
Better insulation and more airtight homes keep heat in - but they also mean moisture and stale air have fewer ways to escape naturally. Without adequate ventilation, that can show up as condensation, damp patches, mould around windows and in bathrooms, and a general drop in indoor air quality.
BS Renewables installs extract fans and ventilation systems for homes and businesses across Pontypool and South Wales - either as a standalone fix for an existing damp or condensation problem, or as part of a wider insulation and energy efficiency project.
It protects the insulation and efficiency work you've invested in. Insulating a property without addressing ventilation can trap moisture inside, leading to condensation and mould - undermining the comfort improvements insulation is meant to deliver. We factor ventilation into every insulation job we carry out.
It protects your property. Persistent damp and condensation can damage plaster, decoration, window frames, and in some cases the building fabric itself over time.
It protects air quality. Bathrooms, kitchens, and utility areas generate significant moisture and airborne particles daily - proper extraction removes this at the source rather than letting it circulate through the property.

We look at the whole property, not just the symptom - a damp patch is often a ventilation issue, not just a cleaning job.
Our team are qualified electricians, so extract fan wiring and any related electrical work is handled to a proper standard, not bolted on as an afterthought.
We factor ventilation into every insulation job, so if you're having insulation fitted, this is considered from the outset rather than as a separate problem later.
Over 10 years working on homes and business premises across South Wales.

Common domestic ventilation needs include:
Bathroom extract fans - removing moisture generated by showers and baths before it settles as condensation.
Kitchen extract fans - clearing steam, cooking odours, and airborne grease.
Utility room extraction - for spaces with washing machines or tumble dryers.
Whole-property ventilation - for homes that have been heavily insulated or draught-proofed and need a more comprehensive ventilation strategy.
We assess where moisture is being generated in your home and where it's currently escaping to (or failing to), before recommending the right fix.
Commercial and business premises often have ventilation needs beyond a single extract fan, particularly in:
Commercial kitchens and food preparation areas.
Bathrooms and washroom facilities.
Workshops and industrial units with fumes, dust, or heat to extract.
Offices and retail spaces where air quality affects staff and customer comfort.
We assess your premises and usage pattern to recommend ventilation that meets both comfort and any relevant regulatory requirements for your type of business.

Persistent condensation on windows, mould in bathrooms or around window frames, or a general stuffy or damp smell in a room are common signs that ventilation isn't keeping up with moisture being generated.
An extract fan addresses the ongoing cause of condensation, but existing mould usually needs treating separately. We can advise on the right order of works.
In many cases, yes - insulating a property without adequate ventilation can trap moisture inside. We factor this into every insulation job we carry out.
Yes - windowless bathrooms and internal rooms typically need mechanical extraction even more than rooms with natural ventilation, and building regulations generally require it.
Yes - we install ventilation and extraction for commercial kitchens, washrooms, workshops, offices, and retail premises.
Most domestic extract fan installations are completed within a few hours with minimal disruption. Larger commercial ventilation projects are scoped and scheduled as part of your quote.
If you're dealing with condensation, damp, or poor air quality - or planning insulation work and want it done properly - get in touch for a straightforward, no-obligation assessment.

John Doe
Finance Manager

John Doe
Finance Manager

John Doe
Finance Manager