- Companies
- Plumbers and heating engineers
- Cambridge
- Monster Heating and Cooling Limited
Monster Heating and Cooling Limited
- Company number
- 07630431
- Incorporated
- 11 May 201115 years trading
- Registered office
- Unit C, 299 High Street, Cottenham, Cambridge, Cambridgeshire, CB24 8TX
- Nature of business
- Plumbing, heat and air-conditioning installation
Monster Heating and Cooling Limited is a 15-year-old private limited company registered in Cambridge, company number 07630431, one of 105 plumbing and heating companies in Cambridge. 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.
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 Monster Heating and Cooling LimitedOr 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 down £3,393 (-95%) on the year before, to £177.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- Current assets of £118K against £159K owed within a year: 0.7 times cover.
- 8 employees on average, down from 9 the year before.
- Balance sheets on record for 7 years, 2019 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Aug 2025 | £177 | £42K | £118K | £159K | 8 |
| 31 Aug 2024 | £3,570 | £72K | £104K | 9 | |
| 31 Aug 2023 | £19K | £81K | £80K | 8 | |
| 31 Aug 2022 | £25K | £96K | £104K | 10 | |
| 31 Aug 2021 | £27K | £91K | £80K | 7 | |
| 31 Aug 2020 | £24K | £124K | £90K | 8 | |
| 31 Aug 2019 | £12K | £63K | £83K | 9 |
Where Monster Heating and Cooling Limited is registered
The registered office is in Cambridge (CB24), in the South Cambridgeshire local authority area, East of England. Show CB24 8TX on a map.
Other trade companies in CB24
- Pro Radiant Cleaners LtdCleaning companies
- C Smith Engineering LtdMachinery repair and installation
- Mykin LimitedElectricians
- A & A Land Development LimitedBuilders
- Menzies Repairs LtdSpecialist contractors
- Adc Mechanical LtdMachinery repair and installation
- Cam Glow Cleaning LimitedCleaning companies
- Majestic Sequoia Group LtdCleaning companies
What happens if Monster Heating and Cooling 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
- 07630431
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 May 2011 (15 years ago)
- Registered office
- Unit C, 299 High Street, Cottenham, Cambridge, Cambridgeshire, CB24 8TX
- 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
- 14 May 2026
- Previous names
- Gas Monster Limited (until 29 Apr 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 Cambridge
Other active plumbing and heating companies registered in Cambridge.
- Moore's Plumbing & Heating (Cambridge) Limited2022
- Neo Plumbing Ltd2025
- Neo Plumbing Solution Limited2025
- NF Associates Limited2013
- Now Serve Limited2022
- Ottimo Bathrooms Ltd2026
- P J Brown Plumbing and Heating Limited2004
- P S Harlow Plumbing & Heating Limited2017
All plumbing and heating companies in Cambridge · All trades in Cambridge · Plumbers and heating engineers across the UK
Frequently asked questions
When are Monster Heating and Cooling Limited's accounts due?
Monster Heating and Cooling 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 Monster Heating and Cooling 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 Monster Heating and Cooling Limited still trading?
Monster Heating and Cooling 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 Monster Heating and Cooling Limited do?
Monster Heating and Cooling Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Monster Heating and Cooling Limited?
Monster Heating and Cooling Limited was incorporated on 11 May 2011, 15 years ago.
What is the penalty if Monster Heating and Cooling 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 Monster Heating and Cooling 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.