Rendering in Cadnam and Bartley, warmer walls
About four in ten homes here were built between 1945 and 1982, which is the stock where render and insulation are worth pricing as one job rather than two.
The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.
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Rendering in Cadnam and Bartley covers a mixed stock, about a quarter pre-1919 and four in ten post-war, and on the post-war walls cracked or blown render usually means a re-render and a patch only buys time. A re-render is also the cheapest moment to make the wall warmer: the scaffold, the strip and the making good are already paid for, so insulation board under a silicone thin coat is the only extra. For inside walls, see plastering in Cadnam and Bartley.
Houses in Cadnam and Bartley tend to show a rendered elevation cracked and hollow after fifty odd winters, or a cold wall on the weather side that makes the house expensive to heat, with nowhere obvious to insulate inside.
They are often the same house. On the free site visit in Cadnam and Bartley we tap the elevation, work out what the wall is and how much of the coat has gone, then price the plain re-render and the insulated version side by side. Both go in writing, itemised, with the hack off, the scaffold and the waste on their own lines.
The work
Re-rendering seventies walls, with or without insulation
What has usually failed. A Cadnam and Bartley render of that age is normally sand and cement, sometimes finished in Tyrolean or pebbledash. The cracking starts at window heads and under sills, then the coat parts from the block behind and the whole panel sounds hollow. We tap the elevation on the survey, because a dashed wall gives nothing away by eye.
Hacking off and preparing. The blown areas of a Cadnam and Bartley wall come off to a firm background. We clean down, prepare and stabilise anything dusty with a primer, cut a key where the block face is too smooth, and cut out any spalled arris before a basecoat goes near it. Where more than a third of a face is hollow, the whole elevation comes off.
A plain re-render. On a sound cavity wall, a silicone thin coat: primer, a mesh and scrim reinforced basecoat, then a through-coloured topcoat scraped or floated to a texture off a sample board. Monocouche does it in one applied coat and suits a long plain elevation. Older acrylic and polymer rich finishes craze, which is what a lot of the crazing around Cadnam and Bartley is.
Render over external wall insulation. EWI is board fixed and dowelled to the wall, a render carrier and mesh over it, then the same topcoat. It is the version worth pricing on this stock, because a cavity that was built before insulation was taken seriously is the wall that loses the heat. Approved Document L, Part L, sets what a renewed external wall is expected to reach thermally, and it is why a building control notice can be part of the job rather than an afterthought.
The detailing that decides whether EWI works. Insulation thickens a Cadnam and Bartley wall, so everything at the edges moves with it: reveals lined and beaded, sills extended so the drip clears the new face, eaves and verges checked for overhang, soil pipes, gutters, meter boxes and outside taps refixed forward. This is where a cheap insulated render quote saves its money and where it fails two winters later.
Beads, cracks and staining. A bellcast bead at the base throws water clear of the plinth, stop beads finish the render at reveals and verges, and stainless goes anywhere the wall gets wet. A crack that takes a coin will delaminate the coat around it. Green algae and staining on the shaded side is a cleaning job unless the wall behind is wet. On a period solid walled cottage built pre-1919, which is about a quarter of the homes here, none of this applies: those walls are breathable, a plastic rich coat leaves moisture trapped in them, and lime is the answer instead.
How it runs
Re-rendering a house on the edge of the Forest
Thomas taps the existing render across each elevation to find the hollow areas and looks at what it sits on. Plenty of the post-war houses in the two villages have render or pebbledash on part of the front, on a gable, or over the whole of a bungalow.
An older cottage in Cadnam and Bartley may be solid brick that wants a lime render so it can breathe. The written quote separates scaffold and access, sheeting and protection, getting the wall ready, which system and how many coats, beads, bellcast and stop ends, and making good afterwards.
Thomas is your one contact throughout a Cadnam and Bartley job. Windows, doors, paths and planting are sheeted before anything is hacked off, and the scaffold usually stands on your own drive, clear of the lane. Each day ends with the ground swept and the debris bagged, and no wall is left half-coated in the weather overnight. If a hollow area turns out bigger once the old coat is off, you get a photograph and a price first.
Renewing existing render on a Cadnam and Bartley house like for like is maintenance, but as the Planning Portal sets out for external walls, the right to render or clad is removed across the National Park, so rendering a wall that is not rendered now needs planning permission from the Park Authority. That is as true in Cadnam village as in Bartley, which the Forest North East conservation area also covers; the Park's map of each property confirms yours. Insulated render changes the thermal performance of the wall and can bring in building control, and we say so on the quote.
Cost
What is on the wall now decides the rendering price
Render out in Cadnam and Bartley is not priced by the square metre. A tape measure gives you the area in a minute; what is already on the wall decides the job.
What has to come off. Coating sound brick or block is quick. Hacking off sand and cement that has blown, or pebbledash that has let go of the wall behind, is slow, and none of it shows from the drive. Thomas taps every elevation before writing a figure, because the hollow patches set the hours.
Cracks from the clay. On this shrink-swell ground, a crack running through the render and into the brick is about movement, and it may need mesh or a movement bead before a new coat goes on.
Choosing a system. A silicone thin coat over insulation, a through-coloured monocouche, and plain sand and cement differ in price and in how they behave. On a solid Bartley cottage wall lime is right, since a plastic-rich finish traps moisture and drives damp indoors.
The scaffold. A detached bungalow is done from a tower on firm ground. A house with a garage alongside needs a bridged lift, and a wall behind a conservatory needs scaffold designed round the glass. It stays up for the whole system, not a day, under the work at height rules.
Put these to any other quote: which system and how many coats, is the old render coming off, and are beads, bellcast, stop ends, sills and pipework in?
If it has started to come away
Render that sounds hollow or has cracked open
Start by tapping the render on your Cadnam and Bartley house. If a patch sounds hollow, or a crack will take a coin, rain is getting behind it and the first hard frost will push more off. If a lump has already dropped, keep people away from that wall.
Phone; the form is too slow for this. On the first visit we knock off whatever is loose so it cannot fall, sheet it if the weather is turning, and price the repair once we can see how far the blown area runs. Deal with it in autumn, before the frosts. Scheduled work runs Monday to Friday, 8am to 6pm. For render falling off, phone, and should nobody answer, we ring back the moment we can.
Worth knowing
Why insulation belongs in the same quote as the render
The housing here is mixed, with a lot of detached houses and bungalows, and about four in ten homes are post-war. Those have a particular kind of wall: a cavity built when the cavity was there to stop rain rather than hold insulation, often with nothing in it or with the first generation of thin batts. It is why so many houses on these lanes feel cold on one side.
In Cadnam and Bartley the practical point is timing. Insulating that wall from outside is worth doing on its own account, but it costs a scaffold, a strip of the old finish, new sills and reveals and a full render on top. If the render is failing anyway you are already paying for all of those, and adding the board and the carrier is a smaller step than doing it from scratch in five years. So when the render goes, get both prices. Sometimes the answer is still the plain re-render, because the wall has a decent fill already or the elevations that matter are sheltered. It is a decision worth making with two numbers in front of you rather than one.
Who you are dealing with
The renderer who prices your house
Cadnam, Bartley, Copythorne, Netley Marsh and the villages on the northern edge of the Forest are 17.5 miles from our base in Boscombe. Planning there is for the Park Authority, while insulated render is a building control matter for New Forest District Council.
You would be dealing with Bournemouth Roofing & Building Ltd, registered in England and Wales as company 15471719. Thomas Hannen owns the firm; the tapping and the pricing on your Cadnam or Bartley wall are done by him. A verified customer on Checkatrade gave us 10 out of 10. Pricing it costs you nothing: the visit and the written, itemised quote are both free. Before you book a visit in Cadnam and Bartley, you can read our customers' Google reviews, word for word, on our reviews page.
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.
| 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 rendering in Cadnam and Bartley
Is insulated render worth it on a seventies house?
Often, and the test is whether the render is failing anyway. If it is, the scaffold and the strip are already in the price and the insulation is the only extra. If the render is sound the payback is much longer, and we will say so instead of talking you into it.
Will insulated render change how the house looks?
Yes, a little. The walls become thicker, so the windows sit deeper in their reveals and the sills project further. Most people like the effect. It is worth looking at a finished elevation before you commit, and worth checking that the eaves overhang is enough for the new wall thickness.
Do we need building control for it?
Usually yes, because it changes the thermal element of the wall. It is a straightforward notice, not an obstacle, and we flag it on the quote. A plain like for like re-render does not normally engage it at all.
What happens to the gutters, pipes and the outside tap?
They come off and go back on the new face, as a priced line, not a surprise. Downpipes need longer offsets, meter boxes are reset, and the supplier is involved where a box has to move. Skipping that step is how a cheap job ends up with a downpipe discharging behind the render.
What sort of programme should we plan for?
People always ask how long it takes. A plain re-render on a straightforward two storey face is a week to ten days once the scaffold is up, plus drying between coats. An insulated system adds several days for the boarding and the reveal work, and cold or wet weather stops the coats going on rather than slowing them.
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Get both prices, the re-render and the insulated version
Thomas comes out, taps the wall, tells you what has blown and prices the plain re-render and the insulated system side by side. The visit and the written quote are free.