George Y.
11/18/2020
Mark Degroffs is CLOSED. Best in the Business Buddy. Enjoy your well deserved retirement. God Speed my Friend
De Groff's Mark Cylinder Head Service
Open
(5)
18736 Parthenia St Unit 2
Northridge, CA 91324
De Groff's Mark Cylinder Head Service, located in Northridge, CA, is a reputable machine shop known for its expertise in repairing cylinder heads on engines.
Owned and operated by Mark De Groff, the business invites potential clients to reach out for further details on their services.
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Also at this address
Reviews
5.05 reviews
Peter h.
10/28/2011
Mark has saved my **s on more than one occasion. Both he & Kent are knowledgeable and methodical and accurate. They have both taken care of my "bodges" and the other more logical things like...
Eric B.
4/7/2011
I have to agree with the first reviewer. Mark's work has always been top notch, I've been using his services for years as well.
I S.
11/11/2015
This shop is definitely not closed. Mark can be hard to reach sometimes but the quality of work performed is well worth the wait.
Robert B.
3/15/2010
One of THE BEST machine shops in LA. I have given him $1000s of work over the years. Great person to work with, very precise. A real 'old school' perfectionist.
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