MVHR and heat recovery system supply and installation. Designed for clean air, balanced ventilation, and compliance with building regulations.
✓ Designed to meet Building Regulations Part F ✓ Installed and commissioned by qualified engineers
“Smooth process and clear updates throughout. Our MVHR system performs perfectly.” – James R., Contractor
Mechanical Ventilation with Heat Recovery replaces stale indoor air with fresh filtered air while recovering heat from the outgoing air. It provides: • Continuous fresh air throughout the property • Removal of moisture, odours and pollutants • Reduced heat loss through controlled ventilation MVHR systems are commonly used in modern airtight homes, extensions, and renovation projects.
Where MVHR Works Best MVHR is best suited to: • New build homes • Major refurbishments • Extensions with improved airtightness • Properties where ventilation and condensation control is required It is not normally suitable for small retrofit projects without ceiling voids or duct routes.
Step 1: Message us on WhatsApp and send your drawings or plans. Step 2: We review your layout and confirm system requirements.
Step 3: You receive your quotation. Step 4: Deposit invoice issued and installation scheduled.
Step 5: System installed, commissioned, and handed over.
.webp)
An MVHR unit is installed in a loft, cupboard, or plant space. From this unit: • Fresh air is supplied to bedrooms and living areas • Stale air is extracted from kitchens, bathrooms, and utility rooms • Heat from extracted air is transferred to the incoming fresh air This maintains consistent airflow and indoor air quality.
An MVHR unit is installed in a loft, cupboard, or plant space. A network of ducts runs throughout the building:
This maintains consistent airflow and indoor air quality.
.webp)
System Layout and Installation Requirements For MVHR to work effectively, the property must allow for ducting routes. Typical requirements: • Space to install the MVHR unit (loft, cupboard or plant room) • Ceiling, wall or floor voids for duct runs • Access to external walls or roof for intake and exhaust terminals Ductwork will run to each room with supply and extract valves installed in ceilings.
For MVHR to work effectively, the property must allow for ducting routes. Typical requirements:
Ductwork will run to each room with supply and extract valves installed in ceilings.
Ducting Systems and Options MVHR systems are installed using one of two main ducting layouts: • Radial semi rigid duct systems • Leg and branch rigid duct systems Radial Semi Rigid Duct System This is the most common system used in modern residential installations. • Uses small diameter semi rigid duct, typically 75mm or 90mm • Each room is served by its own dedicated duct run from a central manifold • Fewer joints and connections across the system Typical benefits: • Easier to install in ceiling, wall or floor voids • Better control of airflow to each room • Reduced air leakage risk • Reduced noise transfer between rooms
MVHR systems are installed using one of two main ducting layouts:
The most common system used in modern residential installations.
Leg and Branch Rigid Duct System This is the more traditional ventilation layout used in larger or more complex systems. • Uses rigid ductwork, typically 100mm to 150mm diameter • One main trunk duct with branches into each room • Suitable for longer runs or exposed duct installations Typical characteristics: • Requires more space for duct runs • Used where airflow volumes are higher • May require acoustic attenuation depending on layout Which System Is Used The system used will depend on property layout, available ceiling or floor void space, airflow requirements, and installation access. Most domestic properties use radial semi rigid duct systems.
The more traditional ventilation layout used in larger or more complex systems.
The system used will depend on property layout, available ceiling or floor void space, airflow requirements, and installation access. Most domestic properties use radial semi rigid duct systems.
We provide manufacturer warranties on all MVHR systems. To maintain warranty: • Annual servicing is required • Servicing must be completed by a qualified engineer We offer maintenance plans to keep systems compliant and operating correctly. Filters should be checked and replaced regularly. The system should be serviced annually. Regular servicing ensures airflow remains balanced and maintains system performance.
We provide manufacturer warranties on all MVHR systems. To maintain warranty:
We offer maintenance plans to keep systems compliant and operating correctly.
Filters should be checked and replaced regularly. The system should be serviced annually. Regular servicing ensures airflow remains balanced and maintains system performance.
.webp)
Is MVHR required for building regulations?
MVHR is commonly used to meet Part F ventilation requirements in airtight homes.
Does MVHR replace opening windows?
No. Windows can still be opened, but MVHR provides continuous controlled ventilation.
Will MVHR reduce condensation?
Yes. Continuous air exchange removes moisture and reduces condensation risk.
Is MVHR noisy?
When installed and balanced correctly, systems operate quietly.
Do you service MVHR systems?
Yes. We provide annual servicing and filter replacement.
MVHR installations vary depending on size and layout.
Typical ranges:
Final cost depends on property size, number of rooms, ducting routes, and installation complexity.
MVHR installations vary depending on size and layout.
Typical ranges:
Final cost depends on property size, number of rooms, ducting routes, and installation complexity.
Our engineers complete: • Installation of MVHR unit • Ductwork installation throughout the property • Supply and extract valves installation • External wall or roof terminals • System commissioning and airflow balancing We provide commissioning results and system settings on completion.
Our engineers complete:
We provide commissioning results and system settings on completion.
Your electrician must provide: • A 6A switched fused spur at the MVHR unit location Optional boost function: If you want the system to increase airflow when lights are switched on in bathrooms: • Your electrician must run switched live feeds from each light back to the MVHR unit • We complete final connections into the spur and switched feeds
Your electrician must provide:
Optional boost function:
If you want the system to increase airflow when lights are switched on in bathrooms:
The MVHR unit produces condensate. Your plumber must provide: • A drain positioned below the unit • An upstand with a waterless trap We complete the final connection to the unit.
The MVHR unit produces condensate.
Your plumber must provide:
We complete the final connection to the unit.
MVHR systems are controlled by: • A fixed wall controller • Optional boost switches • Optional Wi-Fi control depending on system type
MVHR systems are controlled by:
We allow to insulate the main ducts to and from outside. Internal ductwork is assumed to sit within the building fabric and will be uninsulated.
If ducting runs through a vented loft space:
Before our team arrives, please ensure:
We will confirm all requirements with you before the installation date.
Once installation is complete, you will receive:
Your system will begin operating immediately.
Once installation is complete, you will receive:
Your system will begin operating immediately.
The trusted name in air conditioning, refrigeration, and ventilation. Rely on us for exceptional service you can count on. Fully accredited for quality and safety.
ClimateWorks UK Limited, 11 Vickers House, Basingstoke RG24 9NP
Registered in England & Wales: 14878167
Copyright 2025 - ClimateWorks
.png){kind=small}
