Greenwood Airvac

What Greenwood Airvac does

Greenwood Airvac is a UK-based manufacturer of mechanical ventilation systems serving the residential new-build and refurbishment markets, operating as a division of Zehnder Group UK Ltd since 2008. Founded in 1879 and headquartered in Camberley, Surrey with manufacturing in Maidstone, Kent, the company produces a broad product range including decentralised Mechanical Extract Ventilation (dMEV) fans such as the Unity CV3, Mechanical Ventilation with Heat Recovery (MVHR) units including the Vireo HR155, Mechanical Extract Ventilation (MEV) systems, intermittent extract fans, acoustic ventilators, window vents, and commercial fans. The firm is differentiated by patented HumidiSMART technology, which uses sensing logic to distinguish man-made indoor humidity from background humidity and reduce nuisance fan operation, and by being first to market with a classified dMEV product in the UK in 2007.

The business sells through a hybrid go-to-market model: a distributor and retailer network supplies small contractors, social housing providers, and individual buyers, while direct relationships serve enterprise customers such as Taylor Wimpey, Nationwide Frame Services, and New Look Windows for project-specific supply. Revenue is generated almost entirely through hardware product sales, with brand-building and specification influence supported by CPD-accredited installer training programs, case studies, brochures, and active presence on LinkedIn and Twitter. The company holds ISO 9001, 14001, and 45001 certifications and positions its products against UK Building Regulations (Approved Document F), including a GIP (Good Installation Practice) concept designed to align installation quality with regulatory compliance.

Greenwood's primary served segments are social housing providers (housing associations and local councils), new-build residential developers, and commercial buildings, with the refurbishment and retrofit market a stated growth focus. Because the company is a division of the family-owned Zehnder Group rather than a standalone listed entity, no Greenwood-specific revenue, headcount, or financial KPIs are publicly disclosed; the 1,001–5,000 employee figure available in third-party data appears to reflect Zehnder Group UK as a whole rather than the Greenwood division alone.

Name

Greenwood Airvac

Legal name

Greenwood Air Management Ltd

Website

https://greenwood.co.uk

Company type

Private

Founded year

1879

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Greenwood Airvac is a UK manufacturer of mechanical ventilation systems (dMEV, MVHR, MEV, extract fans) for residential new-build and refurbishment markets, serving social housing providers, developers, and commercial customers as a division of Zehnder Group UK Ltd.

Ownership category

akta.pro rank

Product category

Building Ventilation Systems

NAICS

Industrial and Commercial Fan and Blower and Air Purification Equipment Manufacturing (333413), Ventilation, Heating, Air-Conditioning, and Commercial Refrigeration Equipment Manufacturing (33341)

SIC

Industrial & Commercial Fans & Blowers & Air Purifing Equip (3564), Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip (3585)

akta.pro primary industry

Ventilation, Ducting & Air Distribution Equipment (IMAHAKAG)

akta.pro secondary industry

Ventilation System Installation (Exhaust Fans, ERV/HRV, Make-Up Air) (HSAOAGAI)

Keywords

• Mechanical ventilation
• Heat recovery ventilation
• Residential ventilation systems
• Air extraction fans
• Indoor air quality

Headquarters

HQ city

Camberley

HQ country

United Kingdom

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Hardware Product Sales: Greenwood generates revenue through the manufacture and sale of ventilation products including intermittent extract fans, continuous extract dMEV fans, MVHR units, MEV systems, acoustic ventilators, window vents, and ancillaries/ducting. Products are sold through a distributor and retailer network.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Greenwood Airvac manufactures and supplies mechanical ventilation systems — including decentralised mechanical extract ventilation (dMEV), mechanical ventilation with heat recovery (MVHR), and intermittent extract fans — for residential new build, refurbishment, social housing, and light commercial projects in the UK. Its range is differentiated by patented SMART control technologies (HumidiSMART, CommissionSMART, TimerSMART, and SummerSMART) that provide humidity-responsive and seasonally adaptive ventilation control. The company sells through UK distributors, trade counters, and direct accounts with developers and social housing providers.

Product overview

Greenwood Airvac is a manufacturer of SMART ventilation systems for residential new build and refurbishment markets, operating as a division of Zehnder Group UK Ltd since 2008. The product portfolio is broad and diversified, organized into distinct product categories: Intermittent Extract Fans (Elite, Samika, Select, Halo, Silent series) for classic on/off bathroom and kitchen ventilation; Continuous Extract/dMEV products (Unity CV3, CV2.1, CV2 GIP, Omnique) providing continuously running decentralised Mechanical Extract Ventilation; MEV systems (Centair CMEV.4e, CMEV.4eHT) as whole house central extract solutions; MVHR units (Zehnder ComfoAir range) for mechanical ventilation with heat recovery; Commercial ventilation (CD and SD series) for pubs, restaurants and commercial buildings; Acoustic ventilation products (AAB, DN Vent, AWV39, EAQ42W, MA3051, 2500EA/5000EA AC1) for noise reduction; and Window Vents (5000EA, 2500EA, GB, F, S, L, D, HD Vent) for passive background ventilation. The company also offers comprehensive ducting and ancillary solutions (ComfoTube, Flat 51, ComfoPipe, GD Ducting, Flexiduct, Valves, Filters) and proprietary SMART Technology sub-brands (HumidiSMART, TimerSMART, CommissionSMART, SummerSMART, WinterSMART, CarbonSMART) embedded across multiple product lines.

Differentiator

Problem solved

Functional benefit

Brands

• SMART Technology: Patented technology including HumidiSMART (humidity controlled ventilation), TimerSMART (automatic timer operation), CommissionSMART (easy commissioning), SummerSMART (summer bypass), WinterSMART (winter comfort), and CarbonSMART (energy efficiency).
• Unity CV3
• Unity CV2.1
• Unity CV2 GIP
• Omnique
• Centair CMEV
• Vireo MVHR

Products and services

• Decentralised Mechanical Extract Ventilation (dMEV) Systems Continuous, low-traction mechanical extract fans that provide whole-house ventilation through individual room units, designed for UK residential new-build and refurbishment applications requiring Building Regulations Part F compliance. Targeted at housebuilders, social housing providers, and refurbishment contractors.
• SMART Ventilation Range (HumidiSMART) A range of extract fans equipped with patented HumidiSMART humidity-sensing technology that automatically adjusts airflow based on detected indoor humidity. Aimed at residential housebuilders, social housing providers, and contractors seeking demand-controlled, energy-efficient ventilation.
• CommissionSMART Ventilation Units Ventilation units featuring patented CommissionSMART commissioning technology designed to streamline installer set-up, reduce commissioning errors, and simplify Building Regulations sign-off. Targeted at mechanical and electrical contractors, housebuilders, and social housing providers.
• TimerSMART Ventilation Units Ventilation products equipped with TimerSMART programmable timer control, providing scheduled boost, overrun, and run-on operation. Designed for residential and light commercial applications where timed ventilation cycles are required.
• SummerSMART Ventilation Units Ventilation products with SummerSMART seasonal bypass functionality, designed to bypass heat recovery during warmer periods to avoid unwanted heat input. Targeted at residential MVHR installations where summer comfort is a priority.
• Intermittent Extract Fans A range of intermittent mechanical extract fans for kitchens, bathrooms, and utility rooms in residential and light commercial settings. Sold primarily through UK electrical wholesalers and trade counters for refurbishment and small-project use.

Quantifiable outcome

• Less than a penny a day to run continuous ventilation for entire year
• +4 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature12 records

Partnerships

One partnership is on record.

• Zehnder Group UK LtdflagshipStrategic or Co-development Partner · 1 January 2008Greenwood Airvac is a division of Zehnder Group UK Ltd. Zehnder Group, specialists in indoor climate solutions across radiators, radiant heating and cooling and ventilation acquired Greenwood with the explicit objective to focus on market niches, to utilise their local (UK) experience in delivering innovative solutions within the residential sector. Zehnder is a successful international group with strong family ties, committed to energy-efficient solutions for a healthy and comfortable indoor climate.

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• EnviroVent: UK manufacturer and installer of residential ventilation including dMEV, MVHR, PIV systems and mould remediation products. Overlaps with Greenwood in social housing damp and condensation retrofit programmes.
• Nuaire: Welsh manufacturer of residential and commercial ventilation including dMEV, MEV and MVHR systems. Competes head-to-head with Greenwood on continuous extract and MVHR for UK new build and social housing specifications.
• Vent-Axia: UK-based leading manufacturer of ventilation systems including MVHR, MEV, dMEV, extract fans and acoustic ventilators. Direct competitor to Greenwood across intermittent, continuous and whole-house residential ventilation, with overlapping social housing and developer customer bases.
• Driven Air (Titon): Titon is a UK manufacturer of ventilation products including MVHR, MEV and intermittent fans. Competes with Greenwood across UK residential new-build and refurbishment projects.
• Polypipe Ventilation: UK provider of domestic ventilation systems and ducting, including dMEV, MVHR and rigid/semi-rigid ducting. Directly competes with Greenwood's ComfoTube ducting ecosystem and continuous extract fans for residential developments.

Broad incumbents

• Zehnder Group (parent brand portfolio): Parent company of Greenwood and a major European indoor climate group spanning radiators, radiant heating/cooling and MVHR. Zehnder's ComfoAir range now serves as the MVHR product line associated with Greenwood, making it both parent and the closest comparable broader incumbent.
• Vallox (Swegon): Northern European indoor climate group (Swegon) with the Vallox residential MVHR brand. Competes in high-efficiency heat recovery ventilation, with the Vallox range positioned similarly to Zehnder ComfoAir sold alongside Greenwood.

Emerging players

• Brookvent: UK manufacturer of dMEV, MEV and MVHR systems targeting residential new build and retrofit. Smaller scale than Greenwood but overlapping in product range and channel (distributors, developers, social housing).
• Blauberg Ventilatoren: European manufacturer of energy-efficient ventilation equipment including single-room heat recovery units and dMEV fans. Competes with Greenwood in the UK retrofit and new-build residential market with comparable product categories.

Regional players

• Airtech (Passivent): UK supplier of acoustic ventilators, window vents and passive background ventilation under the Passivent brand. Comparable to Greenwood's acoustic ventilation and window vent lines for noise-attenuation and Part F background ventilation specification.

Market position

Strengths5 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/GreenwoodAirvac
• LinkedInlinkedin.com/company/greenwood-air-management

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Greenwood Airvac