Volution - investing for climate action
- Graeme Kyle
- Nov 7
- 6 min read

Why climate-focussed equity investors might want to take a look at Volution.
Synopsis
Track record in climate action. Volution has a strong track record in climate action. It boasts impressive green credentials, including the London Stock Exchange Green Economy Mark, the FT Europe Climate Leaders award, and full SBTi approval for its near- and long-term emission reduction targets.
Products lead to lower emissions. The group develops and manufactures a wide-ranging and growing portfolio of indoor air management products, making airtight buildings a practical proposition and cutting the amount of energy needed to heat such buildings. Lower energy use means lower GHG emissions from the built environment.
Attractive investment proposition. Climate investors seeking to diversify from renewable energy might want to consider Volution. The shares offer financial quality, consistent growth, and reasonable valuation. The current price of 635p gives a forward PER of 18.1x and a PEG ratio of 1.5x
Investment analysis
Volution plc is a FTSE 250 company that manufactures a range of branded and OEM ventilation products to improve indoor airflow and air quality. It operates in the UK, Europe, and Australasia, supplying residential and, to a lesser extent, commercial markets.
Over the last 3 years, the group has established its green credentials, and its emission targets were submitted to and approved by SBTi in 2025. Management states that it is among just 14% of FTSE 250 companies with full SBTi accreditation for its near and long-term emission reduction targets.
Volution enjoys high underlying operating margins (FY25A: 22.3%) and ROIC consistently above its cost of capital (FY25A underlying ROIC 25.2%). It operates with moderate financial leverage (FY25A net debt/equity ratio = 72%), and management boasts a long track record of investing shareholder capital in organic growth projects and value-accretive acquisitions.
Volution shares offer the investor the 'holy trinity' of quality, growth, and reasonable value. The current share price of 635p implies a forward PER of 18.1x (using consensus earnings for FY26) and this translates into a PEG ratio of 1.5x based on the long-term EPS growth rate of 12.2%.
Green credentials may be under-rated by investors
Volution has held the LSE Green Economy Mark since 2021, which is only available to companies with over 50% of revenues from green products (further details on the Green Economy Mark can be found here). According to the LSE, 71% of Volution’s revenues are derived from green products and services. Indeed, we expect this percentage to rise further over the next five years as Volution widens its suite of low-carbon products, through both organic growth and M&A initiatives. Of Volution’s FTSE 250 building materials peers, only Genuit has also been awarded the Green Economy Mark.
Volution’s climate-related disclosures are comprehensive. It complies with the latest FCA TCFD recommendations, and in 2025 its science-based targets were confirmed by SBTi as meeting its Net-Zero Standard and Near-Term Target criterium (click here for full details).
Emissions audit and SBTi approved targets
Figure 1

*Scope 1 and 2 carbon intensity (tCO2e/£m of revenue; location based)
Company data: 2034 and 2050 targets approved by SBTi in 2025
Figure 2

Figures 1 and 2 show that Volution’s Scope 1 + Scope 2 carbon intensity has fallen by 38% in the last 5 years (broadly in line with the FTSE 250 building materials sector average of 43%) and by 65% in the period 2015-2025. Management’s SBTi-approved targets indicate that carbon intensity is expected to decrease by 15% from 2025 to 2034 and by 61% from 2025 to 2050.
Regarding Scope 3, we think that external factors, primarily the decarbonisation of national electricity grids, are key to emission reduction. Management states that 83% of Scope 3 emissions are due to the power consumed by Volution products (extractor fans and other electrically driven products) over their useful life. The rising penetration of renewable electricity in Volution’s end markets will, therefore, enable Scope 3 reductions in itself. Indeed, rapidly rising penetration rates could help Volution achieve net zero earlier than planned. Volution primarily operates in markets with progressive climate legislation, which provides support for the growth of renewable energy.
We also point to Volution’s recent acquisitions, whose products enable Scope 3 reductions in the built environment. For example, the heat exchanger cells business ERI (acquired in September 2021) supplies its products to heat recovery ventilation markets. Similarly, i-Vent (acquired in 2023) designs and manufactures decentralised heat recovery products.
Pathway to Net Zero
Figure 3

Volution’s “Pathway to Net Zero” (Figure 3) supports its SBTi-approved emission reductions. Targets along the route include: i) 75% of revenue from sales of low-carbon and heat recovery products by 2026 (2025: 71.2%); ii) 100% electrification of transport fleet by 2030; and iii) the removal of natural gas as an energy source at all UK sites by 2040.
The most effective way to reduce GHG emissions from a building is to improve insulation, as it retains heat and reduces energy consumption. An unintended consequence, however, is the development of ‘airtight buildings’, which can lead to stagnant indoor air that is prone to harbouring harmful viruses and volatile organic compounds (VOCs). Volution’s products are designed to alleviate such issues through the passive and active management of airflow in a building, with an increasing number of products controlled by intelligent technology. Legislation is supportive. The UK Building Regulations (2021), Section F, and Awaab’s Law (2025), as well as the Healthy Homes Act (2017) in New Zealand, highlight society’s demands and the political will for effective air management in residential buildings. We expect Volution to capitalise on what we think could be a multi-decade demand trend.
Increasing the use of recycled plastics is one of Volution's key Sustainability KPIs. Measured as a percentage of all plastics used in products, this reached an all-time high of 84% in 2025 (2024: 78%) and is expected to rise to 90% by 2026. As a comparison, FTSE 250 peer Genuit, which also targets this measure, is currently at 52%.
Management has defined “active reductions” in GHG emissions and distinguished them from passive or externally driven reductions. We like this approach - it ensures management actions are measured independently from external developments (both positive and negative) that are typically beyond its control. A good example on the positive side is the rising penetration of green energy tariffs.
Volution’s green capex programmes over the last three years have included investing in energy-efficient tooling (UK) and in plastics recycling machinery (Europe).
Disclaimers
Calvine Partners LLP (“Calvine Partners”) is authorised and regulated by the Financial Conduct Authority, in respect of UK investment advisory or arranging activities.
Calvine Partners is able to carry on certain regulated activities in relation to professional clients and this report in the United Kingdom is directed at investment professionals only as defined by Financial Services and Markets Act 2000 (Financial Promotion) Order 2000. The report may also be distributed and made available to persons to whom Calvine Partners is lawfully permitted. This publication is not intended for use by any individual or entity in any jurisdiction or country where that use would breach law or regulations, or which would subject Calvine Partners or its affiliates to any registration requirement within such jurisdiction or country.
Calvine Partners may provide, or seek to provide, services to other companies mentioned in this report. Partners, employees, or related parties thereof may hold positions in the companies mentioned in the report subject to Calvine Partners’ personal account dealing rules.
Calvine Partners has only used publicly available information believed to be reliable at the time of this publication and made its best efforts to ensure that the facts and opinions stated are fair, accurate, timely and complete. However, Calvine Partners provides no guarantee concerning the accuracy or completeness of the report or the information or opinions within. This publication is not intended to be an investment recommendation, personal or otherwise, and it is not intended to be advice and should not be treated in any way as such. Any valuation estimate, such as those derived from a discounted cash flow, price multiple, or peer group comparison, do not represent an estimate or forecast of a future company share price. In no circumstances should the report be relied on or acted upon by non-qualified individuals. Personal or otherwise, it is not intended to be advice and should not be relied on in any way as such.
This Document shall not be treated as tax, regulatory, accounting, legal, investment or any other advice in relation to the recipient of this information, and this information should not and cannot be relied upon as such.
Forward-looking statements, information, estimates, and assumptions contained in this report are not yet known, and uncertainties may cause the actual results, performance or achievements to be significantly different from expectations.
This report does not constitute an offer, invitation or inducement to engage in a purchase or sale of any securities in the companies mentioned. The information provided is for educational purposes only. This publication should not be relied upon when making any investment decision or entering any commercial contract. Readers should seek appropriate, independent advice before acting on any of the information contained herein. This report should not be considered as investment advice, and Calvine Partners will not be liable for any losses, costs or damages arising from the use of this report. The information provided in this report should not be considered in any circumstances as personalised advice.
Calvine Partners LLP, its affiliates, officers or employees do not accept any liability or responsibility with regard to the information in this publication. None of the information or opinions in this publication has been independently verified. Information and opinions are subject to change after the publication of this report, possibly rendering them inaccurate and/or incomplete.