- Companies
- Installers
- Basildon
- K Williamson Construction Limited
K Williamson Construction Limited
- Company number
- 08522928
- Incorporated
- 9 May 201313 years trading
- Registered office
- 4 Capricorn Centre, Cranes Farm Road, Basildon, Essex, SS14 3JJ
- Nature of business
- Other construction installation
K Williamson Construction Limited is a 13-year-old private limited company registered in Basildon, company number 08522928, one of 136 installation companies (insulation, lifts, shutters and similar) in Basildon. 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 up £16K (+37.7%) on the year before, to £59K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £16K against £18K owed within a year: 0.9 times cover.
- 1 employee 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 Mar 2025 | £59K | £5,088 | £16K | £18K | 1 |
| 31 Mar 2024 | £43K | £3,823 | £13K | £10K | 1 |
| 31 Mar 2023 | £29K | £806 | £15K | £9,658 | 1 |
| 31 Mar 2022 | £25K | £2,137 | £22K | £5,244 | 2 |
| 31 Mar 2021 | £18K | £1,533 | £14K | £3,575 | 2 |
| 31 Mar 2020 | £10K | £4,269 | £7,177 | £5,200 | 2 |
| 31 Mar 2019 | £1,896 | £7,877 | £7,877 | £14K | 2 |
| 31 Mar 2018 | £1,429 | £13K | £14K | £22K | 2 |
| 31 Mar 2017 | £17K | £3,231 | £19K | £13K | 1 |
| 31 Mar 2016 | £20K | £3,082 | £25K | £14K |
Who runs and owns K Williamson Construction Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| K*** W*** | Director | May 2013 |
Person with significant control
Where K Williamson Construction Limited is registered
The registered office is in Basildon (SS14), in the Basildon local authority area, East of England. Show SS14 3JJ on a map.
Other trade companies in SS14
- Texaco Essex LtdCleaning companies
- Premier Build Services LimitedFinishing trades
- Justrepairs & Paint LtdMechanics and garages
- Edyghost. LtdBuilders
- MSB Colchester Electrical LimitedElectricians
- Climate One LtdPlumbers and heating engineers
- Elsm LtdElectricians
- Redmarsh Property Maintenance LimitedCleaning companies
Shared registered office
627 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 K Williamson Construction 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 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
- 08522928
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 May 2013 (13 years ago)
- Registered office
- 4 Capricorn Centre, Cranes Farm Road, Basildon, Essex, SS14 3JJ
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 9 May 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 Basildon
Other active installation companies (insulation, lifts, shutters and similar) registered in Basildon.
- Kas Facilities Management Services Limited2005
- Keeping Pipework Limited2026
- Kevin M Thompson Limited2018
- Kitchens & Bedrooms Design Ltd2022
- KLD Groundworks & Labour Supplies Limited2018
- L Gallant Signs Limited2025
- L.P. Window Controls Limited2006
- Laggers Limited2020
All installation companies (insulation, lifts, shutters and similar) in Basildon · All trades in Basildon · Installers across the UK
Frequently asked questions
When are K Williamson Construction Limited's accounts due?
K Williamson Construction Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is K Williamson Construction Limited'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 K Williamson Construction Limited still trading?
K Williamson Construction 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 K Williamson Construction Limited do?
K Williamson Construction Limited is registered under Other construction installation (SIC 43290).
How old is K Williamson Construction Limited?
K Williamson Construction Limited was incorporated on 9 May 2013, 13 years ago.
Who runs K Williamson Construction Limited?
K Williamson Construction Limited has 1 active director, the longest-serving appointed in May 2013. Their names and service addresses are on the Companies House register.
Who owns K Williamson Construction Limited?
One person or company has significant control of K Williamson Construction Limited: an individual (owns 75% or more of the shares).
What is the penalty if K Williamson Construction 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 K Williamson Construction 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.