ATMOS®
The ATMOS® range are loft mounted Positive Input Ventilation (PIV) systems that are designed to reduce mould and condensation and improve indoor air quality within a property.
Stay Compliant.
Damp and mould are serious issues affecting tenants’ wellbeing, and landlords are now required by law to take action under Awaab’s Law and other housing regulations.
With tighter housing standards and tenant legislation in place, we’re here to help landlords stay compliant and protect their properties from damage and decay.
We provide tailored ventilation solutions and mould prevention advice, so you can protect your tenants and properties with confidence.


Our domestic ventilation specialists will assess your property, identify ventilation needs and recommend the most effective solution for your home. This service is free, with no obligation.

Recognised across the industry for innovation and quality, our ventilation systems are engineered for performance, efficiency and long-term reliability.

Our tailored solutions help minimise moisture build-up, improving indoor conditions and protecting your property from the damage caused by condensation.

envirovent is proud to hold Which? Trusted Traders approval for our national installation service.

Keeping tenants healthy and properties protected isn’t just good practice, it’s becoming a compliance necessity. Poor ventilation leads to condensation and mould, which can damage walls, plaster, and furnishings, increase maintenance costs, and trigger legal consequences.
With regulations tightening around damp and mould in rented homes, landlords need long-term prevention, not short-term fixes. Effective ventilation helps maintain compliant homes while protecting tenants’ peace of mind for years to come.
Prevent mould, damp and condensation
Reduce maintenance and tenant changeover costs
Improve tenant wellbeing through better air quality and moisture control
Our local ventilation specialists work with landlords, letting agents, and housing professionals across the UK.
Whether you manage a single apartment or a portfolio of properties, we can assess problem areas, recommend compliant solutions, and help you protect your tenants - all year round.
We help landlords resolve damp, leaks, humidity, and practical ventilation issues by preventing moisture build-up and keeping homes dry.
Accredited by NICEIC and members of the Property Care Association, our team delivers professional, requirements-based guidance for rental homes.
£0
Average monthly rent loss when a property sits empty
£0
Average redecoration cost
£0+
Typical legal compensation payout for severe mould cases
Explore our range of PIV, extractor fans, and MVHR. Or get expert advice, system design support and compliance guidance for your property or project.
The ATMOS® range are loft mounted Positive Input Ventilation (PIV) systems that are designed to reduce mould and condensation and improve indoor air quality within a property.
The CYCLONE 8 is a continuous running extractor fan suitable for WCs, bathrooms, utility rooms and kitchens. It is a major advancement in extractor fan technology; it utilises a centrifugal impeller and our Intellitrac technology which ensures extremely high airflow performance and humidity levels are controlled all year round.
The ATMOS® WALL range are wall mounted Positive Input Ventilation (PIV) systems that are designed to reduce mould and condensation and improve indoor air quality within flats or apartments.
The energiSava® 260 is a mechanical ventilation with heat recovery unit incorporating an EC motor, providing optimum ventilation for a property with a minimum loss of energy.
Understanding what’s causing them in your home is essential to protecting both your property and your health. If you’re dealing with condensation, damp or mould, you’re not alone — thousands of households across the UK experience the same issues every year.
Problems like condensation and mould can affect any property, old or new. What matters is understanding the cause and knowing the steps that can help reduce it.

Condensation is excess moisture in the air settling on cold surfaces, often leading to damp and mould—discover how to prevent it.

Unwanted moisture inside a property caused by leaks, rising water, or poor ventilation.

A fungal growth that thrives in damp, poorly ventilated areas and can affect health and air quality.
See how our expert teams and solutions help customers tackle mould and improve indoor air quality.
If you have an issue with condensation, mould build up or ventilation issues then envirovent are the company to go to. I have been using their services for 10 years and have had a number of my rental properties surveyed by envirovent where they come up with a solution to eradicate mould issues by creating extra ventilation methods or better ventilation.
Landlord in Croydon
We have suffered condensation mould and running water on our windows for over 40 years. We have tried numerous products to remedy this and never really succeeded. In a matter of days of having this system fitted our problems have been solved. Really pleased. Great service, a brilliant system couldn’t ask for anymore.
Homeowner
We are a returning customer to envirovent. We know their systems work to reduce/remove problems with condensation & mould. We would highly recommend their products & all aspects of their service from initial enquiry, through to installation.
Homeowner
Once you request a free survey*, one of our local ventilation specialists will get in touch to speak to you and discuss your concerns. If ventilation can provide a long term solution, we’ll arrange a convenient time to visit your home.
During the free survey* one of our local ventilation specialists will:
Assess any condensation or mould problems in your property
Take readings of the relative humidity levels
Identify any underlying problems and make recommendations for a long term solution
Free, no-obligation advice for property and homeowners to help improve your home’s ventilation and indoor air quality.
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*Please see additional limitations and fees for the below postcodes and areas
Subject to geographical locations in DG, KA, ML, DD, FK, PH, PA, AB, IV, KW, ZE.
In BT postcodes a £60 fee is applied, which is deductible from the final bill.
In postcodes SS, RM, N, IG, EC, E1 – E9 & E20, CM, SE, SW, NN, NG31-34, PE, IP, NR, CB, CO, LE & SG we are unable to provide an in person survey, please contact us at domestic@envirovent.com or 01423 810 810 to discuss options available.
Our knowledge Hub is your go-to resource for expert guidance on ventilation, compliance, and solving condensation, mould, and indoor air quality issues.
Experts solutions and support. From surveys and product selection to design, training and installation.
Need help with mould or condensation problems - arrange a free survey today
Our nationwide network of trained engineers are Which accredited
Select the right ventilation product for your home, property or project
Get expert advice from our ventilation specialists on condensation, mould, products, system design, compliance and training