- Companies
- Plumbers and heating engineers
- Exeter
- N.A. Guppy Limited
N.A. Guppy Limited
- Company number
- 00842249
- Incorporated
- 23 Mar 196561 years trading
- Registered office
- Croylands, Brampford Speke, Exeter, Devon, EX5 5HH
- Nature of business
- Plumbing, heat and air-conditioning installation
N.A. Guppy Limited is a 61-year-old private limited company registered in Exeter, company number 00842249, one of 98 plumbing and heating companies in Exeter. 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 £42K (-41.3%) on the year before, to £60K.
- Net assets rose in 2 of 6 year-on-year comparisons on record.
- 10 employees on average during the year.
- Balance sheets on record for 8 years, 2017 to 2025.
Net assets by year
| Year end | Net assets | Cash | Current assets | Owed within a year | Employees |
|---|---|---|---|---|---|
| 31 Mar 2025 | £60K | £223K | £663K | 10 | |
| 31 Mar 2024 | £103K | £243K | £691K | 10 | |
| 31 Mar 2023 | £125K | £288K | £587K | 10 | |
| 31 Mar 2022 | £334K | £362K | £352K | 9 | |
| 31 Mar 2021 | £216K | £280K | £555K | 9 | |
| 31 Mar 2019 | £239K | £785K | £2.9M | £821K | |
| 31 Mar 2018 | £2M | £477K | £3.6M | £1.6M | 8 |
| 31 Mar 2017 | £1.9M | £666K | £2.8M | £994K | 8 |
Who runs and owns N.A. Guppy Limited
From the Companies House register. Individuals are shown by initials only; the full register is on Companies House.
Officers (3)
| Name | Role | Appointed |
|---|---|---|
| E*** G*** | Director | before Mar 1991 |
| S*** G*** | Director | before Mar 1991 |
| E*** G*** | Secretary | before Mar 1991 |
2 former officers
| Name | Role | Appointed | Left |
|---|---|---|---|
| N*** G*** | Director | Feb 2023 | |
| N*** G*** | Director | Sep 2025 |
Person with significant control
Where N.A. Guppy Limited is registered
The registered office is in Exeter (EX5), in the East Devon local authority area, South West. Show EX5 5HH on a map.
Other trade companies in EX5
- Onyx Business Parks Skypark Offices LtdBuilders
- Southwest Church Works LtdSpecialist contractors
- Exe Electrical LtdElectricians
- Westcott Property Group LtdProperty developers
- Maintainright LtdElectricians
- D.R Groundworks and Landscaping LtdSpecialist contractors
- Ad Car Services LimitedMotor traders
- Springfield Terrain LimitedMachinery repair and installation
Also registered at this address
1 other company uses the same registered office as N.A. Guppy Limited.
- Court Place Development LimitedBuilders
What happens if N.A. Guppy 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 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
- 00842249
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 23 March 1965 (61 years ago)
- Registered office
- Croylands, Brampford Speke, Exeter, Devon, EX5 5HH
- 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
- 31 March 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 Exeter
Other active plumbing and heating companies registered in Exeter.
- Nute Plumbing Services Limited2002
- P & J Chown Plumbing & Heating Limited2021
- Park Leisure Solutions Ltd2017
- Paul Carpenter (Ipf) Limited2010
- Paul Kane Ltd2008
- Pilot Heating & Plumbing Ltd2023
- Project Exe Services Ltd2012
- Pureheatsw Ltd2024
All plumbing and heating companies in Exeter · All trades in Exeter · Plumbers and heating engineers across the UK
Frequently asked questions
When are N.A. Guppy Limited's accounts due?
N.A. Guppy Limited's next accounts are due at Companies House by 31 December 2026 (in 79 days), covering the period to 31 March 2026.
When is N.A. Guppy Limited'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 N.A. Guppy Limited still trading?
N.A. Guppy 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 N.A. Guppy Limited do?
N.A. Guppy Limited is registered under Plumbing, heat and air-conditioning installation (SIC 43220).
How old is N.A. Guppy Limited?
N.A. Guppy Limited was incorporated on 23 March 1965, 61 years ago.
Who runs N.A. Guppy Limited?
N.A. Guppy Limited has 2 active directors. Their names and service addresses are on the Companies House register.
Who owns N.A. Guppy Limited?
One person or company has significant control of N.A. Guppy Limited: N.A. Guppy Group Holdings Limited (owns 75% or more of the shares).
What is the penalty if N.A. Guppy 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 N.A. Guppy 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.