- Companies
- Builders
- Welwyn Garden City
- Eco Smart Installations Limited
Eco Smart Installations Limited
- Company number
- 14478048
- Incorporated
- 11 Nov 20223 years trading
- Registered office
- 28 Leigh Common, Welwyn Garden City, Hertfordshire, AL7 4NJ
- Nature of business
- Construction of domestic buildings; Electrical installation; Plumbing, heat and air-conditioning installation; Other specialised construction activities n.e.c.
Eco Smart Installations Limited is a 3-year-old private limited company registered in Welwyn Garden City, company number 14478048, one of 53 building contractors in Welwyn Garden City. 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 £7,239 (+58.3%) on the year before, to -£5,176.
- Current assets of £12K against £20K owed within a year: 0.6 times cover.
- 1 employee on average during the year.
- Balance sheets on record for 3 years, 2023 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 30 Nov 2025 | -£5,176 | £12K | £20K | 1 | |
| 30 Nov 2024 | -£12K | £4,467 | £20K | 1 | |
| 30 Nov 2023 | -£6,374 | £2,830 | £13K | 1 |
Who runs and owns Eco Smart Installations Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officer
| Name | Role | Appointed |
|---|---|---|
| A*** I*** | Director | Nov 2022 |
Person with significant control
Where Eco Smart Installations Limited is registered
The registered office is in Welwyn Garden City (AL7), in the Welwyn Hatfield local authority area, East of England. Show AL7 4NJ on a map.
Other trade companies in AL7
- Mechanicalwise LtdInstallers
- Azalea Services LimitedSpecialist contractors
- Malmech and Mannion LimitedMechanics and garages
- T&D Construction Group LtdFinishing trades
- Vertec Roofing and Building LtdRoofers
- Selectlane LtdMotor traders
- Af Pressure Washing LtdCleaning companies
- Jet Professional LtdCleaning companies
What happens if Eco Smart Installations 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 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
- 14478048
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 11 November 2022 (3 years ago)
- Registered office
- 28 Leigh Common, Welwyn Garden City, Hertfordshire, AL7 4NJ
- Nature of business
- Construction of domestic buildings (SIC 41202)
Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220)
Other specialised construction activities n.e.c. (SIC 43999) - Year end
- 30 November (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 30 November 2025
- Last confirmation statement
- 10 November 2025
- Previous names
- Ai Contractors Limited (until 8 Dec 2023)
Filing notes for building contractors
Building companies often run the Construction Industry Scheme as a contractor, a subcontractor or both. CIS deductions suffered during the year are set against the PAYE bill, and any unrecovered balance at the year end matters when the accounts are drawn up.
Similar companies in Welwyn Garden City
Other active building contractors registered in Welwyn Garden City.
- Elmwood PM Ltd2011
- Esa Spread Development Limited2018
- Footings Limited2024
- G Way Contracts Ltd2019
- Gidi Ltd2025
- Ground Construction Plant Hire Limited2011
- GS Construction & Design Ltd2022
- Hertssparky Ltd2026
All building contractors in Welwyn Garden City · All trades in Welwyn Garden City · Builders across the UK
Frequently asked questions
When are Eco Smart Installations Limited's accounts due?
Eco Smart Installations Limited's next accounts are due at Companies House by 31 August 2027 (in 323 days), covering the period to 30 November 2026.
When is Eco Smart Installations Limited'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 Eco Smart Installations Limited still trading?
Eco Smart Installations 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 Eco Smart Installations Limited do?
Eco Smart Installations Limited is registered under Construction of domestic buildings (SIC 41202); Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220); Other specialised construction activities n.e.c. (SIC 43999).
How old is Eco Smart Installations Limited?
Eco Smart Installations Limited was incorporated on 11 November 2022, 3 years ago.
Who runs Eco Smart Installations Limited?
Eco Smart Installations Limited has 1 active director, the longest-serving appointed in Nov 2022. Their names and service addresses are on the Companies House register.
Who owns Eco Smart Installations Limited?
One person or company has significant control of Eco Smart Installations Limited: an individual (owns 75% or more of the shares).
What is the penalty if Eco Smart Installations 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 Eco Smart Installations 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.