Jon and Kyle were very nice and showed up on-time.  The reason for my review is to let everyone know that this is more of an emergency based company and you will pay for that.  Our quote for replacing A/C coils and a fan motor was $3,700 (cheapest of the options) and while I didn't know the value of this service, I quickly found out from another referred contractor that the same service would only cost me about $1,700.  I would not recommend this company strictly for pricing reasons.

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Our AC units were over 22 years old, but had performed well over the years.
The furnaces were less reliable and tended to need some work each year.
The AC just needed some coolant, but I had requested an estimate for the new units prior to requesting the service on the AC.
In general, it is hard to say if spending $300 on recharging the AC would have lasted 2 months or 2 years. (We know it wouldn't last longer than 2 years based on history and the fact the AC had a slow leak)
Ron was the technician that came out and we discussed the options. 
In addition to just replacing the current units, we wanted to improve the air flow, including an addition over the garage.
We discussed the sizing of the units, SEER ratings,, etc.
He took the time to present a number of options, including minimizing the replacement parts and just repairing the furnace and fan units upstairs.
Once I made a choice of which option I wanted to go with, Ron made some calls and they began the installation work within a couple of hours.
They actually worked on the installations until around 9:30pm and then spent extra time working on some solutions to the air flow.
Changes to the air flow were made and we set up a follow-up service call for the following week to make any adjustments.
In the follow-up service call we reported that the air flow was dramatically improved in the Master bedroom area, but wasn't quite working as well in the other bedrooms.
Ron made some additional adjustments for us and currently the air temperature seems to be fairly close in all of the rooms.
When the heat of the summer gets here we will have a better idea of how well the rooms are balanced, but for now we are very happy with the work performed.
Ron and his associate were professional, focused, and helpful.
The only reason for the "B" rating on price is that without some else providing another estimate.....I can only base it off of the information gained from friends and the internet.  However, I believe the price to be very competitive.

Called them twice in the past month or so.  First time they told us we needed a new switch (decided to get second opinion).  Second time they ripped out a pre-installed filter, told us the people who installed it shouldn't have, and then started quoting prices for a new coil.  He admitted that he wasn't really sure what the problem was.  Used them last year for another issue and the experience was the same.  Each one of the Techs seemed rushed and "on the clock".  Understand they have other customers to service and/or they want to go home and be with their families, but they are rushed to the point of "This is what I think the problem is.  This is what it's going to cost.  Do you want to go through with the repair?  If so, I need to know in the next 10 seconds."  The last guy that came to our home was nice but was kind of scratching his head like, it's late, I'm too tired to figure this out, let me spout off a bunch of potential problems, you take your pick and call me in the morning.  Not to mention all of their services are WAY overpriced in my opinion.  When you compare them to other companies who provide better service!

Technician was very unprofessional and asked personal questions. He obviously was only there to up sale and his diagnosis was a new system. When I mentioned that another company added freon last year he asked if I wanted them to fix this problem. Very strange, I told him I wanted him to diagnose the problem. I paid the service fee but definitely will never call them again.

When the told me the blower motor was broken  and was VERY expensive (the words used by the technician no price quoted) I  explained the system was relatively new and that we had registered it so could he please check to see if it was in warranty.  He claims to have checked and that while it was in warranty, their replacement cost was based on the purchase price of a working motor.  He explained the cost to replace would be $849.26 and their $39.00 check up charge. This means it cost (with tax) $961.54 to replace a part in warranty.   Since it was 95 degrees in my house at 12:00 for a second day I bit the bullet and paid for the repair but as I reflect now I wished I hadn't.  This is a great example of a company taking advantange of a bad situation....found out later there is nothing extra in replacing a variable speed blower motor so their pricing a replacement base on the purchase cost of the part.  I guess I was just too hot to think straight so highway robber was easy for this company.
I was not smart in that I looked them up online and because I saw they advertised BBB and Angie's List I just called them.....never ever again.  I will ALWAYS start with Angie's List.   Too bad Angie's List can't make them pull their name off their home page.

We hired this OC Residential to repair our air conditioner during a weekend when we weren't able to contact our regular repair guy.
OC Residential sent out a tech who was just frighteningly incompetent.  His diagnosis was to replace an electrical part in the compressor (outside) and while he was working on it, my wife and I heard a loud bang from the thermostat inside the house.  This was followed by the acrid smell of something electrical burning.  When I notified him of this he stated that the A/C needed an additional part at hundreds of additional dollars. I replied that I wanted a second opinion and came back inside.
My regular repairman came out the next day and told me that the OC Residential tech had cross-connected the 110 volt line to the 24 volt line in the air conditioning system.  As a result, it blew out not only the thermostat, but the electrical circuit in the compressor and air handler in the attic.

Appointment setting, punctuality and professionalism was initially good.  I looked them up online and gave them a call.  They agreed to come out on the same day, in the afternoon on Saturday.  The service person showed up at the appointed time.  He was clean and well-dressed in a uniform and was very polite.  It mostly goes downhill after that.
I told him that the pilot light on my water heater wasn't staying on.  I let him know that I had looked up the symptoms online, and that most of the websites I'd viewed said it was my thermocouple.  It's a repair that is described as fairly inexpensive and easy to do yourself.  However, I was willing to pay the extra money to let a professional do it, and not monkey around with it myself.
He listened, nodded, and said he'd check it out.  I got the sense soon after that he was unsure of himself, or nervous.  After watching him try to light the pilot light several times, I pointed out to him that he hadn't moved the dial to "Pilot" and therefore wouldn't be able to light it until doing so.  He nodded, and tried again and was able to turn on the light.  Then he messed around with the temperature gauge on the unit, watching the light as he did so.  I didn't say anything, but I had a sense that he was looking to turn the gas on to fire up the heater.  After a couple minutes, he did look around, locate the gas control dial, and turn it on.
I told him that the light would stay on for an indeterminate length of time, and that he probably would not be able to wait long enough to witness it blow out.  He nodded and watched for a minute, then asked how old my unit was.  I told him it was about 6 or 7 years old.  He said that was pretty old.  He then said he'd go back to his truck and write up some options for me.
When he came back, he said, "okay, let's tell you how much it will cost to replace your water heater."  I said that I didn't want to replace my water heater.  I asked why he didn't think it was the thermocouple.  He said, oh, well, it might be your thermocouple, or it might be your gas valve, but there's no way to know.
I was a little dumbfounded, and asked how much it would be to replace a thermocouple.  He said it was around $300.  I'd just seen articles saying that the part cost $15, and the labor about 15 minutes.  The articles may have been a couple years old, so I'm sure it's a little pricier, but I doubt it hit $300.
Overall, it just bothered me that he seemed to not know what he's doing, that he did very little by way of diagnosis (or, at least, he didn't bother to explain any of it to me), and he immediately jumped to replacing the full unit, as his first "option." 
He did, however, choose not to charge me the $39 fee for the visit, which he could have done.  I probably would have argued with him if he had, but he didn't put me in that position.  The "C" rating is a reflection of the appointment-setting courtesy at the beginning, the punctuality, and the waiver of the fee at the end.  But the thing I needed--someone with expertise to diagnose the problem with my water heater, explain it to me, and present me with fair and reasonably-priced options--I didn't get.

late

They were on-time and earlier than expected because another customer decided to cancel. Lucky me. Now I wish I'd never called them back! If it wasn't so hot and other companies booked up, I would have waited. The technicians of OC Residential Services first tried to tell me it was the compressor...NOT. I already looked at the unit and knew it was the capacitor. I was expecting to pay around $275. This company charged me $500.12 for a $35 capacitor I could have gotten from Grainger ( I checked the pricing) and probably a $90 Booster Cap if that! $500.12 for 15 minutes of work and less than $150.00 in parts is a rip off! Trust me when I tell you they are NOT comparable. The price of every part was marked up by 400% or more!  If it wasn't over 100 degrees this weekend and I didn't have indoor pets, they would not have gotten my money! Had this happened during the week, I would have suffered though, watered down my dogs, kept cooling my tropical fish, purchased the parts the next day and done the work myself and saved hundreds!  OC Residential Services = Over Charge Residential Services! I do NOT recommend this company at all!

They showed up on time, and diagnosed the problem quickly - low freon in the system. They said it was due to a leak. Their solution was to replace the entire system, or to fill it with a special freon that would hopefully seal the leak. I chose the latter, because I know I can fix a flat tire by replacing the car. They told me that filling with the special freon would be $750.00. What they didn't know is that I worked for an AC Repair company while in college. I told them I'd wait to repair it and possibly call them back. I called someone else and paid $225.00 for the repair.

.They came out at 11O’clock at night to do this job.  They have people on call 24 hours and they came pretty quickly, 30 minutes after we called.  Their response time and service time is very good. I cannot say anything about their prices. But I liked their service. They are very friendly. This is the second time we are using them. Last time we called them was when the outside unit had no Freon. They came over and filled the Freon. I am not sure about the pricing.  They may be more expensive.  I do not know. Other than that everything else is perfect. As for professionalism they did everything on an iPod type of a thing with all their services on it. I will continue to use them in the future.  They also had a discounted programe where if you have used them once they will give you discount on further services from them.