Calvin Robertson G.M.I.M.I.T. Lon.

$195

Estimated price

Zip code

Additional service

Age of piano

Last piano tuning

Responds within a day

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About

G.M.I.M.I.T. means.....I am a Graduate Member of the Institute of Musical Instrument Technology of London.... I am also the holder of the 1968 Evelyn Broadwood Scholarship award from The Worshipfull Company of Musicians in London.. In 1979, I passed the Piano Technician Guild Examination for RPT.. If you need my services.. choose My Name Only… The cost of tuning is $195.00. ..pitch raise..$175.00, (Service Charge is $75.. if I am at the job, and you decide not to do anything.. that charge compensates for the trip .. ). …cleaning Grand Pianos..$230.00...to $330.00....and Regulation is $1,200. All payments are due on completion of the job.. I also specialize in regulating the grand piano action so that it will perform identically the same way the weather you play softly (p), or loud (ff). I will provide you with the Ultimate in service, integrity, and professionalism. ******** Thanks.

Overview

Hired 1429 times

4 similar jobs done near you

Background checked

57 years in business

Business hours

This pro hasn't listed their business hours.

Payment methods

This pro accepts payments via Apple Pay, Cash, Check, Venmo, and Zelle.

Top Pro status

Top Pros are among the highest-rated, most popular professionals on Thumbtack.

2024

2021

Services offered

Piano type

Additional service

Voicing

Regulation

Pitch raise

Fix squeaky pedal

Projects and media

Reviews

Customers rated this pro highly for professionalism, work quality, and responsiveness.

Excellent 4.9

651 reviews

5

97%

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2%

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Read reviews that mention:

Lee-Sean H.

4 days ago

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Hired on Thumbtack

Calvin responded to my request within minutes and was able to come by to tune our family heirloom piano the next day, perfect timing for enjoying music together for Christmas

Details: Upright • Last piano tuning more than 2 years ago • Piano played a few times a year • More than 10 years old • Pitch raise

Piano Tuning

Bill Q.

3 weeks ago

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Hired on Thumbtack

Details: Spinet • Last piano tuning 1-2 years ago • Piano played at least once a week • More than 10 years old

Piano Tuning

Julian B.

2 weeks ago

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Hired on Thumbtack

Calvin brought our baby grand back from the dead. It hadn’t been tuned in years and was clearly showing it: a sticking key, aging parts, and felt swelling from temperature changes. Most people would’ve done the bare minimum and called it “good enough.” Calvin didn’t. He went above and beyond, staying on the job until the piano was fully revived. He took it apart piece by piece to clean and restore what needed attention, then got it back in tune and playing beautifully. It honestly feels like it could hold its own in Carnegie Hall (yes, I’m exaggerating, but only a little). On top of the craftsmanship, he was on time, professional, and walked us through a few simple tips to keep the piano in great shape going forward. If you want someone who actually cares about doing the job right, hire Calvin.

Details: Baby grand • Last piano tuning more than 2 years ago • Piano played a few times a year • More than 10 years old

Piano Tuning

Vince P.

3 weeks ago

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Hired on Thumbtack

Calvin was the first to respond to my inquiry. It was my first time using Thumbtack. He got back to me very quickly and fit my schedule for the following day. I looked at his credentials carefully, he is well qualified. He was punctual and set right to work, and for over three hours he sat, tuned, without a break, without fatigue, without complaint. I have to say I am impressed at that level of focus and endurance. It takes a special mind and a gifted ear to tune an instrument and not suffer from fatigue. He explained to me after inspecting the piano that it needed a pitch correction. This needs to be done in two passes, carefully, to avoid breaking strings and because tuning one end shifts the tension on the others. The pitch correction doubles the cost of the procedure. Thinking about it, this is the cost of not having a piano tuned for more than a decade. One reviewer mentioned detuning of the upper octave after the job and dissatisfaction at not getting a free follow-up tuning. After long neglect and a pitch correction, the bridge needs to settle, and drift in the upper octave is a natural part of the corrective process. The piano needs another tuning in six months, after it has stabilized. You have a sensitive instrument manufactured with natural materials, which is why it sounds spectacular when properly maintained. In my case this was my mother's Spinet and I was pleased by how good it sounded when Calvin was done. It had not been tuned as long as I can remember. I hope those who have a long-neglected piano can understand what miracles can be done with this level of care and effort. I imagine someone like Calvin, with the patience of Job at his task and in dealing with clients, deserves a strong note of thanks.

Details: Upright • Last piano tuning more than 2 years ago • Piano played a few times a year • More than 10 years old • Fix sticky keys

Piano Tuning

Fred W.

Nov 5, 2025

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Hired on Thumbtack

Knowledgeable and professional. A rare experience! He restored and tuned a family piano that had not been played over seventeen years and not been tuned for for forty years.

Details: Upright • Piano played a few times a year • Unknown age • Fix sticky keys

Piano Tuning

Credentials

Background Check

Calvin Robertson

FAQs

What should the customer know about your pricing (e.g., discounts, fees)?
The fee for fine tuning is $175. The fee for pitch raise is $150. The fee for regulation is $950. The fee for voicing is $65. The fee for cleaning the interior of a Grand Piano is $165. to $220.
What is your typical process for working with a new customer?
When I come to a new customers piano, l will have on a mask, and I will let you know what need to be fixed; and what the cost would be; you can decide weather to complete the job. Sometimes a payment plan could be arranged.
What education and/or training do you have that relates to your work?
In 1966 l was sent from the Jamaica Scsool of Music on a Scholarship Award to London, and would return in 1968 to work there for three years. At the end of the program I Graduated from The Institute of Musical Instrument Technology (G.M.I.M.I.T Lon.); and also won the the Evelyn Broadwood Scholarship award for 1968. It is the highest award for outstanding research on the proper sequence to Regulate the Grand piano Action. In 1978. l passed the Piano Technicians Guild Examination to become a member. (PTG).