- Companies
- Installers
- Neath
- Monster Heating Limited
Monster Heating Limited
- Company number
- 12473443
- Incorporated
- 20 Feb 20206 years trading
- Registered office
- 5 Lon Y Grug, Coed Darcy, Neath, SA10 6FW
- Nature of business
- Other construction installation
Monster Heating Limited is a 6-year-old private limited company registered in Neath, company number 12473443, one of 18 installation companies (insulation, lifts, shutters and similar) in Neath. Its next accounts are due at Companies House on 30 November 2026, and the CT600 for the period to 28 February 2026 is due at HMRC on 28 February 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 £465 (+0.6%) on the year before, to -£72K.
- Net assets rose in 1 of 4 year-on-year comparisons on record.
- Current assets of £1,250 against £38K owed within a year: 0.0 times cover.
- 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 |
|---|---|---|---|---|---|
| 28 Feb 2025 | -£72K | £1,250 | £38K | 0 | |
| 29 Feb 2024 | -£72K | £4,937 | £8,187 | £53K | 0 |
| 28 Feb 2023 | -£64K | £2,135 | £4,885 | £39K | 0 |
| 28 Feb 2022 | -£49K | £7,031 | £16K | 1 | |
| 28 Feb 2021 | -£1,765 | £10K | £41K | £1,200 | 0 |
Where Monster Heating Limited is registered
The registered office is in Neath (SA10), in the Neath Port Talbot local authority area, Wales. Show SA10 6FW on a map.
Other trade companies in SA10
- Gleam Cleaning Solutions LtdCleaning companies
- Laker Maintenance LtdElectricians
- South Wales Auto Keys LtdMechanics and garages
- DG Coatings LtdPainters and decorators
- Icc (SW) LtdBuilders
- Atom Solar Installations LtdElectricians
- Rapid Response Building Solutions LtdProperty developers
- Primus Brickwork LimitedSpecialist contractors
What happens if Monster Heating 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 November 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Dec 2026 to 31 Dec 2026 | £150 |
| 1 to 3 months late | 1 Jan 2027 to 28 Feb 2027 | £375 |
| 3 to 6 months late | 1 Mar 2027 to 31 May 2027 | £750 |
| More than 6 months late | From 1 Jun 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Mar 2027 | £200 |
| 3 months late | 28 May 2027 | another £200 |
| 6 months late | 28 Aug 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 28 Feb 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
- 12473443
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 February 2020 (6 years ago)
- Registered office
- 5 Lon Y Grug, Coed Darcy, Neath, SA10 6FW
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 29 February (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 28 February 2025
- Last confirmation statement
- 29 October 2025
- Previous names
- Warmer Energy Limited (until 28 Sep 2020)
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 Neath
Other active installation companies (insulation, lifts, shutters and similar) registered in Neath.
- Premier Welsh Blinds Limited2023
- RK Wales Property Management Limited2023
- Robert Lee Holland Ltd2019
- Sunshine Home Improvements Limited2012
- A to Z Roofing & Property Maintenance Ltd2026
- Affordable Quality Windows Limited2020
- Amd Construction South Wales Ltd2024
- Bailey Thomas Shutters Limited2024
All installation companies (insulation, lifts, shutters and similar) in Neath · All trades in Neath · Installers across the UK
Frequently asked questions
When are Monster Heating Limited's accounts due?
Monster Heating Limited's next accounts are due at Companies House by 30 November 2026 (in 49 days), covering the period to 28 February 2026.
When is Monster Heating Limited's CT600 due?
The CT600 for the period to 28 February 2026 is due at HMRC by 28 February 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 December 2026.
Is Monster Heating Limited still trading?
Monster Heating 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 Limited do?
Monster Heating Limited is registered under Other construction installation (SIC 43290).
How old is Monster Heating Limited?
Monster Heating Limited was incorporated on 20 February 2020, 6 years ago.
What is the penalty if Monster Heating 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 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.