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410-747-1900 Thank you! 




Bill's Repair Facility headed by Ron Cook has been proud to service the instruments and equipment of east coast musicians since 1965. Along with our Electronics Repair tech Gib, the reputation of our service technicians is second to none when it comes to quality repair work, price-value and turn-around time. All repairs come with a 30-day warranty on the service that was performed. The shop is open during store hours with two technicians ready to quickly and professionally get your instrument in top playing condition:


Since 1965, Ron Cook
has been repairing musical instruments here at Bill's. Here, Ron is pictured
executing his signature Supertune which consists of the following:
-adjust the truss rod in the neck
-adjust the bridge for height and intonation
-tail piece or tremolo adjustment
-height adjust the nut for first position action
-tighten and clean all electronics, tuning gears, pickups
-clean and polish instrument
If you have any questions about instrument repair feel free
to call Ron at 410-747-1900 or email him at



Gib Owen has been working alongside Ron since 1996
here at Bill's and specializes in the repair of electronic equipment.
If you are having trouble with keyboards, drum machines,
pro sound equipment, recording or dj gear, Gib's your man!
If you have any questions regarding electronics repair,
feel free to call Gib at 410-747-1900!
Or email him anytime at




Customer Reviews:


Just wanted to say thanks Bills Music for being an upstanding business in our community! Ron Cook is the best and my instruments have never sounded better! ~ Scotty V.

I brought my Epiphone Masterbilt Acoustic Electric Guitar to your company for some electronic pre-amp work and have a SUPERTUNE. I must say RON COOK is the best guitar specialist repair tech in Maryland. After one year with Epiphone guitar company that could not find the probelm with the eSonic2 per-amp, Ron found and fixed the problem on my first visit to Bills Music House. Ron Cook's SUPERTUNE is the best guitar setup in the UNITED STATES. Ron Cook is second to none in guitar setup. I am so pleased with the work your company has provided. Thank you Ron Cook!
~ Marty C.

Just wanted to say that Ron did an awesome job on replacing my pickups and super tuning my Stratocaster, the guy's an artist! As a matter of fact, I'm bringing my other Strat in to have the same thing done. Thanx Ron, you are the MAN!

Bill's Music Service Department: You guys are the best. I guess that's why I drive from harford county to get there. Thank you for giving me 33 years of quality sales and service.
~ Dave R. Owner, Club 66

I gave my peavey gps 2600 amp a workout tonight...all was perfect. no red blinky lights and no smell of burnt guys do a hell of a job and give me good service. That is RARE!! Keep up the good work!
~ Chris S.

Ron is the only one I let work on my guitars. I come all the way from the eastern shore for him to work on them.
~ Mark Z.

EXCELLENT guitar repair department, Ron is a top of the line repair guy!
~ Theresa K.

 I dropped off a guitar for repairs - Ron & Gib have been taking care of my guitars for a long time and do fantastic work - and on my way out spotted a used Telecaster that I just had to check out. Ernesto set me up with an amp that he probably knew would bring out the best in the Tele, and a half hour later I made what wasn't my first impulse buy at Bill's. They've got a great selection of new and used guitars and amps, so it's bound to happen now and then.
~ Gary M.

I have recently purchased 2 guitars from Bill's Music. Sales rep, Nino, is always very helpful and most knowledgeable Ron, in the service department, also gets an A+ for keeping my instruments in perfect playing condition. The staff at Bill's is a main reason I have been returning time and again for over 30 years!
~ Joe D.

Bills Music is a staple music store in the area, as well as rendering great customer service. Ernesto and all the staff are like family. The repair team , Ron and Gibb, are also outstanding! Thank you Bills Music for all you do for the community.
~ Jesse P.

luthier Ron is a god among men
~ Jibber R.

Just picked up my Fender Stratocaster today that I was going to sell because it just would not play right. Took it to Ron Cook for a Supertune and it plays AMAZING up and down the neck. It was a gift from my wife so I would have felt bad selling the guitar but it was driving me crazy.. Now I don't have to sell it thanks to Ron. A++++++
Rodney E.

Always a great visit. I've been a customer for 20+ years. Ron & Gibb get the PA repairs done right. Mikey, Matt, and the rest of the floor staff are friendly and knowledgeable. Brian, Tracey, Jamie and the rest of the front-of-house team round off the polished experience. Definitely worth stopping in!
~ Mike G

Incredible tech services for amps and instruments. Ron is an institution!
~ David G.

I have been going to Bills for over 20 years for guitar setup. Ron and the guys in serivce are great. I wish Bills was in NC.
~ Jamison L.

They setup my fender cs60 and its playability is outstanding, they are doing my humminbird now and i expect similar results. The only shop i would trust in Baltimore.
~ Colin D.

Bill's is great. Ron's super tune is the best setup anywhere. I won't have anyone else setup my guitars. He really works the magic. Highly recommend. Also great gear selection! Great place to satisfy your gear acquisition syndrome
 ~ x534n01

I would like to take a moment to say thank you to Bill’s Music for making the experience of buying a bass guitar so enjoyable. I originally went into Bill’s to bring in an old 5 string Washburn that I had that needed a tune-up. Mr. Ron was the consummate gentleman with a keen eye to my bass needed. When I left the repair department, I was in such a positive way that I could not help but to be taken with a Dean Tiger’s-Eye 4 string. I did not get the names of the three different people that helped pull it down, plug it in and allowed me the time to check it out but all were well versed in the equipment that they sold. After a short time I realized that it needed to come home. When the sale was completed I took the bass by repairs to show Mr. Ron my new toy. He put down the guitar he was working on, went over the Dean with a fine tooth comb and showed me many things that I did not know. I was amazed by how fast and accurate he was. In many ways Bills sets itself as the music bar for sales that others try to meet. I and many other musicians from the Metropolitan area know that this is true but when it comes to repairs, no one will ever hold a candle to you.
~ George H.