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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 181-192 of 200 services

Rooftop Unit Economizer Service service
CommercialRepair

Rooftop Unit Economizer Service

Diagnose, repair, and verify supported rooftop-unit economizer controls and dampers.

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Seasonal HVAC Readiness service
Property ManagementMaintenance

Seasonal HVAC Readiness

Prepare managed HVAC systems for heating and cooling seasons.

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Smoke and Carbon Monoxide Detector Installation service
ResidentialCommercialInstallation

Smoke and Carbon Monoxide Detector Installation

Install and replace supported smoke and carbon-monoxide detection equipment.

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Standby Generator Installation service
ResidentialCommercialInstallation

Standby Generator Installation

Plan and install standby power equipment for approved properties.

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Tank Water Heater Installation and Service service
ResidentialSupport

Tank Water Heater Installation and Service

Install and service conventional residential tank water heaters.

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Thermostat Installation and Repair service
ResidentialSupportInstallation

Thermostat Installation and Repair

Install, configure, and repair residential thermostats and HVAC controls.

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Unit Turnover HVAC Inspection service
Property ManagementSupport

Unit Turnover HVAC Inspection

Inspect HVAC condition and operation between tenant occupancies.

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UV Air Purifier Installation and Service service
ResidentialCommercialInstallation

UV Air Purifier Installation and Service

Install and service supported HVAC UV air-treatment equipment.

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Vacant Unit HVAC Winterization service
Property ManagementMaintenance

Vacant Unit HVAC Winterization

Prepare supported heating, cooling, water-heating, and control systems for vacant-unit cold-weather risk.

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Variable-Speed HVAC Upgrade service
ResidentialCommercialReplacement

Variable-Speed HVAC Upgrade

Upgrade to variable-speed equipment for steadier comfort and efficient operation.

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Warehouse and Industrial HVAC Service service
CommercialSupport

Warehouse and Industrial HVAC Service

Maintain HVAC and ventilation for warehouses and demanding commercial environments.

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Whole-Home Dehumidifier Installation and Service service
ResidentialSupport

Whole-Home Dehumidifier Installation and Service

Install and service supported whole-home dehumidifiers and drainage components.

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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!