"Recover from Achilles Tendonitis with true custom alignment that delivers the precise heel elevation generic inserts lack, without the staggering cost of clinic visits."
Dr. William Naughton, DPM
Board Certified Podiatric Surgeon
View Medical Credentials
Dr. William Naughton
Chief Medical Officer
Custom Orthotics & Insoles for Achilles Tendonitis
No Rx Needed
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Podiatrist In-Clinic Custom | Retail Stores Like The GFS |
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| $225 Kit Included | $500 - $1,000+ Plus copays | $800 - $1,500+ Generic inserts |
| Truly Custom Impression Molded | Custom / Semi Plaster, Scan | Pre-Fabricated Off the shelf |
| Targeted Fit Reduces tension | Heel Relief Reduces tension | Generic Heel Cup One size fits all |
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✔ FSA / HSA Eligible |
FSA / HSA Eligible |
Varies |
| 180 Days Money Back | Varies Usually no refunds | Store Credit Exchange only |
| Podiatrist Medical Oversight | Doctor Clinical Care | Sales Rep No Medical Certification |
| At-Home Kit Delivered to door | Office Visits Appointments required | Sales Floor High-pressure tactics |
Custom Build for [Unknown]
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Build Strength
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Profile Design
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Target Relief
Was $285
Take $60.00 OFF Today!
(Code: Comfort is applied at checkout)
Dr. William Naughton, DPM
Board Certified Chief Medical Officer - NPI: 1245247089Achilles Tendonitis Orthotics:
Ultimate Achilles Tendonitis Relief: Our therapeutic, custom orthotics are precision-engineered to reduce stress and strain on the painful Achilles tendon. These are not simply generic insoles; each device is custom-made from a precise mold of your foot to ensure optimal rearfoot stabilization and targeted shock absorption, immediately reducing the tension pulling on the tendon and promoting healing. All our custom devices come with a Bilt Labs warranty and guarantee.
Precision Tendon Offloading
Achilles tendon strain is often caused by instability, excessive pronation, and sudden heel impact. Our custom design features a deep, stabilizing heel cup that minimizes side-to-side motion, and a controlled arch contour that limits inward rolling. This combination ensures the foot strikes the ground correctly and the tendon remains aligned, significantly reducing the inflammatory stress experienced during walking and activity.
Unparalleled Performance
Built from your unique foot mold and detailed health information, we guarantee a truly precise fit that mass-produced supports cannot match. Choosing Bilt Labs is choosing a durable, evidence-based therapy that offers reliable support and improves gait alignment for long-term comfort and mobility. Backed by our lifetime shell warranty.
Back to overview of Achilles Tendonitis orthotics.
Choose Your Comfort Layer
- Everyday (Memory Foam): Ideal for maximum cushion and all-day standing or walking.
- Active (High Rebound): Engineered for high-performance use, providing superior shock absorption and energy return for fitness and long work shifts.
100,000+ Lives
Changed Forever
Join the thousands who have found relief through proper biomechanical alignment. Our medical-grade custom orthotics are designed to get you back to living a pain-free life.
Easy, At-Home Process
No Rx Needed
Why Your Achilles Won't Heal?
The Mechanics of Achilles Strain
Achilles pain is often caused by excessive strain due to overpronation or low arch height. When your arch collapses, it twists the heel bone, creating a "wringing out" effect on the tendon with every step.
This constant stretching causes micro-tears in the tissue faster than your body can repair them. Without correcting the angle of your heel and lifting the foot slightly, the cycle of inflammation continues indefinitely.
We Treat The Root Cause Of:
- Achilles Tendonitis (Acute Inflammation).
- Achilles Tendinosis (Chronic Degeneration).
- Sever's Disease (Calcaneal Apophysitis).
- Haglund's Deformity ("Pump Bump").
Fast Facts
- Load: The Achilles absorbs 4x your body weight while walking.
- Impact: Misalignment twists the tendon, preventing healing.
- Correction: Offloading the tendon is the #1 medical treatment.
Recommended Solution:
Take Your Quiz
Treating the Root Cause of Strain
Why Generic Insoles Fail
Drugstore gels offer cushion but zero structural protection. They allow the heel to drop and the arch to collapse with every step, stretching the inflamed tendon further and preventing scar tissue from healing properly.
Precision Custom Offloading
We capture your unique heel width and arch height to create a device that stabilizes the rearfoot. This reduces the "pull" on the Achilles tendon, giving it the slack it needs to finally repair itself.
Why Choose Bilt Labs?
Podiatrist
- Cost $400 - $800+
- Lifespan 1-2 Years
- Visit Req. Yes
- Support Corrective
- Guarantee Rarely
Bilt Labs
- Cost $225
- Lifespan 2-3 Years
- Visit Req. No (At Home)
- Support Medical Grade
- Guarantee 6 Months
OTC Insoles
- Cost $20 - $60
- Lifespan 3-6 Months
- Visit Req. No
- Support Minimal
- Guarantee None
Clinical Relief from Home
Professional-grade orthotics without the doctor's visit. Here is how we do it:
Start with a free analysis and order your custom impression kit.
Use our custom kit to take a detailed mold of your feet at home and send it back to the lab.
Your custom insoles are approved by a DPM, precision-milled in the USA, and delivered to your home.
Medical Expertise
Elevate your foot health with Bilt Labs today.
Experience professional-grade biomechanical correction designed to meet your immediate pain relief and long-term structural health needs – accessible directly from home.
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Board Certified Oversight
Every pair is reviewed by experts, ensuring clinical accuracy.
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30+ Years Experience
Dr. William Naughton, DPM brings decades of orthotics expertise.
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Medical-Grade Materials
We use the same high-performance polymers as top podiatry clinics.
Verified Credential
License: DPM00321
NPI: 1245247089
Chief Medical Officer
Dr. William Naughton
Board Certified Podiatrist
Precision Engineered & Hand Finished—All In the USA
Aerospace-Grade Materials
We use high-performance polymers and EVA foams designed for maximum durability, shock absorption, and comfort.
Laser-Precision Milling
Your orthotics are carved from a solid block of material using CNC robotics, ensuring 100% accuracy to your foot mold.
Hand-Crafted Quality
Every pair is hand-finished and inspected by our technicians in our US-based lab to ensure clinical efficacy.
Designed For Your Specific Needs
Ready for Pain-Free Living?
Order your custom impression kit today and take the first step towards lasting relief.
Take Your QuizFrequently Asked Questions
Achilles foot Pain Relief
How do custom orthotics and shoe inserts help treat Achilles tendonitis?
What are the best custom shoe inserts and orthotics for Achilles tendonitis?
What shoes should you not wear with Achilles tendonitis?
What shoes do podiatrists recommend wearing with custom orthotics for Achilles tendonitis?
How long does it take for Achilles tendonitis to heal with custom shoe inserts?
Because the Achilles tendon has limited blood flow, recovery can take time. Many people feel relief from sharp pain within a few weeks of wearing custom orthotics as the tension is reduced. However, it can take 3 to 6 months of consistent use with your custom shoe inserts to fully heal the inflamed tendon tissue.
Please note: Always consult a healthcare professional for a personalized recovery timeline.
Product & Service
Are Bilt Labs shoe inserts and insoles truly medical-grade?
Do you take insurance or FSA/HSA for custom insoles?
What is the warranty on custom shoe inserts?
How long does it take to receive my custom orthotics?
How long will my custom orthotics last?
What is your return/refund policy?
Where are my orthotics made?
See what our customers have to say.
I’m a mailman with extremely flat feet. After going through 3 pairs of custom orthotics from doctor’s offices - to the tune of $500 EACH - none of which ever truly felt comfortable, I needed to find a better solution.
My wife had tried Bilt Labs and was over the dang moon about her orthotics. I tried their 2-pair deal and got the exact same custom food casting mold I’d used in the doctor’s office. That’s when I realized, the doctor’s, tho good at their jobs, were just middlemen when it came to the orthotics.
I cut out the middlemen and got a quicker turnaround time and orthotics that actually feel good on my feet! The attached photo is just a little longer than 6 months into wearing them and taken after 10 hours of trudging through snow & ice delivering mail and heavy packages. They still look in great shape (the front big toe area of the right insole is starting to peel just a tiny bit but I’m honestly surprised this hasn’t happened sooner, with how much abuse these things go through).
Working in nursing 34 years, my feet
were so sore. I was told I needed Orthotics by my foot Dr later on. I found
this sight and was thrilled to see the nicest people
After almost 3 years searching and purchasing from various company/seller (including doctor’s recommendation), this seller is top AAA!! Taking my questions seriously and super smooth to deal with. I bought 3 pairs and feeling relieved from the product. Very recommend it!
The inserts makes such a difference! Going to order a second pair
My wife gifted me the foot mold impression when my feet started hurting. I do have high arches, therefore I had to purchase work shoes/boots that accommodate my custom orthotics. It has been a great relief and pleasure to my high arches during my 10-14 hour work shifts!
Definitely recommend 👌🏼
Fit like a glove.
Great pair of orthotic insoles. Just ordered my 4th and 5th pair today. The ones before I got back in 2022.
I am very pleased with my orthotics. They sent a mold and customized them for me after I submitted some information. The price is better than at other places I have checked and they are custom made. It took awhile to receive them, but it was worth it. I didn’t even have to leave my house for an appointment.
The process of the foot impressions is incredibly simple. I orderd my first pair of orthotics in June of 2026. Started the break-in on the daily basis as recommended and have been wearing them full time since then. Feet are not perfect but, feel drastically better -- to the point of ordering a second pair.
My feet feel so much better with these orthotics. I am now comfortable when walking and woke up for the first time this morning without my previously chronic arch pain. I ordered a second pair after seeing how much better I feel.
Very pleased with these custom orthotics. Could use more cushioning in toe box
I am so happy with my Bilt labs orthotics (I ordered 2). They have eliminated my plantar fasciitis pain and allowed me to have pain- free activities.
Laura was very helpful keeping me updated at each stage of process. Great customer service.
Laura has been very healthy keeping me informed of the process and what is needed.
Finally I have relief. After many "foot doctor" my feet are happy with my custom bilt insoles.
I had a local orthotist help take my molds for my insoles. I can’t recommend having someone who knows what subtalar neutral looks like take your molds. That basically means you took the mold of your foot when it was neither pronated (rolled inward) nor supinated (rolled outward). It was crazy seeing the difference between my new and old insoles. The difference in support and overall quality was great for the price. My old ones cost me about $500 for one pair.
Worth every penny! Ordering 2 more sets!
better than foot DR.
Much better than the ones I got from ny podries
I ordered these online after purchasing a locally made orthotic that fell apart after 4 months and was very hard to fit in my sneakers. These orthotics are so much more streamlined. Although I generally wear very cushion solid sneakers, they were causing too m7ch dorsiflexion in my toes. These custom inserts help greatly with fatigue, heel spurs, plantar fasciitis and metatarsal issues. So glad I bit the bullet and ordered these.
I have had arch problems since I was in my 20’s now I’m in my 60’s. I have had $700 insoles from a foot doctor and several pairs that I got from my chichiropractor these are the best most comfortable I have ever had made for me. They are so comfortable and no foot pain after a long day walking and being on my feet. They are very affordable and shipped right to my house. I love them and ordered 2 more pair for my other shoes.
Love these insoles! They are very comfortable and give me the extra support I need for my arthritic knees.
Completely got rid of my planter fasciitis and bone spur. Highly recommend!
I really appreciate the precision and the excellent customer service of Bilt labs orthotics. I was very hopeful it would solve my foot pain. However, mine turns out to be more structural and bone spurs and so they did not help. I do feel like if I didn't have the bone spurs, they would be excellent. Laura was the customer service representative that made it easy to get a refund.
I bought custom insoles from a local store that uses laser measurements. And they are no comparison to Bilt labs insoles!
After trying numerous over the counter varieties and then going to a podiatrist for custom made (cost >$450 and had to go back twice; they still didn’t work), I tried Bilt Labs. The staff is exceptional and caring!!!
When they arrived and first used them my feet felt fantastic instantly. I went from having severe pain just walking short distances to immediately being able to run around in them!! Prior to receiving these I had given up being able to play tennis for nearly 18 months because I could only play a few games before I had to quit playing.
These inserts were live changing for me. I could now play competitively for an hour. However, after an hour of playing I started to notice some minor discomfort in my right foot. At first I ignored it. Then I decided to call BILT LABS.
The associate I spoke with asked me several questions about where the pain was on my foot and told me they would make a minor adjustment to my insole. They sent me a new right insole. It worked perfectly and I was able to play for hours without any discomfort. When I called Bilt back and told them, they sent me replacements for the right insert for the other pairs I had purchased.
Sine then I have purchased other pairs so I don’t have to keep moving them from shoe to shoe.
Thus far I have been using them for about two years. They are still working great.
I am very happy with Bilt Labs and Highly Recommend their product!!
Best in service and quality for orthotic inserts