Ventilation Solutions (Continuous Extract and Heat Recovery)

Our service

What do we mean by ‘Ventilation Solutions’?

Although this may be a generic term, our service is anything but generic covering continuous mechanical ventilation (CMEV/DMEV) and mechanical ventilation with heat recovery (MVHR).

Elmhurst enegry approved ventilation scheme member logo

Our Ventilation Solutions are tailored to you and your project’s specific needs to create bespoke designs, which result in efficient and compliant installs. This delivers an optimal ventilation solution for your project.

We listen to you, follow ventilation best practices, collaborate with industry experts and leading manufacturers to guide you each step of the way from design to handover.

Who benefits from our Ventilation Solutions

  • Occupants
  • Self-Builders
  • Architects
  • Designers
  • M&E Consultants
  • Contractors
  • Passive House Projects
  • AECB Projects
  • A-Rated Energy Projects
  • Enerphit Projects
  • Retrofit Projects

Our approach

We recognise that each project is unique and aim to keep things simple for our clients, overseeing the delivery of the ventilation system from design to handover.

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Contact us about your project


Within buildings a professionally designed, installed, commissioned and maintained ventilation system is imperative to building and occupant health.

To attempt to demonstrate this importance, if we think of a building as a human body, its ventilation system is like the respiratory system. In the absence of functioning lungs, we would not be very healthy and we certainly wouldn’t feel well. Buildings need ventilation systems to supply fresh air and remove unwanted pollutants, just like the human body requires oxygen to be supplied and carbon dioxide to be removed to be at our best.

When we build energy efficient projects we want them to last and be fit for purpose well into the future. You can think of this as a marathon or an iron man for the building. To complete one of these events and overcome all the trials and tribulations along the way we need to be in prime condition and your building is no different with its requirements for its ventilation system.

Let’s have a conversation in order to fully understand your project and provide advice on applicable ventilation options.

Defining the scope of your ventilation requirements


Following our initial engagement, we will have a better understanding of your project and what option you require, for example either a CMEV, DMEV or MVHR. As every project is bespoke, Ecotest then tailors our services to best suit you.

We may provide all, or a selection of the following:

  • Design
  • Specification
  • Supply of the Ventilation System
  • Installation/ Guided Installation
  • Commissioning and Handover
  • End-to-end Project Management
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A laptop displaying an ecotest limited quotation on screen with a notepad, pen and phone

We’ll prepare a clearly defined quotation


Our quote will clearly define our service offering, requirements on site and terms and conditions. We will provide the quote to you in writing for your approval.

Delivering your ventilation solution


With your agreement, we will commence the delivery of your ventilation solution. Here’s a brief overview on what to expect and is of course dependent upon the agreed scope of work.

Mechanical ventilation with heat recovery (mvhr) semi-rigid radial ducting installation in a floor to ceiling cavity


Our ventilation design specialists will provide advice, guidance and CAD designs that are bespoke to your project and demonstrate compliance to the Building Regulations and certifying body.


We will provide a full Bill of Materials for the ventilation system to enable procurement of the required equipment, components and any ancillaries.

Supply of the Ventilation System

We can supply you with the correct equipment, components and ancillaries to satisfy the intended design. We are a Zehnder Service Partner and therefore would recommend their equipment covering the Zehnder and Greenwood Airvac ranges above other manufacturers.

Guided Installation / Installation

We can either guide you or your onsite contractors to install the ventilation system, offering significant cost savings to the project. However, if you do not feel that is appropriate, our installation partners can install the ventilation system for you. Both options will be certified by us against the design, manufacturer’s requirements and the applicable Building Regulations and certifying bodies.

Commissioning and Handover

We will attend site to commission the unit and provide you with an in-depth handover, to ensure you understand how the system has been commissioned and how to operate/maintain it effectively. We will also provide you with our ventilation report. This document will include all the relevant information from the commissioning process. It will allow you to demonstrate compliance to your Build Control Body against the design and the Building Regulations. The ventilation manufacturer may also require this to activate any applicable warranties.

End-to-end Project Management

We take care of the end-to-end process and work with other parties such as architects, contractors, trades and building control bodies to manage the provision of your ventilation solution for you.

What are the benefits of using our ventilation solutions services?

1. Our expertise

When you instruct Ecotest for your ventilation system, you can have complete confidence in our expertise and experience in both Continuous Mechanical Extract (MEV) and Mechanical Ventilation with Heat Recovery (MVHR) systems. We are dedicated to delivering customised solutions to satisfy your building’s unique requirements.

2. Our Trusted partner network

Where applicable we collaborate with our trusted partner network to ensure seamless integration with other aspects of the design and stakeholders in your building.

3. Risk Mitigation

Working with us minimises potential risks associated with ventilation systems that can arise from poor design, inappropriate equipment sizing, delivery disruptions, incorrect installations, poor commissioning and an inadequate handovers. We safeguard against costly delays, expensive remedials and any potential adverse effects on building and occupant health.

4. Project Management

Ecotest will streamline the journey from design to handover, ensuring effective communication with stakeholders, aligning project objectives, and providing integration with the build schedule. Our goal is to take the hassle out of this aspect of your project and help you deliver a successful outcome.

5. Our Recommended Ventilation Manufacturers

Our recommended manufacturers have a comprehensive range of ventilation systems, which we can utilise to meet your requirements. If required we are able to supply ventilation systems that are certified to Passive House Standards.

Get in touch to learn more

We will support you to find the best ventilation and air tightness strategies for your project.

Frequently asked questions

What is background ventilation?2023-03-02T09:50:58+00:00

A small ventilation opening designed to provide controllable whole building ventilation (e.g. window slot vents a.k.a trickle vents).

Do I need background ventilation?2023-03-02T10:12:52+00:00

That depends on your ventilation system:

Q: Intermittent extract fans

A: Yes you do, please refer to Part F of the Building Regulations or contact us for more support.


Q: Continuous mechanical extract ventilation

A:  Generally yes, but it depends on the air permeability of your building, contact us for more support.



A: No you do not require background ventilation methods, such as window slot vents.

What is continuous mechanical extract ventilation?2023-03-02T10:38:49+00:00

A ventilation system that compromises of either a central ducted continuously running extract fan (centralised a.k.a CMEV), or a set of local continuously running extract fans in the wet rooms (de-centralised a.k.a DMEV), or a combination of both. Fresh air is supplied into the habitable rooms via background ventilators where applicable.

What is Mechanical Ventilation with Heat Recovery (MVHR)?2023-03-02T10:40:19+00:00

A mechanical ventilation system that compromises of a centrally ducted unit with supply and extract fans. Air is extracted and passed through a heat exchanger, to fresh air from outside which is supplied and is also passed through the heat exchanger to recover the heat from the extracted air. MVHR is the most energy efficient method of mechanical ventilation within dwellings, as the building’s heat is recovered, opposed to other methods which extract only that expel the heat.

Do MVHRs require any ongoing maintenance?2023-03-02T10:39:53+00:00


MVHR systems have filters on both the supply and extract side. The filters require checking regularly, cleaning and replacing. Once you know how your filters are performing you can assess how often they need to be cleaned or replaced. We recommend checking your filters after 1 month, then every 3 months for the first year. This will allow you to build a maintenance schedule tailored to your MVHR and how the filters are performing. This is generally a simple process, however Ecotest would be happy to set up an ongoing filter change maintenance plan for your MVHR system.

There are also other aspects to an MVHR system that require less frequent maintenance (such as cleaning) and in these instances you should always follow the manufacturer’s guidance.

If you have any questions or require support please contact us.

Do MVHRs work with Heat Pumps?2023-03-02T10:40:48+00:00

In some cases yes it is possible to integrate your MVHR and Heat Pump in order to provide air tempering. Please contact us for more information.

A first-class company to deal with who designed and supplied a ventilation system for our new build farmhouse, a special mention for Alex who went the extra mile to ensure our timetable was met. I have no hesitation in recommending this company.

Robin Dean, Self-Build Client

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