Loading...
Loading...
MDB Same Day HVAC
Home Care & Success Stories
MDB Same Day HVAC
Cancel anytime
Cancel anytime
MDB Same Day HVAC proudly serves Walnut Creek, CA, as your go-to expert for furnace repair, HVAC installation or replacement, and overall HVAC system repair. With a name that promises prompt, same-day service, this company is dedicated to ensuring that your home or business stays comfortable year-round. MDB Same Day HVAC has built its reputation on a foundation of reliability, professionalism, and quality workmanship—a commitment reflected in every service call. Specializing in comprehensive HVAC solutions, this seasoned team understands that efficient, well-maintained heating and cooling systems are critical to your comfort and safety. Whe...
Cancel anytime
Sumanth S.
Mario! Thank you so much for your service. He was very fast, responsive and knowledgeable.
Review from Yelp
Nancy W.
Our AC stopped working in the 100+ heat so I called the Co that installed it less than 2 years ago. They could not come out for another day so, based on Yelp reviews, I called MDB. Mario got right back to me, and arrived within 2 hours! He diagnosed the issue, replaced the part and we are grateful!
Whew! The heat and smokey air are staying outside.
Thank you for your prompt and courteous service!
Review from Yelp
Chung L.
Mario is very good and knowledgeable. Price is very fair. Mario is very accommodating and is willing to work with me for any requests. He will explain every steps and is very patient. Highly recommended.
Review from Yelp
Dan T.
Mario was great. He came out and tried what other companies wouldn't. I was told by another company just to replace the unit. Mario said he recommended replacement as well, but he did add coolant fluid on one visit which worked for a month and he came again when the fan was stalling. It was a 24 year old unit, but he was genuinely trying to save me money and I truly appreciated it. Both visits he came after 6:00 PM and one visit was on a Sunday. After stalling my replacement we decided to get a new unit. Mario put his original 2 visits towards my purchase of a new unit. Which was 3K less than other quotes I received. On install day he and his team were in at 9:30 AM and out at 1:30 Pm with a new outside unit, unit in the attic and thermostat. It was a pleasure to work with Mario. He was honest and fair and answered or returned every single one of my calls and text messages in a reasonable time. If you want to business with a smaller company and be treated like you matter instead of just another one of the thousand people calling... call Mario. I can't say how much I appreciate his efforts.
Perry L.
My Brentwood rental property outside AC condenser stopped working. Mario was able to go there within an hour I talked to him. Diagnosed the problem which is more than the starter capacitor, explained and sent me pictures. The next day he fixed it by 2pm. My tenant only needed to suffer a couple of hours of 100 degree heat!
Mario is easy to work with, reasonable and he kept me informed the process through out.
Yes, I recommend him!!
Zonya J.
I can’t say enough positive about this service. I had had another person out earlier in the day who said that I would need a new air-conditioning unit, after replacing two smaller parts that he said did not fix the problem. Mario carefully assessed the problem, and it became clear that the first person who came out miss wired the new part that he installed. Causing that first part to malfunction. When ‘Marielle installed a replacement, it became clear that the air conditioning unit in fact did work. Then while my unit was old I did have the option of continuing repairing it. At 1/10 of the cost quoted by the first person. I was grateful for his professionalism, His confidence competence and his honesty. I will use him for any of my future HVAC needs.
Review from Yelp
Review from Yelp
Review from Thumbtack
Jan 30, 2026