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
No matter the home or the budget, we offer Furnace / Heating and Air Conditioning installation, repair, and maintenance, as well as Ductwork and Indoor Air Quality services. If you are simply looking for a tune-up to get your current heating or cooling system back to factory standards or looking to increase the energy efficiency and comfort of your home, we’re here for you.
Overview
Hired 244 times
Serves Concord, CA
Background checked
License verified
9 employees
8 years in business
Business hours
This pro hasn't listed their business hours.
Payment methods
This pro accepts payments via Cash, Check, Credit card, PayPal, Square cash app, Venmo, and Zelle.
Top Pro status
Top Pros are among the highest-rated, most popular professionals on Thumbtack.
2025
2024
2023
Credentials
License verified
C20 – Warm-Air Heating, Ventilating And Air-Conditioning Contractor
License state: CA
Background checked
Passed by Daniel Anisimov on Jun 23, 2024.
Services offered
Work needed
System type
Split system
Packaged system
Other
Building height
Single-level
Two-story
Three-story
Projects and media
Projects and media
Reviews
Customers rated this pro highly for professionalism, responsiveness, and work quality.
Excellent 4.9
227 reviews
5
98%
4
1%
3
0%
2
0%
1
1%
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Read reviews that mention:
Julie C.
Mar 11, 2026
•
Hired on Thumbtack
I recently had my furnace and air conditioner replaced, and I couldn't be happier with the service. From the start, communication was excellent; Daniel was incredibly responsive and answered all my questions quickly.
The team arrived exactly on schedule and managed to finish the entire installation in a single day, just as promised. Their pricing was reasonable and honest, with no hidden fees or surprises at the end. Beyond their technical skills, the crew was very friendly and Daniel took the time to explain exactly how the new system works.
They also did a great job cleaning up, leaving no debris behind. If you’re looking for a professional, tidy, and punctual contractor, I highly recommend them!
Details: Furnace • No heat • Garage • Two-story building • House
Heating System Repair or Maintenance
Alex M.
Nov 4, 2025
•
Hired on Thumbtack
WOW. This was the best contractor experience I've had in years. Within minutes they diagnosed why my AC wasn't working and by the end of the day they got the right part and replaced it. All while being super communicative and kind.
I also really appreciated the transparency and willingness to teach me what was going on. I never felt like they were trying to upsell me. They genuinely cared about my family living in a clean allergen free space. Thanks for everything!
Great value! Fantastic to work with, I would highly recommend this company. The price beat everyone elses. If you are looking for an AC install use this company! I shopped for 3 months, the prices beat out everyone.
Details: Replace an existing A/C unit • Split system • I will purchase the A/C unit • Attic • Ground floor • 2,000 - 3,000 sq ft • Two stories • House
Central Air Conditioning Installation or Replacement
Mylene V.
May 27, 2025
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Hired on Thumbtack
Their team was able to see us quickly and gave us 3 different quotes for our needs, but provided us options. Oleg was my primary contact and he was very helpful in answering all my questions and educating me on what was best for us and our home. We replaced our old furnace and ac with a new dual fuel heat pump and ac, which I knew nothing about until Oleg told me. I did my own research and found that this was a great choice for us. Their prices are great and we were able to get our replacement quickly. They worked efficiently, even assisting me with setting up the new thermostat on my phone. I appreciate their team and recommend them if you ever need any HVAC needs.
Details: Replace an existing A/C unit • As recommended by the professional • I need the professional to purchase the unit • As recommended by the professional • Location recommended by the professional • 1,000 - 2,000 sq ft • One story • House
Central Air Conditioning Installation or Replacement
Michael m.
Nov 15, 2025
•
Hired on Thumbtack
Working with Danny and Oleg is always a pleasure. They respond quickly, and take care of the problem in a very efficient and professional manner. I really appreciate these guys, and highly recommend CALIHVAC to everyone with HVAC needs.
Details: Electricity • 1,000 - 2,000 sq ft • Two-story building • House
Heating System Installation or Replacement
FAQs
What should the customer know about your pricing (e.g., discounts, fees)?
The estimates are always free for installs.
No charge if you are not satisfied.
You will get a full refund if something goes wrong.
Our prices are known to you in advance.
What is your typical process for working with a new customer?
You can be sure you don’t spend on any weird charges.
What education and/or training do you have that relates to your work?
