- Companies
- Plumbers and heating engineers
- St Albans
- Blue Flag Cooling Services Limited
Blue Flag Cooling Services Limited
- Company number
- 07042706
- Incorporated
- 14 Oct 200916 years trading
- Registered office
- 23 Porters Wood, St Albans, Hertfordshire, AL3 6PQ
- Nature of business
- Plumbing, heat and air-conditioning installation
Blue Flag Cooling Services Limited is a 16-year-old private limited company registered in St Albans, company number 07042706, one of 18 plumbing and heating companies in St Albans. Its next accounts are due at Companies House on 31 July 2027, and the CT600 for the period to 31 October 2026 is due at HMRC on 31 October 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 down £12K (-5%) on the year before, to £221K.
- Current assets of £377K against £157K owed within a year: 2.4 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 2 years, 2024 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Oct 2025 | £221K | £284K | £377K | £157K | 3 |
| 31 Oct 2024 | £233K | £196K | £378K | £146K | 3 |
Where Blue Flag Cooling Services Limited is registered
The registered office is in St Albans (AL3), in the St Albans local authority area, East of England. Show AL3 6PQ on a map.
Other trade companies in AL3
- KS Facilities LtdCleaning companies
- Cob Flooring and Building LtdFloor and wall tilers
- Loban Joinery Solutions LimitedJoiners and carpenters
- Kee and Drew Construction LimitedBuilders
- Yavir Greenworks LimitedLandscapers and gardeners
- Iop Services LimitedCivil engineering
- Plumridge FM LtdProperty developers
- Ag Roofing Homes LimitedFinishing trades
Shared registered office
26 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 Blue Flag Cooling 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 31 July 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Aug 2027 to 31 Aug 2027 | £150 |
| 1 to 3 months late | 1 Sep 2027 to 31 Oct 2027 | £375 |
| 3 to 6 months late | 1 Nov 2027 to 31 Jan 2028 | £750 |
| More than 6 months late | From 1 Feb 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Nov 2027 | £200 |
| 3 months late | 31 Jan 2028 | another £200 |
| 6 months late | 30 Apr 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Oct 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
- 07042706
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 October 2009 (16 years ago)
- Registered office
- 23 Porters Wood, St Albans, Hertfordshire, AL3 6PQ
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 October (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 October 2025
- Last confirmation statement
- 14 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 St Albans
Other active plumbing and heating companies registered in St Albans.
- Bluewater Luxury Limited2026
- D I Smith Gas Plumbing and Heating Limited2001
- Hertfordshire Plumbing & Heating Ltd2012
- Homecare Heating Limited2000
- Limitless Boilers Limited2022
- Masters Plumbing and Heating Specialists Ltd2020
- ML Facilities Limited2023
- Nonpareil Solutions Limited2010
All plumbing and heating companies in St Albans · All trades in St Albans · Plumbers and heating engineers across the UK
Frequently asked questions
When are Blue Flag Cooling Services Limited's accounts due?
Blue Flag Cooling Services Limited's next accounts are due at Companies House by 31 July 2027 (in 291 days), covering the period to 31 October 2026.
When is Blue Flag Cooling Services Limited's CT600 due?
The CT600 for the period to 31 October 2026 is due at HMRC by 31 October 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 August 2027.
Is Blue Flag Cooling Services Limited still trading?
Blue Flag Cooling 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 Blue Flag Cooling Services Limited do?
Blue Flag Cooling Services Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Blue Flag Cooling Services Limited?
Blue Flag Cooling Services Limited was incorporated on 14 October 2009, 16 years ago.
What is the penalty if Blue Flag Cooling 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 Blue Flag Cooling 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.