- Companies
- Plumbers and heating engineers
- Carlisle
- Armstrong Eco Systems Limited
Armstrong Eco Systems Limited
- Company number
- 12934008
- Incorporated
- 7 Oct 20206 years trading
- Registered office
- 6 Brunswick Street, Carlisle, Cumbria, CA1 1PN
- Nature of business
- Plumbing, heat and air-conditioning installation
Armstrong Eco Systems Limited is a 6-year-old private limited company registered in Carlisle, company number 12934008, one of 50 plumbing and heating companies in Carlisle. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 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 £35K (+47.9%) on the year before, to £107K.
- Net assets rose in 4 of 4 year-on-year comparisons on record.
- No employees reported for the latest year (directors are often not counted as employees).
- 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 Aug 2025 | £107K | £82K | £9,997 | 0 | |
| 31 Aug 2024 | £72K | £51K | £11K | 0 | |
| 31 Aug 2023 | £56K | £24K | £14K | 0 | |
| 31 Aug 2022 | £28K | £30K | £12K | 0 | |
| 31 Aug 2021 | £8,246 | £16K | £27K | 0 |
Where Armstrong Eco Systems Limited is registered
The registered office is in Carlisle (CA1), in the Cumberland local authority area, North West. Show CA1 1PN on a map.
Other trade companies in CA1
- Fine Finish Interiors LtdJoiners and carpenters
- GB Groundworks LtdCivil engineering
- Oak End Construction & Management LtdProperty developers
- GS10 Trading LimitedMotor traders
- Overbuilt UK LtdMotor traders
- Fire Door 360 LimitedJoiners and carpenters
- Carlisle Remapping LtdMechanics and garages
- Adam G Smith LimitedPlumbers and heating engineers
Shared registered office
35 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 Armstrong Eco Systems 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 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 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
- 12934008
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 2020 (6 years ago)
- Registered office
- 6 Brunswick Street, Carlisle, Cumbria, CA1 1PN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 6 October 2025
Filing notes for plumbing and heating companies
Plumbing and heating companies frequently work under CIS for main contractors and also directly for homeowners, so turnover can mix CIS and non-CIS income.
Similar companies in Carlisle
Other active plumbing and heating companies registered in Carlisle.
- Bailey and Stott Ltd2011
- Be Cool (Carlisle) Ltd2004
- Border Plumbing Services Ltd2017
- BQ Heating Limited2022
- C Carruthers & Son Ltd2010
- Caldew Plumbing & Heating Contractors Limited2001
- Carlisle Bathroom Centre Limited2018
- Carlisle Bathrooms Ltd2020
All plumbing and heating companies in Carlisle · All trades in Carlisle · Plumbers and heating engineers across the UK
Frequently asked questions
When are Armstrong Eco Systems Limited's accounts due?
Armstrong Eco Systems Limited's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Armstrong Eco Systems Limited's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Armstrong Eco Systems Limited still trading?
Armstrong Eco Systems 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 Armstrong Eco Systems Limited do?
Armstrong Eco Systems Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Armstrong Eco Systems Limited?
Armstrong Eco Systems Limited was incorporated on 7 October 2020, 6 years ago.
What is the penalty if Armstrong Eco Systems 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 Armstrong Eco Systems 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.