Patios in Cadnam and Bartley

Paving around sliding doors and low thresholds, kept below the damp course and falling the right way.

The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.

Most of the houses here went up in the late 1960s and early 1970s, and a lot of them came with a wide sliding door onto the garden and a threshold sitting barely above the ground. That single detail decides more patio jobs in Cadnam and Bartley than any other.

The calls follow from it. Paving laid flush with the door so rain now runs back inside. A terrace that has been topped up twice over the years until it sits level with the damp course. Slabs that rock, joints that have gone, and a step down into the garden that has dropped away from the paving.

We come out, lift a slab, measure where the damp proof course is and take levels off the house before anything is priced. That tells you honestly whether the existing terrace can be lifted and relaid or whether it has to come out. You get one written itemised quote with the dig, the muck away, the sub base, the paving, the edges and the jointing on their own lines, after a free site visit.

The work

Thresholds, levels and everything under the slabs

Porcelain patio slabs laid to a fall with a gravel border alongside
Laid to a fallWater goes away from the house, not along the wall.

Taking the old one up. The original 1970s flags, an old concrete apron, brick paviours or a raised bed built against the wall all come out first. We dig to firm formation, clear roots and made ground, and the spoil is loaded into a grab lorry or a skip and leaves with us. Where a previous patio has been laid on top of an older one, both usually have to go.

The sub base. Geotextile separator over soft ground, then MOT Type 1 in compacted layers of about 100mm rather than one deep dump of hardcore. That single decision is the difference between a patio that stays flat and one that is rocking in three winters.

The threshold. Where a sliding door sits low, the paving goes down with a drainage channel across the opening and a positive fall away from it, so the finished surface can stay clear of the damp course. Approved Document C is why we hold two courses below the DPC wherever the garden allows, and a channel is how you get that clearance back when it does not.

Porcelain. Calibrated twenty millimetre porcelain is what most people here choose now. It is dense, takes almost no water and keeps its grip wet if the finish is textured. It is laid on a full bed of mortar over a slurry primed back, never on dabs, because the voids under a dabbed slab crack it.

Stone. Sandstone is the warmest and the easiest to work, but porous, so it stains and greens on a shaded side. Limestone is quieter and marks with iron. Granite is dense and hard wearing. Travertine is a poor choice in a Forest winter. Hand cut stone varies in thickness so the mortar bed does the levelling; calibrated stone is sawn to a single depth.

Falls and where the water goes. A patio falls away from the building, never along the wall. From there the water needs somewhere to go on your own land: an existing gully proved to still run, a soakaway where the ground drains, or a permeable build with an open graded base and permeable jointing so the runoff never reaches the road.

Edges and steps. Edging bedded and haunched in concrete, a coping on a low retaining wall where the lawn stands higher, a kerb line where the paving meets grass, and a gravel border along the house. Steps are set out before the paving, because on a bungalow plot they set the whole level.

Jointing and repairs. Hand pointing in a matched mortar or a brush in compound worked into a full joint; a grout made for dense units on porcelain. We also do the small jobs alone: a rocking slab re-bedded, a sunken bay rebuilt, cracked units swapped, failed jointing raked out and a slippery terrace cleaned and re-graded.

How it runs

From your call to a written price

A finished porcelain patio in the wet, showing how the surface drains and where the joints sit
Judged in the wetRain shows the falls and the joints that a dry day hides.

Same team from first visit to last, one person to ring, and no sub-contracting your work out to somebody you have never met. The quote is itemised, not a figure on the back of a card: excavation and muck away, the sub base, the falls and where water goes, edgings and steps, the slabs themselves, and jointing on separate lines, so you can compare it properly against anyone else's.

Nothing is left open or unusable overnight. The site is swept at the end of each day rather than the end of the job, and what comes out leaves with us. If something turns up once we start that nobody could have seen, you get a photograph and a price before we carry on.

The New Forest National Park Authority is the planning authority for these villages, and its design scrutiny is tighter than a district council's on anything visible from the road, although a patio behind a house is normally permitted development. There are around ten listed entries in the area and no conservation area over the housing itself; the NPA property map shows what applies to an address.

Cost

What decides the price of a patio

No rate per square metre, because the slabs are the part you choose and the smallest part of the price.

Getting to it. A 1970s detached house with a wide side gate, a bungalow with a car port to barrow through, and a cottage on the lane with a passage a metre wide are three different jobs before any paving is picked. Everything comes in and goes out through the garden, often through a side gate or the house. A patio you can barrow to directly is a different job from one where every slab is carried. The work at height rules still apply to the dig and the machinery.

What is coming out before anything goes down. An old concrete slab, a raised bed, tree roots or made ground all have to be dug out and taken away, and that is priced by the load rather than by the metre. The dig is where a patio quote is won or lost.

Falls, levels and the damp course. A patio has to fall away from the house and finish at least two courses below the damp proof course, and getting that right often means steps, a retaining edge or a drainage channel. Laying a new patio up against a wall at the wrong level is the single most expensive mistake on this kind of job.

Comparing quotes? Ask how deep the dig goes and what sub base is specified, whether the slabs are laid on a full wet bed or on dabs, what the falls are and where the water goes, whether edgings and steps are included, and what the jointing compound is. Two quotes for the same job are usually two different jobs.

If it has become a hazard

A patio that has lifted, sunk or turned slippery

Ring rather than use the form. A slab that has lifted at one corner or a step that has dropped is a trip, and a north facing patio in winter can be genuinely dangerous. We can usually lift and re-lay the worst of it quickly, then look properly at whether the base under the rest has gone. If water has started coming in at the sliding door, ring, because that is a levels problem and it gets worse every time it rains. The phone is answered 24 hours for emergencies; scheduled work runs Monday to Friday, 8am to 6pm.

Call now: 07435 839745

Worth knowing

The sliding door is the thing to solve first

The stock here is largely late 1960s and early 1970s, with a big share of detached houses and bungalows, and that generation of house was built with generous glazing onto the garden and a very shallow step out. Nobody planned for the patio to be topped up twice in fifty years, which is exactly what has happened to a lot of them.

The result is a terrace sitting level with, or above, the damp proof course. Rain that lands on the paving has nowhere to run except back at the wall and under the door, and the brickwork behind it stays wet because the paving is bridging the very thing that was there to stop it. Once that has been going on a few years you get damp on the inside face, not just a puddle outside.

So on this housing the first thing we work out is not the material. It is where the damp course sits, how much fall we can build in from the door to the garden, and whether the answer is a drainage channel across the threshold, a step down, or lowering the whole terrace. Get that right and the paving choice is genuinely a free one. Get it wrong and the best porcelain on the market will still send water into your kitchen.

Who you are dealing with

A local firm you can check

We cover Cadnam, Bartley, Winsor, Copythorne and out towards Ashurst and Netley Marsh, broadly SO40, under the New Forest National Park Authority. You are dealing with Bournemouth Roofing & Building, the trading name of Bournemouth Roofing & Building Ltd, registered in England and Wales, company number 15471719, which you can look up in a minute. Thomas Hannen's business, and he is the one who comes out to price the job, not a salesman. A verified customer's 10 out of 10 on Checkatrade. The visit and the written quote are both free.

Questions

Cadnam and Bartley questions we get asked

My patio is level with the back door. Is that a problem?

It usually is. Paving at or above the damp course lets water track back into the wall. A channel across the threshold, or dropping the terrace, gives you the clearance back.

Can you lay over the existing 1970s slabs to save the dig?

We would rather not. Laying on top raises the level again, which is the original problem, and you inherit whatever base is under them. The dig is the part worth doing once.

What is the channel across the door actually for?

It catches the water before it reaches the threshold and takes it away sideways to a gully or a soakaway. It is how you get a nearly level walk out without paving up the damp course.

Is porcelain slippery around a garden step?

Not if the finish is right. Textured external porcelain grips well wet. What makes a step dangerous is algae on a surface that never dries, which is a falls problem.

How much mess is there in the garden?

The dig makes the mess and it is over in a day or two. Boards go down on the lawn, the site is swept at the end of each day, and the spoil leaves rather than sitting in a pile.

Free quote

Get the levels checked before you buy any slabs

Thomas comes out, finds the damp course, works out the falls and prices the whole job in writing. The visit and the quote are free.