- Companies
- Installers
- London
- F.J Builders Ltd
F.J Builders Ltd
- Company number
- 11489581
- Incorporated
- 30 Jul 20188 years trading
- Registered office
- Prospect House, 2 Athenaeum Road, London, N20 9AE
- Nature of business
- Other construction installation; Other building completion and finishing
F.J Builders Ltd is a 8-year-old private limited company registered in London, company number 11489581, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 2027.
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 F.J Builders 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 £8,717 (+7.3%) on the year before, to £129K.
- Net assets rose in 6 of 6 year-on-year comparisons on record.
- Current assets of £197K against £9,193 owed within a year: more than 10 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £129K | £197K | £9,193 | 2 | |
| 31 Jul 2024 | £120K | £181K | £202K | £45K | 2 |
| 31 Jul 2023 | £95K | £130K | £155K | £6,311 | 2 |
| 31 Jul 2022 | £85K | £143K | £157K | £35K | 2 |
| 31 Jul 2021 | £74K | £147K | £149K | £50K | 2 |
| 31 Jul 2020 | £39K | £55K | £55K | £16K | 2 |
| 31 Jul 2019 | £26K | £35K | £37K | £10K | 2 |
Where F.J Builders Ltd is registered
The registered office is in London (N20), in the Barnet local authority area, London. Show N20 9AE on a map.
Other trade companies in N20
- Ebi London Renovations LtdBuilders
- Spartan Builders LtdProperty developers
- PT Exterior Cleaning LtdCleaning companies
- Building Version Service LimitedBuilders
- Everon Services LimitedInstallers
- Lumix Safe Electrical LtdMachinery repair and installation
- Apexion Design & Build LtdBuilders
- Orchid Education and Art LtdFinishing trades
Also registered at this address
6 other companies use the same registered office as F.J Builders Ltd.
- Gly Maintenance London LtdFinishing trades
- Gzey LtdFinishing trades
- Hadley Pressure Washers LtdCleaning companies
- Murtagh Construction LtdProperty developers
- Qubic Support Services LimitedCleaning companies
- Smart Gate Trading LtdElectricians
What happens if F.J Builders 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 30 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 11489581
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 30 July 2018 (8 years ago)
- Registered office
- Prospect House, 2 Athenaeum Road, London, N20 9AE
- Nature of business
- Other construction installation (SIC 43290)
Other building completion and finishing (SIC 43390) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 29 July 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 London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Fab Mechanical Ltd2016
- Fab Productions Limited2024
- Fabs Installation Ltd2018
- Facade Design Factory Ltd2025
- Facade Guru Ltd2020
- Facades Technical Consultancy Ltd2025
- False Creek Ltd2023
- Family Flooring Services Ltd2023
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are F.J Builders Ltd's accounts due?
F.J Builders Ltd's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is F.J Builders Ltd's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is F.J Builders Ltd still trading?
F.J Builders 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 F.J Builders Ltd do?
F.J Builders Ltd is registered under Other construction installation (SIC 43290); Other building completion and finishing (SIC 43390).
How old is F.J Builders Ltd?
F.J Builders Ltd was incorporated on 30 July 2018, 8 years ago.
What is the penalty if F.J Builders 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 F.J Builders 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.