When it comes to your Downingtown, PA’s home heating, cooling and water heater systems, DiBiase Heating & Cooling Company makes sure they’re running at peak efficiency for your improved indoor comfort, convenience and safety.
This is a service promise and a reflection of our core values: integrity, honesty, quality. Read reviews from your neighbors in Downingtown, PA to see how we live up to these values every day, in every way.

Local Reviews
for Downingtown, PA

Rated 4.9 out of 5 stars based on 92 customer reviews


Thank you. We don't have a problem anymore.




Thanks for fixing the problem with the gas furnace. It is working great now. I'm happy we switched to your company. Great people and service.


Great service awsome tech





Happy he solved the problem




Kurt with Dibiase was able to diagnose the problem and provide a remedy. Thank you.


Great service!





Thanks guys!




Great service. They got my heat running after hours on a cold night.Joe and Chris were very nice and knowledgeable. Thanks DiBiase!


Great, prompt service!





Punctual and Efficient




I love the txt messages I receive when the tech is on the way to my house. The DiBiase techs are professional, knowledgeable and efficient.


Amazing service!!





Professional service





Excellent service and very polite.





Best company ever very efficient, price was right and the technician was great





Two Thumbs Up





Excellent job




Satisfaction 100% excellent job


Replaced old hvac




Super service. Quick, professional, friendly. Really happy we went with them.


Awesome Service!




Great service, friendly staff, and very comprehensive!


Great Service - professional




Very knowledgeable


Great service




Same day service and the technician was on time in the two hour window provided!


Professional service




Tech gave me some tips & answered all my questions so I fully understood what he was talking about. Great job.


Above and beyond awesome!




Just had my yearly service. Thought it would be a quick in and out. Of course with my luck it was not! Haha! Luis was so thorough and explained everything. Showed me all along the way. Your company and techs are the best!!! Keep up the good work!


Great Service




Luis was very professional. Took time to review and explain process and recommendations.


Well done




Technician Luis was professional and courteous. Spent time explaining options for replacing parts and also was thorough with the work done on the furnace. Emailed invoice immediately. Effortless experience for me.


Excellent service!




Our technician Chris got our heater working like a champ!


Great service!




Chris was fantastic! Very friendly, answered all my questions and showed me how to use everything with my radiators. Excellent service!


Great service




Prompt, professional service


Excellent Service





Luis T.

Luis T.

Note: The air handler will need to be disconnected and moved in order to remove motor and replace........need to come back with couple ductwork drives to hold unit temporarily while replacing motor, installed new blower motor for air hundler C test and cycle fan ok 2.6 amps, also added 7 lbs to unit number B also added due to system B run units both on ac mode ok adjust charge to unit C as well both unit running ok, good split and filters ok,

Near Country Club Dr, Downingtown, PA 19335
Luis T.

Luis T.

Found unit off on E5 indicating blown fuse on air handler. Replaced 3 amp fuse and tested operation. Inspected all wiring at indoor and outdoor units and at thermostat. Tested heat pump and emergency heat and humidifier operation to ensure no loads were causing fuse to blow. Checked thermostat settings. Customer indicated data was choppy in portal and also the unit started up 4-6 hours before on cold days. Need to call ecobee to see if outdoor temperature is an input in recovery sequence.After several minutes unit did not start up outside. Found circuit breaker tripped. Reset breaker and breaker tripped right away. Inspected compressor and outdoor unit, Found harnesses for compressor melted onto compressor and wires burned up and melted. Could not get harness off of compressor. Need to call tech support to find out next course of action.2/15/19 replaced outdoor heat pump. Purged lines out thoroughly with nitrogen , brazed in system and leak checked. Pumped down system to

Near Barbara Dr, Downingtown, PA 19335
Christopher B.

Christopher B.

Performed Precision Heating Tune Up on Trane Heat Pump System. Replaced the 20x25x4 Air Filter, which was provided by Homeowner. Inspected Electrical Components on the Air Handler and the Outdoor Unit. The Single Pole Contactor for the Heat Kit is starting to become worn and pitted, but is operating properly at this time. Electrical Components on the Outdoor Unit are starting to wear but both Capacitors were testing within ratings and all Components are operating at this time. Tested Auxiliary/Electric Heat Kit on Air Handler. Measured Refrigerant Charge with System in Heat Pump Mode. Forced system into Defrost to ensure it was switching over properly.The Heat Pump System is about 22 Years old. Average life of Heat Pump Systems is 10-15 Years. System is operating to standards and is in overall good condition for the age. While System is currently operating to standards, due to the age, recommend begin planning for replacement of the system.

Near Brookwood Dr, Downingtown, PA 19335
Luis T.

Luis T.

Upon arrival found boiler off, customer showed me where water was coming from, b and g pump 100 series, whole circulator pump need to be replace, flanges also have to be replace, expplaneid customer about boiler condition, oil to gas conversion many years ago, would recommend replacing boiler instead putting any more money towards repairs, Steve to come out later on today for price in new boiler, and give customer options on new boiler

Near Bondsville Rd, Downingtown, PA 19335
Luis T.

Luis T.

Upon arrival we noticed the pressure relief valve was stuck open and leaking also the upper element was leaking and the lower element was not heating recommend replacement of tank recommend an expansion tank pan alarm and new ball valve

Near Lincoln Hwy E, Downingtown, PA 19335
Luis T.

Luis T.

Water leak, found water inside heater cabinet, noticed water stains under secondary exchanger cover plate, removed plate and use high temp gasket to resealed connections to secondary exnchager, charge diagnostic fee plus minimum labor, instead of regular repair price

Near Chiswell Dr, Downingtown, PA 19335
Luis T.

Luis T.

Amana 16 SEER 2 stage heat pump, Aprilaire 2310, Halo or Air Scrubber, Aprilaire zoning (2), Metal supply and return trunkd duct(insulated R-8) located in attic. Supply diffusers and return air grills on upper and lower levels.Ran new flex ducts for 2 lower level runs and lower level return and 6” flex duct for lower level supply, installed all collars and terminated flex on trunk lines. Installed end caps on 10x20 and 8x16 supply trunks. Installed 2 new zone dampers. Inspected all wiring and modified heat pump wiring to work with conventional system. Sealed all holes where ductwork was coming through the 2nd floor in

Near Park Dr, Downingtown, PA 19335
Luis T.

Luis T.

Replace furnace control board due to malfunction, after replacing control test and cycle heater operation ok cycle couple times no problem,

Near Adams Ln, Downingtown, PA 19335
Luis T.

Luis T.

Installed new pressure switch adjust pressure switch to -.35 wc, used field piece pressure switch tester, and also replce inducer assembly after repairs performed combustion test, cycle heater, found control board, not powering inducer, tap on relay and 115 was present, try to cycle other times furnace board would not power send 115 to inducer, new board need to be replace, will get back to customer with price on a new board,

Near Adams Ln, Downingtown, PA 19335
Luis T.

Luis T.

No heat, first floor heater, found heater trying to start, found open igniter, also found blower wheel really dirty, quoted for repairs, customer ok after all repairs cycle and test heater ok combustion test ok, found humidifier not working, needs new humidistat quoted for new humidistat customer ok replce humidistat and test humidifier ok,

Near Jefferson Ct, Downingtown, PA 19335
Luis T.

Luis T.

Found furnace locked out on pressure switch stuck open error code. Found that inducer motor was getting 120 volts but not running. After shaking motor it started up but is not going to stay running. Also found debrie stuck inside pressure switch port from vent. Distributer is closed and will need to get price on Monday for parts. Furnace is working for now,but parts need replaced.

Near Adams Ln, Downingtown, PA 19335
Luis T.

Luis T.

Replace cord, control board and also installed surge protector on board, Customer paid 750 to order parts will pay remaining balance will come back to install parts for unit number 6 after repairs, test unit on ac mode and heat ok also test electric element ok

Near Wallace Ave, Downingtown, PA 19335
Luis T.

Luis T.

Installed new gas furnace coil and AC unit as well as a humidifier re ran vinyl for condensate new pump tested everything out ok!

Near Langford Dr, Downingtown, PA 19335
Joseph D.

Joseph D.

Performed quality assurance inspection on system. Walked through humidifier and thermostat operation. Walked through PECO website for rebates.

Near Portland Dr, Downingtown, PA 19335
Joseph D.

Joseph D.

Customer indicated that there were several times that the thermostat setpoint was above the actual temperature and the furnace was not running. Also indicated there was a time when the furnace was not running but humidifier was running. Checked humidifier wiring and found wired to W (call for heat) wire through manual humidistat to solenoid valve. This indicates that the furnace possibly had a call for heat but was locked out on error. Checked furnace fault history and found last code as fault 3 indicating low pressure switch not opening or inducer fault. Checked inducer fan wiring, inspected vent system, checked all wiring to pressure switches, and inspected and cleaned vacuum tubes. No problems were found. Instructed customer to look and identify fault code if furnace shuts down again. Problem experienced can be due to wind or ice buildup in vent system.No charge warranty.

Near Southfield Dr, Downingtown, PA 19335
Luis T.

Luis T.

Performed Precision Heating Tune Up on Heat Pump System. Replaced the 20x20x1 Air Filter which was excessively dirty. While performing Maintenance, noted that the system was running for extended periods without shutting off. When testing the Electrical Components on the Air Handler found that the Air Handler is not wired to turn the Electric Heat Kit on. When the Heat Kit was tested, only 5kw was running due to a failed Double Stack Sequencer which supplies the other 10kw. Also found Blower Motor Capacitor testing below rating. The Thermostat is in poor condition and is recommended to be replaced. Also found the Double Pole Contactor for the Outdoor Unit was very worn and pitted. Included an estimate for the replacement of the recommended parts and rewiring of the Air Handler to allow the Heat Kit to run.

Near Downingtown, PA 19335
Joseph D.

Joseph D.

Turned system on and reset system. Checked oil flow and found no flow from pump discharge. Pushed solenoid connector all the way in and oil flow was established. Checked all wiring related to oil solenoid. Cut out one splice going from control to solenoid coil. Tested operation.If problem persists I informed Dave we would replace the solenoid and wire at no charge.

Near Surrey Ln, Downingtown, PA 19335
Christopher B.

Christopher B.

Service call that the Oil Fired Boiler was not operating. Upon arrival, spoke with Homeowner about issue. Found Boiler was receiving proper Voltage, but was not turning on. The Oil Primary Control was in normal operating mode and was not in a Lock Out Mode. Removed the Aquastat Cover to begin troubleshooting and the unit began running. Monitored the system and found the Aquastat was working intermittently and was not working properly. The relays in the Aquastat will start to fail causing the system to run intermittently. Ordered a replacement Honeywell Aquastat and returned to site to install. Removed Wiring and old Aquastat from the Boiler. Mounted the new Honeywell Electronic Aquastat and made all wiring connections. Programmed the settings of the Aquastat and put system in operation. With a call for Heat, monitored the operation of the Boiler to ensure it was shutting off at 180 Degrees and turning back on at 170 Degrees, as per set Differential. Please note, while testing system,

Near Surrey Ln, Downingtown, PA 19335
Christopher B.

Christopher B.

Service call that the Oil Fired Boiler was not operating. Upon arrival, spoke with Homeowner about issue. Found Boiler was receiving proper Voltage, but was not turning on. The Oil Primary Control was in normal operating mode and was not in a Lock Out Mode. Removed the Aquastat Cover to begin troubleshooting and the unit began running. Monitored the system and found the Aquastat was working intermittently and was not working properly. The relays in the Aquastat will start to fail causing the system to run intermittently. Ordered a replacement Honeywell Aquastat and returned to site to install. Removed Wiring and old Aquastat from the Boiler. Mounted the new Honeywell Electronic Aquastat and made all wiring connections. Programmed the settings of the Aquastat and put system in operation. With a call for Heat, monitored the operation of the Boiler to ensure it was shutting off at 180 Degrees and turning back on at 170 Degrees, as per set Differential. Please note, while testing system,

Near Surrey Ln, Downingtown, PA 19335
Joseph D.

Joseph D.

Turned system on and observed operation. Unit started up and fired up. Removed and cleaned drain tubing and trap. Cleaned pressure switch tubing lines and exercised switches. Inspected vent system for blockage. Removed and cleaned flame sensor. Cycled and tested unit multiple times to ensure proper operation. Measured amp draw to inducer fan assembly at .6 amps in high stage and motor rated at .75 amps. Inspected vacuum tubes for breaks or wear. Measured pressure at inducer housing at -1.6” and switch rating is - .90” with door on unit closed. When unit was in operation moved wiring connections on switch to see if unit would shut down but it ran consistently. Cycled several more times to ensure proper operation.Recommend annual maintenance on furnace and air conditioner.

Near Sherbrooke Ln, Downingtown, PA 19335
Luis T.

Luis T.

When I arrived found 100 amp breaker to be warm to the touch . After turning up thermostat about 10 degrees to bring on full 20 kw found Breaker getting hot to the touch , and strip heater drawling 82.4 amps . Installed new 100 amp Siemens breaker homeowner provided and removed 5 kw from heat strip to draw less amperage on circuit yet 15 kw should be more than enough to heat home. Tested strip heat it is now drawling 63 amps and breaker is not hot to the touch only warm.

Near Bolton Ln, Downingtown, PA 19335
Joseph D.

Joseph D.

Turned system on and found going out on 3 flash code indicating pressure switch not closing. Inspected vent system and could not locate intake pipe. Assuming intake pipe is between decking and aluminum cover under decking. Measured pressure with unit connected at -1.65–1.72 and when pipe was removed negative pressure increased to -2.3”. The switch is rated at -1.74”. Left intake pipe removed and wire tied to the side and rechecked pressures. There is adequate combustion air by means of 2 14”x14” grills high and low between mechanical room and finished space to ensure appliances in space meet code requirements. Recommend leaving pipe disconnected until pipe can be modified at outside by taking down aluminum under decking and rerouting.

Near Honeymead Rd, Downingtown, PA 19335
Luis T.

Luis T.

Found inducer motor runnning but not proving pressure switches. Went outside and found intake pipe had snow sucked up in it removed and furnace fired right up and now is back up an running.

Near Cherry St, Downingtown, PA 19335
Luis T.

Luis T.

No heat again, same problem pressure switch, found snow in the intake, recommended extending intake pipe and add 45 into flue pipe, customer ok after repairs combustion test on heater ok

Near Honeymead Rd, Downingtown, PA 19335
Luis T.

Luis T.

Could not get the thermostat to reset all settings, installed new thermostat and set up settings to 2 stage cool and electric back up. Fan to auto would run 10 mins of an hours customer can change those settings, test system ok

Near Barbara Dr, Downingtown, PA 19335