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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 97-108 of 200 services

Multi-Site HVAC Repair Support service
Property ManagementRepair

Multi-Site HVAC Repair Support

Coordinate diagnosis and repairs across multiple buildings and equipment locations.

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Portfolio HVAC Preventive Maintenance service
Property ManagementMaintenance

Portfolio HVAC Preventive Maintenance

Schedule recurring HVAC inspections and maintenance across managed properties.

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Property HVAC Leak and Drain Response service
Property ManagementRepair

Property HVAC Leak and Drain Response

Coordinate HVAC condensate, drain, pump, and equipment-leak response for managed properties.

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Property Management Emergency HVAC Response service
Property ManagementEmergency

Property Management Emergency HVAC Response

Prioritize urgent heating and cooling failures across managed properties.

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Public Building and Municipal HVAC Support service
CommercialSupport

Public Building and Municipal HVAC Support

Coordinate HVAC replacement, service, and documentation for public-use buildings.

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R-454B and A2L Refrigerant HVAC Service service
ResidentialCommercialSupport

R-454B and A2L Refrigerant HVAC Service

Service supported newer HVAC equipment that uses R-454B or other applicable A2L refrigerants.

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Refrigerant Line-Set Leak Repair service
ResidentialCommercialRepair

Refrigerant Line-Set Leak Repair

Diagnose and repair supported refrigerant line-set leaks, then verify and restore the sealed system.

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Residential HVAC Maintenance Plans service
ResidentialMaintenance

Residential HVAC Maintenance Plans

Scheduled tune-ups and inspections for home heating and cooling equipment.

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Rooftop Unit Compressor Service service
CommercialRepair

Rooftop Unit Compressor Service

Diagnose rooftop-unit compressor faults and evaluate repair, warranty, or replacement options.

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Rooftop Unit Installation and Replacement service
CommercialInstallation

Rooftop Unit Installation and Replacement

Coordinate rooftop equipment replacement, placement, connections, and startup.

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Rooftop Unit Not Cooling Repair service
CommercialRepair

Rooftop Unit Not Cooling Repair

Diagnose commercial rooftop equipment that runs without delivering expected cooling.

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Rooftop Unit Not Heating Repair service
CommercialRepair

Rooftop Unit Not Heating Repair

Diagnose commercial rooftop equipment that does not provide expected heating.

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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!