PO Box 541074
Waltham, MA 02454
7817208137

Local Reviews

Rated 5.0 out of 5 stars based on 211 customer reviews

Knew Exactly What was Wrong and Fixed the Problem

Jared and crew were exceptional to deal with. Besides being personable and easy to talk with, they diagnosed the problem and got the appropriate part and fixed it right the first time. We were impressed with their plumbing credentials, professionalism and diagnostic acumen. Top-notch experience.

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Always helpful, on time, and great service!

CCL has always been great. Easy to make appointments, on time, helpful professionals for installation and servicing. I wholeheartedly recommend CCL!

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Fantastic and knowledgeable service!

Loved the energy and information that Jared brought to the job. Thank you!

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Great service

Ken was great

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Great Service

I reached out to Ken after hours at his home to help me get in touch in Building 36 to re-synch my hub with Building 36 main-hub. He was very professional and extremely helpful. He suggested we try a couple of quick resets, which helped with the app communicating with the thermostats, but the syncs part still needed a call by him to Building 36. He reached out to them right away, got it fixed and called me back with the news. He also let me know that if my thermostat system wasn’t working by the morning, to call him back. I was all set within an hour and super pleased. This is second experience with Ken. He’s been awesome both times. I’d recommend CCL Mechanical to everyone, largely because of employees like Ken.

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Hot water heater

Great job

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Friendly and convenient

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Great service

We had our Rinnai tankless hot water system serviced, and explained all the work to me. Great service. Worth the cost to have a manufacturer certified professional do the work.

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Great experience!

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Great Service

Great service, efficient repair and knowledgeable technician.

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Job Locations

Stephen F.

Stephen F. Job Checkin

Install of goodman air conditioners


John S.

John S. Job Checkin

Roughing 4 story brownstone

Roughing 4 story brownstone

John S.

John S. Job Checkin

Roughing out 4 story brownstone


Stephen F.

Stephen F. Job Checkin

Install of central air conditioning


Michael K.

Michael K. Job Checkin

Install Omni panels towel warmers and radiator combo


Jared F.

Jared F. Job Checkin

Ac repair


Jared F.

Jared F. Job Checkin

Rinnai water heater repair


John S.

John S. Job Checkin

Roughing 4 story brownstone


Michael K.

Michael K. Job Checkin

Tile bathroom floor


Michael K.

Michael K. Job Checkin


Stephen F.

Stephen F. Job Checkin

Repair of central air conditioner


Jared F.

Jared F. Job Checkin

Laundry safety valve installation

Laundry safety valve installation

Stephen F.

Stephen F. Job Checkin

Estimate of central air conditioning amd mini split heat pump


John S.

John S. Job Checkin

Roughing 4 story brownstone

Roughing 4 story brownstone

John S.

John S. Job Checkin

Install boiler vent

Install boiler vent