PO Box 541074
Waltham, MA 02454
7817208137

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Local Reviews

Rated 5.0 out of 5 stars based on 241 customer reviews

Commitment to the Fix

Out hot water was not operating and CCL sent out Mike. He roots out a problem to its core and doesn't just look at things for face value to fix the problem. I always know when he is on a call that the issue will be solved completely.

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FANTASTIC !

Will recommend CCL Mechanical to all.

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Great service

Very helpful and friendly

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Friendly and efficient service!

Mike let me know when he was en route and arrived promptly at our appointment. He was friendly and instructional as he diagnosed our water pressure issues and taught me how to troubleshoot this issue if it happens in the future.

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Great Service

Mike, from CCL Mechanical, diagnosed and fixed our problem with great care. He is polite, courteous and took extra time to explain what he was doing. I highly recommend CCL.

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Uber service

Your team led by Chris and Seamus were quick to respond, very knowledgeable, experienced, focused, tidy, worked quickly and efficiently during the installation of our new Rinnai hot water system and, last but not least very friendly. I am also impressed with your training on each of the products that you support which we have in our home including Rinnai, Ecobee and Trane. I would not hesitate to recommend your services.

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Terrific service

The service professional was determined to solve an elusive problem with our heating system. He persevered, coming back for 3 days until it was repaired!

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Michael K from CCL

Mike was invaluable in diagnosing and repairing the leak in my hot water heater. Calling the office and setting up an appointment was easy. Mike provided service in a timely and professional manner. And just in time, given the snow and cold!

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Great service

CCL Mechanical consistently provides service that goes above and beyond the rest. They come when scheduled and always clean up from the work that they do. I highly recommend them!

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Annual Service of Tankless Water Heater

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Job Locations

Seamus C.

Seamus C. Job Checkin

Quote fix a leaking boiler


Michael K.

Michael K. Job Checkin

Replaced warranty part, Rinnai hot water heater


John S.

John S. Job Checkin

Replace steam radiators

Replace steam radiators

Michael K.

Michael K. Job Checkin

Bathroom remodel


John S.

John S. Job Checkin

Install combo water heater

Install combo water heater

Thiago L.

Thiago L. Job Checkin

Bath tub install, bathroom sink, toilet install, shower head, shower valve install


Michael K.

Michael K. Job Checkin

Rinnai repair


Seamus C.

Seamus C. Job Checkin

Installed a new filtration systems protect their home health and tankless water heater


John S.

John S. Job Checkin

Install navion combo

Install navion combo

Seamus C.

Seamus C. Job Checkin

Installed a new hot water and heating system as well as A\C and a humidifier system.


John S.

John S. Job Checkin

Fixed pipe

Fixed pipe

Michael K.

Michael K. Job Checkin

Rinnai tankless water heater maintenance


John S.

John S. Job Checkin

Put gas and water thru deck

Put gas and water thru deck

John S.

John S. Job Checkin

Cutting in laundry

Cutting in laundry

Michael K.

Michael K. Job Checkin

Replace clothes washer hose connection valve