Insulation in Sandford
Loft top-ups taken out to the eaves, storage decks on legs and honest cavity checks, priced from a proper survey.
The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.
Most of Sandford went up in the same twenty years, which means most of the lofts here have the same story: a thin layer put down when the house was built, possibly one top-up since, and a trussed roof that makes the corners awkward to reach. What matters is the depth at the edges and whether anything is squashed, not the number on a bag. We measure it, then price it in writing.
The three calls we get from here are almost always the same. A bedroom over the garage that never warms up. A loft that has had boards down for years with something flattened underneath them. And somebody who has been told by a neighbour what their loft cost and wants to know why the price for theirs came out differently.
So the visit is a proper survey rather than a glance through the hatch. We probe the existing layer at the edges as well as the middle, look at whether it goes over the joists or only between them, check whether the eaves are open, find the tank and the pipe runs, and see what has been done to the walls already. You get the findings, then an itemised written quote with the depth and the method on it.
The work
We will not notch a truss to make our life easier
Trussed rafter lofts. Six in ten homes here went up between 1945 and 1982, and houses of that age are nearly all built on trussed rafters, with the webs criss-crossing the space. That is why the corners of these lofts so often get missed. Getting a roll worked down past the webs and out over the wall plate takes longer than covering the middle, and the middle is not where you lose the heat. We carry the depth right out to the eaves with a vent tray keeping the airway open above it. What we will not do is cut or notch a truss to make our own life easier, because those timbers are a structure and not just a frame.
The original layer here was thin by any modern standard, and forty odd years of settling has thinned it further and parted it along the joist lines. We lay mineral wool between the joists, then an eco roll straight over the top at right angles so no joist is left as a cold bridge. The finished ceiling is what is being aimed at, not the material: a renovated thermal element is expected to reach a U-value of 0.16, and in ordinary quilt that is nearer 270mm than the 250 people remember.
Giving the storage back safely. Half the lofts we go into on these roads have chipboard down over a compressed layer that has stopped being insulation and started being packing. The answer is a raised deck on legs so the full depth sits underneath undisturbed, and on a trussed roof the legs are set so the load lands where the truss is designed to take it. A bedroom built over an unheated garage has cold air moving under the floor all winter, and no amount of loft work fixes it. That one is insulated between the floor joists from the garage ceiling below.
These houses have a cavity wall and it is a narrow one by modern standards. A borescope tells us in minutes whether it is clear, whether it was filled years ago with blown fibre that has since slumped and left a cold band across the top of the elevation. Where it is not right, we would rather say so than book it. Where a fill is not the answer an internal wall lining is the alternative, and external wall insulation changes the face of the house, so it is a decision about the look as much as the physics. A trussed roof cannot simply be converted either, and anybody who tells you otherwise is planning to cut something they should not. Where a conversion has already been done, a room in roof is insulated at rafter level with rigid PIR board such as Celotex between the rafters and an air gap above, a multi-layer quilt such as TLX under a sloping ceiling that has no depth to give, and the dormer cheeks done at the same time.
How it runs
From your call to a written price
Insulating a loft or lining a wall on the inside is an improvement rather than development, so it sits inside permitted development, with the Planning Portal setting out where that stops. Building control is engaged once a thermal element is renovated or the roof is converted into a room, and regulation 23 sets the standard the finished element has to reach. Dorset Council is the planning and building control authority here. There is no conservation area over Sandford and only four listed entries near it, but if yours is one, listed building consent can reach inside as well as out and we check first. Insulation fitted in an existing home is zero rated for VAT under HMRC VAT Notice 708/6.
Cost
What decides the price of an insulation job
No rate per square metre. A semi with the hatch on a small landing and a truss directly over it, a bungalow where the whole ceiling is the roof and the eaves pinch down to nothing, and a house with a boarded loft that has to come up first are three different jobs before a roll is opened. Old material that has to be bagged and taken away is a cost before anything new goes down. Approved Document L sets what the finished work has to reach. Ask any quote whether the eaves are being kept clear and whether the hatch and pipework are in.
If it is urgent
Damp, condensation or a room you cannot heat
Ring rather than use the form. A loft dripping with condensation, mould that keeps coming back, or a room that will not hold heat gets looked at quickly. The first visit tells you whether it is insulation, ventilation or both. Sandford is minutes from Wareham and on our way most days, so a look is usually the same week. The phone is answered 24 hours for emergencies; scheduled work runs Monday to Friday, 8am to 6pm.
Worth knowing
The whole village came due at the same time
Six houses in ten here were built between the late forties and the early eighties, and the biggest single group went up in the late sixties and early seventies. Roofs, cavities and lofts that were all built within a few years of each other reach the same point in their life within a few years of each other too, which is why the same three jobs come up street by street.
It also explains a lot of the funded top-ups that went through this sort of housing in the two thousands. Those rounds put a layer over what was already there and moved on. They rarely reached the eaves, they rarely lifted boarded areas, and the depth they were working to is not the depth expected now.
The practical use of that is simple. If your neighbour has had a price and yours has come out different, the reason is usually one of three things: whether old material has to come out and be taken away, whether a boarded area has to be lifted and re-decked, and whether the cavity has already been filled.
Ask any quote you get to say which of those it includes. It also means that when the lofts on a road are all much the same, we can look at two or three houses in a morning and price them properly rather than guessing, and neighbours who arrange it together get a straighter answer from us than they would from a doorstep caller working the same estate.
Who you are dealing with
A local firm you can check
We cover Sandford, Holton Heath, Wareham and Stoborough on BH20, out through Lytchett Matravers and across to Poole, and Dorset Council is the planning and building control authority for this address. 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
Sandford questions we get asked
Why does every house on our road need the same job?
Because they were built together. Sandford is 60.7% post war stock with the peak in the late 1960s and early 1970s at 24.0%, so the lofts were filled to the same thin standard within a few seasons of each other and have settled by the same amount since. When one neighbour finds a flattened layer barely covering the joists, the rest of the close usually has it too.
Our bungalow is cold all over. Is the roof the big one?
On a bungalow it is, because the ceiling area equals the whole floor area rather than half of it. Sandford has 22.7% bungalows, and in that shape of house the roof is the single largest cold surface you own. Every room sits directly under it, so getting a proper depth across the entire ceiling changes how the place feels rather than just the landing and the back bedroom.
Do we need consent for insulation in Sandford?
Almost never. There is no conservation area here and only four listed entries in the whole settlement, so the odds of your house being one of them are slim. Dorset Council does not want a planning application for quilt on a ceiling. The building regulations do apply if you turn the roof space into a room, or if a floor is insulated as part of a wider alteration.
The ground here stays wet. Does that affect the floors?
It does. The subsoil around Wareham St Martin drains poorly, so the void under a suspended timber floor holds damp air through most of the winter. Anything fitted under those boards has to sit clear of the ground and the air bricks have to stay open, or you trade a cold floor for rotten joist ends. On a solid concrete floor none of that applies at all.
How long are you in the house for a loft?
Most Sandford lofts are finished inside a day and plenty of them in a morning. The van sits outside, material goes up through the hatch, and the only room we are working in is the one under the opening. Boarded storage decks add to it because the boards come up and go back down. If the eaves need vent trays, allow another couple of hours on top.
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Find out what is really in your loft
A free site visit, a probe into the existing layer at the edges as well as the middle, and an itemised written quote with the method on it.