To achieve a fair test result it is vital that the building envelope is complete. This includes external doors, all glazing plus frames sealed and cladding completed.

Any forms of loft hatches should be finished and ideally have a draft excluder

All light fixtures and socket fixtures to be fitted 

Window frames to be sealed between the external walls i.e. silcone/expanding foam

SVP pipes or any types of pipes exiting the envelope area should be well sealed

All plumbing installed and all traps/U bends to have water in

Skirting boards to be fixed and sealed

Also noted that chimneys should be checked before we arrive on site to make sure they are properly sealed and that any flues that have been installed are not leaking.

Please be aware that testing cannot take place in high wind conditions

Upon our visit we will temporay seal extractor fans and possibly trickle vents depending on when the dwelling was constructed.

It should be noted that to do the test we will require 240v or 110v power , if this is a problem please contact us before our visit.