- Companies
- Plumbers and heating engineers
- Darlington
- I R Waller Heating & Plumbing Limited
I R Waller Heating & Plumbing Limited
- Company number
- 10489532
- Incorporated
- 21 Nov 20169 years trading
- Registered office
- 23 School Street, Darlington, DL3 0UG
- Nature of business
- Plumbing, heat and air-conditioning installation
I R Waller Heating & Plumbing Limited is a 9-year-old private limited company registered in Darlington, company number 10489532, one of 58 plumbing and heating companies in Darlington. Its next accounts are due at Companies House on 30 September 2027, and the CT600 for the period to 30 December 2026 is due at HMRC on 30 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 £10K on the year before, to £11K.
- Net assets rose in 3 of 9 year-on-year comparisons on record.
- Current assets of £92K against £105K owed within a year: 0.9 times cover.
- 3 employees on average during the year.
- Balance sheets on record for 10 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Dec 2025 | £11K | £38K | £92K | £105K | 3 |
| 30 Dec 2024 | £830 | £6,303 | £36K | £48K | 3 |
| 31 Dec 2023 | £1,951 | £10K | £49K | £63K | 3 |
| 30 Dec 2023 | £1,951 | £10K | £49K | £63K | 3 |
| 31 Dec 2022 | £4,046 | £987 | £43K | £55K | 3 |
| 31 Dec 2021 | £5,671 | £3,145 | £20K | £35K | 2 |
| 31 Dec 2020 | £1,084 | £16K | £25K | £29K | 1 |
| 31 Dec 2019 | £199 | £6,635 | £13K | £18K | 1 |
| 31 Dec 2018 | £453 | £16K | £19K | £27K | 1 |
| 31 Dec 2017 | £633 | £11K | £15K | £25K |
Where I R Waller Heating & Plumbing Limited is registered
The registered office is in Darlington (DL3), in the Darlington local authority area, North East. Show DL3 0UG on a map.
Other trade companies in DL3
- Shine With Helen LtdCleaning companies
- RJB Consultants LtdInstallers
- Garry's Car Valeting LtdCleaning companies
- Go Elite Cleaning Services LtdCleaning companies
- BGP Property LtdProperty developers
- Frontier Energy Services LtdPlumbers and heating engineers
- Andrew Morgan Joinery LtdJoiners and carpenters
- Aburns Engineering LtdBuilders
What happens if I R Waller Heating & Plumbing 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 | 31 Dec 2027 | £200 |
| 3 months late | 30 Mar 2028 | another £200 |
| 6 months late | 30 Jun 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 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
- 10489532
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 21 November 2016 (9 years ago)
- Registered office
- 23 School Street, Darlington, DL3 0UG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 December (accounting reference date)
- Accounts type
- Unaudited abridged
- Last accounts made up to
- 30 December 2025
- Last confirmation statement
- 6 November 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 Darlington
Other active plumbing and heating companies registered in Darlington.
- James' Heating Ltd2015
- JDCK Plumbing & Heating Ltd2023
- L4 Projects Ltd2019
- Maf Plumbing Heating & Gas Services Limited2016
- Modus Technical Consulting Limited2024
- MPM Gas Services Ltd2014
- Northern Mech Limited2023
- Northstar Heating Ltd2023
All plumbing and heating companies in Darlington · All trades in Darlington · Plumbers and heating engineers across the UK
Frequently asked questions
When are I R Waller Heating & Plumbing Limited's accounts due?
I R Waller Heating & Plumbing Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 30 December 2026.
When is I R Waller Heating & Plumbing Limited's CT600 due?
The CT600 for the period to 30 December 2026 is due at HMRC by 30 December 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 October 2027.
Is I R Waller Heating & Plumbing Limited still trading?
I R Waller Heating & Plumbing 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 I R Waller Heating & Plumbing Limited do?
I R Waller Heating & Plumbing Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is I R Waller Heating & Plumbing Limited?
I R Waller Heating & Plumbing Limited was incorporated on 21 November 2016, 9 years ago.
What is the penalty if I R Waller Heating & Plumbing 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 I R Waller Heating & Plumbing 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.