- Companies
- Plumbers and heating engineers
- Weymouth
- SD Plumbing & Gas Ltd
SD Plumbing & Gas Ltd
- Company number
- 12406158
- Incorporated
- 15 Jan 20206 years trading
- Registered office
- G8 Lynch Lane Offices, 79 Lynch Lane, Weymouth, Dorset, DT4 9DN
- Nature of business
- Plumbing, heat and air-conditioning installation
SD Plumbing & Gas Ltd is a 6-year-old private limited company registered in Weymouth, company number 12406158, one of 41 plumbing and heating companies in Weymouth. Its next accounts are due at Companies House on 31 October 2026, and the CT600 for the period to 31 January 2026 is due at HMRC on 31 January 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 SD Plumbing & Gas LtdOr 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 £5,922 (+940%) on the year before, to £6,552.
- Net assets rose in 2 of 4 year-on-year comparisons on record.
- Current assets of £36K against £39K owed within a year: 0.9 times cover.
- 2 employees on average during the year.
- 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 Jan 2025 | £6,552 | £3,683 | £36K | £39K | 2 |
| 31 Jan 2024 | £630 | £62 | £17K | £25K | 2 |
| 31 Jan 2023 | £2,142 | £5,926 | £16K | £21K | 1 |
| 31 Jan 2022 | £15K | £441 | £21K | £13K | 1 |
| 31 Jan 2021 | £15K | £21K | £30K | £24K | 1 |
Who runs and owns SD Plumbing & Gas Ltd
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (2)
| Name | Role | Appointed |
|---|---|---|
| J*** B*** | Director | Jan 2020 |
| S*** D*** | Director | Jan 2020 |
People with significant control (2)
Where SD Plumbing & Gas Ltd is registered
The registered office is in Weymouth (DT4), in the Dorset local authority area, South West. Show DT4 9DN on a map.
Other trade companies in DT4
- Pioneer Projects LimitedProperty developers
- TQ Drylining Solutions LtdPlasterers
- JR Property Care LtdCleaning companies
- DT Windows & Doors LtdGlaziers
- Bauen Build LimitedProperty developers
- Dorset Linen Services LimitedCleaning companies
- Regal Building Services (Dorset) LtdSpecialist contractors
- Ello Services LtdBuilders
Also registered at this address
19 other companies use the same registered office as SD Plumbing & Gas Ltd.
- Beach and Bay Building LtdPlasterers
- Broadreach (Southern) LtdBuilders
- Darwin Holdings LimitedBuilders
- Dave Rogers Building LtdJoiners and carpenters
- Dorset Craft Construction LimitedCivil engineering
- DT Windows & Doors LtdGlaziers
- Escape Garden Design & Build Dorset LtdLandscapers and gardeners
- Highdean LimitedBuilders
- Macc Bricklaying and Construction LtdBuilders
- Mark Hardy Stonemasons LimitedSpecialist contractors
- MCF Refurbishments LtdProperty developers
- Midland Craft Builders LtdInstallers
- Oxford Maintenance Services LtdInstallers
- Ross Sutherland LimitedPlumbers and heating engineers
- S.L. Williams (Plumbing Services) LtdPlumbers and heating engineers
- SF Electrical and Alarm Systems LimitedElectricians
- The Carpet Company (SW) LtdFloor and wall tilers
- W. Ash Plumbing,Heating & Gas LtdPlumbers and heating engineers
- Weymouth Construction LimitedFinishing trades
What happens if SD Plumbing & Gas 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 October 2026.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Nov 2026 to 30 Nov 2026 | £150 |
| 1 to 3 months late | 1 Dec 2026 to 31 Jan 2027 | £375 |
| 3 to 6 months late | 1 Feb 2027 to 30 Apr 2027 | £750 |
| More than 6 months late | From 1 May 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Feb 2027 | £200 |
| 3 months late | 30 Apr 2027 | another £200 |
| 6 months late | 31 Jul 2027 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Jan 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
- 12406158
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 15 January 2020 (6 years ago)
- Registered office
- G8 Lynch Lane Offices, 79 Lynch Lane, Weymouth, Dorset, DT4 9DN
- Nature of business
- Plumbing, heat and air-conditioning installation (SIC 43220)
- Year end
- 31 January (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 January 2025
- Last confirmation statement
- 15 January 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 Weymouth
Other active plumbing and heating companies registered in Weymouth.
- Siney Cdha Ltd2012
- South Dorset Plumbing & Heating Ltd2023
- Stone Hooper Ltd2020
- TT Plumbing and Heating Weymouth Limited2022
- W. Ash Plumbing,Heating & Gas Ltd2019
- Wessex Plumbing & Heating Services Limited1997
- Weymouth Gas Limited2013
- Abc Plumbing & Heating Limited2007
All plumbing and heating companies in Weymouth · All trades in Weymouth · Plumbers and heating engineers across the UK
Frequently asked questions
When are SD Plumbing & Gas Ltd's accounts due?
SD Plumbing & Gas Ltd's next accounts are due at Companies House by 31 October 2026 (in 18 days), covering the period to 31 January 2026.
When is SD Plumbing & Gas Ltd's CT600 due?
The CT600 for the period to 31 January 2026 is due at HMRC by 31 January 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 November 2026.
Is SD Plumbing & Gas Ltd still trading?
SD Plumbing & Gas 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 SD Plumbing & Gas Ltd do?
SD Plumbing & Gas Ltd is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is SD Plumbing & Gas Ltd?
SD Plumbing & Gas Ltd was incorporated on 15 January 2020, 6 years ago.
Who runs SD Plumbing & Gas Ltd?
SD Plumbing & Gas Ltd has 2 active directors, the longest-serving appointed in Jan 2020. Their names and service addresses are on the Companies House register.
Who owns SD Plumbing & Gas Ltd?
2 people or companies have significant control of SD Plumbing & Gas Ltd: an individual (owns 25% to 50% of the shares); an individual (owns 25% to 50% of the shares).
What is the penalty if SD Plumbing & Gas 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 SD Plumbing & Gas 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.