ProMason Supply · Kansas City
We make Portland-cement-free PHL lime mortars for historic brick and stone, plus era-matched Type O and Type N, plasters, cleaners, and the Clean · Repair · Protect system. The shop started because our restoration crew could not buy the material the buildings required.
Kansas City showroom — open to the public.
Most bags on the truck are mixed for new construction. Old walls were built to breathe and to give at the joint. When the joint is harder than the unit, the brick or stone becomes the piece that breaks.
We exist so the right box is as easy to get as the wrong one — specified to the age of the wall, mixed with local sand, and used on real restoration jobs before it ships.
Why hard cement fails old brick → How to choose by building age →
Homeowners & building owners
You have a wall that predates the hardware-store bag. Soft historic brick fails when the joint is harder than the unit. Start with the age of the building. Use a quart or gallon for a chimney, a foundation, or a test panel.
Contractors
Specified lime work is not commodity pointing. Clean · Repair · Protect is a three-step historic-masonry system. Your crew opens the right box from building age. Clean and Protect are billed as their own lines — not buried in the pointing price.
The shop
In 2011 Joshua Dunn founded Alliance Masonry Restoration in Kansas City as a boutique preservation contractor, working to Department of the Interior and State Historic Preservation Office standards.
The recurring jobsite problem was supply. Authentic lime mortar — without Portland in the historic formulas, consistent enough to specify, available fast enough to use — was hard to buy. ProMason Supply is the materials company built to solve that.
Alliance is our Kansas City restoration crew and the shop where formulas get used before they ship. If it does not work on the wall, it does not go in the catalog.
Kansas City showroom floor — color walls, contractor boxes, open to the public.
PHL 2.0, 3.5, and 5.0 are formulated without Portland cement. Later-era Type O and Type N cover buildings from the transitional and modern periods. Shop by the age of the wall, not the name on a bag.
You add the sand. That keeps freight down, lets the joint take the color and grain of the region, and leaves color packets separate so you can tune in the field.
Small sizes for samples, chimneys, and test panels. Contractor bulk boxes and pallets for crews. Complimentary pallet freight with liftgate in the continental US.
Kansas City showroom and fulfillment. The showroom is open to the public. We ship weekdays and aim to reply within one business day. Monday–Friday, 8:00 a.m.–4:00 p.m. CST. info@promasonsupply.com
4.92★ from 163 verified reviews
“Finally able to get the right mortar for repairs on my 150 year old brick house. Great to be able to buy small quantities so easily.”
Julia Ho — verified review
“The people here went out of their way to help me find the right mortar, answered all my questions and even asked for pics to get it right.”
Edward Rea — verified review
“The repointing product, the details on use and the delivery process was absolutely stellar. I couldn’t have asked for better.”
Mark Winn — verified review
Founder
Joshua founded Alliance Masonry Restoration in 2011 and still works as a preservation contractor. ProMason Supply started because the materials market was built for new construction, not for the historic brick and stone on the job.
The supply company and the restoration crew stay connected on purpose. What gets sold has already been used on a wall.
When the wall does not fit the chart, write us.
