Called for a regular steam heater maintenance. Didn't even clean the low water cutoff probe. I compared the quality of work with others on the Youtube, big difference in terms of quality. Not recommended. read more

First of all, they responded to my request super quickly, made their schedule available and flexible, that took our anxiety off our shoulders right away :) On the scheduled day, gentleman who's name is Andrey came for our rescue. He was communicative, on time, just a great person overall. He is also right on point, no bull. His diagnoses were thorough but quick, and he's got to work immediately. He found all the faulty jobs the previous contractor did, made everything work properly. He was working with their plumbing specialist via phone camera to look over everything physical, as he is a HVAC technician - which he was tremendously, tremendously knowledgeable. I can not thank him and Green Flow Solution enough for their fantastic ability, these guys are a real deal. Oh, did I mention they were very reasonably priced? We will be calling them for our every heater/HVAC/plumbing /AC needs in the future!! read more

Responded late in evening to a reach out about HVAC heat going out urgently. Offered first thing in the AM early appointment, showed up on time with good communication, fixed the problem in under an hour, and educated me about the situation. Professional and reliable. Very nice UI for scheduling appt and invoice/payment. read more

Contacted Green Flow on Sunday, and they were in on Monday morning to fix my boiler. They had great communication via phone and text, and were on time when they said they would arrive (10am). My boiler was fixed in 1.5hrs, replacing the water pump and thermocouple, and the bill was reasonable. I'm very satisfied with the results. read more

Andrey is a great technician. He was incredibly respectful of our home, and he worked efficiently to complete the service.Green Flow Solution scheduled us easily. I didn't have to wait days for a call back. I highly recommend. Our system is running well. Thank you! read more

Great experience with Green Flow Solution. Audrey came out next day and fixed an issue with my HVAC unit that I thought would be a massive issue! Thank you Audrey and Green Flow for the great experience. read more

From start to finish they were great. Quick response , assistance and timely appointment prompt. Andrey was knowledgeable and thorough! They will be my homes HVAC maintenance company! Thank you Thank you read more

Green Flow was absolutely amazing. We had an issue with an old boiler where we were trying to replace multiple parts (circulation pump, blower motor, etc.). Andrey came, quickly and accurately identified the issue, saved us from unnecessary repairs! He placed us on the right path and changed only what was needed. Also, he was on time as scheduled, and came out despite being a rainy holiday. Andrey/Green Flow was honest, knowledgeable, professional, and well priced. We definitely would go to him again for our HVAC needs! I wonder if they do regular plumbing, too... read more

Once again called Green Flow to provide maintenance for my A/C . Same experience--reasonable price, updated me on arrival, showed up on time...maintained the A/C and on their way . if you live in the South End in Boston you should call these folks read more

Green Flow used tactic of booking an early appointment without sending the plumber the day and delayed dispatch the next day. The plumber was a no show for the first day and late 2 hrs next day. The plumber arrived 10 min to 2PM and opened the boiler chamber and found that the heat exchanger and exhaust pipe needed cleaning Since the plumber (likely a subcontractor) had his truck in shop, he was gone to purchase tools in Watertown for 2 hours (2pm-4pm) . After he assembled the shop vac (9 gal) he purchased(for 15 minutes), he worked less than 2 hours till 6pm. Hanna of the office sent a bill for $620 with no itemization, no prior estimate or no hourly rate, especially when the diagnosis and the scope of the work was determined upon arrival. The plumber was likely called for the job while he was at roofing job since he came in a roofing truck. Mostly importantly, the plumber Tim failed to contain the soot dust by using an inapproprite shop vac (4-5 Gal) instead of soot snoot vaccum. As Tim who loosened soot with a brush with his right hand, he collected only half of the dust generated with wide attachment of the small shop vac with left hand. My husband started cleaning the floor as soon as Tim left with a mop and rags for 3.5 hours with no break or supper from 6PM till 930 PM. My husband's lungs were exposed to the concentrated sticky soot dust particles a known carcinogen for almost 5.5 hours that night. When my husband came up to take a shower, he looked like a coal minor from a coal mine and left foot steps of soots all the way to the second floor. Please never let your plumber use an ordinary shop vac to collect soots from an oil furnace. An ordinary shop vac is not to be used for soot cleaning. Some use it with water and some use Large sized shop vac. Tim did none of it. In fact he even took off the filter from the unit. While my husband was watching him entire time, fine dust of sticky soot known to cause lung cancer contaminated air and everything in the entire finished basement. Hire Green Flow to clean your oil furnace if you don't mind contamination of your home and your family's lung with carcinogen at hefty cost of $620 for less than 2 hours during which he changed filter and cleaned the nozzle as in annual maintenance. read more

Two contractors came as scheduled and did a great job in completing the installation of my new air conditioner. They worked through every difficulty in removing my old air conditioner and installing the new one until the project was complete. The A/C is working great. I'm looking forward to enjoying it this summer and beyond. read more

Thank you Green Flow Solutions for getting my hot water heater replaced and running again. Everything went better than expected from initial booking to final completion this company is wonderful. Audrey a special thank you to you for doing such a great job ,I highly recommend you and your company. read more

Andrey was amazing. He shows up faster than nearly anyone, always on time and very professional: any weather, any day of the week. It is exceptional. A lot of times when we hire these types of professionals there is always some level of skepticism on the value of their service. But not Andrey. He tries to fix everything as efficiently as possible with an eye on your bottom line and yet properly, for the long haul. He even tells you which part to order so you know exactly how much the parts cost (vs others where they give you one price and won't tell you the cost for labor vs parts). Most importantly, he tries to actually understand the root problem rather than some more general and likely more expensive fix. Really appreciate the transparency and also the exceptionally high level of service. read more

Very responsive. Got here quick, fixed the problem, and provided helpful overall guidance. A very good resource. Thanks!!

They came the same day to fix a furnace leak and charged a fair price. I'd definitely recommend them!

They were fine, professional, honest, and got the job done. Audrey made sure, over the course of a few days, that he had made the correct diagnosis before replacing any parts. Communication by text was impeccable. read more

Fast response and were able to come the same day! Our tech was great, service was priced fairly and communication was great. Loved the ease of paying online. read more

Repaired my AC very quickly! Thank you! Hanna arranged a same-day appointment and the technician fixed everything on site!

Or furnace completely stopped working just as we entered into a cold snap AND we had out of town family visiting for the weekend. Our inside temps got down to the low 40s. The company we had been working with for years took their time in responding, told us the control board was fried and would be $1000 to fix before they could then determine if there were any additional problems and it would take several days for the part to arrive, and strongly suggested we replace the whole system and continue to go without heat for over a week before they could do so. I called Green Flow for a second opinion and they came out immediately (Andrey was actually even earlier than they estimated he could get there). He fixed the furnace easily in a matter of minutes with $0 in parts. Turns out it was a loose wire and 10 minutes into his visit my house was warming up again (after 4 days at this point of no heat). I could not be more impressed with the urgency they acted under, the professionalism and respect they gave us in our home, and the competence with which the situation was handled. read more

They can within hours, replaced my water heater, great work. A good deal for a Saturday call.

Good service, reliable and respectful. They even removed their shoes when going upstairs.