Breathe Easy — Healthier Air, Drier Homes
As Scottish homes become better insulated, proper ventilation becomes essential. Our demand-controlled mechanical extract ventilation (DMEV) systems remove moisture and stale air automatically — preventing damp, condensation, and poor indoor air quality.
The Missing Piece in an Energy-Efficient Home
Modern insulation and draught-proofing dramatically reduce heat loss — but they also reduce the natural air movement that keeps homes dry and healthy. Without adequate ventilation, moisture from cooking, bathing, and breathing accumulates, leading to condensation, mould growth, and poor indoor air quality.
DMEV (Demand-Controlled Mechanical Extract Ventilation) is the solution recommended under PAS 2030/2035 for most retrofit projects. It continuously extracts stale, moist air from wet rooms at a low background rate, automatically boosting when humidity rises — keeping your home fresh without wasting heat.
PAS 2030/2035
Compliant ventilation strategy
<25dB
Near-silent background operation
1 day
Typical full installation time
What DMEV Does for Your Home
Eliminates Condensation
Continuous low-level extraction removes moisture before it can settle on cold surfaces, eliminating the condensation that leads to black mould and damp patches.
Improves Indoor Air Quality
Stale air, cooking odours, VOCs, and allergens are continuously removed, creating a healthier living environment — particularly important for asthma and allergy sufferers.
Demand-Controlled Efficiency
Humidity sensors automatically boost extraction when moisture levels rise — in the shower, cooking, or drying laundry — then return to background rate, minimising heat loss.
PAS 2030/2035 Compliant
DMEV is the ventilation strategy specified in PAS 2030/2035 for most whole-house retrofit projects. Required for ECO4, Warm Homes Plan, and HES-funded works.
Quiet & Unobtrusive
Modern DMEV units operate at near-silent levels during background ventilation — typically less than 25dB — so you'll barely notice they're there.
Protects Your Investment
Proper ventilation protects your insulation, structure, and decorations from moisture damage — extending the life of your retrofit investment.
Professional Installation from Survey to Sign-Off
Ventilation Assessment
We assess your home's current ventilation provision, identify problem areas, and calculate the correct airflow rates for each wet room.
System Design
We specify the right DMEV units and ducting layout for your property, ensuring compliance with Building Regulations Part F and PAS 2030/2035.
Clean Installation
Our engineers install DMEV units in kitchens, bathrooms, and utility rooms with minimal disruption, typically completing a full installation in a single day.
Commissioning & Handover
All units are commissioned, airflow rates verified, and a full commissioning certificate issued. We walk you through operation and maintenance.
DMEV Often Funded as Part of a Wider Retrofit
DMEV ventilation is frequently included as a funded measure alongside insulation and heat pump installations under the major Scottish and UK government schemes.
ECO4 Scheme
DMEV ventilation can be funded under ECO4 as a required accompanying measure when insulation or heating upgrades are installed in eligible households.
Warm Homes Plan
The Scottish Government's Warm Homes Plan includes ventilation as a funded measure for eligible households receiving whole-house retrofit works.
Home Energy Scotland Grant
HES grants and interest-free loans can cover DMEV installation as part of a broader energy efficiency improvement package.