From Google:

Read what my customers are saying,

★★★★★
“My [Steinway “B”] grand piano was badly in need of work. Several technicians had tuned it and offered quotes, but I wasn’t comfortable with them. Then I found Robert. His bid on the work was excellent and his work has been superb. His aural tuning sounds better than any tuning this piano has received. I was repeatedly impressed with Robert’s transparency, honesty, and integrity. He explained the restoration process clearly and in detail and worked with great care and persistence to realize the vision. The action is faster than it has ever been. The piano had developed a brassy quality. Robert reshaped the hammers and voiced the instrument and the tone is uniform and wonderful. The final result is an instrument that is hard to stop playing. I heartily recommend Robert Harker for any piano restoration.”

★★★★★
“Robert Harker is a consummate professional and an artisan dedicated to his craft. Robert’s focused attention to detail transformed a fifty-plus year old Wurlitzer upright into a pleasurable to play instrument. This piano lives in a fifty-five plus community clubhouse with occasional use, but was beginning to show its age. Now it is an instrument we are proud to share with our community.”

★★★★★
“It was my great good fortune that Robert answered my call for a piano tuner. Though I didn’t realize it at the time, my abandoned and moisture-damaged grand was in desperate need of much more than tuning, and required Robert’s wide range of skills to bring it back to life. In addition to voicing, regulation, tuning, replacing parts, and deep cleaning, he polished pitted brass and cleaned the threads on tiny screws. Throughout the two-week process in his shop, I received (horrifying) before and (stunning) after photos of all of his work. My lovely piano is now home, looking and sounding wonderful. Robert is truly a consummate professional and a master of his craft. I can’t recommend him highly enough”

★★★★★
‘Robert is simply on a level of his own – a piano technician who musically understands the instrument. He interacts with the instrument holistically, from the simple tuning of individual notes to the interactive workings of the mechanics/action across the keyboard. 
He came and assessed my baby grand, explaining what could be improved beyond a simple tuning and provided information on what was possible, if additional work on the keyboard action were to be done; a fair estimate for any additional work was also straightforward and upfront. I decided for the minor “overhaul” and the results were black-and-white….phenomenal.
I also found his pricing completely reasonable in relation to the effort and intension he brings to the keyboard. 
If I could give six stars….I would.”

★★★★★
“We had a great experience with a hammer shaping, regulation, and tuning. The pricing was fair, the results were great, and perhaps most important was the communication–we understood everything he did and why, and learned a lot about our piano during the process. Highly recommended!”

★★★★★
“Harker Piano Service was fantastic. He took the time to explain what he was going to do and why. He took his time at getting a perfect pitch. My son came home from school and he took the time to talk to him about the piano and also found out what music he liked to play. If my son didn’t love the piano already he would really love it after talking to him. He loves what he does and you can see it. Thank you again, Robert.”

★★★★★
‘I was so excited to have my piano tuned today by such an expert professional. It was a pleasant experience and I could not have asked for a better tuner. Very personable and he took all the time needed for the job. Very satisfied!”

★★★★★
“We received a piano that contained about 10 slow keys that went thunk thunk and needed some love. Robert did an amazing job and now it’s very responsive and sounds amazing! He left no detail behind and meticulously checked each key, definitely will be using him again.”

★★★★★
“We are thrilled with the piano tuning service provided by Robert Harker. We have a piano purchased by my wife’s parents in the ’60s. She learned to play as a child but the piano has just been sitting for nearly 40 years. For a birthday present to my wife, I wanted to get it tuned so she can play again. But I did not know anything about it and researched tuning and services. Looked into several and was so glad to have found Robert. He is so knowledgeable and “lives” pianos. His work is methodical, deliberate and precise. He analyzed our situation, suggested options and completed the work to our complete satisfaction. The piano sounds great! He is as he presents himself on his website and is the real deal. We will call him for all future tunings”

★★★★★
“What a great experience! The service and attention to detail was fantastic and Robert really knows his stuff. After his tuning and other services, my piano sounds exquisite! Thank you!”

★★★★★
“Mr. Robert was amazing. Very prompt in his responses. VERY knowledgeable and answered all my questions. Extremely professional. Also, Robert went above and beyond by taking time to show my kids (and my dogs) everything. Highly recommend and will definitely be using his service again for future tunes.”

★★★★★
“We have a family piano that had not been tuned for 70 years and Robert did not take any short cuts. He was honest about what was important to make the piano sound its best, and what would only be for aesthetics. We highly recommend Harker Piano Service and cannot wait for our children to learn how to play the piano.”

★★★★★
“Very friendly and professional, did a wonderful job with our piano. Took great time and care. Was very friendly and communicative about the pianos needs and his suggestions. Highly recommend and we plan to use again.”

★★★★★
“I hired Robert to tune my old Wurlitzer upright and was absolutely amazed at the quality of his work: he took an entire day, over 6 hours, to fix, clean and tune it for me. I worked with other technicians before. After hiring Robert, I learned how much the other techs have actually ruined my piano! Robert not only fixed the piano but also explained to me in great detail the mechanism of each part. As a piano teacher myself, I was able to have decent teaching conversations with him. He is very knowledgeable, outgoing, and easy to work with. Call Robert! I highly recommend.”

★★★★★
“I wish to give Robert Harker of Harker Piano Service the highest possible recommendation.
Robert is a genuine old-school artist and technician: he knows and loves his art of piano service and piano playing.
He’s the real deal: he has perfect pitch and he tunes carefully by ear.
Plus, he has a very congenial personality in which one may have confidence.
His fees are extremely reasonable for the highly professional and specialized service he provides: Robert is a doctor of the piano. Thanks!”

★★★★★
“Robert did an amazing work for tuning my piano. He is so knowledgeable, skilled and super nice, and he spent extra time and fixed a few repairs for my piano. I feel so lucky that I found him for my piano and highly recommend his service!”

★★★★★
“After purchasing a used Yamaha piano late last fall, we were very fortunate to have Robert referred to us for tuning. Our piano looked great but was WAY out of tune after many years of neglect. Robert took extra time to tune and re-tune our new piano and shared his extensive knowledge of piano design and function. He even gave our daughters an entertaining piano history lesson. Three months later, we were happy to have Robert return for another tune, which we fully understood was necessary for a piano left un-tuned for many years. Robert has an obvious passion for his craft and a great ear for proper sound. He is professional, reasonably priced, and very punctual. We highly recommend his services!”

★★★★★
“I am elated to find a piano tuner who not only has an ear, but knows about pianos. He answered all the questions i had about how often to tune, what temperature to keep the piano room, etc. He is able to fix problems and knew the business owner where I bought the piano. Will use him again.”

From Thumbtack:

★★★★★
“Piano hadn’t been tuned for 52 yrs so worked for 4 hrs and wanted to do more but was fine for what I needed. Very knowledgeable about piano history.”

★★★★★
“Robert arrived right on time and performed a magnificent job of piano tuning. The piano (a Yamaha Grand) had been sitting idle for two years. In a little over three hours he worked his magic and gave it back it’s wonderful voice. Thank you Robert. Highly recommended. David”

★★★★★
“Robert was a consummate professional and showed his dedication through and through. My piano was not an easy one to tune and repair by any means; and he stuck it out and made sure it was available to me as promised. He even sketched a detailed illustration of what and how he repaired mechanical issues so I knew exactly what he did and what to look for. I recommend him highly.”

★★★★★
“Robert spent an 1 1/2 hrs tuning and did a thorough job. He knows pianos. Don’t hesitate to hire him!”

★★★★★
“Robert arrived precisely on time and took time to provide a detailed description of possible options to improve my piano’s condition. He also did a few adjustments beyond a standard tuning and wouldn’t accept any additional compensation. He is very personable and clearly dedicated to his craft.”

★★★★★
“Robert Harker did an excellent job tuning and repairing my Wurlitzer spinet piano. He recommended several options for needed repairs, pointed out what was optional and did not pressure me to spend more than I needed. He also explained many of the internal features of the piano and gave me tips on how to take care of it. I would definitely call him again.”

★★★★★
“Robert is very passionate and knowledgeable about the piano. He took the time to explain how the Paino works and what would make it sound great again. He took his time on a Friday evening after driving over an hour to come to my home. I appreciated his willingness to help us stay within our budget. We will definitely use his expertise again and highly recommend him!”

★★★★★
“Robert was excellent. Very thorough, explained everything and gave me all the information to make a good decision. Plus my piano sounds just beautiful now.”

★★★★★
“Could not have a more professional and personable person work on your piano. Robert went the extra mile explaining every step of rehabilitating our fifty-odd year old Wurlitzler upright.”

★★★★★
“I can’t say enough good things. He is so incredibly knowledgeable about pianos!! He even took the time to explain in detail everything he was doing, and explained each part of the piano and what makes a piano work because he could tell I was really interested. He is very honest and will not make up work that needs to be done just to get a bigger payment. He will be honest about your piano and the condition that it is in. And of course, most importantly, he does an amazing job! I haven’t enjoyed playing my piano this much in a long time. Seriously cannot recommend him enough. I have my piano tuner for life!”

★★★★★
“Mr. Harker was very professional and thorough. He took the time to explain what was needed for my piano and even took the time to teach me a few things. I would highly recommend Mr. Harker’s services.”

★★★★★
“Robert did a great job working on my piano. It was in pretty bad shape and Robert’s work really exceeded my expectations. His rates are very reasonable.”

★★★★★
“Robert brought our 1932 Weber grand back to life. He is every bit as much an artist as he is a technician. I cannot possibly say enough good things about him.”

★★★★★
“He did a fine job, was prompt, very professional and we will call him in the future.”