- Companies
- Installers
- London
- Triangle Building Services Ltd
Triangle Building Services Ltd
- Company number
- 08341181
- Incorporated
- 24 Dec 201213 years trading
- Registered office
- 1 Hyde Park Gardens, London, N21 2PN
- Nature of business
- Other construction installation; Plastering; Painting; Other building completion and finishing
Triangle Building Services Ltd is a 13-year-old private limited company registered in London, company number 08341181, one of 2,278 installation companies (insulation, lifts, shutters and similar) in London. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 Triangle Building Services 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 £3,714 (+159.1%) on the year before, to £6,048.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £8,497 against £2,564 owed within a year: 3.3 times cover.
- 3 employees on average, up from 2 the year before.
- Balance sheets on record for 10 years, 2017 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £6,048 | £8,497 | £2,564 | 3 | |
| 31 Mar 2025 | £2,334 | £2,263 | £74 | 2 | |
| 31 Mar 2024 | £2,495 | £2,642 | £327 | 2 | |
| 31 Mar 2023 | £2,454 | £2,543 | £315 | 2 | |
| 31 Mar 2022 | £1,166 | £3,107 | 2 | ||
| 31 Mar 2021 | £1,513 | £4,176 | £2,580 | 1 | |
| 31 Mar 2020 | £3,006 | £2,654 | £2,654 | £119 | 1 |
| 31 Mar 2019 | £3,654 | £219 | £14K | £11K | |
| 31 Mar 2018 | £2,872 | £1,831 | £12K | £9,613 | |
| 31 Mar 2017 | £1,968 | £20K | £23K | £21K |
Where Triangle Building Services Ltd is registered
The registered office is in London (N21), in the Enfield local authority area, London. Show N21 2PN on a map.
Other trade companies in N21
- Churchill Bespoke Tailors LtdRepair services
- Art of Tiling LtdBuilders
- Profinix LimitedBuilders
- Bleachy LimitedCleaning companies
- PP Carpentry LtdBuilders
- 6 Bourne Hill LtdMechanics and garages
- Empire Assessments NVQS LtdSpecialist contractors
- Emergency Sparkz LtdElectricians
What happens if Triangle Building Services 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 08341181
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 24 December 2012 (13 years ago)
- Registered office
- 1 Hyde Park Gardens, London, N21 2PN
- Nature of business
- Other construction installation (SIC 43290)
Plastering (SIC 43310)
Painting (SIC 43341)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 24 December 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 London
Other active installation companies (insulation, lifts, shutters and similar) registered in London.
- Trinity Thermotechnology Limited2025
- TRP (London) Limited2014
- Trufix Garaglide Ltd2026
- Trustnest Group Limited2024
- Trustview Glazing Ltd2023
- Truthfulrock Ltd2019
- Tsilo Ltd2024
- TSL Maintenance Limited2018
All installation companies (insulation, lifts, shutters and similar) in London · All trades in London · Installers across the UK
Frequently asked questions
When are Triangle Building Services Ltd's accounts due?
Triangle Building Services Ltd's next accounts are due at Companies House by 31 December 2027 (in 445 days), covering the period to 31 March 2027.
When is Triangle Building Services Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is Triangle Building Services Ltd still trading?
Triangle Building Services 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 Triangle Building Services Ltd do?
Triangle Building Services Ltd is registered under Other construction installation (SIC 43290); Plastering (SIC 43310); Painting (SIC 43341); Other building completion and finishing (SIC 43390).
How old is Triangle Building Services Ltd?
Triangle Building Services Ltd was incorporated on 24 December 2012, 13 years ago.
What is the penalty if Triangle Building Services 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 Triangle Building Services 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.