- Companies
- Electricians
- Redhill
- Mercury Power Limited
Mercury Power Limited
- Company number
- 08590503
- Incorporated
- 1 Jul 201313 years trading
- Registered office
- Robert Denholm House Bletchingley Road, Nutfield, Redhill, RH1 4HW
- Nature of business
- Electrical installation
Mercury Power Limited is a 13-year-old private limited company registered in Redhill, company number 08590503, one of 74 electrical contractors in Redhill. Its next accounts are due at Companies House on 30 April 2027, and the CT600 for the period to 31 July 2026 is due at HMRC on 31 July 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 £144K (+31.1%) on the year before, to £607K.
- Net assets rose in 6 of 7 year-on-year comparisons on record.
- Current assets of £2.9M against £2.5M owed within a year: 1.1 times cover.
- 27 employees on average, up from 25 the year before.
- Balance sheets on record for 8 years, 2018 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Jul 2025 | £607K | £1.1M | £2.9M | £2.5M | 27 |
| 31 Jul 2024 | £463K | £366K | £3.6M | £3.1M | 25 |
| 31 Jul 2023 | £439K | £311K | £1.9M | £1.3M | 27 |
| 31 Jul 2022 | £402K | £646K | £2.3M | £1.7M | 26 |
| 31 Jul 2021 | £422K | £531K | £2.3M | £1.6M | 29 |
| 31 Jul 2020 | £413K | £777K | £2.6M | £1.9M | 26 |
| 31 Jul 2019 | £318K | £212K | £1.7M | £1.5M | 25 |
| 31 Jul 2018 | £268K | £266K | £974K | £736K | 22 |
Public contracts won
Mercury Power Limited has 3 public sector contract awards on record; the ones with their own published value total £145K, from 2017 to 2018. Source: Contracts Finder and Find a Tender award notices. 1 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- UK Shared Business Services Limited2 awards
- Portsmouth City Council1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| UK Shared Business Services Limited | UK SBS FM18041 ATS Panel Modification | £30K | 12 Mar 2018 |
| UK Shared Business Services Limited | UK SBS FM17093 Generator Modifications | £115K | 10 Jan 2018 |
| Portsmouth City Council | Supply of UPS for Portsmouth International Port - AWARD | 10 Feb 2017 |
Where Mercury Power Limited is registered
The registered office is in Redhill (RH1), in the Tandridge local authority area, South East. Show RH1 4HW on a map.
Other trade companies in RH1
- Willows Property Services LtdCleaning companies
- Rustic Civil LtdBuilders
- Redmeres LtdInstallers
- CTC Maintenance Services LtdPainters and decorators
- Mercury Mechanical LimitedElectricians
- Gotoroofingandguttering LtdRoofers
- Fine Cut Carpentry and Construction LimitedInstallers
- Sixes Carpentry LimitedJoiners and carpenters
Also registered at this address
6 other companies use the same registered office as Mercury Power Limited.
- Bondvale Homes (Westwood Stores) South Godstone LtdProperty developers
- Formosa Plumbing & Bathroom Specialists LtdPlumbers and heating engineers
- Geo Builds LtdFinishing trades
- Mercury Mechanical LimitedElectricians
- Oceanix International LtdMachinery repair and installation
- Tillbrook Estates LimitedProperty developers
What happens if Mercury Power 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 April 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 May 2027 to 31 May 2027 | £150 |
| 1 to 3 months late | 1 Jun 2027 to 31 Jul 2027 | £375 |
| 3 to 6 months late | 1 Aug 2027 to 31 Oct 2027 | £750 |
| More than 6 months late | From 1 Nov 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Aug 2027 | £200 |
| 3 months late | 31 Oct 2027 | another £200 |
| 6 months late | 31 Jan 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jul 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
- 08590503
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 1 July 2013 (13 years ago)
- Registered office
- Robert Denholm House Bletchingley Road, Nutfield, Redhill, RH1 4HW
- Nature of business
- Electrical installation (SIC 43210)
- Year end
- 31 July (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 July 2025
- Last confirmation statement
- 1 July 2026
- Charges (mortgages)
- 1 outstanding of 2 registered
- Previous names
- Modular Power Limited (until 27 Dec 2013)
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 Redhill
Other active electrical contractors registered in Redhill.
- MG Electrical (Surrey) Limited2005
- Mindful Electrical Ltd2023
- N.J. Richens Electrical Limited2010
- Oak Fire & Security Ltd2022
- Orlanix Limited2003
- R I Electrical Ltd2016
- Rcoc Electrical Limited2023
- Red Dragon Electrical Group Ltd2026
All electrical contractors in Redhill · All trades in Redhill · Electricians across the UK
Frequently asked questions
When are Mercury Power Limited's accounts due?
Mercury Power Limited's next accounts are due at Companies House by 30 April 2027 (in 199 days), covering the period to 31 July 2026.
When is Mercury Power Limited's CT600 due?
The CT600 for the period to 31 July 2026 is due at HMRC by 31 July 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 May 2027.
Is Mercury Power Limited still trading?
Mercury Power 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 Mercury Power Limited do?
Mercury Power Limited is registered under Electrical installation (SIC 43210).
How old is Mercury Power Limited?
Mercury Power Limited was incorporated on 1 July 2013, 13 years ago.
Has Mercury Power Limited won public sector contracts?
Yes. Mercury Power Limited has 3 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £145K), most recently from UK SHARED BUSINESS SERVICES LIMITED.
What is the penalty if Mercury Power 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 Mercury Power 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.