Jesus Solano the technician came in the next day on time. He quickly diagnosed the issue and fixed it on the spot. He came prepared with all the necessary equipment to repair an old Williams in wall furnace. Great communication and all around awesome service. I've saved his number on my phone to make sure I don't waste my time with another repair company. read more

We have three children and no hot water for baths tonight because Paul dragged things out all day and then started dodging calls. This is not a small inconvenience. It's a basic necessity, and it's unacceptable to leave a family hanging like this, AGAIN. We've previously gone without heat for the same exact reason: hours of excuses, no clear schedule, no follow through. The ONLY reason we kept calling was because they installed the system and know it better than anyone, and they've made it so unnecessarily complicated that most people don't even want to touch it. But, that doesn't give them a free pass to be disorganized and unreachable when something breaks. If you value reliability, communication, and having a basic utilities handled when you need them, look anywhere else. read more

Friday 7/31/26 AC not cooling. Called for service, ASM said would be there around 2 hours, three hours later I called they said unable to make it I asked if they could come on Saturday? No has to be next week they said. Rescheduled for next week the day of the appointment got A call saying their Tech called in sick and unable to make it. During this time there was A heat wave with temps in the 100 and the only reason I rescheduled because of my home warranty. I DO NOT RECOMMEND. read more

Highly recommend ASM Mechanical Services to everyone! Alfredo is professional, experienced and highly skilled. He was able to diagnose and repair our heating system very quickly. ASM Mechanical Services will be our go-to HVAC technicians from now on. read more

Alfredo was efficient and timely, showing up the next day during the holiday season. We were able to work out decent pricing - wasn't the lowest or highest quote I had received, but I feel it was a fair price, especially given how quickly he was able to come out and solve the issue. Overall, I was satisfied with how quickly he was able to resolve my mini-split issues and was knowledgeable of issues that came up during the process. I would recommend him and use his company again for future HVAC issues. read more

ASM mechanical amazing team Alfredo and Kevin was able to work out a great deal. reliable great fast and efficient workers I Will use again in the future Great communication. read more

I highly regret ever working with this company. Alfredo and his team installed an A/C and a heat pump for us two years ago. Back then he was very unresponsive and stood me up twice without ever showing up to scheduled appointments. After a negative Yelp review he gave me a good price and did our installation. Two years later I need to relocate the unit for a project and he has stood me up twice over a two week period already. Not even a phone call to notify me that he won't show up. Now my project is delayed and no other company will accept the work because they don't want to relocate a unit that they haven't installed originally. I regret working with ASM Mechanical so much that I'm considering buying a new unit just so I can get it serviced by someone else. Avoid them if you expect professionalism. read more

I highly recommend! Mauricio and Alfredo responded to my quote request right away and did a great job of pitching my business. Straight hustlers! They mentioned they were in the area and could come over, and I decided to take a chance with them. Our furnace broke on a Monday afternoon and we had a completely new system by Tuesday night. Alfredo and Mauricio explained what they could do and out of safety reasons they recommended we completely overhaul our system with a new furnace and air ducts. I didn't feel like they were trying to upsell us to make unnecessary repairs so they could earn more money. In fact, they were very clear I could spend $$ to patch the problem temporarily, but eventually we would have to spend $$$$ for a proper replacement anyway. Our furnace was super old and the ducts were leaking, on top of that not properly installed by the previous owner. Luis did most of the heavy lifting and I've never seen a man work so hard in my life. We had to encourage him to take a break and offered him food and coffee! I would have been fine if they had to come back and finish the job on day two but Luis was insistent on powering through. He did a very meticulous and clean install. The price they quoted us was reasonable compared to other vendors I spoke with. We will probably call these guys again when we need to replace our hot water heater. read more

ASM Mechanical Services - Our new furnace, installed by Luis - Heating & Air Conditioning/HVAC Near Me

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Save your money and hire someone that actually knows what they are doing , called these guys towards the end of the summer last year , compressor was freezing up on my ac unit , tech was lazy and instead of figuring out why the unit was low on refrigerant he filled up the unit with refrigerant charged me and left. his words were "it's a new system so sometimes they come charged with less" WRONG I expressed concerns with the unit having a leak and he wasn't having it, here we are back in summer and compressor is icing up again , please do yourselves a favor and hire someone else !! read more

Heater went out day before Christmas eve. Called multiple places and Alfredo (ASM owner) was the only one to promptly answer and offered help. I live in SF, and no one would come out to the city last minute but Alfredo showed up in about two hours. Only guy in a while Ive seen shoe protector to not get our house dirty. That alone deserves 5 stars! He found a safety switch was the cause and replaced it. Price was very reasonable, and he is very professional. A week later heater went out again (it be like that sometimes), and I texted him first thing. He replied very fast and came to the house by 9am. This time, he found the old wiring had to be redone. He fixed it fairly quickly, AND cleaned up after. I was expecting a separate charge, BUT, he said, he'll cover it no charge. I was very shocked, in a VERY good way. Needless to say, we need more professionals like him. He is honest, has pride in what he does (made evident by his cleanliness), and really knows his stuff. Hope his business grows, and i know who to call if I ever need HVAC service again read more

Beware of Alfredo. Took deposit. Could not do the work. Now finding excuses to return deposit. Reported him to the state board. A big Crook!

Poor service experience. These guys missed an appointment twice (even the rescheduled one). Then when Alfredo showed up, he charged me $100 to tell me the pressure switch was broken and needed to be replaced. He sounded like he was going to come back after talking with the warranty company. After his conversation with the warranty company, they denied our claim claiming our system had not undergone maintenance. I think these guys are in cahoots and overcharge customers for a 30 min visit. read more

Never use this company. They will be ready to come and look at your work , will show up in 15-20 min and will not perform good work. Very rude. They are just trying to collect 5 stars from people to bump up their star rating read more

Horrible service. This man broke are AC unit. He would should up one to two hours from the time expected. He came to try and "fix" our unit weeks after he broke it. It worked for 24 hours and then never heard from him again after we tried calling him to come back to fix it or replace it. I should of read the reviews on his service before calling him. WORST PERSON TO HAVE SERVICE YOUR AC UNIT. Very unprofessional. Do not give him your business. read more

ASM Mechanical Services - Unit was punctured - Heating & Air Conditioning/HVAC Near Me

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Needed a new thermostat installed mid January. I was able to schedule an appointment fairly quick and ASM arrived on time. They were friendly, knowledgeable and charged the price they quoted. A little more than a month later, I'm happy to report my thermostat is functioning well! :) read more

I had to clarify that I called for a preventative maintenance/ tune up of a furnace not because they were having any issues. He showed up and told me to change the air filters, flipped the switch and said "it's working" -not exactly worth $75. He did point out some issues with the installation and that the unit was old - I'm not sure what I was expecting, a bit more .. I don't know... maintenance (?). Overall nice, responsive but nothing I didn't already know. read more

Got them through our home warranty company (which is a total sham and I would recommend nobody get these home warranties, but thats a different topic) and Alfredo showed by exactly in the window he said he can come. He himself reached out to me proactively to make the appointment. Was able to fix and HVAC compressor not turning on within 1 hour. I'm definitely calling him next time we have a HVAC issue. read more

Alfredo came out to look at our broken furnace on Saturday morning of a holiday weekend and had it fixed Monday morning. It doesn't get any better than that! Highly recommend. read more

At around 9:00 last night, I discovered my furnace was not working. I put out a Yelp estimate request, and Alfredo, the ASM owner, offered me an appointment for 8:00 this morning ... then he asked whether I needed him to fix it that night! I said no, that I could wait overnight. Upon arrival this morning, Alfredo was professional, fast, and thorough. The service fee to come out and look at it was only $75.00. My furnace's blower wheel was out, and when he first replaced it with one that is too powerful for my small space, he started over, saying he didn't want me to have to deal with the massive gust and loud noise. The second one was perfect. I loved that they had what they needed on hand to fix the issue. Even if you're in San Francisco like I am, call ASM. They're wonderful! read more

Alfredo was so awesome! Our air conditioner broke Saturday and I requested repairs from a few different service providers late Saturday evening. He was among the three who responded right away. He was fully booked Sunday, but got to us early this Monday morning. He hooked up some gadgets to our ac which must've pin pointed the issue. From the time he rung our doorbell from the time he drove off, was less than an hour. I'm sitting under my vent enjoying cool air. Thank you so much Alfredo! It's going to be 104 degrees today. Other things to note: Alfredo even stayed long enough to make sure the vents started blowing cool air, it was assuring when he said, I won't leave until I'm for sure the ac is fixed. He is guaranteeing anything he repaired today for the next 90 days. Pricing: Better or comparable to everyone else in our area. Save some time and choose ASM! read more

Alfredo saved the day. Called him at 5:45 with a busted air conditioner. He was there before 7 and had everything fixed before 7:30. It seems like nothing about air conditioning is cheap, but he replaced 3 parts for $450, which on a hot day, at the very end of the work day, seemed very reasonable. He came masked up, and everything was done from a safe distance. read more

ASM is a little bit pricey, but they're timely friendly and professional. They completed the job In a timely fashion and left the property clean, I would recommend them Tim Clancy read more

heating system fast efficient reliable mr. alfredo came to me in the wet storm and provided me with excellent service. i greatly appreciate his diligence care and concern. thank you mr alfredo read more

AC blower needed to br replaced. Although I reached out to them on a holiday in the middle of a rare and harsh heat wave, they came very fast and replaced the blower. I really appreciate the service and responsiveness of them and will always consider them as a trustable go to place in future. read more

We decided to shop around to replace our old heating system in May 2021... After contacting ASM Mechanical services over the weekend, they showed up Monday morning at the promised appointment time to evaluate our needs. It took me 15 minutes to hire ASM Mechanical! to replace and relocate a 60 year old furnace including replacement of old ductworks in the garage. I received project scope and cost estimation document in the afternoon on the same day. Before the work begun we had short meeting with Tech crew to go over the details. They did an amazing! job for full system/ductworks replacement and completed to the ask! - in two and half days from the start. I highly recommend ASM Mechanical services! Thank you the Tech crew, Mauricio and Alfredo! read more

ASM Mechanical Services - Heating & Air Conditioning/HVAC Near Me

Amazing service and reasonable prices. Alfredo stayed at our house 3 times and once very late one night helping us get the system running. In the end we did need a new furnace, but they tried everything before that to get it going. The prices for this large repair were very reasonable. Highly recommend! read more

We called at 8:30 in the morning after suffering through the night with our house at 90 degrees. They arrived in 40 mins. Their service fee was less than everyone else we called and they were able to fix our AC without mins at an affordable price. Alfredo was incredibly kind. Would highly recommend. read more

I highly recommend this company! They are dedicated and super responsive. My quote came immediately after I spoke with Mauricio who answered my call after business hours. Our furnace was broken and needed to be replaced and set up properly. Mauricio had someone there the next day. They were professional and solved the problem and took our old furnace and any other debris away. Best experience with a service provider like this.... maybe ever. Even the payment and quote process was seamless and simple. Big Thanks! read more

We were without heat in our business as well as our ajoining business neighbors. ASM came out same day and was able to supply us with new themostats and serviced both our heater units. They did an awesome job at a very reasonable rate and with emergency speed service. read more

My fancy thermostat stopped working. While my Heater/furnace were still operable, the old fancy wireless system could not be repaired. Great communication, through Yelp messages, text and yes Old Fashioned Voice Phone call. Fair price. Fast turn around. I had called several others before all who were complicated and others tried to up sell a new heating system This was the best company for clear communication, offering me a few options and recommending the best long term repair for my budget. He let me know that the choice I made which had a lower parts cost, would require more labor, (a second guy) so that part would cost less and the overall cost was less. I appreciated the clarity. And respected his work ethic and professionalism. Excellent workmanship, efficient, clear and a good value. Call Alfredo if you're ready to get the job done. read more

in a few words. unrealiable, unresponsive, untrustworthy. left me to deal with triple digit weather. read more

Arrived quickly when we were in need. Fixed our issue that same day and had all the tools and parts necessary. Had a fair quote and was flexible on payment options. Straightforward, knowledgeable and efficient. He even evaluated other issues with our system and suggested future fixes. We will call him next time. read more

This was the 10th HVAC service I called & the only able to service my unit today. The tech answered the phone prior to 8am, and was immediately on the way with same day service. Tech got here within 2hrs of my request, quickly diagnosed my issue (even with my misdirected suggestions) and resolved it immediately, explaining what he was doing at each step to make sure I was comfortable with his approach. Total time 30min, fair price, and professional service. Mask worn by the tech & he was very respectful of my home. Will use these folks again with no hesitation. read more

What a great service! I called one other heater place before ASM and they said they could not come for 2 weeks and they didn't think anyone else would either. ASM came within the same day I messaged! He quickly found the problem and it was fixed within 90 minutes! I would hire ASM again anytime! read more

My heater broke down during a cold spell and these folks came out the same day to assess the issue. Two parts required replacement which they ordered right away and installed quickly. I appreciate their fast service! It wasn't cheap but I needed my heat. read more

I needed an HVAC person last Saturday to service a non working furnace. Alfredo was the first "responder" to the lists of about 6 service companies. He was able to come earlier than expected , wearing a mask and has handy shoe booties, diagnosed, explain what is wrong, gave an estimate of the job. As we needed to get this job right away, we agreed on the reasonable price, he was able to finish and test the heater and had warranty for his work. He was done in 2 hours. Highly recommend Alfredo with ASM Mechanical. read more

after requesting for quote with clear instructions on what i need done and gave his cost. I agreed to have Alfredo do an installation. This fool came in and ask that the price given was just for showing up. He didn't put this in the agreed quote. So his stupidity wasted our time. i immediately told him to get his ass out of my property. read more

HORRIBLE. My 83 yr old Aunt had her AC go out and her Home Warranty sent ACM Mechanical out. He showed up at 8pm and said it was not getting power. She could not understand him and called me because he wanted payment and she thought he said he could not fix it. She asked him to speak to me and he refused so I told her not to pay him. He drove off. I called him today so speak to him and get him paid so he can get the info to the Home Warranty. At first he would not answer my calls and hung up on the Home Warranty Co. Finally he did answer and said he can fix it but in 2 weeks. I feel this is out of spite. He is not a nice man. I am now calling the home warranty company to get another company out to hopefully fix it. I can't believe he would let an 83 yr old Widow suffer in this heat especially when it is suppose to be over 100 all next week. read more

Had a broken heater for SilverLake Ramen which requires a roof top access to fix. Response time was extremely quick and so was service! Definitely would recommend for homes and business regarding repairs. read more

ASM responded quickly and serviced our gravity furnace in the middle of winter when we sorely needed heat. I highly recommend them.