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HVAC, electrical, and building services

Services for homes, businesses, and managed properties

Explore installation, repair, maintenance, efficiency, and electrical services across Massachusetts.

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Service categories

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Commercial HVAC services

Commercial HVAC

Commercial heating, cooling, ventilation, controls, maintenance, and replacement support for occupied buildings and facilities.

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Electrical Services services

Electrical Services

Licensed electrical troubleshooting, upgrades, circuits, controls, and equipment connections for residential and commercial properties.

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Service catalog

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Showing 169-180 of 200 services

Portfolio HVAC Efficiency Planning service
Property ManagementConsultation

Portfolio HVAC Efficiency Planning

Identify practical efficiency upgrades and replacement priorities across properties.

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Priority Response HVAC Support service
Property ManagementSupport

Priority Response HVAC Support

Provide dedicated routing and faster response for managed-property HVAC requests.

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R-410A HVAC Service service
ResidentialCommercialSupport

R-410A HVAC Service

Diagnose and service supported R-410A air-conditioning and heat-pump equipment.

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Receptacle and GFCI Installation and Repair service
ResidentialCommercialRepair

Receptacle and GFCI Installation and Repair

Install, replace, and troubleshoot receptacles and GFCI protection.

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Refrigerant Service Records for Managed Properties service
Property ManagementSupport

Refrigerant Service Records for Managed Properties

Organize equipment, refrigerant, repair, and follow-up information for supported managed-property HVAC service.

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Residential Duct Leak Diagnosis service
ResidentialConsultation

Residential Duct Leak Diagnosis

Identify accessible duct leakage and airflow-loss conditions affecting comfort and efficiency.

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Residential Duct Sealing Service service
ResidentialRepair

Residential Duct Sealing Service

Seal supported accessible duct leakage to improve delivered airflow and reduce conditioned-air loss.

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Residential Ductwork Installation and Repair service
ResidentialRepair

Residential Ductwork Installation and Repair

Install, repair, and improve residential ductwork for balanced airflow.

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Residential HVAC Airflow Balancing service
ResidentialSupport

Residential HVAC Airflow Balancing

Measure and improve room-to-room airflow through supported adjustments and system recommendations.

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Residential HVAC Replacement Consultation service
ResidentialConsultation

Residential HVAC Replacement Consultation

Evaluate existing equipment and plan a practical home HVAC replacement.

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Restaurant HVAC Service service
CommercialSupport

Restaurant HVAC Service

Service restaurant heating, cooling, ventilation, and comfort systems with operational coordination.

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Rooftop Unit Curb and Transition Coordination service
CommercialSupport

Rooftop Unit Curb and Transition Coordination

Coordinate supported rooftop replacements that require curb adapters, transitions, access planning, and weatherproofing interfaces.

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Our Happy Customers

Henry H.

Replace batteries in thermostat, checked furnace

Jenny W.

Great service! On time, knowledgeable & professional

Ray

Just had a service call because my tankless water heater stopped working with E110 code. Andrey located the root cause real quick and fixed the issue within half an hour, also gave reasonable recommendations for further maintenance.

Randy J.

Thanks to Andrey for an amazingly quick response to my request for a service call. He diagnosed and fixed my issue within 24 hours of my asking for help. Excellent service. Thanks.

Rajib M.

Andrey from Green Flow came out exactly when he said he was going to and fixed a simple problem with the heating system at my rental property. Really appreciate the quick turnaround and fair pricing.

Valni D.

I’m delighted. Andrey the technician came on time and found the problem. They charged me fairly price.We thinking about hiring the company to maintain.

Connie F.

I needed a thermostat installed. I called one day they were there the next day. Installed the thermostat and made sure it was working before they left. Came back the next day because no heat was coming out the vents and fixed that issue. No problems since. Thanks...

Jahangir R.

They were very organized to communicate and be on time to come to look at my air condition to fix it.

Atrian I.

Maintenance and repair A/c unit.

Enrique B.

Tankless water heater failed . I contacted Green Flow and Aundrey was dispatched. He arrived on time diagnose the issue and called the manufacturer eventually they agreed to replace the unit. Within a few days a new unit was installed and hot water was restored. Service was fast...

Yakov S.

I had an excellent experience with Green Flow, they were available to replace my dead central A/C unit on a short notice, and the price was thousands of dollars less than what I got quoted by two other companies. I would definitely use them again.

Gilberto C.

Great service. It was awesome that they were able to solve my heating issue in few hours. Love the transparency on the pricing. Andrey was great!