Insulation in Milborne St Andrew
Breathable insulation for cob, chalk, flint and thatch, and straightforward loft top-ups on the newer houses.
The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.
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In this village the first question is not how much insulation to lay. It is what the building is made of, because cob, chalk, flint and thatch all have to keep drying out, and the wrong material against them causes more trouble than a cold room ever did. We work that out on a free site visit in Milborne St Andrew, and the written quote names the material as well as the depth.
Poor insulation in Milborne St Andrew turns up in old cottages, under thatch and in untouched post-war lofts. An old cottage that swallows oil and still has a cold end. A ceiling under thatch that somebody has been told to spray foam, wanting a second opinion first. And a post-war house or bungalow on the newer part of the village where the loft has never been touched since it was built.
Each is a separate job, and only the post-war loft is simple. So the survey is a proper look: what the walls are built of and whether there is any cavity in them at all, what is over your head and whether there is a void behind the ceiling, how deep the existing layer really measures, whether the eaves are open, and where the tank and pipe runs sit.
The itemised written quote follows from that with the method on it as well as the figure, and nothing is ordered until you have said yes to it.
The work
Nothing goes against the underside of a thatch
Ceilings under thatch. There are still thatched roofs in this village and they are the job people get wrong most often. Thatch works by holding still air and stays sound because moisture leaves it from both sides.
So the insulation goes at ceiling level, in a breathable mineral or sheep's wool quilt, and it stays clear of the thatch itself. We will not spray the underside of a thatch with foam and we would talk you out of anyone who offers to, because it seals the coat and holds damp against the timbers. Downlighters cut into a ceiling under thatch are a fire question first, and the answer is usually to take them out, not cover them.
Cob, chalk block and brick and flint walls have no cavity wall to fill, no damp proof course and no interest in being sealed. They survive by taking up moisture and giving it back, which is why cement render and plastic backed board do them harm. Where a room genuinely needs it, internal wall insulation is built vapour open, a wood fibre or breathable mineral board with a lime plaster finish, with thought given to the joist ends buried in the wall and the window reveals, because those are the cold bridges that grow mould after the work, not before it. External wall insulation changes the outside face of the building, which on a cottage like that is a planning conversation first.
The post-war part of Milborne St Andrew has ordinary trussed or purlin roofs with nothing more than the original thin layer, settled and stopped short at the wall plate. Those get mineral wool between the joists and an eco roll straight across the top at right angles. A renovated ceiling is expected to reach a U-value of 0.16, which in mineral wool is nearer 270mm than the 250 that used to be the number. Vent trays at the eaves where the roof is felted, a draughtproofed hatch, and a raised deck on legs where storage matters. Where a roof space has become a room in roof it is rigid board between the rafters, PIR with a clear air gap above and a multi-layer quilt such as TLX where a sloping ceiling has no depth to give.
How it runs
Insulating an older house: survey, fit and ventilate
Thomas comes out and finds where your heat is going: through the loft, the walls, or rooms built into the roof. He checks whether the walls are solid or have a cavity, how the roof space breathes and what is already laid up there. His quote lists what goes in and how thick, any ventilation work, clearing out old material, and taking it away.
Loft work is done from the hatch with boards laid across the joists, and wall lining is done room by room, so you know in advance which rooms will be out of use and for how long. Dust sheets go down, old insulation is bagged and leaves with us, and rooms are left tidy each evening. Damp timbers, or wiring that should not be buried under quilt, are photographed and priced before anything more is done.
Laying quilt in a loft or lining a wall inside is permitted development, and Planning Portal guidance on insulation says where that stops. Building control comes in when a thermal element is renovated or the roof space becomes a room. Insulating the outside of a wall inside the Milborne St Andrew Conservation Area counts as cladding and needs planning permission. The parish church of St Andrew is one of a good number of listed entries, and listed building consent reaches inside a listed building as well as outside it. Dorset Council is the authority. Energy saving insulation fitted in a home currently carries no VAT, as HMRC Notice 708/6 explains.
Cost
What the house itself does to an insulation price
Insulation is not priced per square metre, and the area is the simple part. What surrounds it is where the time goes. Getting in. A cottage where the only way up is a small square cut through lath and plaster over the stairs takes far longer than a post-war bungalow with a clear run across the joists. Rooms in the roof, with sloping ceilings, are slower again.
What comes out. Old, thin or damp material has to be bagged and taken away, and boarding lifted and relaid, before anything new goes down.
Solid or cavity. A solid wall cannot be filled. It has to be lined inside or clad outside, and on an old wall the lining should be a breathable material, such as wood fibre, so moisture can still leave. A cavity wall can often be filled from outside in a day.
The standard. Approved Document L sets the U-value the work has to reach, and that decides the thickness and the material.
Ventilation. Eaves vents, a vapour control layer or extra airflow add to the cost but stop condensation forming where the new insulation meets the cold.
Ask any other firm how thick the new layer will be, whether the old stuff is being removed, and whether the eaves and hatch are covered in their price.
If it is urgent
A room that stays cold, condensation or returning mould
A loft dripping with condensation, black mould that returns after cleaning, or a room that will not hold heat is worth sorting before the winter sets in. Open windows for a while each day and keep furniture off cold outside walls in the meantime.
Use the phone for this one. Insulation is booked Monday to Friday, 8am to 6pm, and if you ring and nobody picks up, a call back follows as soon as we can. What the first visit settles is whether the cause is missing insulation, poor ventilation or both, because adding insulation to a space that cannot breathe makes it worse.
Worth knowing
Tighten this house up and you have to give the air somewhere to go
Milborne St Andrew sits on ground that the radon maps flag, at the band where a few homes in every hundred come out above the action level. That is a building control matter for a new extension or a conversion, where basic protective measures are designed in. It matters to insulation for a different and less obvious reason.
Radon is dealt with by dilution, and dilution means air changes. Every draught you seal, every gap you close and every airbrick that gets covered over reduces the rate at which the air in the house is replaced. Insulation on its own does not create the problem, but the draughtproofing that usually comes with it can concentrate what is already there.
So the advice is simple and it costs nothing. Keep the sub-floor void ventilated and never build over an airbrick. Where we seal a ceiling, a hatch or a set of downlighters, the replacement ventilation goes in as part of the same job, never left to chance: working trickle vents, an extractor in the kitchen and bathroom that discharges outside rather than into the roof, and a roof space that can still breathe at the eaves. Approved Document F sets out what a dwelling needs.
And if you are going to tighten an older house up here, a radon test is cheap, takes a few months of sitting quietly in a corner, and turns a maybe into a fact. Do it before the work, not after, so any result can change the specification instead of the bill.
Who you are dealing with
Who assesses and fits your insulation
We cover Milborne St Andrew and Milborne Stileham on DT11, out through Bere Regis, Puddletown, Winterborne Kingston, Blandford Forum and Dorchester, working from Boscombe, some 20 miles away. Dorset Council is the planning and building control authority for your address.
The company, registered in England and Wales, is Bournemouth Roofing & Building Ltd, number 15471719. Every survey and every price is done by Thomas Hannen, who owns it. A verified customer has given us 10 out of 10 on Checkatrade. You are not charged for the visit, or for the quote with its lines set out. Before you book a visit in Milborne St Andrew, you can read our customers' Google reviews, word for word, on our reviews page.
Planning at a glance
Do you need planning permission in Milborne St Andrew?
Most repairs in Milborne St Andrew 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 Milborne St Andrew |
|---|---|
| Who decides | Dorset Council is the planning authority for Milborne St Andrew. Dorset Council's heritage pages set out what it controls. |
| Conservation area | Yes: Milborne St Andrew Conservation Area. Check whether your street is inside the boundary before changing anything visible. |
| Listed buildings | Yes, there are listed buildings in and around Milborne St Andrew. If yours is one, work can need listed building consent. |
| Protected landscape | No National Park or National Landscape covers Milborne St Andrew. |
Questions
Questions about insulation in Milborne St Andrew
The village has a lot of listed cottages. What does that mean?
A lot of listed cottages means the answer turns on the individual address. Milborne St Andrew carries nearly thirty listed entries, including the Parish Church Of Saint Andrew, which is a great many for a village this size, and consent depends on whether your own house is on the list rather than on the street it stands in.
The heart of the village is also a conservation area, the Milborne St Andrew Conservation Area, which matters for work on the outside, such as external wall insulation, not for a loft. On a listed cottage, Dorset Council look at what the work does to historic fabric, so we set that out first.
Would a loft conversion here run into the nutrient rules?
Normally not. The village is in the Poole Harbour nutrient catchment, but nutrient neutrality only bites where a scheme adds a new dwelling or separate overnight accommodation, such as an annexe or a holiday let, so neither plain loft insulation nor a bedroom in the roof of your own house normally has to answer it. Milborne St Andrew is twenty miles out from us, so if a conversion is the plan it pays to get the planning side moving well before any fabric work is booked.
The cottage is cold everywhere. What order do you work in?
Roof first, then draughts, then walls. The loft or the roof slope is the cheapest part to reach, so it gives the biggest change for the least disturbance to the house. Sealing round doors, floors and chimney breasts comes next, because a sealed room feels warmer at the same temperature on the thermostat. Solid walls come last, since they are the most disruptive and, in an older Milborne St Andrew house, the most likely to need a breathable build up.
Do we have to be in the house while you work?
Somebody needs to let us in, and that is about the size of it. Loft work happens through the hatch, so the landing gets sheeted and the rest of the house carries on as normal, with nobody moving out or losing a day. Milborne St Andrew is a long run out for us, so we book it as a full day instead of dropping in twice. Point out any tank or old wiring before we start.
Is radon a reason to seal the house up tighter?
No, and sealing without thinking it through can make matters worse. Milborne St Andrew sits in an area where an estimated 3 to 5 per cent of homes are affected, which means basic protection is designed into new floors and conversions rather than retrofitted because somebody added loft wool. Insulation over a ceiling does nothing about gas coming through the floor. If you are converting or extending, the floor detail is where it gets handled.
Nearby, and next door
Insulation near Milborne St Andrew
Nearby places we also cover for insulation, with straight-line distances from Milborne St Andrew, and the other trades we offer in Milborne St Andrew itself.
Insulation nearby
Our other trades in Milborne St Andrew
Insulation guides
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Get the material right before the depth
A free site visit that starts with what your walls and roof are actually made of, and an itemised written quote naming the material as well as the depth.