- Companies
- Civil engineering
- Guildford
- Clockwork Engineering Limited
Clockwork Engineering Limited
- Company number
- 10915674
- Incorporated
- 15 Aug 20179 years trading
- Registered office
- Castle House, Castle Street, Guildford, GU1 3UW
- Nature of business
- Construction of other civil engineering projects n.e.c.; Business and domestic software development; Other information technology service activities
Clockwork Engineering Limited is a 9-year-old private limited company registered in Guildford, company number 10915674, one of 23 civil engineering contractors in Guildford. 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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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 £57K (+31.1%) on the year before, to £240K.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £297K against £58K owed within a year: 5.1 times cover.
- 3 employees 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 Dec 2025 | £240K | £33K | £297K | £58K | 3 |
| 31 Dec 2024 | £183K | £76K | £305K | £122K | 3 |
| 31 Aug 2023 | £139K | £116K | £287K | £143K | 3 |
| 31 Aug 2022 | £55K | £24K | £171K | £96K | 3 |
| 31 Aug 2021 | -£8,458 | £3,001 | £116K | £98K | 3 |
| 31 Aug 2020 | £75K | £6,108 | £149K | £45K | 3 |
| 31 Aug 2019 | £50K | £9,962 | £78K | £36K | 3 |
| 31 Aug 2018 | £7,782 | £2,388 | £13K | £8,308 | 1 |
Who runs and owns Clockwork Engineering Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| S*** B*** | Director | Aug 2017 |
| A*** G*** | Director | Apr 2019 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| E*** H*** | Secretary | Aug 2017 | Mar 2024 |
| M*** C*** | Director | Apr 2019 | Aug 2026 |
People with significant control (2)
Where Clockwork Engineering Limited is registered
The registered office is in Guildford (GU1), in the Guildford local authority area, South East. Show GU1 3UW on a map.
Other trade companies in GU1
- TWR Workshop LtdRepair services
- RTT Homes LimitedBuilders
- Centre Point Electrical LtdElectricians
- Maple Hill Property LtdProperty developers
- Harson Concord LtdProperty developers
- Corepoint Data Centres LtdProperty developers
- NHQ Developments LtdSpecialist contractors
- MKM Facilities LtdFinishing trades
Also registered at this address
3 other companies use the same registered office as Clockwork Engineering Limited.
- DC Electrical (Essex) LimitedElectricians
- London and Dyce LimitedProperty developers
- Redset Solutions LimitedProperty developers
What happens if Clockwork Engineering Limited 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
- 10915674
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 August 2017 (9 years ago)
- Registered office
- Castle House, Castle Street, Guildford, GU1 3UW
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
Business and domestic software development (SIC 62012)
Other information technology service activities (SIC 62090) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 14 August 2026
Filing notes for civil engineering contractors
Civil engineering contractors usually carry plant and machinery, so capital allowances (the annual investment allowance and the main pool) do much of the work in the corporation tax computation.
Similar companies in Guildford
Other active civil engineering contractors registered in Guildford.
- College of Contract Management Coaching and Consulting Ltd2011
- Complete Site Construct Ltd2015
- Constant Structural Design Limited2011
- D H Building Services Limited2002
- Drainageve Ltd2020
- Dutch Limited2013
- G and Martins Limited2018
- Hedef Structural Engineering and Consulting Ltd2021
All civil engineering contractors in Guildford · All trades in Guildford · Civil engineering across the UK
Frequently asked questions
When are Clockwork Engineering Limited's accounts due?
Clockwork Engineering Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Clockwork Engineering Limited'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 Clockwork Engineering Limited still trading?
Clockwork Engineering Limited 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 Clockwork Engineering Limited do?
Clockwork Engineering Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990); Business and domestic software development (SIC 62012); Other information technology service activities (SIC 62090).
How old is Clockwork Engineering Limited?
Clockwork Engineering Limited was incorporated on 15 August 2017, 9 years ago.
Who runs Clockwork Engineering Limited?
Clockwork Engineering Limited has 2 active directors, the longest-serving appointed in Aug 2017. Their names and service addresses are on the Companies House register.
Who owns Clockwork Engineering Limited?
2 people or companies have significant control of Clockwork Engineering Limited: an individual (owns 25% to 50% of the shares); an individual (owns 50% to 75% of the shares).
What is the penalty if Clockwork Engineering Limited 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 Clockwork Engineering Limited 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.