- Companies
- Installers
- Dartford
- Hartman Engineering Limited
Hartman Engineering Limited
- Company number
- 03946902
- Incorporated
- 14 Mar 200026 years trading
- Registered office
- Charles Lake House Claire Causeway, Crossways Business Park, Dartford, Kent, DA2 6QA
- Nature of business
- Other construction installation
Hartman Engineering Limited is a 26-year-old private limited company registered in Dartford, company number 03946902, one of 80 installation companies (insulation, lifts, shutters and similar) in Dartford. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 £110K (-48.9%) on the year before, to £115K.
- Net assets rose in 1 of 3 year-on-year comparisons on record.
- Current assets of £393K against £340K owed within a year: 1.2 times cover.
- 20 employees on average, up from 19 the year before.
- Balance sheets on record for 4 years, 2022 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £115K | £23K | £393K | £340K | 20 |
| 31 Mar 2024 | £225K | £200K | £535K | £379K | 19 |
| 31 Mar 2023 | £279K | £124K | £510K | £270K | 18 |
| 31 Mar 2022 | £181K | £63K | £471K | £360K | 18 |
Who runs and owns Hartman Engineering Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (4)
| Name | Role | Appointed |
|---|---|---|
| B*** H*** | Director | Mar 2000 |
| G*** M*** | Director | Mar 2000 |
| G*** H*** | Director | Apr 2008 |
| B*** H*** | Secretary | Mar 2000 |
1 former officer
| Name | Role | Appointed | Left |
|---|---|---|---|
| Swift Incorporations Limited | Corporate Nominee Secretary | Mar 2000 | Mar 2000 |
Person with significant control
Charges (secured borrowing)
1 of 1 registered charge is outstanding. A charge is security a lender takes over a company's assets, typically for a loan, mortgage or asset finance.
| Lender | Status | Registered |
|---|---|---|
| National Westminster Bank PLC | Outstanding | Apr 2010 |
Where Hartman Engineering Limited is registered
The registered office is in Dartford (DA2), in the Dartford local authority area, South East. Show DA2 6QA on a map.
Other trade companies in DA2
- Alija Construction LtdBuilders
- P&E Premier Holdings LimitedProperty developers
- MCP Motors LtdMechanics and garages
- Lude LtdFinishing trades
- Netti's Cleaning LtdCleaning companies
- Inspired Gardens & Landscapes Kent LtdLandscapers and gardeners
- Elite FM LimitedFacilities management
- Cleansl8 LtdCleaning companies
Also registered at this address
19 other companies use the same registered office as Hartman Engineering Limited.
- 2Pep LimitedProperty developers
- A S North LimitedElectricians
- Aa Konsult LtdBuilders
- Ambassador Services LimitedCleaning companies
- Astrosyn Contract Interiors LimitedFloor and wall tilers
- CDH Cleaning Services LtdCleaning companies
- Deerleap Properties LimitedProperty developers
- Grounds Maintenance LimitedLandscapers and gardeners
- Hartman Engineering (Holdings) LimitedInstallers
- Jameson Carter LtdMotor traders
- JHB Investments LimitedProperty developers
- Maintenance Access Company Scaffolding LimitedScaffolders
- Melbond (Crossways) LimitedProperty developers
- Melbond Properties LimitedProperty developers
- Palmer Brothers (London) LimitedCivil engineering
- Skyform LimitedSpecialist contractors
- Streatfields LimitedPlumbers and heating engineers
- Trojan Services UK LimitedElectricians
- Waterbeach Property Company Ltd.Property developers
What happens if Hartman Engineering 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 31 December 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 03946902
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 14 March 2000 (26 years ago)
- Registered office
- Charles Lake House Claire Causeway, Crossways Business Park, Dartford, Kent, DA2 6QA
- Nature of business
- Other construction installation (SIC 43290)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 14 March 2026
- Charges (mortgages)
- 1 outstanding of 1 registered
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 Dartford
Other active installation companies (insulation, lifts, shutters and similar) registered in Dartford.
- Imor Construction Ltd2024
- J H G London Ltd2025
- JBM Property Services Ltd2018
- JW Pipework Services Limited2023
- K and A Interiors Ltd2005
- L G Rogers Master Carpenter Limited2016
- Larkstone Kitchen & Bathroom Installations Ltd2015
- LG Lift Solutions Ltd2025
All installation companies (insulation, lifts, shutters and similar) in Dartford · All trades in Dartford · Installers across the UK
Frequently asked questions
When are Hartman Engineering Limited's accounts due?
Hartman Engineering Limited's next accounts are due at Companies House by 31 December 2026 (in 80 days), covering the period to 31 March 2026.
When is Hartman Engineering Limited's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is Hartman Engineering Limited still trading?
Hartman Engineering 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 Hartman Engineering Limited do?
Hartman Engineering Limited is registered under Other construction installation (SIC 43290).
How old is Hartman Engineering Limited?
Hartman Engineering Limited was incorporated on 14 March 2000, 26 years ago.
Who runs Hartman Engineering Limited?
Hartman Engineering Limited has 3 active directors, the longest-serving appointed in Mar 2000. Their names and service addresses are on the Companies House register.
Who owns Hartman Engineering Limited?
One person or company has significant control of Hartman Engineering Limited: Hartman Engineering (Holdings) Limited (owns 75% or more of the shares).
What is the penalty if Hartman Engineering 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 Hartman Engineering 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.