- Companies
- Plumbers and heating engineers
- Newtownards
- DJH Boiler Services Ltd
DJH Boiler Services Ltd
- Company number
- NI657063
- Incorporated
- 12 Nov 20187 years trading
- Registered office
- 30 Ardvanagh Road, Conlig, Newtownards, BT23 7XA
- Nature of business
- Plumbing, heat and air-conditioning installation
DJH Boiler Services Ltd is a 7-year-old private limited company registered in Newtownards, company number NI657063, one of 21 plumbing and heating companies in Newtownards. Its next accounts are due at Companies House on 31 August 2027, and the CT600 for the period to 30 November 2026 is due at HMRC on 30 November 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 £17K (+35.3%) on the year before, to £65K.
- Net assets rose in 6 of 6 year-on-year comparisons on record.
- Current assets of £77K against £17K owed within a year: 4.7 times cover.
- 3 employees on average, up from 2 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 |
|---|---|---|---|---|---|
| 30 Nov 2025 | £65K | £77K | £17K | 3 | |
| 30 Nov 2024 | £48K | £60K | £7,886 | 2 | |
| 30 Nov 2023 | £40K | £50K | £14K | 2 | |
| 30 Nov 2022 | £29K | £25K | £5,689 | 2 | |
| 30 Nov 2021 | £26K | £42K | £5,085 | 1 | |
| 30 Nov 2020 | £25K | £43K | £7,745 | 3 | |
| 30 Nov 2019 | £13K | £26K | £4,214 | 2 |
Where DJH Boiler Services Ltd is registered
The registered office is in Newtownards (BT23), in the Ards and North Down local authority area, Northern Ireland. Show BT23 7XA on a map.
Other trade companies in BT23
- Ards Comber Boiler Services LimitedPlumbers and heating engineers
- B2B Brickwork LtdBuilders
- Paxco LimitedMotor traders
- Valtori LtdMotor traders
- DJH Boiler Services (2026) LtdPlumbers and heating engineers
- SK Motor Trade & Tools LtdMotor traders
- Redline Vehicle Repairs LtdMechanics and garages
- JSW Siphonic Roof Drainage LtdRoofers
Also registered at this address
1 other company uses the same registered office as DJH Boiler Services Ltd.
- DJH Boiler Services (2026) LtdPlumbers and heating engineers
What happens if DJH Boiler Services 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 31 August 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Sep 2027 to 30 Sep 2027 | £150 |
| 1 to 3 months late | 1 Oct 2027 to 30 Nov 2027 | £375 |
| 3 to 6 months late | 1 Dec 2027 to 29 Feb 2028 | £750 |
| More than 6 months late | From 1 Mar 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Dec 2027 | £200 |
| 3 months late | 29 Feb 2028 | another £200 |
| 6 months late | 30 May 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 30 Nov 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
- NI657063
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 12 November 2018 (7 years ago)
- Registered office
- 30 Ardvanagh Road, Conlig, Newtownards, BT23 7XA
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 7 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 Newtownards
Other active plumbing and heating companies registered in Newtownards.
- Gilnahirk Boiler Services Ltd2026
- GRS Plumbing and Heating Ltd2023
- Hydrogas(N.I.) Ltd2021
- J James N.I. Ltd2025
- Jo Leonard Plumbing and Heating Contractor Ltd2019
- Killinchy Plumbing & Heating Ltd2026
- Matthew McDowell Heating & Plumbing Ltd2017
- Orcas Systems Ltd1997
All plumbing and heating companies in Newtownards · All trades in Newtownards · Plumbers and heating engineers across the UK
Frequently asked questions
When are DJH Boiler Services Ltd's accounts due?
DJH Boiler Services Ltd's next accounts are due at Companies House by 31 August 2027 (in 322 days), covering the period to 30 November 2026.
When is DJH Boiler Services Ltd's CT600 due?
The CT600 for the period to 30 November 2026 is due at HMRC by 30 November 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 September 2027.
Is DJH Boiler Services Ltd still trading?
DJH Boiler Services Ltd 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 DJH Boiler Services Ltd do?
DJH Boiler Services Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is DJH Boiler Services Ltd?
DJH Boiler Services Ltd was incorporated on 12 November 2018, 7 years ago.
What is the penalty if DJH Boiler Services 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 DJH Boiler Services Ltd 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.