520 Trestle Place
Downingtown, PA 19335
(610) 873-1244

Local Reviews
for malvern, pa

Rated 4.9 out of 5 stars based on 41 customer reviews

Great

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Great service as usual

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Great service - as always

Dibiase is top class (every time). Dave was great. He was creative in solving problems of a difficult installation and really profession in the execution. And the crew were fully cognizant of Covid precautions. Full marks.

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Great

Chris was professional and personable. He performed the Fall HVAC maintenance visit in a timely manner and advised that all was well. I am very please with Chris and DiBiase

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Do NOT go anywhere else

Dibiase are phenomenal - customer service is exceptional. Technical staff are really professional, fully in tune with of customer needs, courteous and cognizant of Covid precautions. I won't go anywhere else.

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Great check up servu

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Fan replacement

On Time, even early. Went right to work and got everything up and running.

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Service update

Great person

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Great job

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Old system - best attempt.

Luis was great, clean,meticulous and helpful. My system was shot but he did his best. Appreciative of the effort.

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Job Locations
for malvern, pa

Kurt M.

Kurt M. Job Checkin

Install a new Defrost Control Board for the Common Area/Hallway System. Control Board was previously removed from this Unit to get the system for Apartment 2106 running. Test operation of system upon completion. Installed new defrost board for hallway heat pump. Air handler is located in 2nd floor mechanical room. Cycled on heat pump at thermostat. Had a 19 degree temperature rise at air handler. Pressures were 343/94 at heat pump at 39 degrees outside temp. Heat pump is working fine again.


Barry P.

Barry P. Job Checkin

Heat tune up for 2.5 ton Bryant Heat Pump system. 24F temperature rise with outdoor air temp of 29F. Aux Heat Ok. Mrs. Conklin provides her own humidifier pads and filters; ok. All electric motors and components are mechanically sound. Refrigerant pressures ok. Mrs. Conlin explained that her thermostat has turned to system off when she checks for outdoor temp this a problem internal to the thermostat. System is operating well at the time of this maintenance/tune up.


Kurt M.

Kurt M. Job Checkin

Gave customer estimate to temporarily disconnect, and re connect outdoor a/c system to repair foundation crack. Also homeowner mentioned 50 gallon water heater does not keep up with demand. Gave quote to install 75 gallon propane water heater.


Barry P.

Barry P. Job Checkin

Heat tune up on 140K BTU natural gas boiler. Verified tstat operation/cycling of furnace. Cleaned flues. Boiler pressure 18 psi. Verified pilot assembly/ condition of burners. Verified response of all zones to a call for heat. Circulator good. Combustion/draft test good. Boiler is operating well at the time of this tune up.


Brian B.

Brian B. Job Checkin

Checked noise complaint from air handler. Checked air filter ok. Checked blower motor, checked electric heat relays. Heard no unusual sounds checked temperature rise and btu output. 25,920 @43 degrees Heat pump is 17 years old and uses R-22 refrigerant, recommend replacing system.


Kurt M.

Kurt M. Job Checkin

Install a new Defrost Control Board and Single Pole Contactor for the Hallway Unit. Controls were removed from Hallway Unit to get Apartment 6110 system up and running. Test operation of system upon completion. Installed defrost board and contactor. Tested system in heating mode at 30 degrees outside temp. Pressures were 261/76. When we first turned on air handler burnt off dust collected on strip heat than checked temperature rise on hallway system. Temp rise was 19 degrees. System is working fine at time of service.


Kurt M.

Kurt M. Job Checkin

Found thermostat set on 75 degrees and room temperature was 75 degrees. Problem with heat pump is very intermittent. Went up to roof and checked refrigerant pressures at 244/102 very good. Put system threw defrost mode and everything went smoothly. System is working fine, at this point beacause of being intermittent, they are going to just reset at times. System is working fine at time of service.


Kurt M.

Kurt M. Job Checkin

Found 3 amp fuse blown at air handler. Replaced fuse with one they provided. Found bad defrost board and contactor. Swapped out from hall way unit. After replacing checked 410a refrigerant pressures were 262/81. System is back up and working. Need to order defrost board and contactor for hallway heat pump. Apt unit is back up and working fine again at time of service.


Barry P.

Barry P. Job Checkin

PECO Heat Pump Tune Up on 3 Ton Goodman Heat Pump System. Washable filter ok. 28F temp rise with outdoor air temp of 39F. Both coils in good condition. All electrical components reading within specs. Aux heat ok. System is operating well at the time of this maintenance/tune up.


Chris B.

Chris B. Job Checkin

Service call that the Fuse at the Air Handler was blowing when the outdoor unit would go to start. Upon arrival found fuse blown in air handler. Installed resettable test fuse and put system in operation. The electric Heat Kit would run but the outdoor unit was not running. Checked voltages and connections at Air Handler and was receiving 24V for the outdoor unit. Proceeded to the rooftop to further test. Found a control Board was receiving 24V input but not sending the output. Also found Relays were clicking and the indicator lights were flashing normal operation. Switched Control Board with a board from a hallway unit. The Board stayed in the 5 Minute Delay Flash Code. Checked Voltage across Common and Y and found Voltage would drop out for a split second intermittently. Replaced Thermostat and put system back in operation and the Fuse blew as soon as the outdoor unit came on. Tested Contactor and found Contactor Coil testing low Ohms. When the Contactor was removed, you could smell


Brian B.

Brian B. Job Checkin

Performed heating maintenance, replaced standard air. Blew out condensate trap and drain. Cleaned burners and flame, inspected heat exchanger. Checked voltage, amperage and electrical connections. Measured capacitor values. Started gas furnace, tested limit and safety switches. Performed combustion test. Measured fuel pressures. Checked operation and temperature rise.


Luis T.

Luis T. Job Checkin

Performed oil furnace tune up/cleaning check electrical low and high replaced air filter, change nozzle oil filter and pump strainer, cleaned heat exchanger and flue pipe, also cleaned chimney base, check and cleaned burner electrodes, performed smoke, draft and combustion test good numbers cycle furnace couple times check supply and return air ok 127 supply 70 return


Brian B.

Brian B. Job Checkin

Performed heating maintenance, checked media filter. Cleaned burners and flame sensor, inspected heat exchanger. Blew out condensate trap. Checked voltage, amperage and electrical connections, measured capacitor values. Started gas furnace, measured fuel pressures. Performed combustion test. Tested limit and safety switches. Checked operation and temperature rise.


Barry P.

Barry P. Job Checkin

Heat tune ups on 2 Lennox natural gas furnaces. Verified thermostat operation/cycling. Replaced 16x25x1 filters on each system. Replaced water panel on second floor system. Cleaned flame sensors and checked a HSI. Blowers are n good condition/capacitors reading within specs. Combustion test proves integrity of heat exchanger. Systems are operating well at the time of this maintenance. Provided estimate to add Apriliare 600 humidifier to first floor system. Install Aprilaire 600 bypass humidifier to the first floor system. Will collect 50% today.


Dean M.

Dean M. Job Checkin

Performed Quality Assurance inspection on a newly installed Bosch tankless water heater. Everything looks proper and all penetrations sealed. Nice looking install. Added pan under unit and put dehumidifier and condensate pump in pan per customers request.