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).

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A terraced retaining wall built with Allan Block Fieldstone

Allan Block


Allan Block is an environmentally conscious company that strives to be a leader in the future of “green” building products. Building with more environmentally useful products will increase efficiency and reduce the negative impact we have on the world we live in. As a leader in the industry, Allan Block provides environmental solutions to just about any landscape. Our efforts to provide green construction solutions coincide with the efforts of the U.S. Green Building Council’s LEED® (Leadership in Energy and Environmental Design) Program and other programs of its kind.

 

 


Ashlar Blend retaining wallAB Ashlar Blend® Pattern

The AB Collection of products give a smooth fluid finish to any outdoor living space. Enjoy the beauty and durability of this collection's classic cut stone look that will define your space with style.

Featuring a built-in interlock and setback these blocks are easy to install. The hollow core offers superior drainage and easier handling for a faster installation. The AB Collection of products has been a favorite of wall builders for years and offers the perfect blend of performance and style with the maximum performance.

 


 

Allan Block Europa Collection.AB Europa Collection - Old World Antique

The AB Europa Collection captures the hand-laid stone effect that brings old world charm and distinction to any project in beautiful marbled colors.

The design possibilities are endless. Use the blocks individually or blend them together to create AB Ashlar or AB Abbey Blend patterned walls. The interlocking blocks easily fit together without any materials or tools.

 

 


 

Allan Block Classic cut StyleAB Collection - Classic Cut Style

The AB Collection has been a favorite of wall builders for years and offers the perfect blend of performance and style with maximum performance.

We will be happy to show you the complete line of Cambridge pavingstones and we can deliver everything you need to your jobsite.