The Family Store with So Much More

Merwin Mason Supply Co.,Inc. was started in 1970 in an old tobacco barn in South Windsor. It later moved to the Chapel Road location where it is today. The company was started by Merwin Pola and his family with just one small pickup truck. Today we have a large showroom and a fleet of trucks with fork-lift unloaders for fast and safe delivery. We are still a family run company and strive to keep that "small business" quality that that gives you the outstanding, personal service you have grown to know and appreciate for the past 30 years. More...


Don't see what you are looking for? Give us a call or come in to our show room and let us show you how we can help get your project started!

Our showroom and yard pickup hours are:

Monday thru Friday
7:00am - 4:00pm
Saturday 8:00 - 12:00 seasonally (call first).

More...

Bulk Products


At Merwin Mason Supply, we carry all of the bulk products you need to get your job completed easily and within your budget. We carry ¾ crushed stone dust, sand in bulk and sand in bags as well as concrete mix in bags.

We carry cements

In standard and custom colors:

  • Portland
  • LaFarge
  • Ironclad, Type 1-2
  • Type 1
  • White Portland

Mixing morter in a plastic bucket with a drillWe carry Mortar

In standard and in custom colors:

  • Spec Mix
  • Pro Masonry
  • Ironclad
  • Lehigh
  • La Farge
  • White Mortar

Man applies stucco to exterior wallWe carry Stucco

  • California Stucco
  • Pro Masonry Stucco
  • Spec mix Stucco

Come in to our show room and let us show you how we can make your stucco in the exact color you want with our custom color process. We also offer standard colors.

We carry ready mix mortars and concrete

  • Spec Mix
  • Pro Masonry
  • Quickcrete
  • Spec Mix Stone Veneer Mortar
  • sand mix concrete mix
  • high-strength concrete
  • rapid-setting concrete
  • Type N concrete
  • Type S concrete

We have standard and custom colors.

We also carry:

Sunset Georgetown Field Stone Veneer

Alliance Polymeric Sand

Polymeric sand is designed to be placed between the joints or seams in pavers used in patios, driveways, walkways and other hardscapes. Polymeric sand improves the interlock between pavers and increases the durability of the surface, preventing penetration by weeds and ants as well as washouts if the surface is innundated with water.

The result is a hardscape that is less permiable to water and in the winter, your hardscape won't heave up when water gets underneath your pavers and freezes and thaws. We carry Alliance Polymeric Sand because we have tested this product and know it will perform very well in your installation. For complete installation instructions, please watch the video below:

Back to top