- Companies
- Civil engineering
- Birkenhead
- J S Williams Building Services Ltd
J S Williams Building Services Ltd
- Company number
- 15380299
- Incorporated
- 2 Jan 20242 years trading
- Registered office
- 112 Appin Road, Birkenhead, CH41 9HJ
- Nature of business
- Construction of roads and motorways; Other construction installation
J S Williams Building Services Ltd is a 2-year-old private limited company registered in Birkenhead, company number 15380299, one of 11 civil engineering contractors in Birkenhead. Its next accounts are due at Companies House on 31 October 2027, and the CT600 for the period to 31 January 2027 is due at HMRC on 31 January 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for J S Williams Building Services LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £9,870 (+55.2%) on the year before, to £28K.
- Current assets of £33K against £5,714 owed within a year: 5.9 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2026 | £28K | £33K | £5,714 | 0 | |
| 31 Jan 2025 | £18K | £28K | £10K | 0 |
Where J S Williams Building Services Ltd is registered
The registered office is in Birkenhead (CH41), in the Wirral local authority area, North West. Show CH41 9HJ on a map.
Other trade companies in CH41
- Bennetts Garage (NW) LtdMechanics and garages
- M&R Global Trading LtdCleaning companies
- Southern Rig Services UK LtdMachinery repair and installation
- NW Recovery LtdMotor traders
- J Harris & Son Roofing Services LtdRoofers
- TQ Welding Services LimitedMachinery repair and installation
- Serandib Auto Care LtdMotor traders
- Simply Sparkle LtdCleaning companies
What happens if J S Williams Building Services 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 October 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2027 to 30 Nov 2027 | £150 |
| 1 to 3 months late | 1 Dec 2027 to 31 Jan 2028 | £375 |
| 3 to 6 months late | 1 Feb 2028 to 30 Apr 2028 | £750 |
| More than 6 months late | From 1 May 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2028 | £200 |
| 3 months late | 30 Apr 2028 | another £200 |
| 6 months late | 31 Jul 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 2029 | 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
- 15380299
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 2 January 2024 (2 years ago)
- Registered office
- 112 Appin Road, Birkenhead, CH41 9HJ
- Nature of business
- Construction of roads and motorways (SIC 42110)
Other construction installation (SIC 43290) - Year end
- 31 January (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 January 2026
- Last confirmation statement
- 1 January 2026
- Previous names
- Gavin Building Property Services Ltd (until 4 Feb 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 Birkenhead
Other active civil engineering contractors registered in Birkenhead.
- Light Speed Utilities Limited2022
- Managed Mechanical Services Limited2017
- Mega Contractors Ltd2026
- Oyinda Civils UK Ltd2025
- RCK Engineering Ltd2022
- Yeti Services NW Limited2023
- Zadysse Limited2026
- Ardent Utilities Ltd2018
All civil engineering contractors in Birkenhead · All trades in Birkenhead · Civil engineering across the UK
Frequently asked questions
When are J S Williams Building Services Ltd's accounts due?
J S Williams Building Services Ltd's next accounts are due at Companies House by 31 October 2027 (in 383 days), covering the period to 31 January 2027.
When is J S Williams Building Services Ltd's CT600 due?
The CT600 for the period to 31 January 2027 is due at HMRC by 31 January 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2027.
Is J S Williams Building Services Ltd still trading?
J S Williams Building Services 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 J S Williams Building Services Ltd do?
J S Williams Building Services Ltd is registered under Construction of roads and motorways (SIC 42110); Other construction installation (SIC 43290).
How old is J S Williams Building Services Ltd?
J S Williams Building Services Ltd was incorporated on 2 January 2024, 2 years ago.
What is the penalty if J S Williams Building Services 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 J S Williams Building Services 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.