Fix it yourself
Concrete Mason repairs you can do yourself
6 concrete mason problems a careful person can handle at home — and the point where each one becomes a job for a pro.
- You can do
- 6
- Pro-only
- 0
- Typical time
- 120 min – 8 h
- 01Open
Brick mailbox column leaning or crumbling
Put a level on two faces and rock the column gently: a column that moves at the base has a footing or soil problem; one that is solid but crumbling at the top has a water problem.
moderate 2–6 h· $40–120 in mortar, concrete and a cap
- 02Open
Chimney mortar crumbling or deteriorating
Inspect from the ground with binoculars first, then from a ladder set beside the chimney — not on the roof — and note whether the damage is a few joints or every joint.
hard 3–8 h· $30–80 in mortar, sealant and repellent
- 03Open
Concrete Patio Scaling and Flaking
Pressure-wash the slab and scrape every loose flake with a wire brush until the surface is sound; resurfacer over loose concrete peels within a season.
moderate 3–6 h· $60–200 in resurfacer and sealer
- 04Open
Concrete Spalling
Tap around each spall with a hammer: a hollow sound means more surface is about to come off — chisel back to solid, ringing concrete.
moderate 2–5 h· $30–100 in patch, bonding agent and sealer
- 05Open
Crumbling concrete steps
Chisel away every loose piece until you hit solid concrete that rings when tapped; a patch on crumbling concrete falls off within a season.
moderate 2–5 h· $30–80 in patch, bonding agent and sealer
- 06Open
Exterior brick spalling and crumbling
Find the water: spalling clusters below a leaking gutter, at a chimney, at ground level where the wall stays wet, or under a sealer or paint that trapped moisture — fix that first or the new bricks spall too.
moderate 2–6 h· $40–150 in bricks, mortar and repellent
When you do need a concrete mason
Compare listed pros by rating and get free quotes.
Open the directoryWhat it costs
Typical rates by country, so you can compare DIY parts against a pro's invoice.
Cost guideDo this for a living
These are the calls a concrete mason takes every week. Licensing, training and where the work is short of people.
How to become a concrete mason