How the Experts Score is calculatedEach factor is scored 0–100 on absolute terms (standing in the category can only raise it), then weighted; problems flagged in review highlights or a recent slide in ratings are subtracted:Satisfaction 55%88+48Reliability 24%83+20.1Value 14%89+12.6Replies to reviews 7%86+6.1Craft & service penalty85−1.5Experts Score= 85Grade A: A = 80+, B = 60–79, C = 40–59, D = 20–39. Needs 10+ reviews.85SCORETriCounty Services
Oxnard, CA · Grade ALetter from the Experts Score: A = 80+, B = 60–79, C = 40–59, D = 20–39, F = under 20. · #106Position by Experts Score among all companies we track in this category. of 131 HVAC contractors · 4.8★ from 422 Google reviews
Report card
Percentile vs other HVAC contractors (100 = best)Each factor is scored 0–100 on absolute terms (star average, share of 1–2★ reviews, price verdicts…); standing within the category can only raise it, never lower it.. Strongest: momentum and value; weakest: reliability.
Reviews for your job
Customers hired TriCounty Services for 8 kinds of job.
TriCounty Services for heating system maintenance
Clear ✕All 30 Google reviews tagged “Heating system maintenance”
The repairmen that did three separate calls were on time, reliable and did quality workmanship, very knowledgeable in their crafts.
Exceptional service on Oct. 2, 2025. Dakota was very knowledgeable, thorough and detailed regarding the current health of our A/C and heating equipment. Very professional.
Very thorough and considerate
Great company to work with! professional, and polite
Punctual, polite and professional with great results. The Rep, Martin, was great to work with.
Many thanks to TriCounty team and Giovanni in particular! My gas insert fireplace was repaired promptly and wonderfully so I now have heat!🙏
I-wave system also installed day after regular service, promptly on time and estimated service time was only 5 minutes longer than estimate,(probably because he took time to explain servicing to us!). Have used Tri-county for over 40 years, excellent service, always
The crew was efficent and very polite
I have had Tri-County Air for many years now. They were the original installer for my new furnace and my air conditioner system. During these years they changed name to Valley Air and I am now glad that they went back to the original company name 'TRI-County Aire'. All services done, with different technicians was…
Knowledgeable, polite service employee. Showed up on time. Provided excellent service.
Professional, good communication, efficient service.
TriCounty Services is always professional and courteous. Never a mess left behind to know they were here.
Diego was prompt and efficient. Tri County installed the system in 2008 and have helped keep it running smoothly throughout the years. Thank you!
Diego was very professional, friendly and thorough. I'm satisfied with the service.
Diego came today on time as usual and did yearly furnace service polite professional as always thanks for the call for appointment ready for winter your company is the best!
Very thorough examination & ongoing service
Giovanni is informative and professional. It’s always a pleasure to have him service our A/C and heating systems.
Great job, quality work, informative, and a little bit late, but overall great.
I have been doing business with Tri-County since 2012 and have been very satisfied. I highly recommend Tri-County for a/c and furnace needs.
Efficient, knowledgeable, and excellent customer service.
This was a service check on our a/c and heater, and nothing as yet has been repaired. But we were extremely impressed with the outstanding detailed observations made by Giovanni, our serviceman. We feel we are in very good hands with Tri-County Services. We don’t actually know enough yet to be able to attest to our…
Have used Tri-County Air for over 20 years and they have always been dependable, reliable and on time. Maintenance service this time was done by a new technician who was a very professional, polite young man (Giovanni). His assistant (or trainee? or trainer?) was likewise very professional and polite.
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Price
Bar = middle half of what customers paid · gold mark = category median.
Price verdictsGoogle asks reviewers whether the price was great, reasonable or overpriced; these are their answers.
Jobs customers hired them for
| Job | Reviews | Category typical |
|---|---|---|
| HVAC system maintenance | 56 | $37–$295 |
| A/C system maintenance | 52 | $51–$415 |
| Heating system repair | 30 | $158–$1.1k |
| Heating system maintenance | 30 | $37–$239 |
| A/C system repair | 26 | $209–$786 |
| HVAC duct & vent repair | 9 | $271–$1.9k |
| Install thermostat | 9 | $57–$590 |
| Repair HVAC | 9 | $224–$535 |
