I had a guy look at the heater and gave me a high quote for replacing the parts of the pool heater mechanism. I was suspicious and later called halton/peel gas and they sent someone out in 2 days who was very knowledgeable and told me the only fault was
1 mice ate up the connection wires
2 pressure swith was not functioning
fixed it quick and told me i will be billed for it.
The only thing that would make me hold half a star is that the payment options are not very user friendly.....cheque or cash on site which is quite far. I drove to orwell drive and paid cash but no receipt was given, the lady just signed the bill with initials.
I would definitely recommend them.