MVHR Installation

MVHR Installation Scotland

All brands. All system types. Design coordination through commissioning and handover. Compliant with Scottish Building Standards Section 3.14 and Building Regulations Part F.

⚡ Scotland Passivhaus 2028

Scotland's government has confirmed a Passivhaus Equivalent standard, mandatory for all new housing from March 2028. MVHR is the primary ventilation solution for Passivhaus-compliant buildings. Subcontractor capacity in Scotland is severely limited — plan your supply chain now.

What Is MVHR

Mechanical Ventilation with Heat Recovery

MVHR simultaneously extracts stale, humid air from wet rooms (kitchens, bathrooms, en suites) and supplies fresh, tempered air to living and sleeping spaces. A heat exchanger in the unit recovers 70–95% of the heat that would otherwise be lost — dramatically reducing heating energy demand.

It is the primary ventilation technology for Passivhaus, near-Passivhaus, and low-energy new-build construction across the UK.

95%
Maximum heat recovery efficiency (premium units)
70%
Typical heat recovery — standard MVHR units
Why Specify MVHR

Mandatory for Passivhaus. Required under Section 3.14 (Scotland) for airtight dwellings. Reduces heating bills. Eliminates condensation and mould. Provides continuous filtered fresh air. Future-proofs new build for tightening building regulations to 2028 and beyond.

Brands We Install

Brand-Independent.
Best Fit for Your Project.

Zehnder
Switzerland
PAUL
Germany
Nuaire
UK
Vent-Axia
UK
Dantherm
Denmark
Vallox
Finland
Brink
Netherlands
Titon
UK
Nilan
Denmark
Lindab
Sweden

We are brand-independent — we install the system specified for your project. Commissioning and handover documentation produced regardless of brand.

Scope of Works

01
Design Coordination
Review architectural drawings and MVHR specification. Coordinate duct routes with structural engineer and main contractor. Flag conflicts early — before groundworks or first fix.
02
RAMS Documentation
Full Risk Assessment and Method Statement supplied before site start. Specific to your project, reviewed for each unit or phase.
03
Unit & Ductwork Installation
Install MVHR unit (loft, plant room or cupboard). Install rigid ductwork runs — typically semi-rigid radial from distribution box. Install valves, grilles and diffusers in all rooms.
04
Commissioning & Balancing
Commission and balance airflows to design rates. Measure and record room-by-room supply and extract flow rates. Produce commissioning certificate per dwelling or per zone.
05
O&M Handover
Operation and Maintenance manual including filter schedule. As-built records. Commissioning certificate. All ready for the SAP assessor, building control and end occupier.
06
Defects Resolution
Punch list and defects resolution at practical completion. Ongoing support during defects liability period. Direct contact with Technical Director for any post-handover queries.

Market Opportunity

Scotland Passivhaus
Equivalent 2028

Scotland's government has confirmed a Passivhaus Equivalent building standard, mandatory for all new housing from March 2028. Every new-build housing project in Scotland must comply.

MVHR is the primary ventilation solution for Passivhaus-compliant buildings. Current Scottish MVHR subcontractor capacity is severely limited — housing associations, councils and private developers are actively seeking certified MVHR subcontractors now.

Cliventa is positioning to be one of the leading MVHR installation subcontractors in Scotland ahead of this legislation. If you are planning housing projects that need to comply by 2028, contact us now.

2028
Scotland Passivhaus Equivalent mandatory date for all new housing
Target: RSLs & Housing Associations
Midlothian Council · Fife Council · Angus Council · Link Group · Places for People Scotland
Cliventa Status
BPEC Domestic Ventilation — booking Q4 2026 (Forth Valley College)

Compliance & Standards

Section 3.14 — Scottish Technical Handbook
The primary ventilation standard for new-build dwellings in Scotland. Cliventa installations comply with Section 3.14 requirements for mechanical ventilation systems.
Building Regulations Part F (England/Wales)
Approved Document F compliance for ventilation of dwellings. Relevant for cross-border projects and English developer schemes.
BESA DW/143 — Airflow Measurement
Commissioning to DW/143 airflow measurement protocol. Room-by-room commissioning certificates produced on every installation.
Passivhaus Standard (EnerPHit)
Experience with Passivhaus and near-Passivhaus system specification. Working knowledge of airtightness requirements and MVHR sizing for ultra-low energy buildings.

MVHR Project
in Scotland?

Send us your drawings and MVHR specification. We'll respond with a detailed quote within 48 hours. Brand-independent advice included at no extra cost.

Request a Quote → info@cliventa.co.uk