- [Home](/) - / [Guides](/#guides) - / How much does loft insulation cost in Orpington? Learn # How much does loft insulation cost in Orpington? [Eco Spray Foam Insulation](/) fits loft insulation from Cray Avenue, Orpington. This guide sets out our own rates, the published UK averages, and what changes the price. Updated 8 November 2026. Prices are our rates and published UK estimates, not a quote. The short answer Our mineral wool loft insulation costs £10 per square metre at 100mm, £20 at 200mm and £30 at 300mm. Checkatrade's UK averages for 270mm are about £654 for a terraced house, £825 for a semi and £1,206 for a detached house or bungalow. We give a fixed price after a free survey. The figures below are our own published rates, plus UK averages from Checkatrade’s loft insulation cost guide (page updated July 2026, checked 8 November 2026). They show what is normal for a loft in Orpington and the towns around it. They are not a quote: you get a fixed price after a free survey. ## Our loft insulation prices MaterialPrice per m² Mineral wool, 100mm£10 Mineral wool, 200mm£20 Mineral wool, 300mm£30 SuperFOIL SF19+£45 SuperFOIL SF40£65 Batten and board over SuperFOIL£55 Mineral wool, including Earthwool, is the usual choice for a standard loft. It comes in rolls that we lay between the joists and then across them. SuperFOIL and insulation boards cost more per square metre, but they are much thinner, so they suit lofts where space is tight or the room will be used. ## What does it cost by house type? Checkatrade publishes UK averages for 270mm quilt insulation: House typeTypical cost Terraced houseabout £654 Semi-detached houseabout £825 Detached houseabout £1,206 Bungalowabout £1,206 Checkatrade puts the average for a basic quilt job at about £725. These are national averages, not our prices, and your own price depends on the size of your loft. A bungalow costs as much as a detached house because its loft covers the whole footprint of the home. ## How thick should it be? Checkatrade gives 270mm as the recommended depth for quilt insulation. If your loft has an older, thinner layer that is still dry and clean, a top-up is usually enough: we add a second layer across the joists rather than strip out insulation that still works. ## A worked example A typical semi-detached loft might be around 40 m². At our rates: - Topping up with 200mm of mineral wool: 40 × £20 = £800 - A full 300mm layer: 40 × £30 = £1,200 Your loft may be bigger or smaller, so we measure it at the survey and put the area on the quote. ## What pushes the price up? Old insulation that has to come out adds to the cost. Fibre insulation is £10 per m² to remove, and vermiculite, cellulose and rigid boards are £15 per m². Premium materials cost more. SuperFOIL runs from £45 to £65 per m², compared with £10 to £30 for mineral wool. Access matters too. A new hatch is £200, a ladder £150, or both together from £300. If you want storage, new raised boarding is £55 per m²; see the [loft boarding cost guide](/guide/loft-boarding-cost/). Finally, the survey may turn up problems such as damp, poor ventilation or old wiring that needs an electrician. We tell you about these before any work starts. ## What is included at no extra charge Where the job needs it, we include waste removal, anti-fungal timber treatment, hatch insulation and draught proofing, tank and pipe insulation, lap vents and a completion certificate. ## How long does it take, and is it worth it? Checkatrade says a loft insulation job is usually finished in less than a day. It also puts the saving on energy bills at up to £300 a year, depending on the type of house and how you heat it. A loft with little or no insulation will save more than one that only needs a top-up. ## How to compare quotes Ask every firm the same questions: - How many square metres does the price cover? - Which material, and how thick? - Is old insulation removed, and is that extra? - Is VAT included? - Is there a minimum charge? A low headline price that leaves out removal or access can end up costing more than a full quote. For most Orpington homes, loft insulation costs from a few hundred pounds to around £1,200, depending on the size of the loft and the thickness you choose. Our mineral wool starts at £10 per m². ## Common questions ### Is loft insulation priced per square metre? Usually, yes. We price per square metre of loft floor area, so a 40 m² loft at 300mm mineral wool is £1,200 at our rate of £30 per m². Hatches and ladders are fixed prices. ### Do I need to remove my old insulation first? Not always. If the old layer is dry and clean, we top it up. If it is wet, damaged or contaminated, it comes out first. Our removal rate for old fibre insulation is £10 per m². ### Can I get loft insulation for free? Some households can get funding through government schemes, depending on income, benefits and the home. Schemes and deadlines change, so check the current rules on GOV.UK before you rely on one. Want a fixed price for your own loft? Book a free survey. Call [01689 390157](tel:+441689390157) (Monday to Sunday, 9am to 7pm) or use the form below. ## More guides - [How much does loft boarding cost?](/guide/loft-boarding-cost/) - [How much does spray foam removal cost?](/guide/spray-foam-removal-cost/) - [How should you insulate a garden room or shed?](/guide/garden-room-insulation/) - [Can I get a mortgage on a house with spray foam?](/guide/spray-foam-mortgage/) [Back to loft insulation in Orpington](/)