PetAllergy testing isn't usually the first step for an itchy pet — vets treat the symptoms and rule out fleas and food first. But for a pet with ongoing environmental allergies (atopic dermatitis), testing identifies exactly what it reacts to so a custom immunotherapy can be made. Here's what the two kinds of testing cost in Canada, what comes after, and how insurance treats it.
What it costs in Canada
| Scenario | Typical cost (CAD) |
|---|---|
| Blood (serum IgE) allergy test | ~$200–$400 |
| Intradermal skin testing (dermatologist) | ~$400–$1,000+ |
| Dermatology specialist consult (if referred) | ~$200–$400 |
| Immunotherapy — allergy shots or sublingual drops (monthly) | ~$50–$150/month |
| Food-elimination trial (to rule out food allergy first) | ~$60–$150 (prescription diet, 8–12 weeks) |
| Ongoing itch control while testing (meds) | ~$40–$200/month |
These figures are estimates for general guidance only, not quotes, compiled from publicly available Canadian veterinary pricing. The main choice is blood test vs intradermal skin test: a serum blood test is cheaper and any vet can draw it, while intradermal testing (the dermatology gold standard) needs a specialist and costs more. Testing is only worth doing if you plan to pursue immunotherapy — otherwise vets manage allergies with medication. City specialty/dermatology clinics sit at the top of the range. See How we estimated these costs.
With insurance vs paying out of pocket
| Scenario | You pay | Insurer pays |
|---|---|---|
| No insurance | Full cost of testing + immunotherapy + itch meds | $0 |
| Comprehensive policy (not pre-existing) | Deductible + co-insurance share | Covers work-up, testing, and immunotherapy for a covered allergy |
| Allergies documented before enrolment | Full ongoing cost | $0 — pre-existing / chronic exclusion |
| Accident-only policy | Full cost — allergies are an illness | $0 |
When testing makes sense (and when it doesn't)
Most itchy pets don't need allergy testing right away. Vets first rule out fleas and run a food-elimination trial, and manage the itch with medication — because a blood or skin test won't diagnose a food allergy and won't change treatment if you're only using drugs. Testing earns its cost when a pet has confirmed environmental allergies (atopic dermatitis) and you want to pursue immunotherapy — allergy shots or under-the-tongue drops custom-made from the pet's specific allergens. The test tells the lab what to put in that custom formula.
Blood test vs skin test
There are two ways to test. A serum (blood) IgE test is a simple blood draw any vet can send to a lab — it's cheaper ($200–$400) and convenient. Intradermal skin testing — tiny injections of allergens into a shaved patch, read for reactions — is done by a veterinary dermatologist and is considered the gold standard, at $400–$1,000+ plus the specialist consult. Many pets do fine starting from a blood test; a dermatologist may recommend skin testing for tricky cases. Either way, the point is to build an accurate immunotherapy.
What it leads to: immunotherapy
Testing is the front end of a long-term plan. Once allergens are identified, immunotherapy gradually desensitizes the pet with regular shots or daily drops, at roughly $50–$150 a month, often for years or life. It's the closest thing to treating the cause rather than just the symptoms, and many pets reduce their need for other itch medication over time. Full symptom-management options and costs are in our pet allergy treatment and skin infection / hot spots guides.
The insurance angle: insure before the itch
Allergy testing and immunotherapy are treatment for a medical condition, so comprehensive (accident-and-illness) plans cover them at your reimbursement rate after the deductible — provided the allergy wasn't pre-existing when you enrolled. This is the classic chronic-condition trap: allergies usually appear young and, once itching is on the record, an insurer excludes them — leaving you to pay for testing and lifelong immunotherapy yourself. Insuring a healthy pet before any skin or itch signs appear is the only way to keep this covered. See best pet insurance in Canada.
How we estimated these costs
The dollar figures here are estimates for general guidance, not quotes, compiled from publicly available Canadian veterinary pricing. Real costs vary by clinic, province, which test is used, and whether a specialist is involved — confirm with your own vet. Sources we drew on:
- Canadian testing, dermatology, and medication cost ranges: our Canadian Vet Cost Index, compiled from publicly available Canadian clinic pricing.
- Related costs from our pet allergy treatment and skin infection / hot spots cost guides.
Considering insurance?
Allergy testing is $200–$1,000, and the immunotherapy it leads to is a monthly cost for years. Comprehensive insurance covers testing and treatment only if the allergy wasn't already on record. Insure a healthy pet before the itch starts and compare Canadian plans.