- Companies
- Installers
- London
- KNB Maintenance and Support Services Limited
KNB Maintenance and Support Services Limited
- Company number
- 15819269
- Incorporated
- 4 Jul 20242 years trading
- Registered office
- 112 Morden Road, London, SW19 3BP
- Nature of business
- Other construction installation; Management of real estate on a fee or contract basis
KNB Maintenance and Support Services Limited is a 2-year-old private limited company registered in London, company number 15819269, 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.
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Financial snapshot, 2025
From the balance sheet at 31 July 2025, as filed at Companies House.
Where KNB Maintenance and Support Services Limited is registered
The registered office is in London (SW19), in the Merton local authority area, London. Show SW19 3BP on a map.
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Also registered at this address
16 other companies use the same registered office as KNB Maintenance and Support Services Limited.
- BGDP LimitedCivil engineering
- Cav Refurbishment LimitedBuilders
- Condor Construction LimitedBuilders
- Construction UK 21 LtdInstallers
- Fastlane 7 LimitedMotor traders
- Fastlane7 Coding LimitedMotor traders
- Kansas Hadfield LtdProperty developers
- KNB Residential Lettings and Management LimitedFinishing trades
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- Peter Carradus Building Services LimitedFinishing trades
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What happens if KNB Maintenance and Support 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 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
- 15819269
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 July 2024 (2 years ago)
- Registered office
- 112 Morden Road, London, SW19 3BP
- Nature of business
- Other construction installation (SIC 43290)
Management of real estate on a fee or contract basis (SIC 68320) - Year end
- 31 July (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 3 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.
- KNK Construction Ltd2020
- Korvex Construction Ltd2026
- Kostov C&J Ltd2018
- KP + Builders Ltd2023
- Kraft Invest Ltd2026
- Kraftylocks Limited2025
- Kraken WBC Ltd2025
- Kreate Kitchens Limited2015
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Frequently asked questions
When are KNB Maintenance and Support Services Limited's accounts due?
KNB Maintenance and Support Services Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is KNB Maintenance and Support Services Limited'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 KNB Maintenance and Support Services Limited still trading?
KNB Maintenance and Support 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 KNB Maintenance and Support Services Limited do?
KNB Maintenance and Support Services Limited is registered under Other construction installation (SIC 43290); Management of real estate on a fee or contract basis (SIC 68320).
How old is KNB Maintenance and Support Services Limited?
KNB Maintenance and Support Services Limited was incorporated on 4 July 2024, 2 years ago.
What is the penalty if KNB Maintenance and Support 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 KNB Maintenance and Support 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.