Coldseal Eco Upgrades UK Ltd still trading?
Coldseal Eco Upgrades UK 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 Coldseal Eco Upgrades UK Ltd do?
Coldseal Eco Upgrades UK Ltd is registered under Glazing (SIC 43342).
How old is Coldseal Eco Upgrades UK Ltd?
Coldseal Eco Upgrades UK Ltd was incorporated on 29 March 2018, 8 years ago.
What is the penalty if Coldseal Eco Upgrades UK 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 Coldseal Eco Upgrades UK 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.