- Companies
- Plumbers and heating engineers
- Saltash
- Wave Mechanical Limited
Wave Mechanical Limited
- Company number
- 12940295
- Incorporated
- 9 Oct 20206 years trading
- Registered office
- C/O Complete HQ 2 Bridge Court Kingsmill Road, Tamar View Industrial Estate, Saltash, Cornwall, PL12 6LS
- Nature of business
- Plumbing, heat and air-conditioning installation
Wave Mechanical Limited is a 6-year-old private limited company registered in Saltash, company number 12940295, one of 15 plumbing and heating companies in Saltash. 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.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Wave Mechanical LimitedOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
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 £44K (+96.2%) on the year before, to £89K.
- Net assets rose in 3 of 4 year-on-year comparisons on record.
- Current assets of £118K against £6,788 owed within a year: more than 10 times cover.
- No employees reported for the latest year (directors are often not counted as employees).
- Balance sheets on record for 5 years, 2021 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Dec 2025 | £89K | £118K | £6,788 | 0 | |
| 31 Dec 2024 | £46K | £65K | £7,789 | 0 | |
| 31 Dec 2023 | £46K | £65K | £7,150 | 0 | |
| 31 Dec 2022 | £32K | £41K | £400 | 0 | |
| 31 Dec 2021 | £16K | £3,800 | 0 |
Where Wave Mechanical Limited is registered
The registered office is in Saltash (PL12), in the Cornwall local authority area, South West. Show PL12 6LS on a map.
Other trade companies in PL12
- M&T Premier Motors LtdMotor traders
- BM Competitions LtdMechanics and garages
- Ib Finishing LtdPlasterers
- Welch Exterior Cleaning LtdCleaning companies
- Ajp Building and Landscaping LtdProperty developers
- L Whitford Bricklaying LtdSpecialist contractors
- WR Cooling and Heating LtdPlumbers and heating engineers
- M.S Taylor Contracting LtdLandscapers and gardeners
Also registered at this address
1 other company uses the same registered office as Wave Mechanical Limited.
- Coastal Wraps LtdFinishing trades
What happens if Wave Mechanical 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
- 12940295
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 9 October 2020 (6 years ago)
- Registered office
- C/O Complete HQ 2 Bridge Court Kingsmill Road, Tamar View Industrial Estate, Saltash, Cornwall, PL12 6LS
- 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
- 9 September 2026
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 Saltash
Other active plumbing and heating companies registered in Saltash.
- WR Cooling and Heating Ltd2026
- WR Plumbing and Heating Ltd2015
- Yeo & Co Plumbing and Heating Ltd2020
- Allgas South West Ltd2009
- Butler Heating & Plumbing Limited2023
- Chamings Limited2014
- GDW Plumbing and Heating Limited2023
- James Harvey Plumbing Ltd2022
All plumbing and heating companies in Saltash · All trades in Saltash · Plumbers and heating engineers across the UK
Frequently asked questions
When are Wave Mechanical Limited's accounts due?
Wave Mechanical Limited's next accounts are due at Companies House by 30 September 2027 (in 352 days), covering the period to 31 December 2026.
When is Wave Mechanical 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 Wave Mechanical Limited still trading?
Wave Mechanical 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 Wave Mechanical Limited do?
Wave Mechanical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Wave Mechanical Limited?
Wave Mechanical Limited was incorporated on 9 October 2020, 6 years ago.
What is the penalty if Wave Mechanical 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 Wave Mechanical 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.