Scuba Equipment Repair & Professional Dive Gear Service

Factory-authorized scuba equipment service, regulator repair, BCD service, full-face mask service, and public safety diving equipment repair. Local service in the Charlotte, NC area and mail-in service available nationwide.

Your regulator is life-support equipment — it deserves a real technician, not a parts-swap. At Sink or Swim Scuba, service is a core part of the business, with 20+ years behind the bench and factory-authorized status. Every regulator is bench-tested on our A.I.R. (Atmospheric Inhalation Resistance) Flow Analyzer so it breathes exactly the way the manufacturer intended. Local divers drop off; divers and public safety teams nationwide ship in.

ScubaEquipmentRepair.com — Professional Dive Equipment Service. A service of Sink or Swim Scuba · Gastonia / Charlotte, NC.

Start a Repair → or call 704-823-0501

Technician testing an Interspiro breathing system on the Spiromatic test bench in the Sink or Swim Scuba service room in Gastonia, NC
Our service room in Gastonia — every Interspiro system verified on the Spiromatic bench before it ships back.

What we service

Regulator service & repair — annual service, overhauls, diagnostics (first stages, second stages, octos).
BCD service & repair — inflator service, bladder leak testing, dump valve and OPV service.
Full-face mask service — inspection, seal and valve service, comms integration.
OTS equipment — factory-authorized service (full-face masks and communications).
Interspiro equipment — authorized Interspiro service (Divator, DP-1, RS4, and more).
Tank visual inspection (VIP) & hydrostatic testing — in-house.
Public safety dive equipment service — a specialty, run by an active PSD team member.
Other manufacturers — expert service for Oceanic, Hollis, Atomic, Zeagle, Sherwood, XS Scuba, and more.

Service pricing (starting at)

Regulator service — from $25 per stage + parts
BCD annual service / inspection — from $20
Visual tank inspection (VIP) — from $20
Hydrostatic tank testing — from $60

Full-face masks and surface-supplied diving equipment are quoted separately. You’ll always get an estimate for approval before any work beyond standard service.

How mail-in repair works (nationwide)

Start a repair. Complete the form below (or call us) and tell us what you’re sending and what it needs.
Ship it in. Package your equipment securely and send it to our Gastonia service facility.We inspect & quote. No work beyond standard service happens until you approve it.
We service & bench-test it to manufacturer spec.
We ship it back insured and dive-ready. We’ll give you an estimated turnaround time with your quote and keep you posted.

Deposits, fees and return shipping

$45 intake fee — paid when you start a repair. It covers inspection, diagnosis and bench time, and it is credited in full toward your service when you approve the quote.
If you decline the quote, the intake fee covers the work already done. We’ll return your equipment once return shipping is arranged.
Return shipping is billed at cost and insured. We quote it with your estimate — it is not built into service pricing.
Unclaimed equipment — if we don’t hear back within 90 days of sending your quote, equipment may be sold or disposed of to cover charges. We will make every effort to reach you first.

Factory diagnostic & bench testing

We don’t guess — we verify. Every regulator is bench-tested on our A.I.R. Flow Analyzer so it breathes to manufacturer spec. For Interspiro diving breathing systems, we use specialized Interspiro Spiromatic test equipment to inspect, service, troubleshoot, and verify performance — evaluating operating pressures, leakage, breathing-valve function, and regulator performance as part of proper Interspiro service procedures. That’s factory-level verification most shops simply can’t offer.

Regulator service bench at Sink or Swim Scuba with intermediate-pressure gauges, regulator vise, torque wrench and OTS Guardian service manual
The service bench: calibrated gauges, regulator vise, torque wrench and the manufacturer service manual for the job in hand.

Why send it to Sink or Swim Scuba

Factory-authorized service center for Interspiro and OTS.
Factory diagnostic testing — A.I.R. Flow Analyzer for regulators + Interspiro Spiromatic test bench for Interspiro systems.
20+ years in business; voted Best Dive Shop in Charlotte, 2025.
SDI 5-Star Instructor Training Facility and ERDI Training Facility.
Public safety diving expertise.
Local + nationwide mail-in.

Interspiro Divator service kits and OTS Guardian maintenance kits stocked at Sink or Swim Scuba
Factory service kits for Interspiro Divator and OTS Guardian, on the shelf and ready.

Brands & equipment we service

Factory-authorized for Interspiro (Divator, DP-1, RS4) and OTS. We also provide expert service for Oceanic, Hollis, Atomic, Zeagle, Sherwood, XS Scuba, and more. Not sure if we service your gear? Call 704-823-0501.

Genuine Interspiro service parts - diaphragm unit, valve insert and non-return valve assembly - at Sink or Swim Scuba in Gastonia, NC
Genuine Interspiro parts, stocked in-house — not aftermarket substitutes.

Before you ship: brands we handle differently

ScubaPro — we service some ScubaPro here at our own bench; the rest goes to one of our partner shops. Ask before you ship and we’ll tell you which yours is. Partner work adds a little time.
Mares — we service it, but some parts are hard to source. Ask us before you ship and we’ll confirm parts availability first.
Sherwood — older Sherwood regulators we service and keep parts on the shelf for. Newer Sherwood parts are harder to get — check with us first.
Aqua Lung and Apeks — parts and service access are inconsistent for these lines. Check with us before shipping and we’ll tell you honestly whether we can help.
Spare Air — we do not service Spare Air, and we do not have a partner who does. Contact the manufacturer directly.

We would rather tell you no up front than have your gear sitting on our shelf waiting on a part. Not sure where yours falls? Call 704-823-0501 before you ship.

Start a repair

Fill out our repair request and we’ll get right back to you with next steps, or call 704-823-0501.

Starting a repair includes a $45 intake fee, credited toward your service when you approve the quote. After you submit this form we’ll send payment and shipping instructions — please don’t ship anything until you hear from us.

Frequently asked questions

Do you service gear shipped from other states?
Yes. Our mail-in program is built for it — ship it in, we service it, we ship it back, insured.

Will I know the cost first?
Always. We inspect your equipment, send you an estimate, and wait for your approval before any work beyond standard service.

What brands do you service?
Factory-authorized for Interspiro and OTS, plus expert service for Oceanic, Hollis, Atomic, Zeagle, Sherwood, XS Scuba, and more. Call 704-823-0501 if unsure.

How long does it take?
Turnaround depends on the service and our current workload. We’ll give you an estimated timeframe when we send your quote and keep you posted.

What is the A.I.R. Flow Analyzer?
A diagnostic bench that measures a regulator’s breathing resistance so we can tune it to manufacturer spec.

Do you service public safety dive equipment?
Yes — it’s a specialty, including PSD regulators, full-face masks, and communications.

Ready to get your gear serviced?

Start a Repair → · Call 704-823-0501 · Email Dive@SinkorSwimScuba.com

Sink or Swim Scuba · 4310K Wilkinson Blvd, Gastonia, NC 28056

For dive shops: Shipping Interspiro equipment for a customer? See our Interspiro support for dive shops and dealers for authorized service, parts, service kits and quotes.