Insulation in Cadnam and Bartley
Loft top ups, rafter insulation and wall work on the Forest edge, with the ventilation checked before the depth goes down.
The site visit is free and so is the written itemised quote. Thomas Hannen prices every job himself.
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On a bungalow or a long low house around Cadnam and Bartley, insulation starts in the loft, because the roof space is the biggest cold surface you own. Most of these lofts already have something in them. It is usually old, flattened and nowhere near the depth it should be, so the work is topping up and tidying the edges, not starting again.
Cadnam and Bartley houses show their insulation faults at the gable, on the oil bill and on the underside of the felt. A bedroom over the garage or out at the gable that never warms up whatever you do with the radiator. A heating bill that keeps climbing while the house gets no warmer, which on an oil or bottled gas system is money you feel straight away. And a loft that smells musty, with beads of water sitting on the underside of the felt on a cold morning.
We come out to Cadnam and Bartley and look at what is genuinely up there, and we never quote off the doorstep. Depth measured in three or four places, the eaves checked, the hatch checked, and a straight answer on which of those problems you actually have. The site visit is free and so is the written itemised quote. If a top up and a sealed hatch is all it needs, that is what the quote will say.
The work
Old wool is not rubbish and does not come out
Old wool is not rubbish. Mineral wool goes down in two layers, the first between the joists and the second straight across them, which is what stops every joist acting as a cold bridge through the middle of the insulation.
Between and over, to roughly 250 to 270mm, which is the 0.16 u-value a renovated roof is expected to reach. Wool that went down when these Cadnam and Bartley houses were built has usually settled to a fraction of what it was, but it does not have to come out. We lay over it and it counts towards the depth.
Plenty of the homes along these Cadnam and Bartley lanes are bungalows, and a bungalow puts its whole floor plan beneath one roof, so the ceiling is the largest single heat loss surface in the building. Most of them are boarded for storage, and boarding laid flat on the joists caps the wool at joist depth, so we lift it, raise it on loft legs, run full depth underneath and put your storage back on top. Where there is a cavity wall it gets a borescope check before anyone quotes a fill.
Where a Cadnam and Bartley roof space has been turned into a room in the roof the insulation goes between and under the rafters instead: rigid board, PIR and foil faced, cut tight into each bay with the joints taped, or a multi-layer foil quilt such as TLX where a sloping ceiling or a dormer cheek is too tight for board. An air gap stays above it unless the roof has been felted for a warm roof build-up, which is a different detail and we will say so on the visit.
Push wool hard into the eaves and you block the gap the air comes in through, and the loft turns damp instead of warm, so vent trays go in to hold the path open and Approved Document F is the standard for that side of it. Then lagging on the tank and pipework, and fire rated covers over the downlighters.
How it runs
Insulating a Forest-edge home, from survey to sign-off
Thomas comes out and looks at the whole house before suggesting anything: the loft, the walls, and any rooms built into the roof. A bungalow here usually has a big open loft with the insulation lying thin between the joists.
A late sixties or seventies detached house may have an empty cavity. A chalet bungalow has rooms in the roof, where the sloping ceilings and the short walls behind them are the cold spots. An older cottage has solid walls that need a breathable approach. He tells you which is worth doing first. The written quote then prices clearing out, the chosen material with its depth or thickness, any ventilation work, making good and removal, each separately.
Old insulation is bagged and taken away, landings are sheeted, and the house is left swept. If something shows up that nobody could see beforehand, such as damp timbers, it is photographed and priced for you before we carry on.
Insulating between and over the joists changes nothing anyone can see, so there is nothing to apply for, as the Planning Portal's insulation page explains. External wall insulation, or EWI, changes the outside face, and here that goes to the New Forest National Park Authority, with Bartley's conservation area to consider too. The Authority's property map shows what applies.
Cost
Which house you have decides the insulation cost
Before a single roll of mineral wool is opened, the house has already decided most of the price. A Cadnam bungalow with a pull-down ladder and an empty loft is quick. A hipped detached house with shallow eaves means working depth into every corner. A Bartley cottage with a boarded loft over a narrow landing means lifting boards first.
Clearing out. Old quilt to bag and remove, stored boxes to move and put back, and boards to lift are done before anything new goes in, and that time is its own line on the quote.
Rooms in the roof. A big bungalow loft is quick to cover. A chalet with bedrooms upstairs means working behind the knee walls and between the rafters, often from inside the room, which is slower and needs a vapour control layer so warm air stays off cold timber.
The walls. An empty cavity in a seventies house can be filled from outside. A solid cottage wall cannot, and lining it inside or wrapping it outside is a bigger job at a different price.
The standard, and the airflow. Approved Document L sets the level the work has to reach, and the eaves must stay open so the roof can breathe.
Ask any other installer what depth or thickness they are fitting, whether the old material comes out or gets buried, and whether the hatch, pipework and eaves vents are in the price.
If it is urgent
Condensation, returning mould or a room that will not warm up
A loft running with condensation, black mould that keeps returning on a bedroom ceiling, or one room that never warms up: ring about it. Insulating a roof space that cannot breathe makes condensation worse, so the first visit settles which problem you have.
We check the ventilation at the eaves, look for insulation pushed hard against the underlay, and check whether a bathroom fan is venting into the loft. If timbers are wet, we open up ventilation there and then so the space starts drying. Scheduled work runs Monday to Friday, 8am to 6pm. If the loft is wet, phone, and when we miss the call we ring you back as soon as we can.
The one local thing
You are in the National Park, and that changes one job only
Cadnam and Bartley sit inside the New Forest National Park, so planning here goes to the National Park Authority rather than to a district council. For insulation that matters for exactly one thing: work that changes what the building looks like from outside. Loft roll, rafter board, an internal wall lining, the hatch, the pipework and the draughts are all invisible from the road and none of them need permission.
External wall insulation is the exception, because it thickens the wall and gives it a new finish. Inside a National Park the permitted development right that would normally let you clad the outside of a house is withdrawn, so rendering over insulation is an application rather than a decision you make with your builder.
The practical consequence is the order you do things in. If external insulation is on your list, get the planning question answered before anybody prices a finish you may not be allowed to have, and use the National Park Authority's property map to check your own boundary rather than assuming, because the Park edge runs oddly around Cadnam and Bartley.
In the meantime nothing is stopping the work that pays back soonest. On the houses along these lanes that is the loft, and it is not close. Do note that being in the Park waives nothing on the Building Regulations side: turn a roof space into a room and it is building control work like anywhere else, with a thermal standard to meet.
Who you are dealing with
The firm that insulates your home
We cover the Forest edge and the villages along it, Cadnam, Bartley, Copythorne, Winsor and Netley Marsh, with the SO40 addresses around them, 17.5 miles from our Boscombe base. Planning is the National Park Authority's; building control is New Forest District Council's.
Bournemouth Roofing & Building Ltd is registered in England and Wales and has the company number 15471719. It is Thomas Hannen's firm, and he climbs into the loft and prices the work himself. A verified customer left a 10 out of 10 on Checkatrade. You do not pay for the visit or for the written, itemised quote. 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 insulation in Cadnam and Bartley
Is there a conservation area covering Cadnam and Bartley?
Yes, this part of the Forest does have a conservation area: Bartley falls within the Forest North East conservation area, while Cadnam village lies just outside it. The New Forest National Park is the planning authority throughout, and their interest is in anything visible from outside. A loft laid with quilt is not visible.
Ten listed entries fall inside the settlement, so a small number of houses need a separate check, and we do that before pricing instead of during the job.
A lot of houses here are detached. Does size change things?
It changes the quantity more than the method. Detached houses are common in Cadnam and Bartley, and a detached roof has four cold sides where a terrace has two, plus more eaves length for wind to wash through. That means more perimeter to seal and more material through the hatch. The joist spacing and the depth we can achieve are the same as anywhere.
Where does the old material go when you strip it?
Out through the hatch in bags and off site the same day. In Cadnam and Bartley we strip only where the old quilt is contaminated, matted or has been sat on, and leave the rest in place under the new layer. Bags go down a sheeted stair route. Nothing is left in the garden and nothing goes in your bin. The clearance is a line on the quote, not an extra afterwards.
Our house is late 1960s. What is likely up there?
Probably a thin layer laid when it was built and topped once since. The peak period for building in Cadnam and Bartley was the late 1960s and early 1970s, and the standard then was a fraction of what is expected now. Almost a quarter of the settlement is older than 1919 as well, and those roofs often have nothing at all over the joists. The hatch tells us within a minute which you have.
Cadnam is a fair drive from Bournemouth. Do you cover it?
We do, and it is about seventeen and a half miles each way, so we set aside the day rather than dropping in between two other jobs. That means one visit to survey and one visit to fit, both booked in advance. Thomas prices it himself after seeing the roof space. The written quote is itemised so the material, the labour and the clearance sit on separate lines.
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Insulation near Cadnam and Bartley
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Find out what your loft has actually got in it
A free site visit, the depth measured in front of you, and a written itemised quote for the work that is worth doing.