Heat Recovery Ventilation
Airtight Roof Insulation
Airtight Cavity Walls
Airtight Solid Walls
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Build Tight & Ventilate Right is the mantra of the Energy Savings Trust, so that's exactly what we offer. MVHR with airtight insulation. 
Positive Input VentilationPIV - Low Cost Whole House VentilationA Positive Input Ventilation (PIV) unit is a low cost alternative to MVHR and a more energy efficient option than traditional extract ventilation. By gently supplying fresh, filtered air into your home, taken from either your ventilated attic or an exterior grille, the PIV creates a positive indoor air pressure to 'push' old, contaminated, vapour laden air out of your property, at the same time eliminating cold draughts from trickle vents and other gaps in the building fabric. A PIV will normally resolve any damp and mold issues within weeks if not days providing a healthier, fresher indoor environment.
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The installation of a low energy positive input ventilation unit will completely replace the air in your home around 20 times a day, the recommended rate to maintain good air quality. A PIV unit tempers the fresh air supply by recovering unused warm air from the attic. During Winter months a small electric heater can be used to take the chill off the air supply. A solar energy collector is also now available to warm the incoming air supply and thereby reducing your overall heating demand.