- Companies
- Plumbers and heating engineers
- M & M Medical Limited
M & M Medical Limited
- Company number
- 03323693
- Incorporated
- 25 Feb 199729 years trading
- Registered office
- B4, Heol Y Twyn, Talbot Green Business Park, Talbot Green, Rhondda Cynon Taff, CF72 9FG
- Nature of business
- Plumbing, heat and air-conditioning installation
M & M Medical Limited is a 29-year-old private limited company registered in Talbot Green, company number 03323693, one of the UK's plumbing and heating companies. Its next accounts are due at Companies House on 28 February 2027, and the CT600 for the period to 31 May 2026 is due at HMRC on 31 May 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 M & M Medical 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 £415K (+24.6%) on the year before, to £2.1M.
- Net assets rose in 8 of 9 year-on-year comparisons on record.
- Current assets of £2M against £817K owed within a year: 2.5 times cover.
- 21 employees on average during the year.
- Balance sheets on record for 10 years, 2016 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 May 2025 | £2.1M | £595K | £2M | £817K | 21 |
| 31 May 2024 | £1.7M | £1.5M | £2.1M | £531K | 21 |
| 31 May 2023 | £1.7M | £1.1M | £2.1M | £561K | 20 |
| 31 May 2022 | £1.7M | £1.4M | £2.2M | £619K | 23 |
| 31 May 2021 | £1.5M | £1.4M | £2.3M | £841K | 22 |
| 31 May 2020 | £794K | £824K | £2M | £1M | 20 |
| 31 May 2019 | £506K | £206K | £1.9M | £1.1M | 22 |
| 31 May 2018 | £447K | £82K | £1.4M | £1M | 22 |
| 31 May 2017 | £375K | £22K | £1.4M | £1.1M | 22 |
| 31 May 2016 | £276K | £190 | £485K | £326K |
Public contracts won
M & M Medical Limited has 9 public sector contract awards on record; the ones with their own published value total £677K, from 2019 to 2026. Source: Contracts Finder and Find a Tender award notices. 5 of these were matched by the company's exact name because the notice gave no company number.
Awards by year
Main buyers
- Somerset NHS Foundation Trust3 awards
- Somerset NHS Foundation Trust2 awards
- NHS Wales Shared Services Partnership-Procurement Services (hosted by Velindre University NHS Trust)2 awards
- West Suffolk NHS Foundation Trust1 award
- West Suffolk NHS Foundation Trust1 award
| Buyer | Contract | Value | Awarded |
|---|---|---|---|
| Somerset NHS Foundation Trust | Replacement of five AGSS pumps | £51K | 19 Sep 2026 |
| NHS Wales Shared Services Partnership-Procurement Services (hosted by Velindre University NHS Trust) | Medical Gas Works | £82K | 11 Mar 2026 |
| Somerset NHS Foundation Trust | Replacement of Obsolete Medical Gas Alarm panels | £13K | 6 Feb 2026 |
| NHS Wales Shared Services Partnership-Procurement Services (hosted by Velindre University NHS Trust) | Replacement Vacuum Plant at Ysbyty Cwm Rhondda Hospital | £46K | 8 Jan 2026 |
| West Suffolk NHS Foundation Trust | Day Surgery Unit - Replacement Vacuum Plant | £30K | 7 Nov 2025 |
| Somerset NHS Foundation Trust | Air compressor and Medical Gas | £49K | 17 Mar 2025 |
| Somerset NHS Foundation Trust | Medical Gas Infrastructure Works (CAPRO060) | £299K | 13 Dec 2024 |
| Somerset NHS Foundation Trust | CAPRO053 Medical Gas Terminal Replacement - Maternity MPH | £31K | 2 Dec 2024 |
| West Suffolk NHS Foundation Trust | Vac Plant Elements 3,5,6 - Med Air Plant GRP | £76K | 23 Jul 2019 |
Where M & M Medical Limited is registered
The registered office is in Talbot Green (CF72), in the Rhondda Cynon Taf local authority area, Wales. Show CF72 9FG on a map.
Other trade companies in CF72
- J Langdon Developments LtdBuilders
- Fortis DS LtdMachinery repair and installation
- Barcombe Commercial & Property Services LtdFinishing trades
- JMP Gas Plumbing and Heating LtdPlumbers and heating engineers
- Mgreenroofing LtdRoofers
- Vent-Ways LtdInstallers
- O&R Autohaus LimitedMechanics and garages
- Acer Garden Retreats LtdJoiners and carpenters
Also registered at this address
1 other company uses the same registered office as M & M Medical Limited.
- M&M Medical Group LimitedPlumbers and heating engineers
What happens if M & M Medical 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 28 February 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Mar 2027 to 31 Mar 2027 | £150 |
| 1 to 3 months late | 1 Apr 2027 to 31 May 2027 | £375 |
| 3 to 6 months late | 1 Jun 2027 to 31 Aug 2027 | £750 |
| More than 6 months late | From 1 Sep 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Jun 2027 | £200 |
| 3 months late | 31 Aug 2027 | another £200 |
| 6 months late | 30 Nov 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 May 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
- 03323693
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 25 February 1997 (29 years ago)
- Registered office
- B4, Heol Y Twyn, Talbot Green Business Park, Talbot Green, Rhondda Cynon Taff, CF72 9FG
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 May (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 May 2025
- Last confirmation statement
- 25 February 2026
- Charges (mortgages)
- 0 outstanding of 5 registered
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
Other active plumbing and heating companies.
Frequently asked questions
When are M & M Medical Limited's accounts due?
M & M Medical Limited's next accounts are due at Companies House by 28 February 2027 (in 138 days), covering the period to 31 May 2026.
When is M & M Medical Limited's CT600 due?
The CT600 for the period to 31 May 2026 is due at HMRC by 31 May 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 March 2027.
Is M & M Medical Limited still trading?
M & M Medical 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 M & M Medical Limited do?
M & M Medical Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is M & M Medical Limited?
M & M Medical Limited was incorporated on 25 February 1997, 29 years ago.
Has M & M Medical Limited won public sector contracts?
Yes. M & M Medical Limited has 9 contract awards from public bodies on Contracts Finder and Find a Tender (those with their own published value total £677K), most recently from SOMERSET NHS FOUNDATION TRUST.
What is the penalty if M & M Medical 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 M & M Medical 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.