- Companies
- Electricians
- Welwyn Garden City
- SM Builders & Electricians Ltd
SM Builders & Electricians Ltd
- Company number
- 15579481
- Incorporated
- 20 Mar 20242 years trading
- Registered office
- 112 the Commons, Welwyn Garden City, AL7 4SB
- Nature of business
- Electrical installation; Other building completion and finishing
SM Builders & Electricians Ltd is a 2-year-old private limited company registered in Welwyn Garden City, company number 15579481, one of 50 electrical contractors in Welwyn Garden City. Its next accounts are due at Companies House on 31 December 2027, and the CT600 for the period to 31 March 2027 is due at HMRC on 31 March 2028.
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 £1,510 (-94.7%) on the year before, to £85.
- Current assets of £547 against £14K owed within a year: 0.0 times cover.
- 2 employees on average during the year.
- Balance sheets on record for 2 years, 2025 to 2026.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2026 | £85 | £547 | £14K | 2 | |
| 31 Mar 2025 | £1,595 | £991 | £19K | 2 |
Who runs and owns SM Builders & Electricians Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| N*** G*** | Director | Mar 2024 |
| S*** G*** | Director | Mar 2024 |
People with significant control (2)
Where SM Builders & Electricians Ltd is registered
The registered office is in Welwyn Garden City (AL7), in the Welwyn Hatfield local authority area, East of England. Show AL7 4SB 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 SM Builders & Electricians 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 December 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2028 to 31 Jan 2028 | £150 |
| 1 to 3 months late | 1 Feb 2028 to 31 Mar 2028 | £375 |
| 3 to 6 months late | 1 Apr 2028 to 30 Jun 2028 | £750 |
| More than 6 months late | From 1 Jul 2028 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2028 | £200 |
| 3 months late | 30 Jun 2028 | another £200 |
| 6 months late | 30 Sep 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 2029 | 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
- 15579481
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 20 March 2024 (2 years ago)
- Registered office
- 112 the Commons, Welwyn Garden City, AL7 4SB
- Nature of business
- Electrical installation (SIC 43210)
Other building completion and finishing (SIC 43390) - Year end
- 31 March (accounting reference date)
- Accounts type
- Micro-entity
- Last accounts made up to
- 31 March 2026
- Last confirmation statement
- 9 March 2026
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Welwyn Garden City
Other active electrical contractors registered in Welwyn Garden City.
- Spear Electrical (London) Ltd2016
- Steven Setterfield Ltd2014
- TMG Electrics Ltd2021
- Warmspark Building Services Ltd2023
- Wayne Clark Electrical Limited2015
- WDL Electrical Ltd2021
- Welwyn-Proved Installations Limited2010
- Wills HVAC Services Ireland Ltd2026
All electrical contractors in Welwyn Garden City · All trades in Welwyn Garden City · Electricians across the UK
Frequently asked questions
When are SM Builders & Electricians Ltd's accounts due?
SM Builders & Electricians Ltd's next accounts are due at Companies House by 31 December 2027 (in 444 days), covering the period to 31 March 2027.
When is SM Builders & Electricians Ltd's CT600 due?
The CT600 for the period to 31 March 2027 is due at HMRC by 31 March 2028, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2028.
Is SM Builders & Electricians Ltd still trading?
SM Builders & Electricians 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 SM Builders & Electricians Ltd do?
SM Builders & Electricians Ltd is registered under Electrical installation (SIC 43210); Other building completion and finishing (SIC 43390).
How old is SM Builders & Electricians Ltd?
SM Builders & Electricians Ltd was incorporated on 20 March 2024, 2 years ago.
Who runs SM Builders & Electricians Ltd?
SM Builders & Electricians Ltd has 2 active directors, the longest-serving appointed in Mar 2024. Their names and service addresses are on the Companies House register.
Who owns SM Builders & Electricians Ltd?
2 people or companies have significant control of SM Builders & Electricians Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if SM Builders & Electricians 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 SM Builders & Electricians 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.