What Building Regulations apply to ventilation installation?

Building Regulations Part F covers ventilation in new build and substantially renovated buildings in England and Wales. Equivalent Scottish Building Standards (Section 3 — Environment) apply in Scotland. Cliventa Engineering installs all systems to the applicable standard.

Do you provide ductwork installation as a subcontracting package?

Yes. A significant part of our work is providing ductwork and ventilation installation packages to M&E contractors and main contractors. We supply full RAMS documentation, site supervision and digital commissioning certificates.

Ventilation & Ductwork Installation

Q: What is the difference between MEV, PIV and MVHR?

MEV (Mechanical Extract Ventilation) extracts stale air from wet rooms. PIV (Positive Input Ventilation) pushes fresh filtered air into a property. MVHR (Mechanical Ventilation with Heat Recovery) both extracts stale air and supplies fresh air while recovering heat energy. The right system depends on building type, use and energy performance targets.

MEV, PIV and MVHR systems for domestic and commercial properties across Scotland. Fully compliant with Building Regulations Part F and Scottish Building Standards Section 3.

Subcontracting packages for M&E contractors and main contractors. Digital commissioning certificates and photo reports on every project.

Request a Quote Submit Drawings

Ventilation Systems We Install

System Type 01

MEV

Mechanical Extract Ventilation

A continuous extract system that removes stale, humid air from wet rooms — kitchens, bathrooms, utility rooms — via a central fan unit and ductwork network. Suitable for dwellings with poor natural ventilation and properties where condensation and mould are persistent problems.

ResidentialSocial HousingRetrofitPart F

System Type 02

PIV

Positive Input Ventilation

Supplies a continuous stream of fresh, filtered air into a property — typically from the loft space — creating a positive pressure that displaces stale air. Cost-effective solution for damp and mould remediation in existing dwellings, social housing and residential retrofit. Simple installation with minimal disruption.

Damp RemediationRetrofitSocial HousingResidential

System Type 03

MVHR

Mechanical Ventilation with Heat Recovery

A whole-house ventilation system that simultaneously extracts stale air and supplies fresh air while recovering up to 90% of heat energy via a heat exchanger. The premium solution for new build, PBSA and high-performance retrofit projects. Reduces heating energy demand and maintains excellent indoor air quality year-round.

New BuildPBSACommercialNet Zero

Full Scope of Works

What's Included in a Ventilation Package

From initial site survey through to digital commissioning certificate — we manage the complete installation process.

Site Survey & Assessment

Tablet-based digital survey capturing existing conditions, airflow measurements and compliance requirements.

Ductwork Installation

Rigid and flexible ductwork in galvanised steel, PVC or insulated systems. Hangers, brackets and supports included.

Fan Unit Installation

Central fan units, inline fans and continuous running fans. All makes and models including Vent-Axia, Nuaire and Greenwood.

Grilles, Valves & Terminals

Supply and fit of all air terminal devices — grilles, circular valves, linear diffusers, transfer grilles and attenuators.

Testing & Commissioning

Airflow testing to design specification. Digital commissioning certificates issued at practical completion.

RAMS & Documentation

Method statements, risk assessments and O&M manuals. Photo progress reports throughout installation.

Subcontracting Packages

Working With M&E Contractors

We provide reliable ductwork and ventilation subcontracting packages to M&E contractors and main contractors across Scotland. Not labour-only supply — we bring supervision, RAMS and accountability to every package.

✓Full RAMS documentation supplied
✓Site supervision on all packages
✓Photo progress reporting
✓Digital commissioning certificates
✓PCS Quick Quote registered supplier
✓£10m EL, £5m PL, £1m PI insurance

Submit a Package Enquiry Send Drawings

Ductwork installation in commercial building — Cliventa Engineering

Ventilation Installation — FAQs

What is the difference between MEV, PIV and MVHR?

MEV extracts stale air from wet rooms via a central fan. PIV pushes fresh air in from the loft, displacing stale air. MVHR does both simultaneously while recovering heat. MEV and PIV are cost-effective for social housing retrofit; MVHR is the high-performance solution for new build and PBSA.

What Building Regulations apply to ventilation in Scotland?

Scottish Building Standards Section 3 (Environment) is the equivalent of Building Regulations Part F in England. All our installations are designed and installed to meet the applicable Scottish standard, including airflow rates for each room type and system type.

Do you provide testing and commissioning?

Yes. All installations include airflow testing to verify design specification is met. We issue digital commissioning certificates at practical completion. These are essential for Building Regulations compliance and provide documentary evidence for housing associations and public-sector clients.

How quickly can you mobilise for ventilation works?

We typically mobilise within 24–48 hours for urgent works across Central Scotland. For planned programmes, we can schedule flexible team deployment to match your programme requirements.

Ready to Discuss Your Ventilation Project?

Send us your drawings and specification and we'll provide a detailed quote within 48 hours.

Request a Quote +44 7388 088741