I recently had a furnace and heatpump installed by Moore & Russel and the whole process was simply awful. It took two months and five technician visits to get it working properly (simple fix that I had to help them sort out). They no-showed on an appointment and then showed up on a Sunday when they weren't scheduled. It was a nightmare to deal with them and I couldn't even elevate it to the manager level as the General Manager ignores e-mails and refuses to talk to customers handing over $20,000 to them. I had to step in at every stage of the install, including making sure they got a gas permit after they did the work with no permit. If feel like I owe then a bill for my project management work! They even wanted to wrap the electrical wiring around the outside of my house which would have been eyesore so I had to find an easy and direct route through my attic for them. Communication was awful once the contract was signed and general workmanship was poor unless I kept a watchful eye on them.
In addition, they kept pressuring me to pay the bill even though the system was never properly operational. They wouldn't even provide me with an invoice when I asked. I finally got an invoice after requesting it 4 times over two months and being told that they don't issue invoices (who doesn't issue invoices?). I'm still waiting for the commissioning report which will be holding up my rebate.
I recommend just about anybody else if you want a quick install with good workmanship.