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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 Energy Efficiency services

Showing 1-12 of 86 services

AHRI Certificate Matching Support service
ResidentialCommercialSupport

AHRI Certificate Matching Support

Match supported indoor and outdoor equipment combinations to AHRI certification records for planning and documentation.

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Boiler Installation and Replacement service
ResidentialInstallation

Boiler Installation and Replacement

Install or replace hot-water and steam boilers for consistent home heating.

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Building Automation and HVAC Controls service
CommercialSupport

Building Automation and HVAC Controls

Service building automation, thermostats, sensors, and HVAC control systems.

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Building Automation System Troubleshooting service
CommercialRepair

Building Automation System Troubleshooting

Diagnose supported HVAC building-automation alarms, schedules, sensor inputs, and equipment communication issues.

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Central Air Conditioning Installation service
ResidentialInstallation

Central Air Conditioning Installation

Install central AC equipment matched to the home's cooling and airflow needs.

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Cold-Climate Heat Pump Conversion service
ResidentialReplacement

Cold-Climate Heat Pump Conversion

Plan and install a cold-climate heat-pump conversion for Massachusetts homes.

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Commercial Boiler Service service
CommercialSupport

Commercial Boiler Service

Repair, maintain, and plan replacement for commercial boiler systems.

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Commercial Heat Pump Installation and Service service
CommercialSupport

Commercial Heat Pump Installation and Service

Install and service commercial heat-pump systems for efficient building comfort.

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Commercial HVAC Design and Installation service
CommercialInstallation

Commercial HVAC Design and Installation

Assess, design, and install commercial HVAC systems for building requirements.

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Commercial HVAC System Replacement service
CommercialReplacement

Commercial HVAC System Replacement

Plan and complete commercial HVAC replacement with coordinated scheduling and startup.

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Dual-Fuel Heat Pump System Installation service
ResidentialInstallation

Dual-Fuel Heat Pump System Installation

Combine a heat pump with backup heat for efficient cold-weather comfort.

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Ductless Mini-Split Installation service
ResidentialCommercialInstallation

Ductless Mini-Split Installation

Install single-zone or multi-zone mini-splits for targeted heating and cooling.

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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!