Home Ventilation Systems in Somerset
Somerset is a county with a distinctive character — rolling hills, river valleys, a high water table across the Levels, and a significant proportion of older housing stock. It’s also a county where damp and condensation are genuinely common household problems, not just occasional inconveniences.
Older properties in particular were built at a time when draughts did the job of ventilation naturally. Modern draught-proofing and double glazing, while excellent for energy efficiency, have closed off those natural air pathways. The result is that moisture produced by everyday living — cooking, showering, breathing — has nowhere to go, and it accumulates within the fabric of the home.
A Positive Input Ventilation (PIV) system addresses this directly and permanently. It’s one of the most cost-effective home improvements homeowner can make, and it’s something we install regularly.
Arrange a Free Site Survey
One of our friendly team will visit your premises to determine the best suited unit for your space
Positive Input Ventilation by Nuaire
We install Positive Input Ventilation systems exclusively from Nuaire, who are widely regarded as the UK’s leading manufacturer in this space. Their systems are specified and installed across thousands of UK homes each year, and their track record for reliability and effectiveness is exceptional.
Here’s how a Nuaire PIV system works in practice. A compact unit is installed in the loft space — out of sight and out of the way. It draws fresh air in from outside, passes it through a filter that removes airborne pollutants, dust particles and pathogens, and then gently pushes that clean, filtered air into the living areas of the home via a ceiling-mounted diffuser.
As this continuous supply of fresh air enters the property, it creates a slight positive pressure throughout the home. This gentle pressurisation pushes stale, humid air outward through natural gaps in the building fabric — extracting moisture, allergens, cooking odours, and pollutants in the process.
The key benefits are:
Trusted Nuaire Installers in Somerset
Air conditioning controls how warm or cool your home feels, while ventilation looks after the quality of the air you breathe. To give our Somerset customers the best of both, we install ventilation systems from Nuaire, a British manufacturer that has been making them in South Wales since 1966.
Mechanical Ventilation with Heat Recovery
Mechanical Ventilation with Heat Recovery (MVHR) looks after the air in every room of your home, day and night. A Nuaire MRXBOX unit, usually tucked away in the loft or a cupboard, is connected to discreet ducts that draw moist, stale air out of your kitchen and bathrooms. At the same time, it brings in fresh air from outside, cleans it through filters and sends it to your bedrooms and living spaces. Before the old air leaves the house, the unit takes its warmth and passes it to the incoming air, so you get a steady flow of fresh air without wasting the heat from your heating system.
Whether you’re building a new home, adding an extension or renovating a property in Somerset, MVHR is a worthwhile investment that will keep your home comfortable and energy efficient for years to come.
The Benefits at a Glance
PIV vs MVHR: Which System Suits your Home?
Both systems will make your home fresher and drier, but each one works best in different situations. This quick comparison should help you see which is the better fit.
| PIV | MVHR | |
|---|---|---|
| The basics | Fills your home with filtered fresh air, gently pushing damp air out | Removes stale air and replaces it with filtered fresh air throughout |
| Equipment | One unit in the loft, or wall-mounted where there’s no loft | Main unit linked to ducts in each room |
| Reuses heat | No | Yes, warmth is captured before air leaves |
| Installation | Fast and simple, often done in a day | A larger job, ideally fitted during building work |
| Upfront cost | Budget friendly | A bigger investment, balanced by lower heating costs |
| Ideal for | Existing houses, period properties and rented homes | New builds, extensions and renovations |
| Stops condensation and mould | Yes | Yes |
Still weighing up your options? Book a free site survey and one of our team will visit your home and recommend the best system for your property.
Our Home Ventilation Installation Process
1. Initial Conversation
Get in touch by phone, email, or via our contact form. We'll ask a few brief questions about your property and the issues you're experiencing to make sure a PIV system is likely to be the right solution for you.
2. Free Site Survey
One of our engineers will visit your home at a time that suits you. They'll assess the property and confirm the most appropriate system for your specific situation.
3. No-Obligation Quote
Following the survey, we'll provide a clear, itemised quote with no hidden costs. We'll explain exactly what's included and answer any questions before you make a decision.
4. Professional Installation
Our team will carry out the full installation to Nuaire's recommended standards, leaving your home clean and tidy. We'll walk you through how the system works.
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FAQs
In most cases, yes. Mould in the home is almost always caused by excess moisture, and a PIV system removes the conditions that allow it to develop. Where mould is caused by structural water ingress rather than condensation, that underlying issue would need to be addressed separately — but our engineer will flag this during the site survey if relevant.
Very quiet. The unit sits in the loft and operates continuously at a low speed. In normal circumstances you won’t hear it from the rooms below. Some customers describe a very faint background hum if they stand directly beneath the diffuser in a completely quiet room — but in everyday living conditions, it’s effectively silent.
This is a common concern, and the answer is no. Nuaire PIV units are designed to draw air from the loft void, where the temperature is naturally higher than outside. Many models also include a heating element that gently warms the incoming air during colder months. The overall effect on your home’s temperature is negligible.
Often, yes. It’s simplest to fit during building work, but many existing homes have enough loft or ceiling space for the ducts. During your free site survey, we’ll check whether it’s a practical option for your property.
No. Nuaire MVHR units have a summer bypass, which lets fresh air into your home without passing it through the heat exchanger. This helps your home stay cool in warmer weather.