- Companies
- Installers
- Peterborough
- Protek Corporation Ltd
Protek Corporation Ltd
- Company number
- 11072939
- Incorporated
- 20 Nov 20178 years trading
- Registered office
- 1281 Lincoln Road, Peterborough, PE4 6LJ
- Nature of business
- Other construction installation
Protek Corporation Ltd is a 8-year-old private limited company registered in Peterborough, company number 11072939, one of 90 installation companies (insulation, lifts, shutters and similar) in Peterborough. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 £38K (-28.3%) on the year before, to £96K.
- Net assets rose in 3 of 7 year-on-year comparisons on record.
- Current assets of £106K against £9,723 owed within a year: more than 10 times cover.
- 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 |
|---|---|---|---|---|---|
| 31 May 2025 | £96K | £27K | £106K | £9,723 | 1 |
| 27 Apr 2024 | £134K | £118K | £201K | £67K | 1 |
| 29 Apr 2023 | £111K | £94K | £263K | £152K | 1 |
| 29 Apr 2022 | £27K | £23K | £109K | £82K | 1 |
| 30 Apr 2021 | £100 | £100 | |||
| 30 Nov 2020 | £100 | £100 | |||
| 30 Nov 2019 | £100 | £100 | |||
| 30 Nov 2018 | £100 | £100 |
Where Protek Corporation Ltd is registered
The registered office is in Peterborough (PE4), in the Peterborough local authority area, East of England. Show PE4 6LJ on a map.
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- Jesn Transport and Car Services LtdMotor traders
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- D-Garage Mobile Pro LtdMechanics and garages
Also registered at this address
1 other company uses the same registered office as Protek Corporation Ltd.
- Pro Tek Interiors LimitedInstallers
What happens if Protek Corporation 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 11072939
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 November 2017 (8 years ago)
- Registered office
- 1281 Lincoln Road, Peterborough, PE4 6LJ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 15 November 2025
- Previous names
- Pro Tek Exteriors Limited (until 27 Jan 2022)
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 Peterborough
Other active installation companies (insulation, lifts, shutters and similar) registered in Peterborough.
- Quoin Environmental Developments Limited2001
- Raymoss Ltd2018
- Reflection UK East Ltd2019
- RJR Contracts Ltd2017
- Roman Construction Services Ltd2022
- S&V Kitchens and Bathrooms Limited2022
- SF, Property Maintenance & Decoration Ltd2021
- Silinor Limited2025
All installation companies (insulation, lifts, shutters and similar) in Peterborough · All trades in Peterborough · Installers across the UK
Frequently asked questions
When are Protek Corporation Ltd's accounts due?
Protek Corporation Ltd's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is Protek Corporation Ltd's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is Protek Corporation Ltd still trading?
Protek Corporation 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 Protek Corporation Ltd do?
Protek Corporation Ltd is registered under Other construction installation (SIC 43290).
How old is Protek Corporation Ltd?
Protek Corporation Ltd was incorporated on 20 November 2017, 8 years ago.
What is the penalty if Protek Corporation 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 Protek Corporation 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.