superb customer service! Trevor broke everything down and answered all questions I had leaving any kinda doubt out there window. The quality of service was phenomenal as well. highly recommend! and if at all possible request Trevor you won't be disappointed. read more

Trevor & Luis did a wonderful job explaining and being very thorough on what exactly the issue was with our AC unit. I really appreciated them coming out while it's 80* out here in Spring Valley and we're still able to provide great service with a smile. Truly a wonderful duo with a passion for their job that you can see through the work service they provide. The customer services was definitely a five star experience. Thank you Trevor & Luis (: read more

Trevor came out to do a inspection on my unit. What I sincerely liked about Trevor is you can tell he is passionate about doing everything the right way and not being lazy. He noticed things that were not correct on the initial installation and handled it on the spot. There was trash left in the attic the original crew left behind. Again, Trevor not being lazy picked up the trash and apologized. I will be requesting Trevor to be the man that works on my unit. Trevor obviously cares about the quality of his and the company's work, he is not their just to collect a paycheck. Thank you Trevor and thank you Allegiance for hiring a great employee. read more

Replaced the HVAC unit about a year ago in the house I'm renting, they were great and knowledgeable! Very friendly! Just had an inspection to make sure things were running right even though it was only a year old the technician did a thorough inspection, and everything running smoothly! Thanks Allegiance! read more

Amazing service. Professional, courteous and efficient. Trevor & Luis were incredible. Excellent employees

Extremely courteous, informative and tidy technicians, Trevor and Luis were very knowledgeable about their task. They explained everything that was being done and totally cleaned up any mess that was made. I would recommend them to everyone! read more

As a resident at an apartment complex, I had a great experience with Allegiance. Trevor and Luis replaced my air conditioning unit quickly. Both went above and beyond to make sure everything was done right. Trevor and Luis are very hardworking and efficient. They were professional, respectful, and took extra care to protect my flooring and belongings throughout the process. They also cleaned up thoroughly once the job was done. I'm extremely satisfied with both their work and my new unit. read more

Very friendly and thorough work. Our hvac closet was filthy and now looks great. Trevor is a great technician. Would highly recommend Allegiance. read more

I had HVAC replaced today by Trevor, Luis, and Austin from Allegiance Heating and Air. I highly recommend this company and team. They are very professional and take great pride in their work. I appreciate all they did. ​ read more

I highly recommend Allegiance. I've lived in Santee 36 years and I've tried many heating and air-conditioning companies. Allegiance was the first one company that didn't try to overcharge me and went above and beyond what I even asked Lawrence was amazing. Highly recommend Allegiance heading an air-conditioning. I will never use anyone else but them. Lawrence found the problem immediately when two other companies had no clue. read more

Since I moved to La Mesa 4 1/2 years ago, they have been my go to company for heating and air. I have had to replace 2 units due to age as well as a attic fan. They have been responsive, professional and competitively priced. Highly recommended from me. read more

Allegiance replaced our heating and cooling system with a heat pump during a stressful event in our home. Lawrence was calming knowledgeable and focused in our initial discussion. Both my husband and I were amazed at how accommodating Lawrence and his team were. They were respectful, hard working and thorough in the clean up. We are so grateful this was our experience. No one ever wakes up and says, "oh I want to replace a major appliance today". read more

I'm tired of companies advertising that they work on or repair mini-splits and then decline to provide a bid and/or do the work. My time was wasted on your response. Please stop false advertising and just say you want to sell new systems because your profit margin is higher and stop wasting customer's time. If you aren't confident in your skills because you think there is a risk in your work that could make you liable, then maybe your techs need more training. I appreciate the cordiality, but my time is important to me. read more

I thought our AC unit failed. Had a company out for a tune up about two years ago, which didn't do much. They never checked the condensation drip line (which I didn't know anything about). I thought I was going to have to replace the system. Laurence from Allegiance came out and quickly identified the condensation line was completely clogged. He replaced the pipe, checked all aspects of the unit, and now we have cold air again. Super friendly, completed everything in about an hour, and explained everything as he did it. Now I know how to do my part to maintain the system. Nothing but great things to say about this company. Thank you, Allegiance! read more

Garbage. First off, They sold the previous owner a 2 ton unit, when it should've been a 2.5 ton, and they didn't remove the old air handler from the attic. The old unit is still there and wasn't removed. Thanks for that, I'll take care of it! It is only a max 8-10 degree split and takes 4 hours to heat from 68 to 70. 4 hours to cool from 78 to 76. No insulation issues in my house. Anyone in the HVAC industry knows that's laughable. I bought the house in Feb 2024 after they had just installed a brand new condenser and air handler 410a in December 2023, the compressor for months now sounds like a jet engine when it is on and running, (on heat or cold) and I'm getting complaints from the HOA and neighbors now. Thanks for that. No HERS test or permit was required so it was half assed for sure. I called them 6 months ago while it was still under warranty, to come out and take a look at the system, (as I work in the industry and have for 25 year), and they told me its not efficient because my ducting is not insulated, that's why I'm getting a 8-10 degree split. Great....... That should have been noticed by the sales person who sold the previous owner this system. Because it wouldn't work efficiently unless they added that cost/ to install insulation, but they cut corners for some reason?? Even the technicians who came out 6 months ago agreed with me. Why wouldn't you insulate the duct with the install price? Maybe you want your systems to work inefficiently? Lastly, the funniest thing, is that I received a call from them right after my year warranty expired asking me if I was interested in a preventative maintenance on my unit and they wanted to charge me for it. No thanks, I can change the filter, clean the coils and add tabs in the condensate pan, etc.. all good thanks though. Luckily I know PacRim and other big HVAC companies that have been doing quality work for me for years, so I have people to correct this issue properly and I trust them to do so. I suggest that allegiance do things correctly the first time next time so this doesn't happen again. Unfortunately when I bought the house, it had a brand new HVAC system installed negligently read more

A recent HVAC tune-up with Allegiance Heating & AC provided satisfactory service. Juan was professional, courteous, and explained each step of the tune-up process clearly. A thorough inspection of the system was performed, and the filters were replaced. Allegiance is recommended for anyone looking for reliable and professional HVAC maintenance. read more

Update to my previous review. Kassie @ Allegiance Heating & Air Conditioning reached out to me today and apologized for the previous experience and offered to make it right by refunding the service fee previously charged. She was a pleasure to work with during my original scheduling and now with this peace offering. As I said in my previous review, this company is highly recommended and Kassie and the technician did everything they could to correct things that were previously done incomplete. I applaud them for their continued efforts and the follow-up on this review. Thank you and I believe their actions in response will continue to make Allegiance thrive in the future. read more

See all

I love this company! I had my annual tune-up done today at my rental and my tech was very thorough and actually found a small condensation leak in my the AC outake pipe inside of my condo. So he re taped the entire pipe so it is waterproof and safe!! His went above and beyond...a "10" service call... best tech I've ever worked with! THANK YOU Ryan! read more

Could not be more impressed by this AC company!!! After getting an outrageous quote to replace our AC and furnace and terrible service from another company, a friend recommended Allegiance. They came out the next day and walked us through exactly what needed to be done. The workmanship and service was stellar. We would definitely recommend to anyone! read more

But after they came out to give me a quote for a new unit, pre-pandemic it was 3-5k, and then post pandemic they want 11-20k. The sales guy kept complimenting me and I thought whoa he's gonna give me a good deal, but, not so much, he just wanted my arm and my leg. We'll have to close our accounts with this company! read more

Once again, impressed by the professionalism, knowledge, and respect from this company. Eddie came out to do a tune up on our system to get us summer ready. We were having some minor electrical issues with our thermostat, which is was able to figure out and explain to me what happened. He wrapped up with the scheduled tune up. Super grateful he went beyond the scope of work to get that thermostat working again and do what was scheduled without making it feel like a rush job. Thanks for all you do! read more

Unfortunately, our 30 year old AC had a leak and flooded our attic and created water damage in our bathroom ceiling. Due to the age and state of our AC, it needed to be replaced. I'm such an AC princess and hate the heat, so the thought of going any length of time without AC in the latest heat wave was a miserable thought. Allegiance expedited things so quickly, between a same day house call, next day financing, and a within 2 day install (we did end up having to wait an extra 2 days once they looked at the water damage to let it dry out before the install so no mold would grow). Michael, who came out for the house call, was super knowledgeable, extremely friendly and very personable. Eddie the install technician was so thorough and accommodating. We have a home with 5 pets and one is an escape artist. He and the other technician (I think his name was Brandon) were very on top of keeping the door shut when going in and out so we didn't lose any of our furry family members. He also, suggested moving our thermostat from the current location to more efficient and easier location for us to access. I don't think this was an extra fee, but it definitely took extra time for them having to relocate the thermostat. They put down fabric runners throughout the house so nothing was damaged or soiled and took my family pictures off the wall so they didn't get broken while moving equipment up and down from the attic. Also, a huge pat on their back for such hard work dealing with the layout of our home and the (pain in the rear) staircase design in our home, it's not easy to navigate with heavy equipment/furniture/etc. Oh and just a side note, the new AC - SO MUCH quieter and efficient now! Needless to say, even though no one is ever looking forward to having to spend money or time on unforeseen house problems, Allegiance Heating & Air Conditioning's team made it as painless as possible. I would, in a heartbeat, recommend them 10 out of 10! Thank you so much! read more

We were approached with an offer for a preseason tuneup. The tech that came did a very quick job that did nit include everything that had been offered. After discussion, our payment was refunded. I appreciated the business accepting responsibility. read more

I had to give them a star that they did not deserve. Terrible service as they can't get their business together. I rearranged my schedule for an appointment they never showed up to. You'd think giving a week notice for the appointment and a 4-Hour time slot, they would show up? They called the day prior and tried to force me to take an appointment which I could not. I need to be notified days in advance instead of the same day, since I work and have a busy schedule. I thought that when you make an appointment a week ahead of time that they would definitely show up but no calls, no show, no apologies, no nothing. I will never allow them in my home. read more

Sarah and her team are awesome. Responsive. Professional. Quality. If you want to be cool in the heat of summer and warm during the winter chills, call Allegiance. Tell Sarah that David sent you. read more

My new furnace and A/C work great, and boy am I happy with Allegiance! I used them for years to maintain the old furnace that was original to my house. Finally when it came time to replace the old heating unit and add an A/C for cooling, I went with Allegiance for that too. I did shop around a bit, but found their pricing to be right in line with the other reputable companies. And they have given me such great service over the years, that I felt totally confident making a major purchase with them. Their techs have always been prompt, clean, respectful, and clearly knowledgeable. The office staff is friendly, and it's not hard to get somebody on the phone. They weren't at all pushy about making the sale, and the actual install was very professionally done in just one day. Their crew leader provided excellent communication and coordination with me throughout, and there was minimal disruption to my home. I really appreciated that they listened to my concerns and accommodated everything possible. Be aware that they don't do any drywall or painting that may be needed (we just did some minimal paint around our vents), so plan to take care of that yourself. But everything else is completely handled. These are really nice people, providing a quality product and excellent service. They were very concerned that everything be properly certified and permitted, so I won't have any issues with that down the line. I hadn't thought about it, so I appreciated that they were on top of it. The installers tested that everything was working before they left, and then someone came out to the house several weeks later to do another test and make sure everything was working properly. Great standard of care, and excellent service all around. It was a major project for sure, but I couldn't be more pleased. read more

Bought my system and install from them! Great company with good service and fair prices. They are pretty busy so it's hard to get them on an emergency basis but overall highly recommended. read more

My experience with Allegiance has been nothing short of exceptional. Their professionalism, knowledge, and commitment to delivering top-notch service sets them apart from the rest. I wholeheartedly recommend them to anyone in need of air conditioning services. read more

Went to turn the A/C on last week and nothing happened! Frustrated... looked on Yelp to hopefully find a reputable A/C repair company. Didn't take long to zone in on Allegiance Heating & Air Conditioning's 5* Yelp rating; the great reviews; and women owned (which won me over)! I was fortunate to get Mike (tech), very professional. He provided a customer-friendly "on my way" call which is always appreciated. Arrived, evaluated the situation, and provided me with options! Upon my selection, Mike was able to leave, pick up the parts, return and replace!! Just like that Knowledgeable? YES! Efficient? YES! Professional? YES!! Mgmt, Mike is a great reflection of your staff. Acknowledge and reward such dedicated employees If you reside in the Santee area, do not hesitate and contact Allegiance Heating & Air Conditioning. You will not regret the call or the service! read more

Noticed water leaking out of our secondary line and called Allegiance. They replied promptly and scheduled a technician to visit us the next morning. Mike diagnosed the issue and explained all the options to me. I must compliment this young man's patience in explaining things to someone like me who did not know the surrender between a main line and a secondary line. I appreciate it very much. He did a great job draining our lines and cleaning up afterwards. Will definitely call this company again for all our future AC needs. read more

My first time using Allegiance for my yearly AC tune up service. Very friendly staff who answered the phone and the Tech. Was on time and very through in his work. Very reasonable pricing and did not try and sell me a bunch of "stuff" I needed done on my system. Definitely will use this company again. read more

Thank you Allegiance and their tech, Matt, that came out to service my a/c and fix my whole house fan! Appreciate thorough & knowledgeable Matt was! My house is ready for this summer heat! read more

This company is extremely professional. I was extremely frustrated dealing with two other companies who couldn't show up on time, answer their phones, or return messages so I turned to Facebook and got referred to this company. Lawrence came on time after texting to let me know he was on his way. The work was done clean and at a fair price. In and out in 2 hours. Pure professionalism. I own 3 businesses and hope that my business is perceived this way. read more

Allegiance Heating & Air Conditioning - Heating & Air Conditioning/HVAC Near Me - Santee, California

Allegiance Heating & Air is the best! The customer service is amazing, always responsive and reliable! They treat their clients as # 1 priority. read more

No reply to website appointment request and no show at requested time. I waited three days before posting this just in case they were backed up on Monday. Both my website message and my telephone call I have been ignored. read more

The first technician that came out to give us a estimate was really nice he called the office to confirm the price of the air conditioner would be around 10k for a mid sized unit, not knowing And not researching the prices I was already to go with it, but allegiance never returned or called me back to set this up, which for me turned out to be good, after reviewing and talking to others I found an awesome company who came out and back the next day and installed the unit which ended up costing me $3300.. 2.5 weeks and Allegiance still has not called. read more

Excellent work deserves appreciation, there are no two opinions about it. Kudos to Eduardo from Allegiance, he was the main technician that replaced the HVAC system in our apartment unit yesterday. Eduardo and the crew that assisted him were total professionals in the manner they performed their jobs and in the way the conducted themselves and represented Allegiance. I am very pleased with the overall service and the quality of work left behind. Thank you, Eduardo! read more

We used Allegiance to swap out an AC condenser unit. They were very responsive, the on-site tech was clean cut and professional, and they got the job done quickly without any issues or extra costs. Highly recommend!! read more

I just had a system tune-up for my heating system from Mike the service tech for Allegiance Heating and Air Inc. . I could not be happier about their service. The tech was knowledegable and efficient. This company is now my permanent "go to" for my heating and a/c needs. Bruce read more

So thankful I found Allegiance to do our duct replacement after a rodent infestation. Our estimator and point of contact was David Novelo and he was superior. He arrived on time for the estimate, provided a three-option estimate the same day, and started work within two days. The entire project was completed in one day by very competent workers. Everyone we dealt with was professional and courteous. I really recommend them for any ducting needs. read more