This is a company operated with integrity and expertise. This was my experience and although we are not utilizing their services I recommend Michael and this team confidently. The only reason we are not proceeding is due to their assessment of the service requested by us being nonsensical. Could they have completed the task I requested, 100%. Could they have made a few bucks doing so, absolutely. Would they allow me to simply pay for something that would not provide our home and family with the benefit I assumed it would, absolutely not. That is why I am confident in their workmanship, approach and ethics. They were the 3rd HVAC company to do a site visit and discuss the project. They took the time to look at it from a variety of angles and made a coherent case that the Juice wouldn't be worth the Squeeze. Five stars and communicate with them confidently. read more

These guys were great. I had a mini split install I was doing myself. I got to the point where I did not have the tools needed. I contacted them and they came out the next day and finished up the installation Verified work done and tested everything on their end to ensure safety of the unit. I would highly recommend this company read more

Mike was awesome helped us save money and the worker that install the unit awesome worker. Love the guy. Price is very good.

I had an issue with the noise on the unit and they came back and put some dampeners. It turns out it was actually the register that was 50 years old clanking. But what I made my concern known they were quick to get on it and set a crew out to work on making it right Straight forward, no bullshit Good guys ! read more

Wow! There is not many companies out there that will help you without asking for money first. Michael shot me a text after I sent in an estimate and walked me through my issue after 9pm. Great genuine guy and business! Will definitely be a company I will utilize when needed. read more

Michael is awesome. Provides honest suggestions to fix your ac issues. He recommended a few checks while on the phone call with him before scheduling a repair appointment. My ac issue is resolved by his advice on the phone and did not require a technician visit. I would honestly call them for any future ac/heating repair/issues just from how he handled the phone call. read more

Thank you Mike for coming to the rescue and fixing the AC. My AC of course decides to blow out on a Friday night, during a heat wave, during a heat wave. He was able to get my AC working so I could enjoy the rest of my holiday weekend. Thank you Mike for your honesty and quick work. It is appreciated! read more

Very professional! Beyond expectations! Definitely contact them if needed. Recommend to everyone. It is a very honest and professional business. read more

So a little background: my 83 year old mom has his radiant heater system that she loves. Finding someone who has the knowledge to fix the boiler system has always been a challenge. Most of the companies don't know how to repair the system. Michael knew exactly what went wrong with the system and he knew the challenges of finding the right parts to get the system running. He kept me up to date on his design proposal and status of the project. Michael fixed the boiler in a few hours and had the heater running again. He even followed up the next day to make sure the heater was functional and if we were happy. The professionalism, timeliness and ability to troubleshoot a complex problem willl keep me going back to him Thank you Michael! read more

Della-Mora Heating and Air Conditioning - The Boiler - Heating & Air Conditioning/HVAC Near Me - Chula Vista, California

My A/C went out in the heat wave. I called a couple of companies in the area and got no responce including from the orignal contractor. Silvia was able to schedule Michael later that day he came out ontime and was able to get us up and running. This was a temperary fix because he needed aditional parts he needed to order. I was scheduled for aweek later between 12-2. Michael was right on time at 12 and completed to install additional parts. He advised me on how to keep my A/C running more efficiently in the future. I can't say enough about the Quality of service from Michael and his company! Oh the price was also reasonable. read more

Michael and his team did a fantastic job at my property. They were tasked with adding AC to an existing central heat system in my home. They were professional, courteous, knowledgeable and fast. The job took them a total of 2.5 days! I was thoroughly impressed, and their pricing just couldn't be beat. Not only did I feel that I got what I paid for, I feel that I got more! We had some questions about our system after it was installed, and Michael made it a point to come personally and elaborate *on a holiday*! Seriously blown away at how awesome the service was. Our home feels like a new home now with a stellar performing AC system. Thanks guys! read more

Della-Mora Heating and Air Conditioning - Heating & Air Conditioning/HVAC Near Me - Chula Vista, California

Mike was exceptional! From the initial consultation to the final installation, every step of the process was handled with professionalism and expertise. read more

Before finding Della-Mora I had two other services check out my system and I got two very dramatic causes and estimates. Not wanting to proceed with either one I took another look around and found Mike. He was extremely accommodating to my schedule and their staff was very friendly. He showed up and within 10 minutes he knew what the problem was and the estimate was mind bogglingly low . Just 45 minutes later he was done. Very professional and he knows his stuff. He didn't have that deer-in-the-headlights look on his face when he saw my 49-year old system like the other guys. He knew what he was doing. I will definitely call him again. Thanks Mike. read more

Dell-Mora Heating and Air were top notch. Mike basically fixed what another company messed up and installed a new AC unit. Literally went out of his way to fix the furnace when he didn't have to. Mike was honest, super knowledgeable and never tried to upsell me on anything. You can tell Mike truly cares about his business and profession. Thank you! read more

We called Della -Mora after our air conditioning unit shut off. Della-Mora was the second provider we had called out for the issue that temporarily fixed the problem but it returned a week later. Thanks to Michael's expertise he was able to diagnose the issue and fix the root problem that got the system back up and running. The price was reasonable and more than worth it for the service. I never felt like Della-Mora was trying to take advantage of us or try to upsell us on anything. I would recommend them to anyone having HVAC issue who want an honest assessment and quality work done for an honest price. read more

Thank you so much to Michael and Sylvia! After countless calls to other companies Della-Mora was the only company that was able to help me within 48 hours. Michael was professional, knowledgeable, and fixed our AC. He even drew out a demo of what was wrong with our AC unit so we could fully understand what was going on. He was constantly in touch with us which is not something you get these days from other companies. This is a budget friendly company that provides excellent work. I will definitely keep them on my AC maintenance! read more

Michael (owner of Della-Mora Heating and Air) installed my HVAC a few years ago and recently performed the periodic maintenance. He is very professional, honest and his work is top notch quality. Bonus is great pricing and he does not try to up-sale. Highly recommend Della-Mora Heating and Air all HVAC needs. Outstanding service. read more

Just wanted to update since my last review: After fixing my wall unit and talking with Mike we decided to have Della-Mora install a whole home heat pump system including duct work and I could not be happier! He's fantastic to work with and a real problem solver with navigating my 1950s home. I cannot recommend them enough! Honest, affordable and just an all around great experience. We have a couple more projects in the works and I'm excited to see it all completed! Thanks again Della-Mora! read more

Mike came in after a shady HVAC repair company came in and sabotaged our A/C and tried to upsell us for $12K after we called them simply for a leak. In less than 5 minutes of being in our home he not only fixed the issue caused by the other company he diagnosed and fixed the leak. Mike was in and out in less than 15 minutes!!! I highly recommend him he is a straight shooter and will do the most to keep money in your pocket! He even discounted our services due to the shadiness we had already encountered that day which he didn't have to do. read more

Love our new split heater/a/c unit in the church! Now know what we've been missing and I can even sleep in a little longer before worrying about taking the chill off our chapel. The new 3 ton unit is even better than expected. Thanks Michael-Nice Job! read more

Michael is great! He is very knowledgeable and extremely talented. He came out to provide a quote to repair the heater that is part of my heating, ventilation, and air conditioning (HVAC) system. I mentioned to him that in addition to the repair, I was interested in switching the gas system to an electric unit. He did an inspection and provided a quote. As he begun the work and started removing the old and damaged system he noticed that the home builder had cut corners and made mistakes. As the job progressed it became clear that it was a larger project than expected due to shoddy original work including some components that were mis-matched. I stated that I was comfortable with a change order and revised estimate because there was no way either of us could have known the extent of remediation that had to occur. Michael stated that he never increases his price after an estimate. He is refreshingly straightforward and honest. I provided a tip, and even now feel like I got a great deal from him. Further, he saved me money by reducing the size of the unit we were going to use after determining we could go with a slightly smaller unit which would still effectively heat/cool the home. This not only saved me money in the installation but will also reduce my electricity consumption and bill. Finally, he's a good guy. My dog, who I love, can be a yappy monster when people come and go that she does not know. She calms down once she sniffs the person. Every time Michael came and went through the room he would stop and let her sniff his hand, even when he was carrying items. This was a great experience and a great value. I would recommend him to anyone who is looking to have their HVAC system repaired or replaced. read more

The team at Della-Mora was on point. They can out to review the project, did the assessment and when they had everything needed the reached out and scheduled the install. Very professional and good communication. Thank you read more

AC wasn't blowing cold air and Michael came out the same day I reached out to him. He really knows his stuff. He was super professional and friendly. Price to fix was super reasonable. We will be calling Michael for all our future HVAC needs. read more

Michael was professional and knowledgeable. He listened to my concerns and explained the situation in detail. He didn't try to upsell me and didn't want me to throw money at the problem if it didn't fix the underlying problem. The cost was very reasonable. I will use Della-Mora again if needed. read more

Very happy with the service. We had a mini split that smelled like death and needed to be cleaned. Job turned out to be more complicated than originally anticipated but Mike went above and beyond and now the mini split runs like new with no smell. Will certainly call him the next time my HVAC needs attention. read more

They were very professional and clearly knew what they were talking about from the first call I had with them. Their quote was the lowest and of all the calls I had made to different companies, Michael was the most straight forward and direct as well as knowledgeable. I had to wait a couple of weeks for an opening in July for an opening. In and out in a couple of hours and price was as promised. AC is still going strong. They provided me a 1 year guarantee as well. Would use them again, and I highly recommend to anybody seeking AC services. read more

Michael was such a professional when it came to installing our condenser unit. He went above and beyond to turn off zoning and also installed or new Wi-Fi thermostat. His honesty throughout the process was a breath of fresh air. His prices were the best from several business that I called for what I needed. I would not hesitate to recommend Della-Mora Heating and A/C . Thanks again Michael. read more

Our air conditioner stopped working and Mike was available and came by right away. He got out unit working within minutes. Much appreciated as it was a hot day and he helped us quickly and professionally. We will reach out again in the future. read more

This is the second time I've used Della-Mora Heating and Air Conditioning, and once again, I'm thoroughly impressed. Michael and his team recently installed an AC unit in my home, and they did an outstanding job. They were professional, efficient, and knowledgeable, taking the time to explain the system in detail and ensuring I understood everything. The installation was completed in a timely manner, and they did a great job cleaning up afterward. I was also pleased with the competitive price they offered. Previously, Michael did a tune-up on my AC for my rental property, and I had a similarly positive experience--fast and efficient service. I highly recommend Della-Mora Heating and Air Conditioning for all your HVAC needs! read more

Mike came to my house , my husband and I been wanting to replace our HVAC he was professional. My husband was at work but then he was hitting on me . I became very uncomfortable and decided to take my business elsewhere. read more

We needed our dryer vent repaired and cleaned out and Michael was able to quickly identify the problem, clean everything out and reconfigure the vent to avoid future problems. He also checked our heater for possible gas leaks and was able to reassure us that everything was in good working order. Michael is very responsive, answered his texts and I will definitely hire him again. read more

Really knows his stuff and won't use scare tactics when giving you an estimate. Gives it to you straight! Overall, great service from his whole team! Highly recommended!!! read more

I was looking to install A/C in our house and had no idea what to expect. I got a couple of quotes and after inspections, received the same news. The heating units would also need to be replaced. Michael made the decision of who to go with very simple. He gave an honest appraisal of the situation and had a course of action ready. He was not an appraiser, he would actually be doing the work. He was very knowledgeable and professional, so I trusted his recommendations. After installation, my heating and air conditioning is the nicest thing in my house and it works wonderfully. If I could show it off, I would. We received excellent work at a great price. I would not hesitate to call him again. read more

Mike at Della-Mora knows his stuff. He gives very reasonable quotes and stands by them (no upselling). I've been using Mike for over 10 years and he always comes through. Della-Mora always responds promptly, and has always been able to troubleshoot and repair any problems quickly. I highly recommend Della-Mora Heating and Air Conditioning. read more

Fair, honest and most importantly, effective at his work. I hired him to look at a tankless water heater, and after doing his checks and finding out nothing wrong with the heater, he did take the extra step and fixed the probelm at hand. Too many time's I deal with people who show up charge and don't provide any value. But not here. Get the job done attitude is what I like the most. read more

Our wall heater in our rental needed a repair. Michael from Della Mora came out same day, evaluated our problem, and repaired it within 24 hours. Even had to leave to pick up parts and never charged more than he quoted us. Will use again and highly recommend read more

I have one issue with Mike: he can't clone himself. There aren't enough good people like him nor enough good techs and business owners. I bought my first home, a multi-unit property in June 2023. I was told the first year is always the most difficult and my house made sure to prove that point 100% correct. My first month in the house, we had a significant heat wave which led me to seek cooling for the units. I had two HVAC installers come by to look at the job. One guy couldn't come up with many good ideas and was hesitant on how to accomplish routing for my 4-unit property--granted, it's a 1921 home that was subdivided, so it's not as clean-cut as you would think. However, when Mike came by, he took a look around and could immediately envision what would be the most space and cost efficient. He quoted me at nearly half what the other company did and came up with solutions to save money. He got to work and faced numerous obstacles due to the fact that some of the remodeling done to the home was sloppy, yet he ensured the installation was solid and up to code. He's a man of his word--never once entertained raising the price even with the many headaches and frustrations my house caused him. He got everything installed in October and all was great until the January flood, which washed out a good bit of my landscaping and almost took out my HVAC units. Just a month later, my main sewer line backed up into my house, so Mike had to disconnect the units for the plumber to get to the main. Seeing the many issues I was having, he disconnected and reconnected the units for me at the best price you can get. All this to say, Mike is more than just the expert HVAC guy, he's a good friend that would give the shirt off his back. If you hire anyone else, you're doing yourself a disservice. read more

Michael came out to install an in-wall AC unit. His communication throughout was great and he arrived in the promised 2-hour window. He was extremely friendly and easy to work with. He clearly knows his stuff as he could tell right away that the existing sleeve was already tilted to the outside to allow for drainage and that additional shimming therefore wasn't necessary. He did the install remarkably fast and charged less than most people would have, I'm sure. He explained things as he went and gave me some additional useful tips about caulking around the new trim. All and all, I couldn't have been happier with the install, and I recommend him most highly as a result. Any future AC stuff that comes up within his service area, he'll be my guy going forward. Thanks Michael! read more

Excellent service. Extremely knowledgeable and honest. Very informative as well, talking through any potential issues and concerns. I highly recommend 100% read more

Very happy with his service, Michael thoroughly explained in simply and easy to understand words, the process of installing 4 split units on a 3000 sq ft hall. His experience and professionalism was evident after a few minutes of conversation with him, but, I was much more impressed with the way he made us (the clients) feel comfortable, I really liked the way he presented the whole process to us. He was also very careful and conscious to gradually walking us, step-by-step explaining through the progress or every stage of the installation process. read more