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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

Browse Residential HVAC services

Showing 49-60 of 120 services

HVAC Electrical Connections service
ResidentialCommercialInstallation

HVAC Electrical Connections

Provide electrical connections and coordination for HVAC installation and replacement.

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HVAC Electrification Consultation service
ResidentialConsultation

HVAC Electrification Consultation

Plan a practical transition from fossil-fuel HVAC to electric heat-pump systems.

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HVAC Energy-Efficiency Assessment service
ResidentialCommercialConsultation

HVAC Energy-Efficiency Assessment

Review HVAC performance, comfort, controls, and upgrade opportunities.

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HVAC Filter Replacement and Filtration Upgrade service
ResidentialCommercialMaintenance

HVAC Filter Replacement and Filtration Upgrade

Replace supported filters and evaluate filtration upgrades matched to equipment airflow requirements.

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HVAC Load Calculation and Equipment Sizing service
ResidentialCommercialConsultation

HVAC Load Calculation and Equipment Sizing

Evaluate building loads and system requirements to support correctly sized HVAC replacement or conversion planning.

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HVAC Refrigerant Leak Detection service
ResidentialCommercialRepair

HVAC Refrigerant Leak Detection

Locate refrigerant leaks in heat pumps, air conditioners, and ductless systems using appropriate diagnostic methods.

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HVAC Refrigerant Leak Repair service
ResidentialCommercialRepair

HVAC Refrigerant Leak Repair

Repair verified refrigerant leaks and prepare the system for evacuation, verification, and correct charging.

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HVAC Refrigerant Recharge After Leak Repair service
ResidentialCommercialRepair

HVAC Refrigerant Recharge After Leak Repair

Evacuate and recharge supported HVAC equipment after leak diagnosis and completed repair.

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Indoor Air Quality Solutions service
ResidentialCommercialConsultation

Indoor Air Quality Solutions

Improve filtration, purification, ventilation, and indoor air quality at home.

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Leaking Boiler Repair service
ResidentialRepair

Leaking Boiler Repair

Identify the source of visible boiler or hydronic-system water leakage and plan a safe repair.

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Low Refrigerant Diagnosis service
ResidentialCommercialRepair

Low Refrigerant Diagnosis

Evaluate suspected low refrigerant, confirm system conditions, and identify whether a leak or another fault is present.

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Managed Property HVAC Filter Program service
Property ManagementMaintenance

Managed Property HVAC Filter Program

Plan, schedule, inventory, and document filter replacement across managed buildings and units.

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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!