The twelve we get asked every week

No. It is the same structural slab with a texture pressed into the surface, so it cracks for the same reasons plain concrete does — shrinkage, base movement, or joints cut too late or spaced too far apart. What is true is that a crack in a decorative surface is more noticeable and more annoying, because you paid for the appearance. That is an argument for insisting on proper base preparation and a planned joint layout on decorative work, not an argument against stamping.

It depends entirely on the colouring method. Integral colour is mixed through the concrete, so it cannot wear off — it lightens slightly as the surface weathers but the colour goes all the way down. Colour hardener is broadcast onto the surface and worked in, which gives a denser, more vivid result in the top layer and will show wear only if the surface is abraded. Acid stain reacts chemically with the concrete and is permanent. Surface-applied dyes and tinted sealers are the ones that fade, and we do not use them on exterior work for that reason.

Decorative concrete should be sealed, yes. The sealer is what keeps colour saturated, resists staining, and protects the surface from freeze-thaw damage in the top few millimetres. Outdoors in this climate, plan on resealing every two to three years, sooner around a saltwater pool and later on a covered surface out of the sun. It is a maintenance cost and it should be in your thinking before you commit to a decorative finish.

It can be, and the sealer is usually the reason rather than the concrete. A film-forming sealer on a smooth stamp is slick when wet. The fixes are straightforward: choose a pattern with genuine texture, and have a grit additive mixed into the sealer. On a pool deck we treat grit as mandatory rather than optional. Anyone who tells you a sealed decorative surface is non-slip without adding anything to it is not being straight with you.

Often, and when it is possible it is the better value. An overlay needs a structurally sound slab underneath — no active movement, no significant settlement, no widespread structural cracking. If the slab is simply tired, discoloured, spalled at the surface or plain and dull, an overlay can transform it for considerably less than replacement. If the slab is moving, an overlay will crack exactly where the slab does, usually within a year. We will tell you which of those you have, and we will decline the work rather than overlay a slab we expect to move.

Closely on direction, not exactly on shade. Concrete colour is affected by the cement source, the moisture content, the ambient temperature during the pour, how the surface is finished and how it is cured — so the same mix design placed on two different days will not be identical. Reputable sample boards are honest about showing a range. Where an exact match matters, the answer is to pour the whole area at once from one delivery rather than to attempt to match later.

A well-executed outdoor living area is one of the better-returning exterior improvements, and the usual industry estimates put recovery somewhere in the region of half to two-thirds of the cost at resale. But that is for work that is well designed, correctly scaled to the house and properly built. An oversized, dated or poorly finished decorative surface can read as a liability to a buyer, because they see something they will eventually have to remove. Restraint tends to hold value better than ambition.

For a typical residential patio: a day of demolition and excavation if there is an existing surface, a day of base and forming, the pour and the stamping in a single day, joint cutting the following day, and sealing once the surface has dried out properly — which in practice means two to four weeks later, not the same week. Sealing too early traps moisture and clouds the finish. The site is usable well before the sealer goes down, so the wait is not as inconvenient as it sounds.

Stamping is texture and it is done while the concrete is still plastic, so it must be decided before the pour. Staining is colour and it is done to concrete that has already hardened, which means it can be applied to an existing slab. They are frequently combined — a stamped surface with an antiquing release and a stain to give depth — but they answer different questions. If you want the surface to look like stone, that is stamping. If you want an existing grey slab to have colour and variation, that is stain.

Partially, and it is worth being realistic. A chip or a spall can be patched and the patch coloured to blend, and on a textured, antiqued surface a good repair is genuinely difficult to find afterwards. A crack across a coloured field can be routed and filled, but it will remain visible on close inspection. Replacing a single panel of a stamped field will never match the rest exactly, for the same reasons a colour cannot be matched later. This is one of the arguments for a bordered layout — a plain field is far easier to repair invisibly.

Yes, with limits that we state before booking. Concrete needs to stay above freezing while it gains early strength, and decorative work has an additional constraint: cold concrete sets slowly, which narrows and delays the window for stamping and can push the crew into working in poor light. Sealing has its own temperature range and will not cure properly below it. We pour through most of a Charlotte winter and we will not pour into a hard freeze or seal in the cold, and we say which of those is holding a date.

Because they are almost certainly not the same patio. The variables that do not appear in a headline price are base depth, slab thickness, reinforcement, whether the colour is integral or a surface product, how many pattern and colour releases are used, whether joints are saw-cut or tooled, and whether sealing is included or extra. A quote that specifies all of those can be compared with another that specifies all of those. A quote that gives a square-foot rate and a pattern name cannot be compared with anything.