FAMILY-OWNED · LICENSED · LOCAL
Honest HVAC service for Bay Area homes.
We don't sell systems. We give you options — repair or replace, small fix or full install — with a written estimate before any work begins.
7AM–7PM · 7 days a week · No overtime charges · CSLB #1136642
- Licensed · CSLB #1136642
- 4.9★ Google · 500+ Verified Reviews
- NATE Certified Technicians
- EPA 608 Certified · MCE Participating Contractor
- BBB A+ Accredited
WHAT WE DO
Full HVAC services for Bay Area homes & businesses
Heat pumps, furnaces, AC systems, ductless mini-splits, installations, and maintenance. Factory-trained on Daikin. Certified on every major brand.
AC Repair
When your AC quits in July, we show up the same day across our core service area. No overtime charges.
From $75 diagnostic
Learn more →Furnace Repair
Gas, electric, or heat pump–based — we inspect, explain, and fix. Safety comes first.
From $75 diagnostic
Learn more →Heat Pump Install & Service
BayREN, MCE, PG&E, EBCE, and manufacturer rebates available on qualifying installs. We check what’s currently paying and handle the paperwork.
Rebate-eligible
Learn more →Ductless Mini-Split
Perfect for older Bay Area homes without ductwork. Factory-trained on Daikin & Mitsubishi.
From $5,500 single-zone
Learn more →HVAC Installation
Whole-home systems. Carrier, Daikin, Lennox, Trane, Mitsubishi, Goodman, and more.
From $6,500
Learn more →Maintenance Plans
Extend equipment life by 5–7 years. Priority scheduling. Keeps your warranty valid.
Bi-annual tune-ups, 15% off repairs
Learn more →
MEET THE OWNER
HVAC is my trade, not a side business.
My wife and I came to California in 2019 as political refugees. I was born in Ukraine, spent most of my adult life in Russia, and left when principled opposition to the regime was no longer safe for our family — three years before the full-scale invasion of Ukraine. We were in our early thirties, starting over with five thousand dollars. My father had worked as an engineer in industrial safety at thermal power stations, and those engineering roots are what pulled me toward working with real systems. I started with appliance repair, learned sealed refrigeration, moved into air conditioning, then into HVAC. Today I hold a California Contractor License (CSLB #1136642) — I took and passed the exam myself — plus 2025 factory training on Daikin heat pumps in Houston.
Bay Area HVAC Service is family-run. My wife handles the back office. I’m in the field. We work with a small, consistent crew of four technicians and installers — not a rotating cast of strangers. For installations and complex service quotes, I meet you personally. For standard service calls, our certified technicians arrive — and every invoice carries my license number.
I don’t try to sell you a service. I give you options. If the right answer is a repair instead of a replacement, I’ll tell you. Long-term relationships matter more than any single job.
— Andrew Kuznetsov, Founder · CSLB #1136642
Read our full story →TRANSPARENT PRICING
What you'll pay — before we start any work
We give you a written estimate up-front. No surprises, no high-pressure upsells.
Diagnostic Visit
$75
Full system inspection. Credited toward any repair.
Common Repairs
$150 – $450
Capacitor, contactor, refrigerant recharge, igniter replacement.
Installations
From $6,500
Heat pumps, furnaces, AC systems. Rebate-eligible equipment available.
Every job gets a written estimate before work begins. Maintenance plan members save 15% on all repairs.
See all pricing & plans →SERVING THE BAY AREA
Family-owned, local, 25 cities from San Ramon to Oakland
Based in San Ramon. Serving Tri-Valley, Diablo Valley, East Bay, and beyond.
Tri-Valley
- Danville ↗
- San Ramon ↗
- Alamo ↗
- Blackhawk ↗
- Pleasanton ↗
- Livermore
- Dublin ↗
Diablo-Valley
- Walnut Creek ↗
- Concord
- Lafayette ↗
- Orinda
- Moraga
- Martinez
South-Bay
- San Jose
- Santa Clara
- Cupertino
- Los Gatos
- Saratoga
- Sunnyvale
- Mountain View
- Palo Alto
- Los Altos
- Menlo Park
Inner-East-Bay
- Oakland
- Berkeley
- Richmond
- Fremont
- Hayward
- Union City
- Newark
- San Leandro
- Castro Valley
- Milpitas
Not in our list? Call us — we'll tell you in 30 seconds.
WHAT OUR NEIGHBORS SAY
4.9★ across 500+ verified Google, Yelp, and Thumbtack reviews
Real names, real cities, real jobs. Click any review to verify on the platform.
We had a heater making some truly scary noises, so we called ADRIUM because several friends highly recommended them. Andrew was out here incredibly fast. He took the time to explain all our options — no pressure to upsell, just honest, considerate service. It’s rare to find this level of transparency and personal care these days.
Came out to fix my furnace and I couldn’t be happier with the level of service. Arrived quickly, the technician was friendly, and my problem was fixed in no time. Highly recommend.
Sandy Lopez
Alamo · Furnace Repair
January 2025
Verified Google review
Great team. Technicians are knowledgeable, friendly, and always on time. They did an amazing job quickly and efficiently. Highly recommend.
Rose Porter
Blackhawk · AC & HVAC
August 2024
Verified Google review
Extremely professional and always prompt and courteous. Extensive knowledge of HVAC and always willing to go the extra mile to ensure the job is done right.
Daljit Caur
Dublin · HVAC
May 2024
Verified Google review
Quickly identified and fixed the problem at a fair price. Knowledgeable, friendly, efficient. Definitely recommend.
Hao Dong
Livermore · HVAC
March 2025
Verified Google review
Professional, knowledgeable, and quick in diagnosing and fixing the problem. Highly recommend.
Krishnam C.
Pleasanton · HVAC
February 2025
Verified Google review
Extremely satisfied with the service. The technician was friendly, knowledgeable, and efficient. Work was done quickly and I felt like I was getting great value. Highly recommend.
Willow Smith
Danville · HVAC
November 2024
Verified Google review
BRANDS WE SERVICE & INSTALL
Factory-trained on Daikin. Fully certified on Carrier, Lennox, Trane, Mitsubishi, Goodman, Rheem, and more.
FOR REALTORS & PROPERTY MANAGERS
Priority HVAC service for transaction coordinators and portfolio PMs.
Same-day response on active listings. One accountable owner-contact. NET-30 invoicing. Built for professionals who can’t afford delays.
24–48h response SLA on active listings
Direct invoicing for PM portfolios
Andrew is your single point of contact
SAVE ON INSTALLATIONS
Stack utility, CCA, and manufacturer rebates. We handle the paperwork.
We work with BayREN, MCE, PG&E, EBCE / Ava, and manufacturer instant rebate programs. Eligibility, amounts, and program funding vary — we confirm what’s actually paying when we write your estimate. Federal 25C credit expired Dec 31, 2025.
Heat pump rebates
Bay Area Regional Energy Network programs run on annual funding cycles. Heat pump rebates have been available in past cycles; we check current eligibility, budget, and program status when we write your estimate.
Limited budgetHeat pump rebate
MCE's residential heat pump HVAC rebate is paid per ton of installed capacity to MCE customers. Participating contractor required — we are. Amounts and territory confirmed at quote time.
Participating contractorEquipment & thermostat
Rebates on ENERGY STAR® qualifying equipment in PG&E territory. Smart-thermostat rebate available on most installs. Amounts vary by quarter — confirmed at quote time.
Eligible installsBeyond HVAC — our nonprofit work
My wife and I founded TechAid for Refugees, a registered 501(c)(3), to refurbish and donate household appliances to newly-arrived refugee families in the Bay Area — microwaves, kitchen appliances, beds, and household essentials for families starting over in apartments.
Learn about our community work →Ready to get started?
Call us directly, or send us a few details and we’ll get back within the hour during business hours.
(925) 999-40957AM – 7PM · 7 days
Same-day estimates · Written quotes · CSLB #1136642
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For urgent AC or heating emergencies, please call (925) 999-4095.
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