- Companies
- Specialist contractors
- Sidcup
- No1Contractorlondon Limited
No1Contractorlondon Limited
- Company number
- 10039781
- Incorporated
- 3 Mar 201610 years trading
- Registered office
- 12 Hatherley Road, Sidcup, Kent, DA14 4DT
- Nature of business
- Other specialised construction activities n.e.c.
No1Contractorlondon Limited is a 10-year-old private limited company registered in Sidcup, company number 10039781, one of 92 specialist construction companies in Sidcup. Its next accounts are due at Companies House on 31 March 2027, and the CT600 for the period to 30 June 2026 is due at HMRC on 30 June 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 £94 (+51.9%) on the year before, to £275.
- Net assets rose in 5 of 8 year-on-year comparisons on record.
- Current assets of £27K against £29K owed within a year: 0.9 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 9 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Jun 2025 | £275 | £27K | £29K | 2 | |
| 31 Mar 2024 | £181 | £9,491 | £70K | £73K | 2 |
| 31 Mar 2023 | £48 | £12K | £47K | £51K | 2 |
| 31 Mar 2022 | £76 | £1,852 | £18K | £26K | 2 |
| 31 Mar 2021 | -£12K | £2,251 | £6,722 | £19K | 2 |
| 31 Mar 2020 | £585 | £5,100 | £10K | £11K | 2 |
| 31 Mar 2019 | £1,324 | £8,854 | £9,217 | 2 | |
| 31 Mar 2018 | £592 | £1,000 | £2,506 | £4,163 | 2 |
| 31 Mar 2017 | £358 | £3,500 | £4,396 | £7,037 | 1 |
Where No1Contractorlondon Limited is registered
The registered office is in Sidcup (DA14), in the Bexley local authority area, London. Show DA14 4DT on a map.
Other trade companies in DA14
- Evlor LtdElectricians
- Pfe Services LimitedElectricians
- CJM Property Services LimitedFinishing trades
- Top Local Trader LtdBuilders
- Bassett Electrical Group LimitedElectricians
- Flatline Flooring LtdFloor and wall tilers
- LDT Service's LimitedScaffolders
- Old Maidstone Road Hand Car Wash LtdMechanics and garages
Shared registered office
427 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 No1Contractorlondon 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 March 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Apr 2027 to 30 Apr 2027 | £150 |
| 1 to 3 months late | 1 May 2027 to 30 Jun 2027 | £375 |
| 3 to 6 months late | 1 Jul 2027 to 30 Sep 2027 | £750 |
| More than 6 months late | From 1 Oct 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jul 2027 | £200 |
| 3 months late | 30 Sep 2027 | another £200 |
| 6 months late | 30 Dec 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Jun 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
- 10039781
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 March 2016 (10 years ago)
- Registered office
- 12 Hatherley Road, Sidcup, Kent, DA14 4DT
- Nature of business
- Other specialised construction activities n.e.c. (SIC 43999)
- Year end
- 30 June (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 30 June 2025
- Last confirmation statement
- 2 March 2026
Filing notes for specialist construction companies
Specialist contractors often work under CIS for main contractors. Retentions held back by the customer still count towards turnover once the work is done.
Similar companies in Sidcup
Other active specialist construction companies registered in Sidcup.
- P&F Logistics Limited2023
- Pagoda Building & Maintenance Limited2005
- Palm Beech Ltd2026
- Pickle Rigging Ltd2025
- Playmore Consultancy Ltd2022
- Powell Systems Maintenance Limited2005
- PTM Combined Services Limited2024
- R&R Jointing Limited2025
All specialist construction companies in Sidcup · All trades in Sidcup · Specialist contractors across the UK
Frequently asked questions
When are No1Contractorlondon Limited's accounts due?
No1Contractorlondon Limited's next accounts are due at Companies House by 31 March 2027 (in 169 days), covering the period to 30 June 2026.
When is No1Contractorlondon Limited's CT600 due?
The CT600 for the period to 30 June 2026 is due at HMRC by 30 June 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 April 2027.
Is No1Contractorlondon Limited still trading?
No1Contractorlondon 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 No1Contractorlondon Limited do?
No1Contractorlondon Limited is registered under Other specialised construction activities n.e.c. (SIC 43999).
How old is No1Contractorlondon Limited?
No1Contractorlondon Limited was incorporated on 3 March 2016, 10 years ago.
What is the penalty if No1Contractorlondon 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 No1Contractorlondon 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.