Basement Wall Mortar Joints

Block wall mortar joint finishing

Are you seeing nice uniform concave mortar joints in your basement walls? This pushes the mortar in and compacts it plus it looks great!


We've found walls with unfinished or poorly done joints to be less waterproof with more mortar damage.  If it looks unfinished inside the basement, the outside finish is probably worse.  With time, water and the freeze/thaw cycle will find ways into the blocks and eventually your basement

Drawing of different concrete blocks used for wall construction
By Johnny Lakes June 11, 2026
Some of the different types of blocks used in wall construction from the 1950's
Block foundation wall with crack showing how water can get into the basement
By Johnny Lakes June 11, 2026
Block foundation wall with crack showing how water can get into the basement
Pouring a concrete footing in 1940
By Johnny Lakes June 11, 2026
Historical photo showing a basement wall footing being poured with concrete in 1940
Drawing of rubble basement wall construction
By Johnny Lakes June 11, 2026
Rubble Basement Wall Construction showing how the rock is stacked to build the wall.
Dimple board basement waterproofing
By Johnny Lakes June 11, 2026
Dimple board used inside basement on walls for waterproofing
Side view of a block basement wall
By Johnny Lakes June 11, 2026
Side view of a common basement wall using blocks for construction
Window well filled with melting snow
By Johnny Lakes February 26, 2026
Melting snow means wet basements in Minnesota.
Clogged yard drain
March 24, 2025
Yard drainage pipe is filled with dirt, rain water is collecting near the home leaving this customer with a wet basement.
Foundation leaking water
By GLWP September 1, 2022
I Have Drain-Tile But I Still Have A Wet Basement!
Vertical crack in poured foundation wall
By GLWP August 26, 2022
Basement Waterproofing Using Above Floor Channels and Dimple Board

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