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"Installation went well. I chose by "YELP" referrals . I feel I over paid out of sheer desperation. A/C was shot . The salesman was a bit cocky, arrogant. I needed it & I got it fast. Salesman claims of an $ 1800. rebate were B.S.. I was apparently taken off the final price. Very SLY !!! Still they are highly recommended.on YELP................................... P.S. Installer was a Pro . Thus I feel secure in that area."

"The worker worked efficiently and explained what he was doing. He even installed the flexible duct because he thought it would be better for my dryer than cleaning and reusing the old kind I had for too many years.  And I was surprised and pleased to have a same day appointment. I recommend Mr Duct to everybody."

"The gas company had to inspect the lines in my house. They looked at the Heater in the basement which is in a Utility room. AllTemp had installed the 90% HE heater and AC about a year ago. The gas company said the intake should run outside or to a more open part of the basement. 
The old heater was also vented incorrectly. I had no idea that both the old and new heaters did not have proper intake venting. Why should I? It is not my line of work. I believe AllTemp should have seem the problem when giving me the quote last year and corrected the problem when they installed the new system. AllTemp wants to charge me to do something that should have been done already and included in the initial installation.
I am trying to write a fair review. Their pricing was good for the heater and ac, they installed it quickly without making a mess, the sales person was professional. They install quality systems and do not try to sell you things you don't need. Example the sales person said I did not need a new filter box, all other vendors I got quotes from tried to push a new filtration system on me. 
So if you are looking at the sales process, installation, and price of the new AC and Heater they did a good job with the exception of not fixing the intake venting problem.
I just would like them to fix the intake vent situation. It is something they should have included with the installation.

***UPDATE****
All Temp agreed to fix the venting issue for no charge. Their technician came up with a clever venting solution and came back on 10/16 to implement it.  Took him 30 min and he was done.

Thanks All Temp for making this right."

"Estimate was great compared to several others. Was honest and upfront about costs. A/C working like so much better now after their suggestions. Few issues while installing but they were very apologetic and went above and beyond to fix them."

"Cahill installed my new furnaces in a professional manner and the units work very well. The annual service is thorough and complete. I am confident that the units are well maintained and not just given a cursory service. Installation of the ducts was done quickly and professionally and their advice helped me make the right decisions. They showed up to perform the work at the agreed time and completed the work efficiently. I didn't have to allocate a block of hours during which they might show up -- as with most service companies. I'm very pleased with this company."

"I called them for central A/C repair and furnace servicing, and they exceeded my expectations. The team quickly diagnosed the issues and fixed everything without delay. Their professionalism and attention to detail really stood out. Highly recommended for any HVAC needs."

"Toptec did a great job taking care of our HVAC issues"

"I have been working with Rick * C R Mechanical ) for the past 5 years I live in east coast and have a rental home in IL , have used this company for regular maintenance So far we got our Aging HVAC and Water heater replaced thru RIck , and all was a pleasant experience .Very professional I would highly Recommend C R Mechanical for any of the Above related work Thanks Anil"

"I needed to replace my 19 year old AC unit. ARS came out yesterday, quoted and installed today. Installers were neat and efficient."

"I hired Full Efficiency to do the spring tune up for our central AC. Carlos arrived on time, wearing PPE, got to work right away with the spring tune up, and cleaned up after himself when he completed the job. He is a very professional, friendly man. We plan to have him back in the fall to prepare our furnace for the cold weather months!"