- Companies
- Plumbers and heating engineers
- Hemel Hempstead
- Abtech Heating Limited
Abtech Heating Limited
- Company number
- 03479187
- Incorporated
- 5 Dec 199728 years trading
- Registered office
- The Courtyard 77-79, Marlowes, Hemel Hempstead, HP1 1LF
- Nature of business
- Plumbing, heat and air-conditioning installation
Abtech Heating Limited is a 28-year-old private limited company registered in Hemel Hempstead, company number 03479187, one of 89 plumbing and heating companies in Hemel Hempstead. 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 £17K on the year before, to -£17K.
- Net assets rose in 5 of 9 year-on-year comparisons on record.
- Current assets of £4,303 against £24K owed within a year: 0.2 times cover.
- 1 employee on average, up from 0 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 | -£17K | £4,303 | £24K | 1 | |
| 31 Dec 2024 | £83 | £23K | £35K | 0 | |
| 31 Dec 2023 | £11K | £30K | £33K | 0 | |
| 31 Dec 2022 | £5,617 | £28K | £13K | 0 | |
| 31 Dec 2021 | -£1,221 | £35K | £24K | 0 | |
| 31 Dec 2020 | -£13K | £27K | £27K | 0 | |
| 31 Dec 2019 | £155 | £36K | £37K | 0 | |
| 31 Dec 2018 | £5,038 | £38K | £35K | ||
| 31 Dec 2017 | £1,536 | £33K | £31K | ||
| 31 Dec 2016 | £394 | £43K | £42K |
Where Abtech Heating Limited is registered
The registered office is in Hemel Hempstead (HP1), in the Dacorum local authority area, East of England. Show HP1 1LF on a map.
Other trade companies in HP1
- Lem Road Tanker Repairs LtdMachinery repair and installation
- Dover Heights Group LtdJoiners and carpenters
- Trusentri LtdElectricians
- Cecil Property Group LimitedProperty developers
- Queensway Motors LtdMotor traders
- W.Parkins Building Services LtdBuilders
- Harvey & Sons Fire and Electrical LimitedElectricians
- Buzzard Fire Protection LtdSpecialist contractors
Also registered at this address
1 other company uses the same registered office as Abtech Heating Limited.
- Hyland Technical Services LimitedFinishing trades
What happens if Abtech 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 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
- 03479187
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 December 1997 (28 years ago)
- Registered office
- The Courtyard 77-79, Marlowes, Hemel Hempstead, HP1 1LF
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 December (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 December 2025
- Last confirmation statement
- 5 December 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 Hemel Hempstead
Other active plumbing and heating companies registered in Hemel Hempstead.
- Active Heating & Renewables Ltd2009
- Alecra Limited1984
- Alternative Plumbing and Heating Ltd2019
- Amc Air Conditioning Ltd2022
- Andreev Plumbing Limited2016
- Aquadan Ltd2025
- Berkhamsted Heating Ltd2014
- Birdsall Technical Services Limited2025
All plumbing and heating companies in Hemel Hempstead · All trades in Hemel Hempstead · Plumbers and heating engineers across the UK
Frequently asked questions
When are Abtech Heating Limited's accounts due?
Abtech Heating Limited's next accounts are due at Companies House by 30 September 2027 (in 353 days), covering the period to 31 December 2026.
When is Abtech Heating Limited'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 Abtech Heating Limited still trading?
Abtech 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 Abtech Heating Limited do?
Abtech Heating Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Abtech Heating Limited?
Abtech Heating Limited was incorporated on 5 December 1997, 28 years ago.
What is the penalty if Abtech 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 Abtech 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.