East Bay HVAC guides from a Walnut Creek shop
OTTER HVAC publishes field guides for East Bay homeowners — AC not cooling, no heat, heat pumps, mini-splits, rebates, and the pitches we tell you to ignore. Every article is written from the same shop at 2939 Santos Ln, Walnut Creek, CA 94597.
Repair visits start at a flat $69 diagnostic. Installation estimates are free in-home. We do not invent compressor prices on the phone, and we do not advertise 24/7 because hours are 7:00am–5:00pm, seven days a week.
Guides are grouped by Cooling, Heating, Heat pumps, Controls, Airflow, Maintenance, Mini-splits, Commercial, Repair, Costs, Equipment, Install, Trust, Rebates, Cities, Electrical. Each piece maps to a real service we perform. If a repair is the better value, that is what we recommend after the test.
EPA 608, OSHA, and NATE certified technicians. Public reviews average 5.0 stars across roughly 146 Google and 151 Yelp reviews. Call (650) 900-0440 or book online.
Use these articles to prepare for a visit. Then tell us the city, the symptom in one sentence, and the brand if you know it — that is how we stock the truck.
Related: HVAC services · Honest pricing · Book a visit · Service areas
Frequently asked questions
Are these HVAC articles local to the East Bay?
Yes. They are written for Walnut Creek, Concord, San Ramon, Oakland, and the rest of our listed service cities — not generic national HVAC copy.
Do you still diagnose in person?
Yes. Reading a guide is not a substitute for a $69 diagnostic. We test on site and quote before repair work.
Can I book from a guide?
Yes. Call (650) 900-0440 or use the contact form. Mention the article if it matches the symptom.
Explore related pages
- HVAC services
- Honest pricing
- Book a visit
- Service areas
- AC not cooling in the East Bay
- AC running but the house is still hot
- Frozen AC coil: ice on the indoor unit
- Why your AC short-cycles
- AC will not turn on
- AC blowing warm air
- AC leaking water indoors
- Loud AC noises worth a visit
- Outdoor AC fan not spinning
- AC keeps tripping the breaker
- Furnace not heating
- Furnace blowing cold air
- Furnace short-cycling
- Pilot light vs electronic ignitor
- Yellow furnace flame
- Furnace banging on startup
- No heat in Walnut Creek
- Heat pump not heating
- Heat pump iced over
- Heat pump blowing cool air in winter
- Thermostat not working
- Thermostat set to the wrong system
- Weak airflow upstairs
- Some rooms never reach setpoint
- HVAC pricing and diagnostic fee
- Book HVAC service online
- East Bay service areas
References and credentials
- U.S. DOE Energy Saver
- EPA Section 608
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: U.S. DOE Energy Saver · EPA Section 608