Loft Insulation Irvine
Two questions come up more than any others here, and neither is really about price. Is what I already have up there enough, and will adding more cause damp? Both have straight answers, and you can get most of the way to them yourself.
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How to tell whether your loft insulation is enough
You do not need anyone to answer this for you, and it takes about five minutes. The recommended figure in Scotland is 270mm of mineral wool at ceiling level. Ceiling joists in most Irvine houses are around 100mm deep, which gives you a built-in ruler.
- Open the hatch and look across the loft space rather than straight down. Can you see the tops of the joists?
- Joists clearly visible: you are at or below 100mm. There is a worthwhile improvement available.
- Insulation level with the joist tops: roughly 100mm. Still well short.
- Insulation well above the joists, so the timbers are buried: probably 250mm or more, and you may not need us at all.
- Push a tape measure or a stick down through the wool at a few points rather than judging by eye. It settles unevenly, and the depth at the hatch is usually the best it gets.
Two other things worth noticing while your head is up there. Whether the wool is laid tight against the eaves at the edges, and whether it looks flattened where somebody has been walking to reach stored boxes. Both matter more than the brand of insulation product anyone tries to sell you.
Your energy performance certificate will also state an assumed depth, though it is worth treating that as a starting point rather than a fact. EPC assessors do not always measure, and an insulated loft recorded as 270mm is sometimes nothing of the sort.
Will adding insulation cause damp in the roof space?
It can, if the airflow is ignored. This is the single most common worry people raise and it deserves a proper answer rather than reassurance.
Insulating the ceiling keeps heat in the rooms below, which means the roof space above gets colder than it used to be. Warm moist air from the house still finds its way up there, from bathrooms, kitchens, drying laundry and simple occupation. Colder surfaces plus the same moisture equals condensation on the underside of the roof, and over time that means damp timbers, black mould on stored belongings and a homeowner who reasonably concludes that the insulation caused the problem.
What actually causes it is the moisture having no way out. A cold roof is designed to breathe through gaps at the eaves, and the fix is to protect that airflow rather than to use less insulation.
- Keep a clear ventilation path at the eaves. Wool stuffed hard into the edges blocks the airflow the roof depends on.
- Fit eaves trays where the gap is tight, so the insulation can run to full depth without sealing the opening.
- Deal with the moisture at source. An extractor fan venting into the loft rather than outside will defeat any amount of good insulation work.
- Insulate and draught-seal the hatch itself. An open hatch is a direct route for warm wet air.
Done that way, insulating reduces the risk of condensation in the rooms below rather than adding to it. Done carelessly, it creates a problem that did not exist before. It is the whole reason we look at the eaves before quoting on depth.
When is the cheapest time of year to insulate a loft?
Spring and summer, for the simple reason that demand collapses once the heating goes off. Insulation upgrades are bought in a panic in October and November, when the first proper cold snap arrives and everyone remembers the loft at once. Lead times stretch and nobody is negotiating.
There is a second argument for doing it early that has nothing to do with price. If the job is done in May, the first winter it is tested is the one you are already paying for. Booked in November, you spend most of the expensive months waiting.
The counter-argument, in fairness, is that problems are easier to spot in cold weather. Condensation shows itself in January and hides in July. If you already suspect damp up there, a winter survey will tell you more than a summer one.
Irvine is really two towns
There is the old burgh around the harbourside and Fullarton, which is older than most people assume, and there is the new town expansion that spread east and south from the late 1960s. They behave differently above the ceiling.
The new town estates are generally good to work in. Open lofts, decent access, shallow joists and a base layer added at some point that has been settling ever since. These are quick, cheap jobs and they are the bulk of what we do in the area.
The older harbourside and burgh properties are more varied, with a higher chance of an untouched roof space and occasionally awkward access. They tend to be the biggest single improvements available, because there is often very little up there to begin with.
Out through Kilwinning, Dreghorn and Springside, and on to the Three Towns of Stevenston, Saltcoats and Ardrossan, the mix is similar, with the added factor that anything close to the water gets a harder time from wind-driven rain. That is a roof maintenance point more than an insulation one, but a roof that leaks will ruin new insulation within a winter, so it is worth checking first.
How we insulate a loft, and what we use
Around a quarter of the heat in an uninsulated house is lost escaping through the roof, so cutting that amount of heat loss at ceiling level is the cheapest insulation measure most people can make and the fastest to repay. Proper insulation will reduce energy use and means lower heating bills, lower energy costs and lower carbon emissions for very little money.
Choosing a type of insulation is simpler than it is usually made to sound, and for an open loft the type of material matters far less than the depth you end up with. Reaching 270mm over 100mm joists means one layer between the joists and a second laid across them at right angles. The figure is guidance for an existing home rather than a legal requirement.
- Mineral wool insulation: the standard specification and the best insulation type for most lofts.
- Sheep's wool and hemp: sustainable insulation materials that handle moisture well, which is worth something on this coast.
- Multifoil: a slim reflective quilt where the depth available is genuinely restricted.
- PIR insulation boards: rigid board for room in roof insulation in a converted loft.
We do not install spray foam insulation. Sprayed onto the roof slope it traps water vapour against the timbers, prevents inspection and has caused real trouble for people selling or remortgaging, as our guide to spray foam explains.
Loft and roof insulation is the whole of what we do. We do not offer cavity wall insulation, underfloor insulation, external wall insulation, or internal wall insulation to internal walls, and we are not a home insulation contractor offering insulation services across every insulation measure. Loft insulation solutions are the whole of our list. If one of those is what you actually need, you want a firm that fits it weekly rather than us adding it on. The best insulation solutions come from people doing that measure every day.
Should old insulation be removed first?
Usually not. Dry, clean insulation can be topped up, which is cheaper and just as effective insulation as starting again. Insulation removal is warranted where the material has been soaked, contaminated or has degraded completely, and it is worth asking any installer proposing it to say specifically what is wrong. Our guide to removing old loft insulation goes into it properly.
Can I board the loft afterwards?
Yes, on a raised system that holds the deck above the full depth. Boards fixed straight onto the joists compress the wool underneath and waste most of what you paid for.
If there is a tank up there. Insulating the ceiling makes the roof space above it colder, so a cold water tank or any exposed pipework needs protecting at the same time. Our guide to water tanks and pipes explains why you never insulate underneath a tank.
What we are actually looking at
Most lofts fall into one of these. The survey is about working out which, and what it needs.
Loft insulation cost in Irvine
The cost of insulation tracks loft area, existing depth and access. New town estate houses are generally at the cheaper end. These ranges are for budgeting, not a quote.
| Job | Typical property | Indicative cost |
|---|---|---|
| Top up to 270mm | New town semi or terrace | £400 – £650 |
| Top up to 270mm | Three-bedroom semi or detached | £550 – £900 |
| Full install, bare loft | Older burgh or harbourside property | £750 – £1,400 |
| Clearing eaves and fitting vent trays | Added where airflow is blocked | £150 – £350 |
| Insulating and sealing the hatch | Added to any of the above | £80 – £180 |
| Removal of existing insulation | Added where genuinely needed | £400 – £900 |
Replace these figures before publishing. Placeholder ranges based on typical UK pricing. Substitute your own North Ayrshire pricing or remove the table.
Loft insulation grants in Scotland
We do not carry out grant-funded installations. We are not registered under any of the schemes below, so all of our work is paid for privately. This is here because the funding is real and worth checking before paying anyone, ourselves included.
If a scheme covers your loft, use an accredited installer rather than us.
The Home Energy Scotland Grant and Loan covers up to 75% of the combined cost of energy efficiency measures such as insulation, to a maximum grant of £7,500, with a £1,500 uplift for rural and island homes. It is not means-tested, but you must own and live in the property and hold a valid energy performance certificate recommending the work.
- ECO4: the Energy Company Obligation, funded by energy suppliers for households on qualifying benefits with an EPC of D to G. Extended to 31 December 2026.
- Great British Insulation Scheme: closed to new applications on 31 March 2026. Pages still offering it are out of date.
- Warmer Homes Scotland: for households in or at risk of fuel poverty.
- North Ayrshire Council: runs area-based schemes targeted at particular streets and postcodes, so eligibility here can depend on where you live rather than what you earn. Worth asking about specifically.
Government grants available in Scotland are not offered for spray foam, and most routes require a TrustMark registered installer. Home Energy Scotland checks every route free on 0808 808 2282. Scheme rules change, and these positions were checked in September 2026.
Choosing between loft insulation installers in Irvine
There is no shortage of firms offering professional loft insulation in Irvine, and the standard of work varies more than the prices do. Most Irvine homeowners are choosing on price alone, which is how a bad insulation installation gets bought. What we would tell any homeowner comparing quotes, ours included:
- Ask whether anyone has actually been into the loft. A price given at the door is a guess.
- Ask them to measure the existing depth and give you the number in millimetres.
- Ask how they will keep the eaves clear. If ventilation does not come up at all, that is the answer.
- Ask whether insulation removal is genuinely needed or simply assumed.
- Get the price and the guarantee in writing before any deposit, and check customer reviews.
We are based in Glasgow and cover Irvine and North Ayrshire regularly, through Kilwinning, Dreghorn, Springside and the Three Towns. We survey first, explain what the roof needs and quote in writing. The same team handles the job from start to finish, we are fully insured, and we have been doing this since 2016. Our customer reviews are published under the Easy-Sprayaway name.
Areas we cover around Irvine
- Irvine
- Kilwinning
- Dreghorn
- Springside
- Stevenston
- Saltcoats
- Ardrossan
- West Kilbride
- Seamill
- Dalry
- Beith
- Kilbirnie
- Stewarton
- Dundonald
Frequently asked questions
Look at the joists. If you can see the tops of them, you are at or below 100mm and there is a clear improvement available. If the timbers are buried and the surface is well above them, you are probably close to where you should be. Push a tape measure down through the wool in a few places rather than judging by eye, because it settles unevenly.
Only if the ventilation is ignored. Insulating makes the roof space colder, so moisture rising from the house is more likely to condense up there. Keeping a clear airflow path at the eaves, fitting vent trays where the gap is tight and making sure extractor fans vent outside rather than into the loft is what prevents it. Done properly it reduces damp risk rather than adding to it.
Spring and summer, when demand drops away. Most people book in October and November after the first cold spell, which is when lead times are longest. Doing it earlier also means the first winter it is tested is one you are already paying to heat.
It depends on the loft area, the existing depth and the access. A top-up in a new town estate house is at the cheaper end, and an untouched loft in an older harbourside property costs more. The survey turns that into a fixed written price.
Usually not. Dry, clean insulation can be topped up with a new layer laid across it. Removal is warranted only where the material has been soaked, contaminated or completely degraded.
270mm of mineral wool at ceiling level. It is guidance for an existing home rather than a legal requirement, and because joists are usually about 100mm deep it takes two layers to get there.
Yes. We work across North Ayrshire including Kilwinning, Dreghorn, Springside, Stevenston, Saltcoats, Ardrossan, West Kilbride, Dalry, Beith and Kilbirnie as well as Irvine itself.
Book a free Irvine loft survey
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