Insulation in Owermoigne
Loft depth, a proper air path at the eaves, rafter level board in conversions and breathable work on old walls, priced in writing.
The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.
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The insulation job in a village like Owermoigne is rarely just laying wool. It is getting depth into a roof space that was never built with a ventilated eaves detail, without turning the loft into a cold damp box. So we look at the airflow and the ceiling together, and quote them together.
Why would an Owermoigne house need its insulation looked at? A cottage that eats oil or logs through the winter and still has a cold bedroom at the end of it. A converted barn, annexe or room over a garage that was finished quickly and never insulated properly at the rafters. And a roof space where somebody has already added wool, pushed it hard into the eaves, and produced condensation on the underside of the felt and dark spotting on the ceiling below.
We come out, get into the roof, and tell you which of those you have before anyone talks about materials or depth. The site visit is free and so is the written itemised quote. If the honest answer is that your money is better spent on ventilation than on another hundred millimetres of wool, that is what the quote will say.
The work
No soffit, no eaves gap, nowhere for the air to go
No soffit, no eaves gap. Older village roofs were cut on site, so you get purlins, heavy rafters, an uneven ceiling below and often no ventilated eaves at all, because the rafters land more or less on top of the wall.
The wool still goes down the same way, straightened out, gaps closed, then a fresh eco roll across the joists at right angles, between and over, to roughly 270mm finished, which is what brings a ceiling to a U-value of 0.16 rather than the 250mm people remember. What changes is the edge. Where there is no eaves gap to protect we either open one up with vent trays and over-fascia vents, or bring air in through tile vents higher up the slope, rather than lay depth into a roof that has nowhere for moisture to go.
Conversions around Owermoigne, barns, annexes and rooms over garages, are usually warm at one end and cold at the other. In a room in roof it is rigid PIR board cut tight between the rafters with a ventilation gap held above it and a second layer under the sloping ceiling, taped so the vapour control layer is continuous, or a multi-layer foil quilt such as TLX where there is head height to lose. A room over a garage needs the floor doing as well, because an unheated garage under a bedroom is as cold as a roof above it.
A rubble stone or old brick wall has no cavity and was built to absorb water and give it back, so it wants a breathable answer or none at all. Internal wall insulation on the coldest room is the usual route, detailed properly at joist ends and window reveals. Newer houses on the edges of Owermoigne have a cavity wall, and there the survey starts with a borescope. Where a cottage floor is coming up anyway is the one moment when insulating it is straightforward; at any other time it means taking up a floor for the sake of it. The practical end matters too: an insulated hatch, fire rated covers over any downlighter, lagging on the pipe runs above the new layer, and a raised deck where storage goes back.
How it runs
Insulating an Owermoigne home, and where to start
Thomas comes out and goes through the house with you: loft first, then walls and floors, and he tells you which will make the most difference. The quote itemises the survey, removal of old material, what goes into each area and at what depth or thickness, any ventilation work, making good, and waste removal. Thomas prices every part of it himself.
On an older house with solid walls, insulation has to let the wall breathe, so breathable materials are used and air is kept moving. On a newer house, cavity fill and loft insulation are usually the first steps. Dust sheets go down, the area round the hatch is protected, and old material is bagged and taken away. Wet timber or blocked ventilation found up there is photographed and priced for you.
Insulation inside a loft, at rafter level or on the inside of a wall needs no planning permission because it is not development, and the Planning Portal insulation page explains why. Part of Owermoigne, its historic core, is a conservation area. Inside that boundary, external wall insulation or cladding changes how the house looks and needs planning permission first; outside it, on an unlisted house, it is normally permitted development. On a listed building, listed building consent covers internal linings too. Once more than half of an element is renovated, regulation 23 brings the whole of it up to the current standard. Dorset Council handles both planning and building control.
Cost
Old walls, open roofs and what insulation costs
You will not get a fair square metre rate for this. The area is simple, and the edges and the old fabric are where the work is.
The building. A stone cottage with the hatch in a bedroom ceiling and nothing boarded to kneel on is one morning. A converted barn open to the ridge has no loft at all, so the insulation goes between or under the rafters. A newer house with a clear loft is the quickest of the three.
What is up there already. Old material to bag and take away, and boarding to lift and put back, come before anything new goes down.
The material. Mineral wool, sheep's wool, wood fibre and rigid boards are all priced differently. On solid old walls, a breathable material such as wood fibre is often the right answer, and it costs more than a foam board.
The standard. The U-value to aim for comes from Approved Document L, and ventilation has to be kept, including at the eaves.
Ask anyone else what depth or thickness they are fitting, whether the old material comes out, whether the eaves and hatch are included, and how the wall will breathe afterwards.
If it is urgent
Condensation overhead, or a room you cannot heat
Condensation running in the loft, mould that returns however often it is wiped, or a room that stays cold with the heating on are worth looking at before winter. On the first visit Thomas works out whether it is a lack of insulation, poor ventilation or both, since insulation packed into a space with no airflow only traps more damp.
On an old solid wall, a cement render or a plastic paint holding water in can be behind it too. Owermoigne is a run out west for us, so we book a morning for it, not an hour. Scheduled work runs Monday to Friday, 8am to 6pm. Ring us. Scheduled work runs Mon to Fri, 8am to 6pm, and if we miss you we call back.
Worth knowing
This is radon ground, so sealing the house up needs a bit of thought
Owermoigne sits in a radon affected area, in the lower band, where a small share of homes are expected to be above the action level and building control expects basic radon protection in new work such as an extension or a conversion. Radon comes up out of the ground, so it has nothing to do with your loft, but it has a lot to do with how airtight the rest of the house becomes.
Draught-proofing and insulating reduce the amount of air changing in a building, and if that air is coming up through a suspended floor, less air change means a higher concentration indoors. That is not a reason to leave the house cold. It is a reason to be deliberate about where the air comes from.
In practice it changes how we treat the ventilation. Airbricks and underfloor vents stay clear, and nothing we lay goes anywhere near blocking them, whatever it does for the draught in the hall. If a ground floor is being insulated we keep the void below it ventilated, never sealed up. Where the house is tight and the extract in the kitchen and bathroom is old or missing, we will point at that before we point at more insulation, because Approved Document F treats ventilation and fabric as one system, not two.
And if you are converting or extending, radon protection is a building control item that belongs in the build-up under the new floor, which is far cheaper to design in than to retrofit. A test kit from the health authority is inexpensive and settles the question for your address rather than for the map square.
Who you are dealing with
Your insulation installer for DT2
We insulate homes in Owermoigne and in Warmwell, Crossways, Wool and Winfrith Newburgh, working from Boscombe, 22 miles away. Planning and building control sit with Dorset Council. The firm is Thomas Hannen's own, and he comes out, looks in the loft and at the walls, and prices the work himself.
Our company is Bournemouth Roofing & Building Ltd, number 15471719, registered in England and Wales. Checkatrade lists a verified customer's 10 out of 10 for us. You are not charged for the visit, and the written quote, which lists every item, is free. Before you book a visit in Owermoigne, you can read our customers' Google reviews, word for word, on our reviews page.
Planning at a glance
Do you need planning permission in Owermoigne?
Most repairs in Owermoigne 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 Owermoigne |
|---|---|
| Who decides | Dorset Council is the planning authority for Owermoigne. Dorset Council's heritage pages set out what it controls. |
| Conservation area | Yes: Owermoigne Conservation Area. Check whether your street is inside the boundary before changing anything visible. |
| Listed buildings | Yes, there are listed buildings in and around Owermoigne. If yours is one, work can need listed building consent. |
| Protected landscape | No National Park or National Landscape covers Owermoigne. |
Questions
Questions about insulation in Owermoigne
What is actually on the written quote you leave?
Line by line, what goes where and what comes out. For a loft at Owermoigne that means the area covered, the depth being added, whether the existing material stays or is bagged and taken away, the eaves trays, the hatch and the tank jacket, each on its own line so you can drop one if you want to. Thomas writes it after the visit, never at the door, and both the visit and the quote are free.
Twenty-two miles out from Bournemouth. Will you actually come?
Yes, Owermoigne is inside our area and we work along that side of Dorset. Distance changes how the work gets booked, not whether we turn up, so a survey out here is grouped with other jobs in the same direction and we give you a day instead of a vague window. Thomas drives out and looks himself, so there is nobody standing between you and the man pricing the job.
Moignes Court is listed. Does that affect what we do?
Listing attaches to the named building and to the older structures in its curtilage. Owermoigne has 13 listed entries, Moignes Court and the Parish Church Of St Michael among them. The village also has a conservation area over its historic core, but that controls how buildings there look from outside, not work inside them, so an ordinary unlisted house here is unrestricted for internal work. On a listed building the test is what the work does to old fabric, and a reversible layer over a ceiling is a far easier conversation than a lined wall.
Which side of the house do you look at first?
The south west face, because that is the exposed elevation at Owermoigne and it takes the driven rain. Wind driven water works at edges and openings, so it finds a way in at a verge, a window head or a gable rather than through the middle of a wall, and it wets whatever sits behind. A patch of wall that never dries out will read cold indoors permanently. We check that face first and price it on its own.
The ground drains well here. Is a solid floor worth insulating?
It can be, though it is the most disruptive item on the list. Owermoigne sits on freely draining ground, so an old solid floor is less likely to be wet, but doing one properly means taking it up, laying insulation, and putting a new slab or a floating deck over the top. That is a room out of use for a while. It is best done when the floor is coming up anyway, and left until then.
Nearby, and next door
Insulation near Owermoigne
Nearby places we also cover for insulation, with straight-line distances from Owermoigne, and the other trades we offer in Owermoigne itself.
Insulation nearby
Our other trades in Owermoigne
Insulation guides
Part L: do you have to insulate when you re-roof? Black mould on walls: what causes it and what stops it PIR board vs mineral wool: which insulation?Everything we do in Wareham Insulation, all areas Every area we cover
Free quote
Not sure whether the loft or the ventilation is the problem?
We will get into the roof, measure what is there, check how the eaves are breathing, and put the options in writing. The visit and the quote are both free.