If your concrete driveway is looking tired, stained or cracked, the big question is whether you can resurface it or whether it needs to be ripped out and replaced. Getting this right matters — resurface a slab that’s structurally finished and you’ll be doing the job again in a year; replace one that only needed a facelift and you’ve spent thousands more than you had to.
Here’s how to decide honestly, based on what’s actually going on under your feet.
What each option really means
Resurfacing (also called an overlay) bonds a new layer of concrete or a decorative coating over your existing slab. It transforms the look and gives you a fresh, sealed surface — but it relies on the slab underneath being sound. It does not fix structural problems.
Replacing means breaking out the old slab, fixing the base, and pouring a brand-new driveway. It costs more and takes longer, but it’s the only real fix when the foundation has failed.
The simple rule: resurfacing solves surface problems; replacing solves structural problems.
When resurfacing works
Resurfacing is a great, cost-effective choice when the slab is structurally sound but cosmetically worn. Good signs you’re a candidate:
- Surface is stained, faded, or has a worn broom finish
- Only hairline or shrinkage cracks (thin, shallow, not moving)
- The slab is sitting flat and level — no lifting or sinking
- No large sections rocking or hollow-sounding
- The base is stable and drainage is okay
If that’s your driveway, an overlay can give you a near-new surface — and a chance to upgrade the look. See our concrete resurfacing page for finish options.
When you must replace
Resurfacing over a failing slab just hides the problem until it cracks through the new layer. Replace when you see:
- Structural cracks — wide, deep, or stepped cracks where one side sits higher than the other
- Heaving or sinking — sections lifting or dropping (often reactive CQ soils or a washed-out base)
- A failed or moving base — hollow, rocking slabs or visible voids underneath
- Crumbling / spalling through the full depth, not just the surface
- Repeated cracking that keeps returning after past repairs
- Poor drainage causing water to pool and undermine the slab
These are foundation issues, and no coating can fix a foundation. A fresh, properly based and reinforced driveway is the honest answer here.
Cost and lifespan compared
| Factor | Resurface / Overlay | Replace |
|---|---|---|
| Cost | Lower — a fraction of replacement | Higher — full removal + new pour |
| Disruption | Less — quicker turnaround | More — excavation and curing time |
| Fixes structural issues? | No | Yes |
| Lifespan | Long, if the base is sound | 30–40+ years |
| Finish options | Many (see below) | Full range |
These are indicative comparisons, not quotes — the right number depends on your slab, which is why we inspect before advising.
Finishes available with an overlay
If resurfacing is right for you, you’re not stuck with plain grey. Overlays can deliver:
- Coloured and stencil finishes
- Stone or paver-look patterns
- Modern textured, slip-resistant surfaces
- A fresh sealed coat that resists CQ sun and stains
So resurfacing is as much an upgrade as a repair.
Your honest decision checklist
Walk your driveway and ask:
- Is it level? Any lifting or sinking points to a base problem → lean replace.
- How wide are the cracks? Hairline → resurface. Wide, deep or stepped → replace.
- Does any section rock or sound hollow? Yes → replace.
- Is water pooling or running under the slab? Yes → likely replace (or fix drainage first).
- Is it just stained, faded or worn? Yes → resurface is ideal.
- Have past repairs failed? Yes → replace.
If you answered “resurface” to most, an overlay will likely serve you well. If structural warning signs showed up, budgeting for replacement now saves money long-term.
Not sure which camp you’re in?
The tricky part is telling a cosmetic crack from a structural one — and that’s where an experienced eye saves you money either way. We’ll come out, assess the slab and base, and give you a straight recommendation, even if that recommendation is the cheaper one.
Get a free quote and we’ll tell you honestly whether your driveway needs resurfacing or replacing.