- Companies
- Plumbers and heating engineers
- Adderbury
- SMH Gas Specialist Ltd
SMH Gas Specialist Ltd
- Company number
- 08721459
- Incorporated
- 7 Oct 201313 years trading
- Registered office
- 2 Somerville Court, Banbury Business Park, Adderbury, Oxfordshire, OX17 3SN
- Nature of business
- Plumbing, heat and air-conditioning installation
SMH Gas Specialist Ltd is a 13-year-old private limited company registered in Adderbury, company number 08721459, one of 6 plumbing and heating companies in Adderbury. Its next accounts are due at Companies House on 31 December 2026, and the CT600 for the period to 31 March 2026 is due at HMRC on 31 March 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 down £129K (-85.1%) on the year before, to £23K.
- Net assets rose in 7 of 9 year-on-year comparisons on record.
- Current assets of £44K against £34K owed within a year: 1.3 times cover.
- 3 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 Mar 2025 | £23K | £32K | £44K | £34K | 3 |
| 31 Mar 2024 | £151K | £32K | £161K | £26K | 3 |
| 31 Mar 2023 | £146K | £68K | £174K | £31K | 3 |
| 31 Mar 2022 | £140K | £69K | £164K | £28K | 3 |
| 31 Mar 2021 | £127K | £68K | £151K | £28K | 4 |
| 31 Mar 2020 | £107K | £73K | £125K | £23K | 4 |
| 31 Mar 2019 | £106K | £85K | £137K | £37K | 4 |
| 31 Mar 2018 | £59K | £41K | £87K | £36K | 3 |
| 31 Mar 2017 | £67K | £62K | £93K | £36K | 4 |
| 31 Mar 2016 | £47K | £80K | £83K | £52K |
Where SMH Gas Specialist Ltd is registered
The registered office is in Adderbury (OX17), in the Cherwell local authority area, South East. Show OX17 3SN on a map.
Other trade companies in OX17
- CHM Facilities Services LtdFacilities management
- The Motor House Oxfordshire LimitedMotor traders
- Urban & Country Renewables LimitedInstallers
- Wright & Co Realty Projects LimitedBuilders
- MGR Banbury LimitedBuilders
- Ninety-Two Industries LtdMechanics and garages
- Motorline Cars LimitedMotor traders
- Penniston Developments LimitedFinishing trades
Also registered at this address
23 other companies use the same registered office as SMH Gas Specialist Ltd.
- A Simpson Plumbing & Heating LimitedPlumbers and heating engineers
- Auto Action Developments LtdMechanics and garages
- C&S Perimeter Maintenance LimitedSpecialist contractors
- Clark Dene Contracts LimitedFloor and wall tilers
- Clark Dene Flooring LimitedFloor and wall tilers
- D & H Auto Services LimitedMechanics and garages
- Damian Brant Designs LimitedSpecialist contractors
- DNC Projects LtdProperty developers
- Flooring First Contracts LimitedFloor and wall tilers
- Go to Ev LimitedElectricians
- Impact Electrical Contractors LimitedElectricians
- Joe Tompkins LimitedMotor traders
- L J Plumbing & Heating Services LimitedPlumbers and heating engineers
- Lovegrove Painting & Decorating LimitedPainters and decorators
- N J Powell Carpentry & Construction LtdBuilders
- Oxfordshire Construction Developments LimitedProperty developers
- Pinnock Autos LimitedMechanics and garages
- Reel Creations LimitedMechanics and garages
- The Motor House Oxfordshire LimitedMotor traders
- The Seat Belt Repair Store LimitedMachinery repair and installation
- Urban & Country Renewables LimitedInstallers
- Webber Construction LimitedFinishing trades
- Wise Solutions Heating & Plumbing LtdPlumbers and heating engineers
What happens if SMH Gas Specialist 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 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jan 2027 to 31 Jan 2027 | £150 |
| 1 to 3 months late | 1 Feb 2027 to 31 Mar 2027 | £375 |
| 3 to 6 months late | 1 Apr 2027 to 30 Jun 2027 | £750 |
| More than 6 months late | From 1 Jul 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Apr 2027 | £200 |
| 3 months late | 30 Jun 2027 | another £200 |
| 6 months late | 30 Sep 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Mar 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
- 08721459
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 7 October 2013 (13 years ago)
- Registered office
- 2 Somerville Court, Banbury Business Park, Adderbury, Oxfordshire, OX17 3SN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 March (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 March 2025
- Last confirmation statement
- 14 May 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 Adderbury
Other active plumbing and heating companies registered in Adderbury.
- Wise Solutions Heating & Plumbing Ltd2020
- A Simpson Plumbing & Heating Limited2026
- Gardiner & Collins Plumbing and Heating Limited2025
- L J Plumbing & Heating Services Limited2021
- Phillips Heating & Plumbing Limited2022
All plumbing and heating companies in Adderbury · All trades in Adderbury · Plumbers and heating engineers across the UK
Frequently asked questions
When are SMH Gas Specialist Ltd's accounts due?
SMH Gas Specialist Ltd's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is SMH Gas Specialist Ltd's CT600 due?
The CT600 for the period to 31 March 2026 is due at HMRC by 31 March 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 January 2027.
Is SMH Gas Specialist Ltd still trading?
SMH Gas Specialist 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 SMH Gas Specialist Ltd do?
SMH Gas Specialist Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SMH Gas Specialist Ltd?
SMH Gas Specialist Ltd was incorporated on 7 October 2013, 13 years ago.
What is the penalty if SMH Gas Specialist 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 SMH Gas Specialist 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.