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SEE IT IN ACTION

#1 best selling stair lift in the USA

Assist Plus Motorized Stair Lift

Assist Plus Motorized Stair Lift

Move safely, protect caregivers, restore independence, and stay prepared with stair-climbing mobility.

$2,795.00 USD
$3,499.00 $2,795.00
Sale $704.00 Sold out
  • 1 Year Warranty
  • 30 Day Returns
  • Free Shipping

Features

  • Built for daily wheelchair transport on stairs
  • Compatible with all manual and children's wheelchairs
  • Supports up to 150kg (330 lbs)
  • Equipped with smart control panel, LED display, adjustable headrest and clamps
  • Customizable climbing performance  adjustable speed, track angle, and reverse support
  • Non-removable high-capacity battery for extended use
  • NOTE: Wheelchair not included

Assist+ Specifications

  • Size: 63 × 20 × 20.4 in (unfolded), 41.7 × 20 × 20.4 in (folded)
  • Weight: 59.5 lbs
  • Load Capacity: 330 lbs
  • Motor: 36V / 200W Brushless
  • Battery: 36V / 9Ah (non-removable)
  • Run Time: Up to 60 floors per charge (~1.3 hours)
  • Charging Time: 6.5 hours
  • Compatibility: Works with most manual wheelchairs (wheelchair not included)
  • Certifications: CE, ISO 13485, ISO 14971, EN 12184, IP54

Who Is This For?

  • Wheelchair users needing regular stair access
  • Caregivers supporting adults or children in manual wheelchairs
  • Families with multi-level homes and no elevators
  • Facilities needing compact stair transport solutions (schools, clinics, etc.)
  • Anyone who already owns a manual wheelchair and needs safe stair mobility

Product Manual

Link: Assist + Manual

Shipping & Returns

We ship nationwide using trusted carriers, with tracking provided once your order ships. Most orders are processed within 1–3 business days. Due to high demand and fulfillment volume, delivery typically takes 10–15 business days.

For more on international shipping, backorders, delivery updates, or returns, please view our full shipping and returns policy here.

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Free Shipping

Anywhere in the US

Price-match guarantee

Safe money when ordering with us

Hassle-free exchange

Receive a slip for exchanges

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1 Year Warranty Included

Issues? We'll send a new replacement!

Trusted by

Why You’ll Love It

Peace of Mind

Compact & Portable

Dignity for Your Loved One

Backed by Safety Testing

Why Every Home Needs It

Peace of Mind

Every caregiver knows the quiet fear of helping a loved one upstairs the what-ifs, the risk of one slip, the nagging worry that you might not be strong enough if something goes wrong. With the Assist Series, that fear disappears. Its stable tracks and controlled motion ensure every step feels smooth and secure, so you can stop worrying about accidents and start trusting the journey.

Why Every Home Needs It

Compact & Portable

Unlike bulky stairlifts or costly renovations, the Assist Series adapts to your life. It folds down neatly to fit in a closet, a trunk, or a corner of the room, and it’s light enough to bring with you between homes or appointments. Whether you’re visiting family, moving into a new space, or just storing it away, its portability makes it practical for real-world living.

Why Every Home Needs It

Dignity for Your Loved One

Mobility isn’t just about moving from floor to floor it’s about self-respect. Being carried or dragged can make a parent or patient feel like a burden. The Assist Series gives that independence back. They’re seated comfortably, lifted with care, and treated with the dignity they deserve. Families love it because it doesn’t just protect the body it preserves pride.

Why Every Home Needs It

Backed by Safety Testing

When it comes to your loved one’s safety, nothing else matters. That’s why every Assist Series model undergoes rigorous testing to meet hospital-grade standards. Non-slip tracks, secure harnesses, and durable builds mean you can trust it every single time. It’s not just a product it’s peace of mind, built and tested for the moments that matter most.

THE DIFFERENCE IS CLEAR

Assist Plus Motorized Stair Lift

Assist Plus Motorized Stair Lift

VS

Manual Carrying

Manual Carrying

Powered motor does the lifting

Risk of injury

Strain on caregiver’s back

Anti-slip tracks ensure stability

Secure for rider

Risk of slips and falls

One caregiver can safely manage up to 330 lbs

Solo operation

Often impossible for one caregiver alone

Built for homes, clinics, and evacuation

Sustainability

Difficult for daily use

Assist Plus Motorized Stair Lift

Assist Plus Motorized Stair Lift

VS

Traditional Stairlifts

Traditional Stairlifts

Ready to use out of the box

Installation

Requires drilling, rail mounting, and contractors.

$2,795

Cost

$10,000+ with labor, permits, and maintenance fees

Fits in a trunk, closet, or can travel between homes

Portable & foldable

Can’t move it if you relocate or travel.

Functions in power outages; evacuation-ready

Reliable ?

Useless during power outages or evacuations

Assist Plus Motorized Stair Lift

Assist Plus Motorized Stair Lift

VS

Other Brands

Other Brands

Up to 330 lbs

Weight Capacity

Typically 200–250 lbs

Up to 80 floors per charge

Battery Range

20–50 floors; frequent charging needed

1-Year standard + Extended options

Warranty

90-day or limited warranty

Virtual onboarding + U.S. service team

Support & Training

Minimal instructions; overseas-only support

COVERED BY WARRANTY

Every Treadlyft stair climber comes with a 12-month full manufacturer warranty no registration required.
For added confidence, you can extend your coverage to 24 months at checkout for a small additional fee.

We also offer a 30-day satisfaction guarantee. If you’re not completely happy with your Treadlyft and it’s in unused condition, return it for a full refund no questions asked.

See our Return Policy for full details.

What's Included

Battery charger

High-efficiency power unit designed to keep your stair-climbing chair ready whenever you need it. It delivers a fast, reliable charge while protecting the battery with built-in safeguards against overcharging, overheating, and short circuits

Emergency Handle

Its placement gives the operator leverage when navigating stairs, and it typically integrates the joystick for precise movement. The grip is shaped for extended use without strain.

Head Rest

Provides critical upper-body support, especially during descent. It stabilizes the occupant’s posture, reducing head sway or discomfort, which is especially useful for patients with limited control or caregivers needing added safety.

Head Rest

Emergency Handle

Battery charger

FREQUENTLY ASKED QUESTIONS

Who is Assist+ designed for?

This model is built for individuals using manual wheelchairs including children and adults. It's ideal for home caregivers, hospitals, schools, and mobility professionals needing safe stair transport without lifting the person out of their chair.

How hard is it to learn?

Not hard at all. Both units have simple fixed-speed controls. Most caregivers master it in under 30 minutes. We also provide a step-by-step manual.

Is it comfortable for the person riding?

The Assist+ includes a headrest, reclined seat, and secure harness for comfort and safety. We advise testing it with the rider before use.

Can I use this alone as a caregiver?

Absolutely. With a little practice, most users (including older or smaller-frame caregivers) can operate either model safely solo. We recommend doing a few practice runs first, without a person in the chair.

Can it fit all wheelchairs?

Yes. Assist+ has fully adjustable clamps, headrest, and support arms to fit nearly all manual wheelchair sizes and shapes.

What’s included in the box?

  • 1x Assist+ unit
  • 1x Charger
  • 1x Lithium Battery
  • 1x Wheelchair Seat Belt
  • 1x Adjustable Headrest
  • 1x User Manual

Will it work with my existing wheelchair?

Yes. Assist+ is universally compatible with most manual wheelchairs. Its adjustable headrest, clamps, and holders are designed to adapt to different wheelchair sizes and occupant heights.

Can it work with powered wheelchairs?

No. These models are only for manual wheelchairs. For powered chairs, please contact us to discuss alternative solutions.

Will it damage my stairs or floors?

No. The tracks are designed to distribute weight and reduce impact.

What are the dimensions of the Assist+?

  • Unfolded: 63”L × 20”W × 20.4”H
  • Folded: 41.7”L × 20”W × 20.4”H
  • Track Length: 44”
  • Turning Radius: 25”
  • Weight: 59.5 lbs

What is the weight limit?

Assist+ supports up to 330 lbs (150 kg) including the user and their wheelchair.

Is the rider fully secured?

Yes. It includes a headrest, adjustable restraints, and safety belts for seated security during use.

Can one person operate it?

Yes. It’s built for solo operation by a caregiver using the smart joystick control.

How long does the battery last?

  • Charge Time: 6.5 hours
  • Usage Time: ~1.3 hours or 60 floors per full charge

How fast does it climb?

It climbs at a fixed speed of 34 stairs per minute. Reverse motion is supported.

Is it noisy when climbing?

Nope. The motor operates below 70 decibels, which is about as loud as a quiet office. Perfect for schools, clinics, and quiet residential settings.

Can it be used outside?

Yes, if the stairs are safe, solid, and dry. The unit has IP54 water resistance but should not be exposed to rain or wet conditions for extended periods.

How steep is the recline during climbing?

The tilt is engineered for balance about 35°. Most users feel stable, but it may take getting used to.

What types of stairs can it handle?

Straight stairs made of concrete, tile, wood, or carpet (with moderate thickness). Not compatible with spiral, curved, or very narrow stairs.

What if I don’t use it for months?

Store it fully charged and in a dry place. The lithium battery holds charge well and lasts 1+ year (500 cycles).

Have a question?

COMPLEMENTARY PRODUCTS

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