Patio paving: when to DIY and when to hire a pro

A patio is one of the more DIY-tempting paving projects: it’s smaller than a driveway, doesn’t need to bear a car’s weight, and the materials are available at most builders’ merchants. Whether that temptation makes sense depends on a few specifics most people don’t think about until they’re halfway through.

What a DIY patio actually involves

Laying a patio properly means excavating to the right depth, laying and compacting a sub-base (typically MOT Type 1), adding a bedding layer of sharp sand or a mortar bed depending on the slabs, setting the slabs to a consistent fall so water runs away from the house, and pointing the joints. Each step matters: skip the compaction and slabs rock; get the fall wrong and water pools against your wall instead of away from it. None of this is beyond a capable DIYer, but it takes longer than people expect, and mistakes are only visible once the slabs are down.

Where DIY makes sense

A small, flat patio, especially one not directly against the house, with ground that isn’t heavy clay or waterlogged, is a reasonable DIY project if you’re willing to hire the right equipment. A plate compactor for the sub-base is essential, not optional; hand-tamping a base for anything beyond a tiny area won’t compact it enough to stop future settling. Budget more time than you think: a weekend project often becomes two.

Where it’s worth hiring a pro instead

Size and slope change the risk profile quickly. A larger patio multiplies the consequences of a base mistake, and a sloped garden makes getting the fall right (so water drains away rather than toward your foundations) much harder without experience. Patios built right against a house wall carry the most risk, since a drainage mistake there can mean water finding its way into a damp course rather than just pooling on the surface. If your site has poor drainage already, or you’re laying porcelain or calibrated stone that needs a very level, consistent base to avoid lippage between slabs, professional installation earns its cost.

DIY vs professional, at a glance

Factor	DIY	Professional
Cost	Materials plus equipment hire	Materials plus labour, higher total
Time	Often longer than expected, weekends stretch into weeks	Fixed timeline, usually days
Sub-base quality control	Depends entirely on your own care and equipment	Consistent, experienced compaction and fall-setting
Best suited to	Small, flat, simple areas away from the house	Larger areas, slopes, sites near the house, premium materials
Risk if it goes wrong	You redo it yourself, or pay someone to fix it later	Should be covered by a workmanship guarantee

A middle-ground option

Some homeowners handle the demolition or clearance of an old patio themselves to save on labour, then bring in a professional for the sub-base, laying and pointing, where the skill and equipment matter most. It’s worth asking a contractor whether they’ll quote for just the technical part of the job if you’re keen to save where you reasonably can without cutting corners on the base. Whichever route you take, our guide to preparing your property before paving work starts covers what to clear and check beforehand.

Tools and materials you’ll need if you do go DIY

Beyond the plate compactor, you’ll want a spirit level or laser level to keep the fall consistent across the whole area, a rubber mallet for bedding slabs without cracking them, and a way to cut slabs cleanly for edges and awkward corners, either a hired stone saw or a good angle grinder with the right blade. Sharp sand and MOT Type 1 sub-base material are both available from builders’ merchants, and it’s worth over-ordering slightly rather than running short mid-project, since a delivery delay partway through a dig-out is one of the more common reasons a weekend job stretches into two.

Signs you’ve taken on more than expected

If you’re two days in and the sub-base still isn’t compacted evenly, if water is already pooling in a test area before the slabs go down, or if you’re not confident about which way the fall should run relative to the house, it’s worth pausing and getting a professional opinion before laying a single slab. Correcting a badly prepared base before the surface goes on is far easier and cheaper than lifting finished paving to fix what’s underneath.

If you decide the job is better left to a professional, our patio paving contractors in Cheltenham cover everything from small garden patios to large porcelain and stone installations. Compare local options through our directory, ranked using the method on our methodology page.