Prices, Promotions, styles, and availability may vary. Our local stores do not honor online pricing. Prices and availability of products and services are subject to change without notice. Errors will be corrected where discovered, and Lowe's reserves the right to revoke any stated offer and to correct any errors, inaccuracies or omissions including after an order has been submitted.

FastSet Mortar 20 -lb Mortar Concrete Repair accessory

Ratings & Reviews for High Performance Cement by Quikrete FastSet Mortar 20 -lb Mortar Concrete Repair accessory

4.5
188
Review
 4.5 out of 5
188 Reviews


87% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

This fast-setting mortar repair mix received mixed reviews. Many customers found it easy to use and praised its quick setting time, strong adhesion, and ability to match existing surfaces. However, some reported issues with the product hardening too quickly before application, the bag containing dry chunks, and inconsistent quality. When used correctly, the product can provide an effective and durable concrete, brick, or stucco repair, but customers need to be cautious about mixing only what can be used in a short timeframe and carefully following the instructions to avoid common problems.

Customer review summary generated by AI, including incentivized reviews.
188 Customer Reviews

Good at filling cracks

Would Recommend

Works good. Fills cracks in mortar. Read instructions carefully. This stuff sets up fast! Like that there are 2 bags of mortar in the bucket so you can get 2 jobs out of it if you choose to.

May 8, 2026
Verified Purchaser
Was this Review Helpful ?

Nice product

Would Not Recommend

Easy to use

May 3, 2026
From FastSet Mortar 55 -lb Mortar Concrete Repair accessory Verified Purchaser
Was this Review Helpful ?

Mix to consistancy that works for the job

Would Recommend

Worked great for filling in old gaps in block foundation

April 30, 2026
From FastSet Mortar 55 -lb Mortar Concrete Repair accessory Verified Purchaser
Was this Review Helpful ?

Works great

Would Recommend

Works well

April 27, 2026
From FastSet Mortar 55 -lb Mortar Concrete Repair accessory Verified Purchaser
Was this Review Helpful ?

Simple to use concrete patch

Would Recommend

Mix ready! No third-part additives needed. works in vertical applications. Fixed non structural corner-pop. DYI so easy and inexpensive.

February 8, 2026
Verified Purchaser
Was this Review Helpful ?

Vertical walls with ease

Would Recommend

This was my first time using vertical cement. I have cemented many, many times and it took many days of small patching and drying and small patching with regular mortar, but this was incredible. I was able to put large handfuls over and over to fix a wall around a church which was not in good shape at all. I repaired it all in one day in just hours. This wall had a twenty foot section almost gone and several other areas needing repair. I thought it was beyond repair. It cost more than...

November 4, 2025
From FastSet Mortar 55 -lb Mortar Concrete Repair accessory Verified Purchaser
Was this Review Helpful ?