If you hire this pro, you’re covered by a money-back guarantee. Learn more
If you hire this pro, you’re covered by a money-back guarantee. Learn more
About
With over 11 years in business, I focus on doing the job right the first time. I never cut corners, whether I’m repairing your AC or heating system, installing or removing ducts and vents, or taking care of your thermostat.
Some companies might be cheaper, but I take the time to diagnose issues carefully, explain your options, and make sure the work is done safely and correctly. With a small team of three, you get personal attention and consistent quality on every visit.
If you’re looking for reliable HVAC service and want to be 100% happy with the results, I’d be glad to help.
Overview
Current Top Pro
Hired 56 times
Serves Los Angeles, CA
Background checked
3 employees
11 years in business
Business hours
This pro hasn't listed their business hours.
Payment methods
This pro accepts payments via Apple Pay, Cash, Check, Credit card, and Zelle.
Services offered
A/C services needed
Property type
House
Condo/Apartment
Townhouse
Business
Projects and media
Projects and media
Reviews
Customers rated this pro highly for professionalism, work quality, and responsiveness.
Very good 4.5
34 reviews
5
85%
4
3%
3
0%
2
3%
1
9%
Your trust means everything to us. Learn about our review guidelines.
Read reviews that mention:
Anna D.
Jun 20, 2026
•
Hired on Thumbtack
All I can say is…PHENOMENAL job! First they answered our inquiry so quickly. We had 5 of our split AC cleaned and the machines on the outside. We saw mold in some of them and needed cleaning ASAP. Our home smelled musty for the past week and I just had a strong suspicion it was the AC. Sure enough when I shined the light into the living room one, that’s what I saw. I went straight to Thumbtack and put out a job request and Twin’s Heating and AC replied right away! Onecimo came the day after and did a very thorough job, honest, and amazing job!
He looked at each one and got right into it!He was very knowledgeable about how we should upkeep and maintain our units. We he left, we ran our AC and it just smelled so clean and clear! We can finally be in our home with ease! We are very happy with the service and will definitely use them again for our AC cleaning maintenance! Thank you so much again!
Details: 3 or more • Need professional to recommend size • Home • Owner
Window, Wall, or Portable AC Repair or Maintenance
Laura K.
Jun 27, 2026
•
Hired on Thumbtack
Onecimo and I texted a few times and finally were able to make an appointment on Saturday morning. He texted me the night before and I appreciated his communication throughout. He arrived on time and proceeded to service my A/C unit which was dirty after never being serviced after 7 years. He took his time, was professional throughout the appointment and provided me pictures of his work. I would hire him again, I am happy with his work.
Details: 1 unit • Need professional to recommend size • Home • Owner
Window, Wall, or Portable AC Repair or Maintenance
Al S.
4 weeks ago
•
Hired on Thumbtack
Onecimo was on time for a window ac replacement. Very knowledgeable, did a great job and all clean and tidy when finished. Would definitely hire again! Thank you Onecimo!
Details: 1 unit • Multi-unit building • Property manager
Window, Wall, or Portable AC Repair or Maintenance
Jose C.
Jun 17, 2026
•
Hired on Thumbtack
I would re-hire this technician without hesitation for the following reasons: his quick response to my job posting, for his attempt to save my previous faulty mini split to the best of his ability, for the installation of a new mini split to my satisfaction, for his ongoing communication before and after the installation, and for the reasonable price of his labor. I am 100% satisfied with this technician.
Details: 1 unit • 0.5 Tons • Home • Owner
Window, Wall, or Portable AC Repair or Maintenance
Aracely C.
4 weeks ago
•
Hired on Thumbtack
Very nice tech. He was super helpful and honest about our unit. Did not overcharge and gave good recommendations plus was friendly with our dog
Details: Ground floor • Condo or apartment • Owner
