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January 2024 by Diane Asselin
Roger is the Best! He arrived on time, went right to work, explained and showed me where the issues were and what could be done to fix. * Boiler is over 30+ years old and has lots of problems. He fixed what was most important to get us heat and even phoned my husband with all the info. Thank you and will certainly do business with McDonnell again.
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December 2023 by Mattew Andre
Fantastic to work with. Very knowledgeable and responsive
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February 2023 by Sari Germanos
These guys installed a Mitsubishi heat pump as my HVAC unit. Their installation was flawed. They used wrong components and wrong thermostats that are not compatible. Less than a year later the unit stopped working an they could not fix it.Even though the product had a 5 year warrantee they wanted to charge me $2500 for working on it and not fixing the problem.I ended up using HomeServe to fix my unit.I’ll never call this outfit again!Services: Install AC
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December 2022 by Charleen Greenhalgh
Quick response to our no heat and hot water call. Fixed the problem.
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July 2022 by Peter Williams
Great company to hire anytime we had a problem ,they were there asap,would explain everything before doing the job,very friendly workers and we are very happy we chose them,can"t go wrong
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June 2022 by Kyle Norman
They do a good job.
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March 2022 by Nate Church (Outside Cleaners)
I’m a repeat customer because it’s a well-run business with professional people doing quality work.Services: Heating system maintenance
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January 2022 by Scott Harman
Which response to make a needed repair.
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December 2021 by Jen Mylett
Any company that comes out and fixes any problem on Christmas Eve is definitely worth 5 stars! We had zero heat today until they came!! House is warm and toasty on this chilly Christmas Eve. Thank you!
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October 2021 by K P
Jim and his team are the best on the Cape. I have dealt with McDonnell Mechanical for installing a furnace, ductless heating/ac systems and a same day emergency replacement of a hot water heater. They are the best and Jim is as honest as they come. I recommend McDonnell Mechanical to all my friends and family. As I type this, they are here taking the time to vacuum my floors after an AC service today. You don't see that everyday from most contractors. Use Jim and his guys, you won't regret it.Services: AC installation
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September 2021 by Mark Iamonaco
Quoted 4 times the hours that the job should have taken and the labor cost was 500% of the provider that we ultimately used.
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June 2021 by Grant S.
We had an awesome experience with Jim from McDonnell. Our AC went out in the middle of this heat wave. Our landlord called and McDonnell sent Jim out this morning (on very short notice). He spent the last 3 hours troubleshooting what turned out to be a complex electrical issue that impacted the HVAC and ultimately figured it out and fixed the issue. Insanely professional, polite and proactive. Thank you.
