- Companies
- Civil engineering
- Stanmore
- PSN Building Services Limited
PSN Building Services Limited
- Company number
- 10686102
- Incorporated
- 23 Mar 20179 years trading
- Registered office
- 2 Mountside, Stanmore, Middlesex, HA7 2DT
- Nature of business
- Construction of other civil engineering projects n.e.c.
PSN Building Services Limited is a 9-year-old private limited company registered in Stanmore, company number 10686102, one of 37 civil engineering contractors in Stanmore. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
Key dates
Worked out from the year end and filing history on the Companies House register.
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Financial snapshot, 2026
From the balance sheet at 31 March 2026, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
PSN Building Services Limited 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 down £5,450 (-177%) on the year before, to -£2,371.
- Net assets rose in 3 of 8 year-on-year comparisons on record.
- Current assets of £4,773 against £7,144 owed within a year: 0.7 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2018 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | -£2,371 | £4,773 | £7,144 | 2 | |
| 31 Mar 2025 | £3,079 | £28K | £25K | 2 | |
| 31 Mar 2024 | -£2,101 | £18K | £9,540 | 2 | |
| 31 Mar 2023 | £53 | £28K | £8,654 | 2 | |
| 31 Mar 2022 | £3,831 | £86K | £55K | 2 | |
| 31 Mar 2021 | £283 | £65K | £29K | 2 | |
| 31 Mar 2020 | -£10K | £174 | £11K | 2 | |
| 31 Mar 2019 | -£5,132 | £1,583 | £2,759 | £9,798 | 4 |
| 31 Mar 2018 | £1,623 | £40K | £41K | 5 |
Where PSN Building Services Limited is registered
The registered office is in Stanmore (HA7), in the Harrow local authority area, London. Show HA7 2DT on a map.
Other trade companies in HA7
- Vatra Developments LtdBuilders
- Air and Waves LtdPlumbers and heating engineers
- R & R Building Services LtdFinishing trades
- Berculean BBV Ltd LtdBuilders
- Velorent LtdMotor traders
- Autex LtdMechanics and garages
- TH Motorcycles LtdMotor traders
- Ady Painting and Decorating LtdInstallers
Shared registered office
93 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 PSN Building Services 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 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 10686102
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 March 2017 (9 years ago)
- Registered office
- 2 Mountside, Stanmore, Middlesex, HA7 2DT
- Nature of business
- Construction of other civil engineering projects n.e.c. (SIC 42990)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 9 March 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 Stanmore
Other active civil engineering contractors registered in Stanmore.
- Redgate Park Services Limited2014
- Reef Construction Limited2015
- Rizlink Ltd2019
- Setpaving Ltd2023
- Swift Operations Limited2025
- Tel.Com&Construction Ltd2026
- Thames Joinery Limited2016
- Traccam Limited2020
All civil engineering contractors in Stanmore · All trades in Stanmore · Civil engineering across the UK
Frequently asked questions
When are PSN Building Services Limited's accounts due?
PSN Building Services Limited's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is PSN Building Services Limited's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is PSN Building Services Limited still trading?
PSN Building Services 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 PSN Building Services Limited do?
PSN Building Services Limited is registered under Construction of other civil engineering projects n.e.c. (SIC 42990).
How old is PSN Building Services Limited?
PSN Building Services Limited was incorporated on 23 March 2017, 9 years ago.
What is the penalty if PSN Building Services 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 PSN Building Services 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.