New Patio vs. Resurfacing an Old One in New Hampshire

When Resurfacing Makes Sense

Resurfacing — applying a thin overlay of stamped or decorative concrete over an existing slab — can work if the existing slab is structurally sound. That means: no significant cracking, no heaving, no settling, and a base that's stable. If your existing patio has surface wear, fading color, or a pattern you don't like — but the slab itself is flat, uncracked, and solid — resurfacing can be a cost-effective option.

When Resurfacing Is a Bandage on a Base Problem

If your existing patio has cracked, heaved, or settled, the problem is almost certainly the base — not the surface. Pouring a new decorative surface over a slab that's already failing doesn't fix the base. It hides it, temporarily. The same freeze-thaw cycle that cracked the original slab will crack the overlay, usually within a season or two.

In that case, resurfacing is money spent on something that won't last. The honest answer is to tear out the old slab, excavate and engineer a proper base, and pour new.

How to Tell Which Situation You're In

• Hairline surface cracks with no vertical displacement (one side higher than the other) — the slab may be stable enough to resurface
• Cracks with heaving, settling, or separation — the base has failed; resurface and it'll fail again
• A flat, uncracked slab with surface wear only — resurfacing can work
• A slab that moves when you walk on it, or has visible slope changes — the base is compromised; tear out and rebuild

What We Recommend

We'll be honest with you. If your existing patio is a candidate for resurfacing, we'll tell you — even though we make more money on a full rebuild. If the base has failed, we'll tell you that too, and explain why resurfacing won't hold. The only way to know for sure is to have Patrick look at the slab in person.