- Companies
- Plumbers and heating engineers
- Brentwood
- 1ST Cool Limited
1ST Cool Limited
- Company number
- 04654682
- Incorporated
- 3 Feb 200323 years trading
- Registered office
- 3 Dunmow Gardens, West Horndon, Brentwood, CM13 3NL
- Nature of business
- Plumbing, heat and air-conditioning installation
1ST Cool Limited is a 23-year-old private limited company registered in Brentwood, company number 04654682, one of 84 plumbing and heating companies in Brentwood. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 31 December 2026 is due at HMRC on 31 December 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 £97K on the year before, to £98K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £202K against £111K owed within a year: 1.8 times cover.
- 4 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £98K | £202K | £111K | 4 | |
| 31 Dec 2024 | £1,663 | £100K | £90K | 4 | |
| 31 Dec 2023 | £3,287 | £120K | £84K | 2 | |
| 31 Dec 2022 | £3,283 | £36K | £143K | £89K | 2 |
| 31 Dec 2021 | £243 | £13K | £177K | £86K | 3 |
| 31 Dec 2020 | -£16K | £1,382 | £113K | £68K | 3 |
| 31 Dec 2019 | £109 | £133K | £136K | ||
| 31 Dec 2018 | £1,800 | £118K | £115K | ||
| 31 Dec 2017 | £854 | £181K | £172K | ||
| 31 Dec 2016 | £2,240 | £165K | £170K |
Where 1ST Cool Limited is registered
The registered office is in Brentwood (CM13), in the Brentwood local authority area, East of England. Show CM13 3NL on a map.
Other trade companies in CM13
- Van & Car Self Drive LtdMotor traders
- Marsh Harrier Developments LtdProperty developers
- Motor Dealer Sales LtdMotor traders
- Electrical PN LtdElectricians
- Torrtec LtdPlumbers and heating engineers
- Flushed Through Drainage Services LtdPlumbers and heating engineers
- RJFD Electrical LtdCivil engineering
- Welsted LtdJoiners and carpenters
Also registered at this address
5 other companies use the same registered office as 1ST Cool Limited.
- Alm Contracts Essex LtdElectricians
- B and M Builders LimitedFinishing trades
- James Building Contractors LimitedFinishing trades
- Maintain Group LtdInstallers
- S & D Motorcycles LimitedMotor traders
What happens if 1ST Cool 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 September 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Oct 2027 to 31 Oct 2027 | £150 |
| 1 to 3 months late | 1 Nov 2027 to 31 Dec 2027 | £375 |
| 3 to 6 months late | 1 Jan 2028 to 31 Mar 2028 | £750 |
| More than 6 months late | From 1 Apr 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jan 2028 | £200 |
| 3 months late | 31 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Dec 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
- 04654682
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 3 February 2003 (23 years ago)
- Registered office
- 3 Dunmow Gardens, West Horndon, Brentwood, CM13 3NL
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 31 January 2026
- Charges (mortgages)
- 1 outstanding of 3 registered
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 Brentwood
Other active plumbing and heating companies registered in Brentwood.
- A Kilian Services Ltd2011
- A-Source Plumbing Ltd2011
- A.Blake Construction Ltd2024
- Abacus Ac Solutions Ltd2011
- Afb Mechanical Ltd2021
- Aquaheat (Essex) Limited2022
- Axo Services Ltd2018
- Barrett Environmental Services Limited2002
All plumbing and heating companies in Brentwood · All trades in Brentwood · Plumbers and heating engineers across the UK
Frequently asked questions
When are 1ST Cool Limited's accounts due?
1ST Cool Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is 1ST Cool Limited's CT600 due?
The CT600 for the period to 31 December 2026 is due at HMRC by 31 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is 1ST Cool Limited still trading?
1ST Cool 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 1ST Cool Limited do?
1ST Cool Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is 1ST Cool Limited?
1ST Cool Limited was incorporated on 3 February 2003, 23 years ago.
What is the penalty if 1ST Cool 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 1ST Cool 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.