Converted oil to gas for a duplex in Lansdale - turned it into two zones for separate meters. Davis was fast, professional, and great to deal with. Highly recommend.
Long version: researched 15 places, called about 8, had 4 estimates. Davis was the most professional. They explained everything as they were looking around, saying why we would need something and why it was the best choice (in types of model and pros and cons). When we disclosed that another place recommended model XXX system Davis immediately explained why that was overkill and due to the age of our property and pipes it would be costly in the long run. (Particles in the water from old pipes is unavoidable and it would clog the XXX system due to its configuration/setup/type.)
Apparently the XXX model rates at 96% efficiency but if something went wrong, the whole system would have to be replaced. And it was costly: $12,000. Davis recommended YYY model, that's rated at about 92% efficiency but it's more common, and parts can be easily replaced instead of the whole system, and at that same cost, can give us two zones instead of one. So that's what we decided to go with. One zone would have been $8,000.
During conversion, it turns out our chimney is already lined so they took $500 off the bill. Communication between the office and technicians weren't the best so they showed up thinking it was already zoned for two - they had to buy more pipes. I don't remember if we had to pay extra for that or not. They said it would take 2 days but ending up with 3 days... no big deal, since they tried their best to keep the hot water off for the minimum amount of time. They also drained and removed the oil tank; they clean up after themselves!
When it got cold recently we tried to turn the heat on for the first time (besides right after conversion for testing) and it didn't turn on; the second unit's heat turned on just fine. We called them, and they came out within the hour at no charge to fix it. Very professional and timely. It turns out it was the electrical line to the thermostat that's old and didn't work. You don't get professional and courteous service like that much anymore. I would highly recommend Davis to anyone who is looking to convert oil to gas.
Our oil bill was about $700-$900 every 3 weeks so I can't wait to see what this winter's bills will be!!! This thing will pay for itself in about 2-3 winters I think!
FINANCING: Davis does offer financing. 0% for 12 months was available for me AT THE TIME (don't know by the time you read this lol) but I used my credit card (I had 0% promotional APR for 18 months) so I was able to get the "cash discount" else it'd been a bit higher.
A couple people mentioned they called Davis and never got a response. My experience with them was very prompt and timely. I think it's because I got to them before their busy season. My conversion was done end of July/early August. They came out for an estimate the week after I called, sent the estimate over the next day, and worked with PECO for us and we scheduled the conversion less than 2 weeks after the estimate. YMMV if you call them August and on, but hey, it's their busy season. Btw we already had gas lines set up so we saved the PECO fees, about $1,200 I think. Not quite sure why previous owners switched from gas to oil... but we'll take the $1,200 saving haha.
(When I was doing research I didn't find much information for oil to gas conversions and which companies are best at this - so that's why I tried to write a detailed review so hopefully it'll help someone else out.) read more