- Companies
- Installers
- Sidcup
- BMG Build Ltd
BMG Build Ltd
- Company number
- 12387129
- Incorporated
- 6 Jan 20206 years trading
- Registered office
- 12 Hatherley Road, Sidcup, Kent, DA14 4DT
- Nature of business
- Other construction installation; Other service activities n.e.c.
BMG Build Ltd is a 6-year-old private limited company registered in Sidcup, company number 12387129, one of 34 installation companies (insulation, lifts, shutters and similar) in Sidcup. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 BMG Build 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 down £571 (-45.6%) on the year before, to £682.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £3,242 against £11K owed within a year: 0.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jan 2025 | £682 | £242 | £3,242 | £11K | 1 |
| 31 Jan 2024 | £1,253 | £6,253 | £7,252 | £15K | 1 |
| 31 Jan 2023 | £840 | £667 | £1,666 | £10K | 1 |
| 31 Jan 2022 | £759 | £457 | £1,181 | £9,431 | 1 |
| 31 Jan 2021 | £6,049 | £4,336 | £4,336 | £8,297 | 1 |
Where BMG Build Ltd 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 BMG Build 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12387129
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 January 2020 (6 years ago)
- Registered office
- 12 Hatherley Road, Sidcup, Kent, DA14 4DT
- Nature of business
- Other construction installation (SIC 43290)
Other service activities n.e.c. (SIC 96090) - Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 7 November 2025
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 Sidcup
Other active installation companies (insulation, lifts, shutters and similar) registered in Sidcup.
- Brett-Smith Builders Limited2006
- Buildwright Rendering Developments Limited2024
- Cablesheer Limited2002
- Charles George Services Limited2021
- Daniell Building Contractors Limited2011
- Daniell Construction Limited2016
- DDB Construction Support Limited2023
- Dexson Contracts Ltd.2017
All installation companies (insulation, lifts, shutters and similar) in Sidcup · All trades in Sidcup · Installers across the UK
Frequently asked questions
When are BMG Build Ltd's accounts due?
BMG Build Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is BMG Build Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is BMG Build Ltd still trading?
BMG Build 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 BMG Build Ltd do?
BMG Build Ltd is registered under Other construction installation (SIC 43290); Other service activities n.e.c. (SIC 96090).
How old is BMG Build Ltd?
BMG Build Ltd was incorporated on 6 January 2020, 6 years ago.
What is the penalty if BMG Build 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 BMG Build 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.