Concrete homeowner tool

Driveway & Slab Prep Checklist

Use this before replacing a driveway, patio, garage slab, or pad. It focuses on the prep work that determines whether the finished concrete performs well: removal, base, drainage, thickness, reinforcement, joints, and restoration.

Last updated Jul 11, 2026.

Concrete prep checklist

Plan the work below the finished concrete

Slab type

Project timing

Prep complexity

Prep flags

Settlement cracksExisting slab is cracked, heaved, sunken, or draining poorly.Heavy loadHot tub, vehicles, shop equipment, retaining, or structure use.Drainage problemWater flows toward home, garage, neighbour, or low area.Curb or sidewalkWork touches municipal curb, boulevard, sidewalk, or apron.

Recommended next step

Ask what fixes the cause

The replacement has load, drainage, settlement, or prep questions that should be priced clearly.

Priority

Soon

Flags

Prep before quotes

Measure the slab area and photograph cracks, drainage, slope, access, and nearby finished surfaces.
Ask what material will be removed and how base prep, compaction, and restoration will be completed.
Write down intended use so thickness, reinforcement, finish, and curing expectations are clear.
Photograph cracks, settlement, drainage, garage threshold, curb, sidewalk, apron, and where water goes.
Collect existing photos, rough goals, property constraints, and must-have dates before asking for pricing.
Mark the work area and note any access limits, parking limits, pets, tenants, or work-hour restrictions.

Questions for the concrete contractor

What base material, thickness, reinforcement, joints, finish, and curing method are included?
Are demolition, disposal, excavation, compaction, forms, cleanup, and restoration included?
How will drainage, slope, garage thresholds, and neighbouring grades be handled?
Are removal, disposal, base, compaction, thickness, reinforcement, drainage, apron, and curing included?

Compare these assumptions

Removal and disposal scope
Base, compaction, reinforcement, thickness, and joints
Drainage, finish, curing, cleanup, and restoration
Partial repair, full replacement, and driveway extension

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Why slab prep matters

Concrete failures often start with what happens before the pour: bad drainage, weak base, poor compaction, wrong thickness, missing joints, or unclear demolition and restoration scope.

The output is quote prep, not a permit ruling, engineering decision, health assessment, or final scope. Confirm technical and legal requirements with the relevant authority and qualified professionals before work starts.

Four details to settle before quotes

These are the assumptions most likely to make two quotes look similar while covering different work.

Removal

Existing concrete, asphalt, pavers, roots, soft soil, or unsuitable fill should be part of the scope.

Drainage

Slope, downspouts, trench drains, garage thresholds, and neighbouring grades affect the finished slab.

Base and thickness

Gravel depth, compaction, slab thickness, thickened edges, and reinforcement depend on use.

Finish and joints

Broom, exposed, stamped, saw cuts, expansion joints, and curing should be specified.

Concrete Contractor tool FAQ

What prep should be included before replacing a driveway?

Ask about demolition, disposal, base material, compaction, slope, drainage, reinforcement, thickness, control joints, curing, and restoration.

Why does drainage matter for concrete?

Water moving toward buildings, freezing areas, soft base material, or neighbouring lots can create safety and durability problems. Ask how slope and discharge are handled.

Should concrete quotes include saw cuts?

Ask directly. Control joints or saw cuts are common ways to manage cracking, but the spacing and method should match the slab and contractor recommendation.