I Recommend Gas Fix 100% for Pool Heater Service and Install.
They breathed life into my aging Jandy II four times over the years. Heater was installed when we bought the house; got over 15 years life from it with the help of Gas Fix (I'm told you should expect 7-8 years out of heater these days). It finally failed with a major water leak and was un-repairable.
I shopped around and settled on a Raypak. Gas Fix pricing for the heater was competitive and their installation costs were reasonable. [Remember gas heater installation and service is heavily regulated by TSSA. All work must be done by registered fitters]
I called Wednesday to book the install. They were on site Friday at 8:30 promptly. Heater was installed, tested and started without fuss or issue. We took care of the paperwork and they were gone by 10:30.
Stellar job, guys!