Medford Wellington provides comprehensive heating, air conditioning, refrigeration, sheet metal, plumbing and electrical services to commercial and residential clients in Waltham, MA.

We are available for service 24 hours a day. Read our reviews and find out why your neighbors consider us to be their nearby heating and air company and local plumber in Waltham, MA.

Local Reviews
for Waltham, MA

Our Reviews by City



James A.

James A.

Commercial refrigeration repair of a True reach in freezer running warm. Discovered failed starting components. Commercial refrigeration install of new starting components. Tested operation.

Near Lexington St, Waltham, MA 02452
Patrick H.

Patrick H.

Commercial HVAC repair of a Carrier chiller system not cooling. Discovered a failed temp sensor. Commercial HVAC install of a new temp sensor. Tested operation.

Near Waverley Oaks Rd, Waltham, MA 02452
Michael B.

Michael B.

Commercial HVAC repair of a Carrier rooftop unit not cooling. Discovered a failed evaporator coil freeze stat. Commercial HVAC install of a new freeze stat. tested operations.

Near High St, Waltham, MA 02453
Mark S.

Mark S.

Commercial refrigeration repair of a Manitowoc ice machine not producing ice. Discovered the ice deflector was not making full contact with the sensor after a batch of ice was produced. Commercial refrigeration install of a new ice deflector.

Near Market Pl Dr, Waltham, MA 02451
Bob S.

Bob S.

Commercial HVAC repair of a York rooftop unit operating with a loud noise. Found that the motor pulley was worn and it cause the belt to flop around. Commercial HVAC install of anew motor pulley and belt.

Near Lexington St, Waltham, MA 02452
Bob S.

Bob S.

Commercial refrigeration on a Norlake walk in cooler running warm. Discovered several leaks of refrigerant in the evaporator coil. Commercial refrigeration install of a new evaporator.

Near Winter St, Waltham, MA 02451
Landon M.

Landon M.

Commercial refrigeration repair of a Traulsen 2 door reach in cooler running too cold. Discovered a failed evaporator sensor. Commercial refrigeration install of a new evaporator sensor.

Near Trapelo Rd, Waltham, MA 02452
Dave R.

Dave R.

Commercial refrigeration repair of a Hoshizaki Ice Machine not producing ice. Discovered that the carbon water filters were clogged. Commercial refrigeration install of two new carbon water filters. Unit is operational.

Near Lexington St, Waltham, MA 02452
Senad D.

Senad D.

Commercial HVAC repair of a York rooftop unit making noise. Found that the blower wheel was out of balance. Commercial HVAC install of a new blower wheel, shaft, bearings and pulley.

Near Main St, Waltham, MA 02451
Donald G.

Donald G.

Commercial refrigeration repair for a Kolpak walk in cooler running warm. Found a leak at the receiver on an elbow of the liquid line. Commercial refrigeration install of a new liquid line and filter drier.

Near Winter St, Waltham, MA 02451
Michael A.

Michael A.

Commercial refrigeration repair of a True 4 drawer under grill not cooling. Found a failed temp control stuck open. Commercial refrigeration install of a new temp control.

Near Crescent St, Waltham, MA 02453
Brian C.

Brian C.

Commercial HVAC repair of a Carrier water source heat pump blowing hot air. Discovered a failed reversing valve. Commercial HVAC install of a new reversing valve and filter drier.

Near Wyman St, Waltham, MA 02451
Gregory S.

Gregory S.

Commercial HVAC repair of a Carrier air handler not blowing air. Found a thrown belt due to a overly worn pulley. Commercial HVAC install of a new motor pulley.

Near Trapelo Rd, Waltham, MA 02452
Adam F.

Adam F.

Commercial HVAC repair of a Carrier split system AC not operating. Found that the condensate drain pan sensor failed and locked out the unit. Commercial HVAC install of a new condensate drain pan sensor.

Near Trapelo Rd, Waltham, MA 02452
Senad D.

Senad D.

Commercial HVAC repair of a Carrier Split System Air Handler not operating. Found a failed control board. Commercial HVAC install of a new control board.

Near Trapelo Rd, Waltham, MA 02452
Gregory S.

Gregory S.

Commercial HVAC repair of a Carrier rooftop unit leaking water. Found a broken Ptrap causing improper drainage. Commercial HVAC install of a new ptrap.

Near Black Bear Dr, Waltham, MA 02451
Scott F.

Scott F.

Commercial HVAC repair of a Trane rooftop unit not cooling. Found compressor would not start due to a failed economizer control board. Commercial HVAC install of a new economizer control board.

Near Main St, Waltham, MA 02451
Jonathan P.

Jonathan P.

Commercial HVAC repair of a Trane water source heat pump not cooling properly. Found a failed water actuator. Commercial HVAC install of a new actuator.

Near Trapelo Rd, Waltham, MA 02452
Gregory S.

Gregory S.

Commercial Refrigeration repair of a Bohn walk in cooler not cooling. Found the unit was low on refrigerant. Leak located at the receiver. Commercial refrigeration install of a new receiver.

Near Market Pl Dr, Waltham, MA 02451
Jonathan P.

Jonathan P.

Commercial HVAC repair of a Lennox roof top unit not cooling. Found a failed compressor on stage 2. Commercial HVAC install of a new compressor.

Near High St, Waltham, MA 02453
Gregory S.

Gregory S.

Commercial HVAC repair of a Mitzubishi Split System AC not cooling. Found leaks in the coil of the indoor unit. Commercial HVAC install of a new indoor unit.

Near Forest St, Waltham, MA 02452
Philip R.

Philip R.

Commercial HVAC repair of a Trane roof top unit not cooling. Found a failed EMS control board causing both heating and cooling to operate simultaneously. Commercial HVAC install of a new EMS control board.

Near Lincoln St, Waltham, MA 02451
Bill K.

Bill K.

Commercial refrigeration repair of a Manitowoc Ice Machine not producing ice, Found a Broken Water manifold. Commercial refrigeration install of a new water manifold.

Near Trapelo Rd, Waltham, MA 02452
Ryan W.

Ryan W.

Commercial refrigeration repair of a Hoshizaki ice machine not producing ice and beeping. Found low water flow due to old water filters. Commercial refrigeration install of new water filters.

Near Lake St, Waltham, MA 02451
Gregory S.

Gregory S.

Commercial refrigeration repair of a Kolpak walk in freezer running warm. Found evaporator coils covered in ice due to a failed defrost clock. Commercial refrigeration install of a new defrost clock.

Near Weston St, Waltham, MA 02453