Danville CA Heating and Air Conditioning Service

Certified Heating & Air Conditioning provides heater and air conditioning repair, service, installation and services in Danville CA and surrounding areas. Check out what some of our customers are saying about Certified Heating & Air Conditioning Heating and Air Conditioning services.

Local Reviews
for Danville, CA

Rated 5.0 out of 5 stars based on 5 customer reviews

Map of Danville, CA

quick service well done




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


Map of Danville, CA

Awesome




She was amazing. Do anything to keep her


Map of Danville, CA

Great quick service





Map of Danville, CA

Great job!




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


Map of Danville, CA

Exceeded expectations in every way




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.


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
Lucas G.

Lucas G.

Performed diagnostic on 18 year old Carrier. Not cooling the home. Weak airflow throughout the home. Failed component on the AC, replaced. Upstairs zone wasn’t opening allowing air the cool the upstairs. Unit will likely fail again so client is looking into upgrading unit to be more efficient and keep them comfortable. Left door hangers for discounted tune ups to all the neighbors.

Near Gerbera St, Danville, CA 94506
Brittany B.

Brittany B.

Performing AC tune up service on 2007 Carrier condenser and high efficiency furnace. Cleared out drain system, checked electrical and safety components, checked refrigerant level, tested motor amperages, and went over options for solar. Clients are now Certified members and we look forward to keeping them comfortable in their beautiful home for many years to come. Thank you for choosing Certified!

Near Silver Maple Dr, Danville, CA 94506
Danville, CA - Performing AC tune up service on 2007 Carrier condenser and high efficiency furnace. Cleared out drain system, checked electrical and safety components, checked refrigerant level, tested motor amperages, and went over options for solar. Clients are now Certified members and we look forward to keeping them comfortable in their beautiful home for many years to come. Thank you for choosing Certified!
Brittany B.

Brittany B.

Going over pricing for heat pump system to work directly off of client’s new solar on the roof. Heat pump is fully electric and give the added benefit of not only being a more efficient system but also removes the gas bill for heating the home during cold winter months. Went over different options to give client best information possible and set up a time to return and perform a full tune up on the existing system to see what will work best for the homeowners.

Near Gerbera St, Danville, CA 94506
Danville, CA - Going over pricing for heat pump system to work directly off of client’s new solar on the roof. Heat pump is fully electric and give the added benefit of not only being a more efficient system but also removes the gas bill for heating the home during cold winter months. Went over different options to give client best information possible and set up a time to return and perform a full tune up on the existing system to see what will work best for the homeowners.
Lucas G.

Lucas G.

AC Tune Up on 18 year old Goodman. Unit needs several repairs. Because of the cost and the high utility bill, client would like to upgrade to a newer more efficient system.

Near Pinewood Ct, Danville, CA 94506
Chris  R.

Chris R.

Performed tune up on air conditioner, cleaned filter and outdoor unit. Checked capacitor, contactor, electrical connections, refrigerant levels and amperage draw on compressor, condenser fan motor and blower. System running perfectly all electrical components in good working order and within spec.

Near Meadow Lake Dr, Danville, CA 94506
Chris  R.

Chris R.

Performed tune up on air conditioner, cleaned filter and outdoor unit. Checked capacitors, contactor, electrical connections, refrigerant levels and amperage draw on compressor, condenser fan motor and blower. LRA on compressor at 145 amps which is very high causing stress on compressor and high utility costs, added two pounds R22 per tune up special. Blower motor at max amps and makes loud grinding noise on start up and blower capacitor out of spec. Dual run capacitor below spec as well, contactor burnt and pitted. Condenser fan motor at max amps. System 22 years old and cooling but not well

Near Kaitlyn Ln, Danville, CA 94506
Danville, CA - Performed tune up on air conditioner, cleaned filter and outdoor unit. Checked capacitors, contactor, electrical connections, refrigerant levels and amperage draw on compressor, condenser fan motor and blower. LRA on compressor at 145 amps which is very high causing stress on compressor and high utility costs, added two pounds R22 per tune up special. Blower motor at max amps and makes loud grinding noise on start up and blower capacitor out of spec. Dual run capacitor below spec as well, contactor burnt and pitted. Condenser fan motor at max amps. System 22 years old and cooling but not well
Chris  R.

Chris R.

Performed two system air conditioner tune up, cleaned filters and outdoor units. Checked capacitors, contactors, electrical connections, refrigerant levels and amperage draw on compressor, condenser fan motor and blower. Downstairs system from 2012 upstairs from 1984. Downstairs system in good shape recommend hardstart kit. Upstairs system in poor shape, condensate line needs to be redone, add safety switch, coil rusty blower using more power than manufacturer allows and ductwork undersized for system

Near Sequoia Terrace, Danville, CA 94506
Danville, CA - Performed two system air conditioner tune up, cleaned filters and outdoor units. Checked capacitors, contactors, electrical connections, refrigerant levels and amperage draw on compressor, condenser fan motor and blower. Downstairs system from 2012 upstairs from 1984. Downstairs system in good shape recommend hardstart kit. Upstairs system in poor shape, condensate line needs to be redone, add safety switch, coil rusty blower using more power than manufacturer allows and ductwork undersized for system
Chris  R.

Chris R.

Performed diagnostic on air conditioner found filter clogged, blower assembly and evaporator coil clogged and need cleaning. Condenser fan motor failing, dual run capacitor below spec rated 35/5 currently at 12.5/1. Compressor amperage high with low demand at 70 degrees outside. Leaking schrader valves R22 system 16 years old. Returning at later time to go over replacement options

Near Serene Ct, Danville, CA 94526
Danville, CA - Performed diagnostic on air conditioner found filter clogged, blower assembly and evaporator coil clogged and need cleaning. Condenser fan motor failing, dual run capacitor below spec rated 35/5 currently at 12.5/1. Compressor amperage high with low demand at 70 degrees outside. Leaking schrader valves R22 system 16 years old. Returning at later time to go over replacement options
Chris  R.

Chris R.

Performed air conditioning diagnostic. House not cooling off, air is warm. Low refrigerant, blocked indoor coil. Ductwork is damaged and improperly sized. 18 year old R22 Tempstar system

Near Diablo Rd, Danville, CA 94526
Danville, CA - Performed air conditioning diagnostic. House not cooling off, air is warm. Low refrigerant, blocked indoor coil. Ductwork is damaged and improperly sized. 18 year old R22 Tempstar system
Brittany B.

Brittany B.

Performing emergency AC diagnostic service on 2009 Trane condenser. Discovered that the contactor failed and was not supplying 24v across, which prevents the system from starting up. Pressure switch on refrigerant line also failed. Ordering new part and was able to get the system temporarily up and running to keep our new certified members cool on this very hot summer day in Danville.

Near El Alamo, Danville, CA 94526
Danville, CA - Performing emergency AC diagnostic service on 2009 Trane condenser. Discovered that the contactor failed and was not supplying 24v across, which prevents the system from starting up. Pressure switch on refrigerant line also failed. Ordering new part and was able to get the system temporarily up and running to keep our new certified members cool on this very hot summer day in Danville.
Jill F.

Jill F.

AC maintenance on a brand new installed by Certified Solar Heating and Air Conditioning, American Standard split unit system . Happy to report everything is work as designed and the Wallace’s should have a cool oasis out of the heat this summer.

Near Jacaranda Dr, Danville, CA 94506
Brittany B.

Brittany B.

Performing AC tune up on 1998 Bryant condenser and 1997 Bryant high efficiency furnace. Discovered that condition of system was hidden from new homeowners - someone painted over the rust to hide the poor condition of the furnace. Refrigerant is not balanced properly. Made recommendations for much needed repairs and went over replacement options.

Near El Pintado Rd, Danville, CA 94526
Yvonne G.

Yvonne G.

No cool diagnostic ripped wire from under neath the house replaced ac up and running

Near Blair Ct, Danville, CA 94526
Yvonne G.

Yvonne G.

Ac certified maintenance check up

Near Highbridge Ln, Danville, CA 94526
Danville, CA - Ac  certified maintenance check up
Brittany B.

Brittany B.

Giving estimate to replace a 1989 Carrier system with a more efficient system using the PACE program (California First). Clients will be very happy with their new system and have peace of mind knowing that they will make it through the cold winters and brutally hot summers for many years to come!

Near Liverpool St, Danville, CA 94506
Danville, CA - Giving estimate to replace a 1989 Carrier system with a more efficient system using the PACE program (California First). Clients will be very happy with their new system and have peace of mind knowing that they will make it through the cold winters and brutally hot summers for many years to come!
Brittany B.

Brittany B.

Performing furnace maintenance on 2002 American Standard furnace, ductwork and crawl space inspection and system evaluation for our Certified member.

Near Merrilee Pl, Danville, CA 94526
Danville, CA - Performing furnace maintenance on 2002 American Standard furnace, ductwork and crawl space inspection and system evaluation for our Certified member.
Michael M.

Michael M.

Parts install

Near Sutton Cir, Danville, CA 94506
Danville, CA - Parts install
Brittany B.

Brittany B.

Diagnostic on upstairs condenser - system is not cooling.

Near Bengali St, Danville, CA 94506
Danville, CA - Diagnostic on upstairs condenser - system is not cooling.
Tyler B.

Tyler B.

Maybe time to replace pretty soon.

Near Leeds Ct E, Danville, CA 94526
Tyler B.

Tyler B.

Getting these nice folks the cool air that they need.

Near Culet Dr, Danville, CA 94506
Danville, CA - Getting these nice folks the cool air that they need.
Brittany B.

Brittany B.

Diagnostic, system is not cooling. Diagnosed failed dual capacitor.

Near Blair Ct, Danville, CA 94526
Danville, CA - Diagnostic, system is not cooling. Diagnosed failed dual capacitor.
Brittany B.

Brittany B.

A/C tune up on 2 full systems, furnace safety inspections.

Near Vicenza Ct, Danville, CA 94526
Danville, CA - A/C tune up on 2 full systems, furnace safety inspections.

Certified Heating & Air Conditioning
Certified Heating & Air Conditioning
5 star service! 71 reviews