NB: Per COVID-19 conditions which led to a long backlog, we are currently not taking in new repairs, including building and repairing C extensions. We'll update these pages when circumstances change.

Who's working on your valuable instrument? Sometimes there is a lot of mobility between and/or away from establishments -  if you investigate the services of a new shop or independent repairer, make certain that anyone you entrust with the instrument you depend on is doing work to the highest industry standards, is insured, and is recommended by both a high-level client base and respected industry professionals!
Beat the price increase!

Quantum Bass Center is at last raising repair prices commensurate with its high quality of workmanship and experience. Repair prices for INSTRUMENTS PURCHASED FROM QBC will remain at the old rates for now. Beat the repairs price increase - choose your bass, violin, viola, or cello from QBC!

Our luthiers are a trusted repair team for professional orchestra bassists, professors, and conservatory bassists nationwide.  We also do high-quality repairs to the other stringed instruments.

A list of our most commonly-requested services - let us inspect the instrument for details/cost estimate.
Contact us with questions or to book your repair appointment today!
News! QBC is the first repair shop in the US to install the new Baroque-style bass bridges by Despiau! 150mm width only. Book your appointment today!
Bow - Rehair
Violin/Viola/Cello/Bass
we use only top-quality bow hair on all bows, as students need the same performing nuance and advantage as professionals. 

Bow - Replace Tip
Choose from bone, synthetic material,
​or mammoth (per availability)

Bow Grip (Leather)
Replace bow leather whether worn,
or a custom size is desired

Bow Winding (silver wire)
Replace missing or deteriorated wire winding 
for proper balance

Bow Grip (natural latex), bass
black, heavy gauge or thin-wall, bevelled ends, pre-loaded with cornstarch for ease of installation
note: not hypo-allergenic
- Installed free if purchased here -​
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New service!  Glasser bows INSTANT EXCHANGE - swap your original Glasser bow, any condition, for a like-new, factory reconditioned Glasser bow ON THE SPOT (or by mail)!  Less than rehairing alone!
Easy exchange by mail
Bass bar, replace
Highest-quality, custom cut, straight narrow-grained spruce; mathematically correct placement; optimally shaped

Brace, back, re-glue
Requires top remove/replace ($450) and includes checking/regluing all braces and existing patches $150 minimum
​
Bridge - New
Violin • Viola • Cello • Bass either with or without adjusters - we use the finest quality Despiau French maple bridges for superior tone and durability

Bridge adjusters, aluminum or composite, installed
yes, we can install them in ALL size basses!

C-Extension repairs (new leathers, adjust gates)
$50.00 minimum 

C-Extension, chromatic, installed
QBC's fully handmade extension, top-quality EBONY body, crack-resistant composite levers, elegant, precise, ergonomic and by far the best price for its superior quality!  Book your installation appointment today!

Edge Bumpers
Our Custom Black Rubber or Hand-carved Ebony

Endpin – Drill for Laborie style
Bass $55.00 (endpins start at $22.00) 
Free drilling of basses purchased here
Note: angled endpins are available in several stock lengths, which you may trim to fit as desired.
Labor rate to custom-fit/consult on your endpin height applies.

Endpin, adjustable rod - New
Cello • Bass - Labor charge
plus cost of your chosen endpin

Endpin, wood, fit to your desired height
QBC's custom wood endpins are sold in stock lengths (2" increments).
​- If  you know the length you want, cutting to size is free with purchase of the endpin.
- Post-purchase: you mark length, we cut: $2
- Endpin height consultation (try different heights, positioning, etc.) regular shop rate of $75/hr.

Fingerboard - Complete Re-Plane/Re-Finish
Ebony or Painted (surcharge for re-coloring painted fingerboards)
"lumpectomy" (minor corrective planing) $50 minimum

Fingerboard extension
frequently requested for double bass - securely and unobtrusively attached from under existing fingerboard.  Finish-matched.

​Fingerboard - New - A grade ebony
We use only the highest-quality A grade ebony, and start all 3/4 bass fingerboards with 4/4 size blanks!  Usually no fingerboard extension is required, and they are dense, true black, and correctly shaped to optimize the neck geometry of your bass and equalize string tension for optimal sound.
Fingerboard position markers (dots):
Walnut, brass, aluminum or white
just $20 ea (all instruments)
- highly recommended instead of using tape - ask us about discounts on these with new instruments purchased from us! 
​
Neck Reset (can be a simple clean and re-glue, or require repair to the mortise, ribs, neck, upper block, and button, depending on peripheral damage)

Neck - install carbon-fiber bars for rigidity
Bass $100 plus cost of fingerboard removal/replacement
- highly recommended if fingerboard is already off for any reason!

Neck - graft (scroll graft)
Requires removing original scroll from a broken neck and grafting it on to a hand-carved new neck, varnish matching, and transplanting original tuners/pegs.  Extensive labor.

Neck - New (German pre-carved scroll)
Includes varnish match and transplanting your tuning machines or pegs

Pickup, electronic - install
Pickup purchased at QBC - FREE, $0
Pickup purchased elsewhere: $15/up

Saddle, raised (made in-house)
Ebony.  Normally sits over the original saddle and is screwed into the end block.  Removable.  Includes evaluation of the bass for optimal saddle height, and new tail wire

"Set Up"
This refers to several tasks, such as fingerboard planing, bridge fitting, tail wire length adjustment, and more.  Quoted by the work required on your instrument.
NOTE: each instrument sold by QBC is set up to true professional standards, included in the price.  It is virtually always less expensive to purchase a properly set up instrument here than to pay for setup work on a mail-order/craigslist instrument.  See our article on mail-order instruments

Seam Reglue
Violin/Viola/Cello/Bass $50.00 minimum ($30 on instrument from QBC)
We do not charge extra for 1 or 2 additional open seams, either.  If there is a very large opening requiring multiple steps to close, we will give you an estimate.

Soundpost – Simple Reset
Violin/Viola/Cello/Bass $15.00 
no charge if other work is being done on the instrument

Soundpost - tonal adjustments
$85/hour all instruments - $75 instruments from QBC

Strings - Install
Free installation of strings purchased here!
Strings purchased elsewhere: $15 minimum labor
Just another reason our string prices are lower.

Tailpiece - replace
installed free if purchased here.  We stock numerous styles of violin/viola tailpieces, and standard styles for bass.

 Tailwire - New
Various types available
New Harmony "Sacconi style" cello tail wire
​New Harmony Bass Tail Loop $29.99
installed free if purchased here

Top, remove/replace (full)
No surcharge for laminated instrument!  Repair of existing damage from prior top removal is quoted as a separate repair.

Varnish touchup, polishing, cleaning, rosin removal
shop rate of $85/hour ($75 on instruments from QBC), minimum $25

Wolf Hunt/Tonal Adjustments/Consultation
  $85.00/hour - $75 on instruments from QBC









Looking for related items for your instrument?
See our WEB STORE!  Strings, accessories, sheet music, & much more!
Replacement PARTS (chinrest, tailpiece, endpin, etc.) are at market price plus installation - just ask.  Customer-provided parts: since we beat others' prices for standard AND specialty replacement parts, it's cheaper to have QBC provide, install AND guarantee the replacement parts you need!   
Please note there is a charge for consulting/adjusting instruments (moving the soundpost, etc. to suit player's preferences) and custom-fitting endpins to your desired height - at our regular labor rate of $85/hr. ​