CERTIFIED HVAC SERVICE FOR DANVILLE, CA

HVAC Service in Danville, CA

Boat A Dawn Walnut Creek, California

The Town of Danville is located in Contra Costa County, California. It is one of the incorporated municipalities in California that uses “town” in its name instead of “city”. Danville’s warm summer Mediterranean climate is typical of California’s interior valleys. In summer, high pressure leads to near unbroken sunshine and virtually no precipitation. Days start out cool but quickly warm up, with high temperatures normally in the 80s Fahrenheit. Temperatures of 100 °F or hotter occur numerous times during heatwaves.

AC Repair & Replacement Service in Danville, CA

AC problems in Danville, CA and Contra Costa area seem to spring up at the worst possible time, creating a degree of urgency for them to be fixed. Luckily, your local Certified technician is more likely than not to diagnose and fix your problem on the first visit. We keep a large percentage of parts stocked at our warehouse, helping to ensure quality and fast turnaround time. We live up to our name, by offering a 24-Hour Fix-It Guarantee!

Is your AC unit blowing warm air? The most common causes are typically:

These can be interrelated issues. For example, a unit running on low refrigerant can put more issues on the compressor. Certified Heating and Air Conditioning has more than 20 years of experience in diagnosing and treating common AC problems.

Furnace Repair & Heater Replacement Service in Danville, CA

Furnace problems in the East and North Bay area seem to spring up at the worst possible time, creating a degree of urgency for them to be fixed. Luckily, your local Certified technician is more likely than not to diagnose and fix your problem on the first visit. We keep a large percentage of parts stocked at our warehouse, helping to ensure quality and fast turnaround time. We live up to our name, by offering a 24-Hour Fix-It Guarantee!

Is your unit feeling colder than normal? There are many causes:

Danville, CA Heating and Air Conditioning Services

Check out what our customers are saying about Certified Heating and Air Conditioning – Air Conditioning and Heating Services!

Local Reviews
for Danville, CA

Certified Heating and Air Conditioning Rated 5.0 out of 5 stars based on 5 customer reviews

Map of Danville, CA 94526

quick service well done




Review of Certified Heating and Air Conditioning

Brittany was tireless in trying to diagnose our problem. Hard-working and efficient.

DanvilleCA94526 37.845-122.0125

Map of Danville, CA 94506

Awesome




Review of Certified Heating and Air Conditioning

She was amazing. Do anything to keep her

DanvilleCA94506 37.825-121.9225

Map of Danville, CA 94506

Great quick service




Review of Certified Heating and Air Conditioning

DanvilleCA94506 37.8275-121.9225

Map of Danville, CA 94526

Great job!




Review of Certified Heating and Air Conditioning

Quick, clean furnace install. Professional and polite crew. Definitely would recommend Certified! Thanks.

DanvilleCA94526 37.795-121.9725

Map of Danville, CA 94506

Exceeded expectations in every way




Review of Certified Heating and Air Conditioning

From beginning to end Tyler, Zach, and Noah were professional, respectful, courteous, and highly competent. They addressed all my questions and concerns. Tyler even helped me change a flat tire on my car ! We are very pleased with our new heating and air conditioning system as promised.

DanvilleCA94506 37.8025-121.9125

Jeremiah  S.

Jeremiah S.

In the Danville area performing a furnace maintenance! This aging furnace is not in the best shape but is still running! We gave our customer some options that will make life more comfortable in his home!

Near Casablanca St, Danville, CA 94506
Danville, CA - In the Danville area performing a furnace maintenance! This aging furnace is not in the best shape but is still running! We gave our customer some options that will make life more comfortable in his home! Danville, CA - In the Danville area performing a furnace maintenance! This aging furnace is not in the best shape but is still running! We gave our customer some options that will make life more comfortable in his home!
Jeremiah  S.

Jeremiah S.

Performed a furnace maintenance in the Danville area!

Near Red Maple Dr, Danville, CA 94506
Danville, CA - Performed a furnace maintenance in the Danville area! Danville, CA - Performed a furnace maintenance in the Danville area!
Wyatt C.

Wyatt C.

New 50 Gallon Water Heater Replacement taking place in the neighborhood of Blackhawk in Danville Ca. Glad to help clients in need of Hot Water on a Saturday!

Near Live Oak Dr, Danville, CA 94506
Danville, CA - New 50 Gallon Water Heater Replacement taking place in the neighborhood of Blackhawk in Danville Ca. Glad to help clients in need of Hot Water on a Saturday!
Jeremiah  S.

Jeremiah S.

In the Danville area troubleshooting a water heater! Unfortunately this old water heater has stopped working and no longer will be in service. Tomorrow, there will be a new water heater installed and our customer will able to enjoy his hot water again!

Near Live Oak Ct, Danville, CA 94506
Danville, CA - In the Danville area troubleshooting a water heater! Unfortunately this old water heater has stopped working and no longer will be in service. Tomorrow, there will be a new water heater installed and our customer will able to enjoy his hot water again! Danville, CA - In the Danville area troubleshooting a water heater! Unfortunately this old water heater has stopped working and no longer will be in service. Tomorrow, there will be a new water heater installed and our customer will able to enjoy his hot water again!
Frank G.

Frank G.

In black hawk Danville ca with furnace this just need A little winter cleaning and is now up and operational after a night without heat

Near Live Oak Dr, Danville, CA 94506
Danville, CA - In black hawk Danville ca with furnace this just need A little winter cleaning and is now up and operational after a night without heat
Chris  R.

Chris R.

Performed tune up on furnace and air conditioner Furnace has long delay before starting, air conditioner operating upon arrival Filter not installed and unknown last time it was changed Blower assembly dirty, adds stress to motor, lowers airflow and reduces indoor air quality Evaporator coil plugged which lowers efficiency of air conditioning 20%, reduces indoor air quality and adds stress to heat exchanger in heating season because of reduction in airflow Blower capacitor is incorrect size, should be a 5mfd currently a 7.5mfd Blower motor amperage is high which has a higher chance of failure Heat exchanger has thermal stress and rust Burners are rusty due to efficiency in furnace Circuit board has burn marks which means it is at a higher chance of failure Dual run capacitor in air conditioner is below manufacturer specifications which means a higher risk of failure and additional stress on compressor Contactor burnt and pitted Start up amperage high which results in higher

Near Cedar Ln Ct, Danville, CA 94526
Danville, CA - Performed tune up on furnace and air conditioner 
Furnace has long delay before starting, air conditioner operating upon arrival 
Filter not installed and unknown last time it was changed 
Blower assembly dirty, adds stress to motor, lowers airflow and reduces indoor air quality 
Evaporator coil plugged which lowers efficiency of air conditioning 20%, reduces indoor air quality and adds stress to heat exchanger in heating season because of reduction in airflow 
Blower capacitor is incorrect size, should be a 5mfd currently a 7.5mfd 
Blower motor amperage is high which has a higher chance of failure 
Heat exchanger has thermal stress and rust
Burners are rusty due to efficiency in furnace 
Circuit board has burn marks which means it is at a higher chance of failure 
Dual run capacitor in air conditioner is below manufacturer specifications which means a higher risk of failure and additional stress on compressor 
Contactor burnt and pitted 
Start up amperage high which results in higher
Lucas G.

Lucas G.

Performed tune up on two air-conditioning units. Unit for upstairs was not cooling. It was low on refrigerant, added refrigerant unit is now cooling properly. Downstairs unit was running but had a component that needed to be replaced. Both units in fairly decent shape. Client had sub par attic insulationAs well. Client Julian maintenance program to keep systems operating properly

Near Camino Ramon, Danville, CA 94526
Yvonne G.

Yvonne G.

Ac tune up

Near Diablo Rd, Danville, CA 94526
Danville, CA - Ac tune up
Chris  R.

Chris R.

Performed late night emergency diagnostic on failed 10 year old Carrier air conditioner. Found failed dual run capacitor, clogged drain line causing water to overflow into furnace compartment and blower motor at max power consumption and blower capacitor below spec.

Near Rosewood Ct, Danville, CA 94506
Danville, CA - Performed late night emergency diagnostic on failed 10 year old Carrier air conditioner. Found failed dual run capacitor, clogged drain line causing water to overflow into furnace compartment and blower motor at max power consumption and blower capacitor below spec.
Lucas G.

Lucas G.

Replaced breaker for air conditioner that was not cooling. Breaker would repeatedly trip. Unit running well.

Near Hilferd Way, Danville, CA 94526

If you are searching for reliable heating and AC technicians in Danville, give Certified Heating and Air Conditioning a try. We have established a solid customer foundation in Contra Costa county over the past four years because of our dedication to the customer backed by numerous guarantees. We are home of the FREE second opinion, so if you feel like you’ve been treated unfairly by another company, call us – our family-owned, family-run company will bring you in and treat you as our own.