- Companies
- Installers
- London
- Effector Maintenance Limited
Effector Maintenance Limited
- Company number
- 10603509
- Incorporated
- 6 Feb 20179 years trading
- Registered office
- 283 Westferry Road, London, E14 3RS
- Nature of business
- Other construction installation
Effector Maintenance Limited is a 9-year-old private limited company registered in London, company number 10603509, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £5,225 (+28.9%) on the year before, to £23K.
- Net assets rose in 4 of 7 year-on-year comparisons on record.
- Current assets of £31K against £4,901 owed within a year: 6.3 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 28 Feb 2025 | £23K | £31K | £4,901 | 1 | |
| 28 Feb 2024 | £18K | £22K | £3,612 | 1 | |
| 28 Feb 2023 | £13K | £15K | £2,000 | 1 | |
| 28 Feb 2022 | £17K | £20K | £2,000 | 1 | |
| 28 Feb 2021 | £100 | ||||
| 28 Feb 2020 | £4,934 | £2,435 | £0 | ||
| 28 Feb 2019 | £4,934 | £6,496 | £3,216 | ||
| 28 Feb 2018 | £100 |
Where Effector Maintenance Limited is registered
The registered office is in London (E14), in the Tower Hamlets local authority area, London. Show E14 3RS on a map.
Other trade companies in E14
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- London Dev Sittingbourne LimitedProperty developers
- London Dev Dagenham LimitedProperty developers
- JK Motor Vehicles LtdMotor traders
- Eilunio LtdProperty developers
- Gasi Cleaning Co LtdCleaning companies
- Lustrouk LimitedCleaning companies
Also registered at this address
10 other companies use the same registered office as Effector Maintenance Limited.
- Daily Delivery Maintenance LimitedGroundworks and demolition
- Earth Elements Minerals LimitedProperty developers
- Effector LimitedCleaning companies
- McLarens (London) LimitedGlaziers
- Merchant Facilities Management LimitedFinishing trades
- N E P & H LimitedPlumbers and heating engineers
- Prime Build Construction LimitedFinishing trades
- Southern Construction (Newbuild) LimitedBuilders
- Su Builders LimitedProperty developers
- The Electric Cab Company LimitedMechanics and garages
What happens if Effector Maintenance 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 30 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 10603509
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 6 February 2017 (9 years ago)
- Registered office
- 283 Westferry Road, London, E14 3RS
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 28 February (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 5 February 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.
- Ehs Facade Access Ltd2010
- Eic Construction Ltd2022
- Ejv Lift Services Ltd2019
- Eks Renovations Ltd2024
- El Mono Rope Access Ltd2025
- Elaf Construction Limited2023
- Elc Services Ltd2020
- Elda Interior Ltd2023
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Effector Maintenance Limited's accounts due?
Effector Maintenance Limited's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Effector Maintenance Limited's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Effector Maintenance Limited still trading?
Effector Maintenance 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 Effector Maintenance Limited do?
Effector Maintenance Limited is registered under Other construction installation (SIC 43290).
How old is Effector Maintenance Limited?
Effector Maintenance Limited was incorporated on 6 February 2017, 9 years ago.
What is the penalty if Effector Maintenance 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 Effector Maintenance 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.