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- Machinery repair and installation
- Maidstone
- Protech Doors Ltd
Company profile · Machinery repair and installation
Protech Doors Ltd
Protech Doors Ltd is a 12-year-old private limited company registered in Maidstone, company number 08818110, one of 68 machinery repair and installation companies in Maidstone. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2025
From the balance sheet at 31 December 2025, as filed at Companies House.
Protech Doors Ltd over the years
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 £41K (+106.4%) on the year before, to £79K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £99K against £30K owed within a year: 3.3 times cover.
- 2 employees on average during the year.
- 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 |
|---|---|---|---|---|---|
| 31 Dec 2025 | £79K | £99K | £30K | 2 | |
| 31 Dec 2024 | £38K | £68K | £28K | 2 | |
| 31 Dec 2023 | £33K | £65K | £31K | 3 | |
| 31 Dec 2022 | £8,225 | £38K | £18K | 3 | |
| 31 Dec 2021 | £25K | £64K | £22K | 3 | |
| 31 Dec 2020 | £13K | £49K | £38K | 3 | |
| 31 Dec 2019 | £24K | £41K | £27K | 4 | |
| 31 Dec 2018 | £33K | £46K | £21K | ||
| 31 Dec 2017 | £47K | £52K | £14K | ||
| 31 Dec 2016 | £37K | £52K | £16K |
Where Protech Doors Ltd is registered
The registered office is in Maidstone (ME14), in the Maidstone local authority area, South East. Show ME14 5DZ on a map.
Other trade companies in ME14
- Philips 1ST Property Investment LimitedProperty developers
- M D Ducting Supplies LimitedInstallers
- Wired Right Solutions LimitedElectricians
- Traditional Meets Modern Homes LtdProperty developers
- The Wright Group Enterprises LtdMotor traders
- Paul Gasson Roofline LtdRoofers
- Novex Construction LtdBuilders
- L&C Brickwork East Sussex LtdSpecialist contractors
Shared registered office
26 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 Protech Doors 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 08818110
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 17 December 2013 (12 years ago)
- Registered office
- 31-33 Albion Place, Sittingbourne Road, Maidstone, Kent, ME14 5DZ
- Nature of business
- Repair of other equipment (SIC 33190)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 11 September 2026
Filing notes for machinery repair and installation companies
Machinery repair and installation companies often carry parts stock and specialist tools, and many work on contracts that span the year end.
Similar companies in Maidstone
Other active machinery repair and installation companies registered in Maidstone.
- Psi Marine Limited2012
- R Gwennell Ltd2014
- Redsky Aviation Services Limited2025
- Reefermech Limited2026
- RTC Technical Ltd2017
- Rushton Lift Services Ltd2018
- Sig Transport Ltd2019
- Sigma Electrical & Controls Ltd2026
All machinery repair and installation companies in Maidstone · All trades in Maidstone · Machinery repair and installation across the UK
Frequently asked questions
When are Protech Doors Ltd's accounts due?
Protech Doors Ltd's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Protech Doors Ltd's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is Protech Doors Ltd still trading?
Protech Doors 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 Protech Doors Ltd do?
Protech Doors Ltd is registered under Repair of other equipment (SIC 33190).
How old is Protech Doors Ltd?
Protech Doors Ltd was incorporated on 17 December 2013, 12 years ago.
What is the penalty if Protech Doors 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 Protech Doors 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.