- Companies
- Plumbers and heating engineers
- St Asaph
- N W Biomass Ltd
N W Biomass Ltd
- Company number
- 09422292
- Incorporated
- 4 Feb 201511 years trading
- Registered office
- 32 Llys Edmund Prys, ST. Asaph Business Park, St Asaph, Denbighshire, LL17 0JA
- Nature of business
- Plumbing, heat and air-conditioning installation; Other retail sale not in stores, stalls or markets
N W Biomass Ltd is a 11-year-old private limited company registered in St Asaph, company number 09422292, one of 10 plumbing and heating companies in St Asaph. 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 down £27K (-41.5%) on the year before, to £38K.
- Net assets rose in 2 of 8 year-on-year comparisons on record.
- Current assets of £127K against £128K owed within a year: 1.0 times cover.
- 2 employees on average, down from 3 the year before.
- 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 | £38K | £65K | £127K | £128K | 2 |
| 31 Dec 2024 | £65K | £35K | £67K | £53K | 3 |
| 31 Dec 2023 | £80K | £113K | £138K | £108K | 2 |
| 31 Dec 2022 | £6,703 | £45K | £55K | £76K | 2 |
| 31 Dec 2021 | £11K | £10K | £51K | £71K | 2 |
| 31 Dec 2020 | £17K | £81K | £107K | £109K | 2 |
| 31 Dec 2019 | £113 | £4,372 | £8,093 | £23K | |
| 31 Dec 2018 | £1,296 | £16K | £20K | £39K | |
| 31 Dec 2017 | £10K | £35K | £46K | £49K | |
| 31 Dec 2016 | £24K |
Where N W Biomass Ltd is registered
The registered office is in St Asaph (LL17), in the Denbighshire local authority area, Wales. Show LL17 0JA on a map.
Other trade companies in LL17
- Neil's Wheels Tyre Services LtdMechanics and garages
- Baxter H&S LtdCivil engineering
- Corefortress Data Ltd.Civil engineering
- SSX Construction LtdBuilders
- Rotorix LtdCleaning companies
- Gwyn Evans CVR LimitedMechanics and garages
- Spencer Civils LimitedCivil engineering
- Optimal Home Clean LtdCleaning companies
Shared registered office
67 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 N W Biomass Ltd 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
- 09422292
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 4 February 2015 (11 years ago)
- Registered office
- 32 Llys Edmund Prys, ST. Asaph Business Park, St Asaph, Denbighshire, LL17 0JA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
Other retail sale not in stores, stalls or markets (SIC 47990) - Year end
- 31 December (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 29 September 2026
- Previous names
- Chris Brereton Plumbing and Heating Limited (until 21 Oct 2021)
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 Asaph
Other active plumbing and heating companies registered in St Asaph.
- Renewable Green Energy Limited2021
- A. Jones & Son (Gas Services) Limited2006
- Antworx Ltd2022
- Chris Allen Plumbing & Heating Limited2013
- Excel Bathroom Solutions Ltd2025
- Excelheat Solutions Ltd2015
- Hydro Plumbing & Heating Ltd2021
- J Williams Plumbing and Heating Limited2019
All plumbing and heating companies in St Asaph · All trades in St Asaph · Plumbers and heating engineers across the UK
Frequently asked questions
When are N W Biomass Ltd's accounts due?
N W Biomass Ltd's next accounts are due at Companies House by 30 September 2027 (in 351 days), covering the period to 31 December 2026.
When is N W Biomass Ltd'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 N W Biomass Ltd still trading?
N W Biomass Ltd is listed as active on the Companies House register (checked 14 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 N W Biomass Ltd do?
N W Biomass Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220); Other retail sale not in stores, stalls or markets (SIC 47990).
How old is N W Biomass Ltd?
N W Biomass Ltd was incorporated on 4 February 2015, 11 years ago.
What is the penalty if N W Biomass Ltd 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 N W Biomass Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 14 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.