About Us
Nest Home Improvment Ltd are specialists in PIV ventilation systems, whilst delivering solutions that eliminate damp and mould, ensuring your home stays comfortable, dry, and protected. We combine proven expertise with exceptional standards of workmanship to deliver high-quality, long-lasting results. If you're concerned about damp, condensation and mis-installed cavity wall insulation, then you're in the right place.
Experienced Team
Our accredited team has a wealth of experience and knowledge in installing and maintaining PIV
systems.
High-Quality Results
We are committed to delivering
high-quality results that will exceed your expectations, whichever of our services you require.
Industry Leading Prices
National coverage providing the
most competitive prices
nationwide.
What certified industry specialists have said about cavity wall insulation
Botched cavity wall insulation involves improper installation, often under government schemes, leading to severe issues like damp, mould, and structural damage because insulation material blocks the cavity, traps water, or isn't suitable for the home's masonry. This can ruin properties, make them unsellable, and harm residents health (asthma, eczema, and cardiovascular illness). Solutions involve getting the installer to fix it (as per GOV.UK), but many victims feel abandoned by redress systems, leading to calls for independent inquiries and specialist remediation to remove the faulty material. But a preventative cure is available by way of installing PIV units
High Failure Rate
98% of external wall insulation (EWI) and 49% of internal wall insulation (IWI) installed under these schemes have major flaws
Expert assessment
Poor design, inadequate ventilation, incorrect assessment, and bad workmanship traps rainwater, leading to mould, rot, and dampness.
What homeoweners say
Homeowners report severe black mould, condensation, respiratory issues, and crumbling plaster, making homes unsuitable for habitation
Advanced thermal management
The government's consumer protection system failed to flag major issues until late 2024, despite issues existing for years.
Key Problems Moisture Causes
Mould poses serious health risks to residents, triggering
severe respiratory issues like asthma attacks, wheezing,
coughing, bronchitis, and chest infections - especially
harmful for children, the elderly, and asthmatics.
It causes allergic reactions such as runny nose, sneezing, itchy/watery eyes, skin rashes, and sinusitis, while irritating eyes, nose, throat, lungs with burning, soreness, and phlegm, leading to fatigue, headaches, and "brain fog".
Mould heightens infection risks like aspergillosis or fungal pneumonia in immunocompromised or chronic lung patients, cardiovascular disease and worsens conditions like COPD and allergies, with mycotoxins sparking inflammation, immune changes, and even mental health declines.
Structurally, mould destroys plaster, paint, and wallpaper through staining, bubbling, and flaking from trapped moisture, while rotting wooden frames, joists, and flooring as damp spreads.
It weakens walls, causing cracks from ongoing saturation and expansion/contraction, promotes pests like dust mites and rodents. This could result in failed surveys along with failed insurance and mortgage applications
Nest Home Improvements LTD delivers the UK’s most trusted ventilation and moisture-control systems through Advanced PIV Eco technology (Positive Input
Ventilation) combining expert diagnosis, premium treatments, and long-term protection.
These Ventilation systems offer whole-house coverage by drawing fresh, filtered air from the loft or outside and gently di tributing it to create positive air pressure, reducing moisture, condensation, damp, mould,
and indoor pollutants for a healthier living environment—with units available for both lofts and wall-mounted installations in flats.
Nuaire Drimaster
Eco Basic Loft Control
Positive Input
Ventilation Unit
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5
YEAR
WARRANTY
Efficient ventilation solution designed to reduce condensation, damp, and mould throughout the home.
Loft-mounted Positive Input Ventilation (PIV) system that supplies fresh, filtered air into the property for improved indoor air quality.
Simple manual control located in the loft, allowing easy adjustment of airflow rates.
Energy-efficient DC motor ensures low running costs
and quiet operation.
Helps maintain consistent temperature and humidity levels, promoting a healthier, fresher living environment.
Backed by Nuaire’s proven reliability and quality engineering, trusted across UK homes.
Delivered with a 5 year parts and maintenance plan.
Nuaire Drimaster
DRI-ECO-HEAT-HCS
Positive Input
Ventilation Unit
7
YEAR
WARRANTY
Premium Positive Input Ventilation (PIV) system designed to create a healthier, more energy-efficient indoor environment.
Engineered for modern homes, introducing a continuous supply of filtered, fresh air from the loft space
Automatically balances humidity and temperature levels to maintain consistent indoor comfort.
Equipped with an integrated heater to gently warm incoming air when required
Delivered with a 7 year parts and maintenance plan.
Includes smart sensors for automatic control of humidity and temperature.
Effectively combats condensation, damp, and mould at their source
Enhances indoor air quality, reducing allergens and moisture build-up.
Improves thermal comfort and overall energy performance throughout the home.
An ideal solution for long-term protection and a balanced, comfortable indoor climate
Nuaire Flatmaster PPU – No-Loft Condensation Control Unit
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5
YEAR
WARRANTY
Perfect for flats or properties without loft space
Uses Positive Pressure Ventilation (PPV) to introduce fresh, filtered air while expelling stale, moisture-laden air.
Effectively combats condensation, damp, and mould in flats, bungalows, and apartments
Features a compact, wall-mounted design ideal for limited-space installations.
Equipped with adjustable airflow settings to maintain balanced humidity and air quality.
Improves indoor air quality, reducing allergens,
pollutants, and odours.
Uses Positive Pressure Ventilation (PPV) to introduce fresh, filtered air while expelling stale, moisture-laden air.
Supported by Nuaire’s proven reliability and
engineering excellence, trusted in UK homes for over
50 years.
Features a compact, wall-mounted design ideal for limited-space installations.
Delivered with a 5 year parts and maintenance plan.
Customer Satisfaction
& Peace of Mind
Transparent communication
Clear updates and honest advice from the initial survey through to final installation.
Proven reliability
Backed by long-term warranties and a strong record of successful outcomes.
Tailored solutions
Every home assessed individually to ensure the most effective and lasting results.
Lasting confidence
Enjoy complete peace of mind knowing your property is protected today and well into the future.
Finance avaialable
At Nest Home Improvements LTD we understand that our customers want to improve the energy efficiency of their home to help reduce their energy bills. Make the vital energy saving improvements to your home that will make your home more energy efficient.
What our customers say
Real feedback from homeowners who trust Nest Home Improvment for warmer, more energy-efficient homes.
" Nest installed our windows and doors and we are very happy with the service . The install team were fast and efficient "
Harry Samuel
"We have used Nest to have our conservatory roof insulated and have used the room every day since it was completed ! It’s changed the room and we are very pleased overall"
Jennifer Carson
"Recently had a PIV system installed to reduce the damp issue we’ve been experiencing upstairs in our property. So far so good!"