Sussex firm Rydon, which carried out a £8.6 million refurbishment of the exterior of Grenfell Tower last year, installing cladding and new windows, said its work "met all required building control, fire regulation, and health and safety standards".
Cladding on two tower blocks in Portsmouth was removed from the buildings today after tests found it to be a fire risk.
The city council sent samples from all of its high rises flats to the government following the Grenfell Tower disaster.
The fire service in Dorset & Wiltshire is to inspect fire safety at up to 250 high rise apartment blocks after the Grenfell Tower tragedy.
Several residents reported that a resident said the blaze started in his faulty fridge.
Local residents had warned it would take a "catastrophic event" before authorities took notice of their concerns about fire safety.