Custom Orthotics for Flat Feet in Mississauga — Do They Really Help?

Flat feet are extremely common — some estimates suggest one in four adults has little or no visible arch. For many people, flat feet cause no problems at all. For others, they are the hidden reason behind aching arches, heel pain, shin splints, sore knees, hip discomfort, and even lower back pain that no amount of stretching seems to fix.

Custom orthotics are one of the most frequently recommended solutions, and one of the most frequently questioned. Do they actually work, or are they just expensive insoles? At Rishaan Physio & Wellness Clinic in Mississauga, we fit custom orthotics as part of a full lower-limb assessment, so here is an honest look at what they do, who benefits, and when they are — and are not — the right choice.

What Are Flat Feet?

Flat feet (pes planus) means the arch on the inside of the foot is lowered or absent, so most or all of the sole touches the ground when standing. There are two main types:

• Flexible flat feet — the arch appears when you sit or stand on your toes but flattens when you bear weight. This is by far the most common type and often runs in families.
• Rigid flat feet — the arch is absent in all positions. This is less common and may be linked to structural bone or joint issues.

Flat feet can be present from childhood or develop in adulthood — often due to weakening of the tibialis posterior tendon, weight gain, pregnancy, aging, or years of standing on hard surfaces.

Why Flat Feet Cause Pain Elsewhere in the Body

The arch is the foot’s natural shock absorber and alignment guide. When it collapses, the foot rolls inward excessively — a movement called overpronation. That inward roll does not stay in the foot. It rotates the shin, changes the angle of the knee, tilts the pelvis, and alters how the lower back is loaded with every step. Over thousands of steps a day, these small shifts commonly lead to:

• Arch and heel pain, including plantar fasciitis
• Achilles tendon irritation
• Shin splints
• Knee pain, especially on the inside of the knee or under the kneecap
• Hip and IT band tightness
• Lower back pain and fatigue after standing
• Bunions and toe deformities over time

This is why patients are sometimes surprised when their knee or back problem is traced to their feet — and why treating only the painful area often gives temporary relief at best.

What Custom Orthotics Actually Do

Custom orthotics are prescription insoles made from a mould or 3D scan of your feet, designed to support the arch, control overpronation, and redistribute pressure across the foot. Unlike a store-bought insole, which offers a generic curve, a custom orthotic is shaped to your specific arch height, foot length, pressure points, and the mechanical problem being corrected.

In practical terms, a well-made orthotic for flat feet:

• Supports the arch so it does not collapse under load
• Reduces the inward roll of the ankle and the rotation it causes at the knee and hip
• Cushions high-pressure areas such as the heel and ball of the foot
• Improves alignment from the ground up, reducing strain on the joints above
• Reduces fatigue for people who stand or walk all day

Curious how custom compares to what you can buy at a pharmacy? Read our breakdown of custom orthotics vs. store-bought insoles.

Do Custom Orthotics Really Help Flat Feet? An Honest Answer

Yes — for the right person and the right problem. Custom orthotics are not a cure for flat feet; they do not permanently rebuild an arch. What they reliably do is reduce pain and improve function while you wear them, by correcting the mechanics that cause the strain. For many patients, that is exactly what is needed to walk, work, and exercise comfortably again.

Orthotics work best when:

• Your pain is clearly linked to overpronation or arch collapse (which a proper assessment confirms)
• You spend long hours standing, walking, or running
• Previous treatment focused only on the painful area and the pain keeps returning
• They are combined with strengthening exercises for the foot and lower leg

They are less likely to help when the pain has a different cause, when they are poorly made or fitted, or when they are worn only occasionally. This is why we assess first and prescribe second — if orthotics are not the answer, we will tell you and recommend what is.

Orthotics Alone Are Not the Full Solution

The best results come from combining orthotics with treatment for the tissues that have been under strain. At Rishaan Physio, an orthotics plan for flat feet typically includes:

• Physiotherapy — strengthening the tibialis posterior, calf, and small foot muscles that support the arch, plus treatment for any knee, hip, or back pain that has developed
• Massage therapy for tight calves and plantar fascia
• Footwear advice — orthotics only work in shoes that can hold them properly
• Activity guidance — how to return to walking, running, or standing work without flaring symptoms

What to Expect at a Custom Orthotics Fitting in Mississauga

1. Assessment

We look at your foot structure, arch height, ankle and hip mobility, muscle strength, and how you walk (gait analysis). We also review your footwear and the activities that trigger your pain.

2. Casting or scanning

An impression of your feet is taken in a corrected position so the orthotic is built around the alignment we want — not the collapsed position your foot rests in.

3. Manufacturing

Your orthotics are fabricated to the prescription, usually within one to two weeks.

4. Fitting and follow-up

We check the fit in your shoes and give you a break-in schedule — typically starting with a couple of hours a day and building up over one to two weeks. A follow-up visit ensures they are working as intended and allows adjustments if needed.

Are Custom Orthotics Covered by Insurance?

Most extended health benefit plans in Ontario cover custom orthotics, often to a set dollar amount every one to two years. Plans typically require an assessment and prescription from an authorized health professional — which we provide — and some ask for a physician’s referral, so it is worth checking your policy. We handle the paperwork and can bill directly where your insurer allows.

Why Choose Rishaan Physio for Orthotics in Mississauga

• Full biomechanical assessment — not just a foot scan and a sale
• Orthotics prescribed within a complete treatment plan, with physiotherapy and massage under one roof
• Honest advice — if you do not need orthotics, we will say so
• Direct billing to most insurance plans
• Open 7 days a week, same-day appointments
• Free pickup and drop-off service
• Unit 7, 5105 Hurontario Street, Mississauga — Hurontario & Eglinton

Frequently Asked Questions