Guides / For Shops

Should Your Shop Bring Anodizing In House?

September 24, 2026

Ask a bike brand why it changed machine shop and finishing comes up more often than tolerance, price or lead time. Ask a shop why it lost a bike parts quote and it usually blames price. Both are describing the same gap.

This is the decision behind that gap.

What the customer is actually asking for

Not anodizing. A finished part, in a specific color, that matches the other parts they sell, arriving on a date.

That means the capability question is not “do I own tanks”. It is “can I own the outcome”. A shop with no tanks and a finisher it has worked with for three years owns the outcome. A shop with tanks and no color control does not.

The case for in house

Lead time control. No transit, no queue behind somebody else’s order, no phone calls about where the parts are. On a rush job this is the whole argument.

Margin. Finishing is a real line on the invoice and currently all of it leaves the building.

Quality loop. When a rack comes out wrong you see it immediately and you know what changed, instead of receiving an explanation a week later.

It reads well. A brand hears “in house anodizing” and stops worrying about one whole category of risk.

The case against

It is a chemical process business, not a machining business. Tanks, rectifiers, ventilation, effluent treatment, permits, waste disposal and someone who actually understands bath chemistry. None of that is adjacent to running a mill.

Regulation. Wastewater and chemical handling are permitted activities in most jurisdictions, with inspection regimes attached. This is usually the item that ends the discussion.

Utilization. An anodizing line is priced per batch. If your own work does not fill it, you are running an underutilised chemical plant or selling capacity to other shops, which is a different business again.

Color is a craft. Matching black across 6061 and 7075, holding a color across batches as the dye bath ages, getting a red to look like last year’s red. A finisher who has done it for twenty years is good at it. A machinist who bought tanks last spring is not, yet.

The middle path, which is what most good shops do

Pick one finisher. Work with them like a partner rather than a vendor.

What that means in practice:

1. Agree a written turnaround. Not “about a week”. A number you can put in a quote.
2. Agree a thickness range. Type II at 15 to 20 microns, stated, so your machining allowances are stable.
3. Approve and keep master samples. One per color you sell. They keep one too. Every batch is judged against the physical sample, not a memory.
4. Standardise masking. Plugs, caps or racking points designed into the part and recorded, so it is the same every time.
5. Book capacity, not jobs. A slot every week beats a phone call every time.
6. Visit. See how they rack, ask what makes their life hard, design around it.

Do those six and you can quote the finished part with confidence, which is most of what winning bike work requires.

The costs to put in your quote either way

Item	In house	Partner
Per batch charge	Your own cost, whatever the rack contains	Their charge, usually per rack
Lead time	Hours to days	Their stated turnaround plus transit both ways
Color risk	Yours, entirely	Shared, if you have an approved sample
Small runs	Still a full batch cost	Still a full batch cost
Capital and permits	Significant	None

Note the row that does not change: a small run pays for a batch either way. Racking 25 collars costs close to what racking 200 costs. That is why grouping a customer’s parts into one anodizing batch is the most useful thing you can offer a small brand, and it works with a partner just as well as in house.

What to tell a customer

Whichever route you pick, the answer a buyer needs is the same three sentences.

“Finishing adds X days to the lead time.” “Yes, we can match your existing part, and we will approve a sample before the batch runs.” “Here is what the finished part costs, in one number.”

A shop that can say that wins bike parts work. A shop that says “we can arrange anodizing” does not.

Register your shop and tell us what you do yourself and what goes to a finisher. Both answers are fine. Vagueness is the one that costs you requests.

Frequently asked questions

Keep reading

• What Bike Parts Work Asks of an Anodizing Shop
• What Bike Parts Machinists Want From a Metal Supplier