Chamberlain 1/2 HP Belt Opener – Model #B503 (2 Remotes)

The B503 is an ultra-quiet and strong steel-reinforced belt drive garage door opener that’s easy to install and operate. Perfect for attached garages, it’s precision engineered for years of reliability and quiet, smooth performance you can sleep through. Powered by Chamberlain’s Lift Power System, it delivers the highest lifting capacity compared to the ½ power class.

Designed and engineered for safety and security, it features enhanced Triband frequency technology for superior range and performance, Security+2.0 code encryption, Posilock protection against forced entry, dual-function wall control, and more. Unit accepts two 100 watt max non-halogen or 26 watt CFL light bulbs (not included). Designed specifically for 7 ft. garage doors – extension kits required for 8 ft. and 10 ft. doors.

ULTRA QUIET AND STRONG BELT DRIVE

Steel-reinforced belt drive and constructed with high-grade materials for years of reliability and quiet, smooth performance—perfect for attached garages.

Chamberlain 1/2 HP Belt Opener

MED CHAMBERLAIN LIFT POWER SYSTEM

Powered by Chamberlain’s MED Lift Power System, the B503 delivers lifting force equivalent to 1/2 HP, the highest lifting capacity compared to the 1/2 power class for effortless lifting and reliable performance you can count on.

UPGRADE TO SMARTPHONE CONTROL

Open, close, and know the status of your garage door from anywhere with your phone or tablet. Upgradeable to Smartphone Control with purchase of Smart Garage Hub (MyQ-G0301 required and sold separately).

SUPERIOR RANGE REMOTES

Exclusive Triband technology boosts remote range up to 1,500 feet for a quicker entrance and exit.

TRUSTED SAFETY AND SECURITY

Unmatched Security+2.0. 100 Billion code encryption protects against hacking, and Posilock anti-theft protection assures that once the door closes, it stays locked.

HIGHEST QUALITY MATERIA

Built from High-Grade materials.

WARRANTY:

10 Year – Motor

Lifetime – Belt

Hear From Our Happy Customers

Daniel came out and was very professional. He advised and made recommendations that I will implement. However he changed the damaged component and tested the door. Perfect. I will definitely call them back to make the recommeded changes as soon as the holidays pass.

 Luis Machado
Luis Machado

Exceptional, explained in detail all information I needed

Frank Retkowski
Frank Retkowski

Highly recommend! We just moved into our home and had a few things come up, so we started looking for honest pricing to get our garage springs and cables fixed. Quick Response was exactly what we were looking for! Instead of saying, “We don’t know how much springs cost,” they gave us a clear estimate right over the phone. Of course, they mentioned that the price could change if more issues were found, but we appreciated their honesty and transparency.

Lee Vang
Lee Vang

Friendly and courteous staff. Quality work. Thank you!

Michael Miller
Michael Miller

Danny was legit awesome! He was timely, supportive and knows his stuff! Personable and took all the old stuff with him! I’d refer him a hundred times over!

Chris Eldred
Chris Eldred

Keegan was very pleasant and quickly replaced a broken roller on one of our doors, lubricated all of our doors and checked the operation of all of them. He completed all of this very quickly and for a fair price. We were very, very happy with his work and I would highly recommend him.

 Pat Moore
Pat Moore

The service was quoted up front, transparent, and repairs were done same day even ahead of schedule. Bryan was knowledgeable and a pleasure to work with.

 Bryce Richardson
Bryce Richardson

Scheduling was super easy, service was fast, Keegan the service technician was wonderful. He made sure the newly installed smart garage door opener equipment was all working properly before leaving the property.

 Casa La Lola
Casa La Lola

You couldn’t ask for a more professional, responsive and honest business. Bryan, Daniel and Dwayne came by and worked efficiently to solve our garage door issue. And with firm handshakes and smiles to boot. Quick Reaponse they certainly are - with a can-do attitude. Thank you so much, Bryan and team. We are grateful for your help!

 Amanda Cox
Amanda Cox
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Hours

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Address

2401 W Phelps Rd

Suite B2

Phoenix, AZ 85023

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