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.

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The housing here is mixed, from older cottages to post-war detached houses and bungalows, and plenty of the later ones have a wide sliding door onto the garden with a threshold barely above the ground. That threshold height shapes how a patio in Cadnam and Bartley has to be built.

The faults on a Cadnam and Bartley patio 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 to Cadnam and Bartley, 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 (one of our own jobs, shown for patios in Cadnam and Bartley)
Laid to a fallWater goes away from the house, not along the wall. Photo from one of our own jobs.

The old one comes up first. In Cadnam and Bartley the original 1970s flags, an old concrete apron, brick paviours or a raised bed built against the wall all come out. 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 a sound choice in Cadnam and Bartley 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 Cadnam and Bartley 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

Building a patio in a Forest garden: what happens and when

A finished porcelain patio in the wet, showing how the surface drains and where the joints sit (one of our own jobs, shown for patios in Cadnam and Bartley)
Judged in the wetRain shows the falls and the joints that a dry day hides. Photo from one of our own jobs.

Thomas walks your Cadnam and Bartley back garden with you and pegs out roughly where the patio could go. He checks the damp proof course along the back wall, how the lawn falls away, what the soil is like a spade down, and which way rain will run off.

Gardens round Cadnam and Bartley are mostly generous and many sit under big trees, so he also notes where shade will fall, because a stone that stays damp in shade can turn slippery. The quote lists digging out and muck away, the sub-base, falls and drainage, edgings and steps, the slabs, and jointing, each priced on its own.

Digging, laying and pointing come under one written quote. Machines and materials come through the side gate or over the drive, with boards laid across the lawn. No trench is left open at night, the garden is tidied before we leave, and the spoil goes with us. If digging turns up an old concrete base or a drain, work pauses until you have seen a photo and a price.

A patio behind the house is normally permitted development. Planning is in the hands of the National Park Authority, and in Bartley, which is covered by a conservation area, or on a listed home, raised terraces and anything seen from a lane get a closer look. The NPA property map shows what applies to your address.

Cost

Where a patio's price really comes from

Patios in Cadnam and Bartley are not priced per square metre. The slabs are the part you pick, and seldom the biggest cost.

Digging out. An old concrete pad, a raised bed, oak or conifer roots, or ground made up with rubble all have to be broken out and carted off, and that goes by the load. On Cadnam and Bartley clay the sub-base has to go deeper and be compacted harder than it would on sand, or the patio shifts as the ground shrinks in summer and swells in winter.

Height against the house. The finished surface has to sit two brick courses or more below the damp proof course and fall away from the wall. If the garden rises towards the house, that means steps, a retaining edge or a drainage channel, all of which take time.

Barrowing distance. A 1970s detached house with a wide side gate lets a dumper through. A bungalow with a car port to get round, or a cottage with only a narrow passage, means every slab goes in by hand.

Stone and bedding. Porcelain, sandstone and concrete slabs each need their own bed and jointing. We lay on a full wet bed, never dabs, which costs more and lasts.

Ask a rival quote how deep the dig goes and on what sub-base, bed or dabs, which jointing compound, and where the rainwater goes.

If it has become a hazard

A slab that has lifted or a patio gone green and slippery

Beneath big trees a Cadnam and Bartley patio can stay wet all winter, grow algae and get slippery, and a lifted slab or sunken step will trip someone in any light. Stand a pot or a board over the worst spot and keep children off.

If rain is getting in at the back door or a sliding door, phone rather than use the form, because that is a levels fault and each downpour makes it worse. First visit, we take up and re-bed the dangerous slabs or cut in a temporary channel, then check whether the base under the rest has given way. Scheduled work runs Monday to Friday, 8am to 6pm. For a hazard, phone, and if no one picks up expect a call back once we are free.

Call now: 07435 839745

Worth knowing

The sliding door is the thing to solve first

The stock here is mixed: roughly a quarter was built before 1919, about a fifth between the wars, and most of the rest after 1945, with a big share of detached houses and bungalows. Post-war houses often have generous glazing onto the garden and a very shallow step out, so a patio topped up over the years can creep towards the door sill.

The result is a Cadnam and Bartley 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 housing in Cadnam and Bartley 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

Who is building your patio

We come 17.5 miles from our Boscombe base to Cadnam, Bartley, Winsor and Copythorne, and out towards Ashurst and Netley Marsh in SO40, where planning is the New Forest National Park Authority's. Bournemouth Roofing & Building Ltd is registered in England and Wales, company number 15471719. Before you book a visit in Cadnam and Bartley, you can read our customers' Google reviews, word for word, on our reviews page.

Thomas Hannen owns and runs the firm, and he is the one who marks out the patio with you and writes the price. There is a verified customer's 10 out of 10 on Checkatrade. The visit to your garden is free, and so is the itemised written quote. The same low threshold often sits at the front door, and driveways in Cadnam and Bartley are set to it in the same way.

Planning at a glance

Do you need planning permission in Cadnam and Bartley?

Most repairs in Cadnam and Bartley need no application at all. What decides whether a change to the outside of your house does is who the council is, whether a conservation area or a listing applies, and whether the place sits in a protected landscape.

The planning position in Cadnam and Bartley, from council and national records.
Question In Cadnam and Bartley
Who decides New Forest National Park Authority is the planning authority for Cadnam and Bartley. New Forest National Park Authority's heritage pages set out what it controls.
Conservation area Yes: Forest North East Conservation Area. Check whether your street is inside the boundary before changing anything visible.
Listed buildings Yes, there are listed buildings in and around Cadnam and Bartley. If yours is one, work can need listed building consent.
Protected landscape Inside the New Forest National Park, where design is looked at more closely and permitted development rights are narrower.

Questions

Questions about patios in Cadnam and Bartley

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

Yes, a patio level with the back door is usually a problem. 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.

Nearby, and next door

Patios near Cadnam and Bartley

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.