Finance commercial insulation retrofits from £5,000 to £300,000, covering walls, roofs and building envelope upgrades. HP, lease, or refinance, compare rates from 40+ lenders.
Yes, insulation retrofits are financed as a standard asset purchase, usually on hire purchase or a lease, with the machine itself acting as the security. UK prices typically run £5,000 to £300,000, and most deals are written over 12–84 months with a deposit of around 10–20%. Decisions typically take 24–48 hours. Used machines are financeable too, usually with a shorter term.
Typical Cost
£5k – £300k
Approval Speed
24–48 hours
Fabric-first approach recommended
Rates From
4.5% APR
Your estimate
Indicative only. Not a quote and not an offer of finance.
Pre-filled with a typical insulation retrofit price. Indicative only, not a quote.
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Check EligibilityOn a purchase price of £45,000: a 10% deposit of £4,500, then 48 monthly payments of £949 at 5.9% APR representative (fixed). Total amount payable £50,052, including the deposit. The rate you are offered depends on your business and the asset.
Guide prices for sizing a finance agreement, not quotes. Manufacturers in this market mostly price on application, so where a current UK list price could not be confirmed the row describes a specification class rather than naming a model. Your supplier quote is what the agreement is written against.
| Machine or specification | Guide price | Type |
|---|---|---|
| Cavity Wall Insulation (Knauf, per property) | £2,000 – £4,000 | Cavity Wall Insulation |
| Roof/Loft Insulation (Rockwool, per m²) | £25 – £45 per m² | Roof Insulation |
| External Wall Insulation (Kingspan Kooltherm, per m²) | £90 – £140 per m² | External Wall Insulation |
| Full Commercial Building Envelope Upgrade | £80,000 – £180,000 | Whole-Building Retrofit |
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Check EligibilityInsulation works generally qualify as plant and machinery, or in some cases as integral features, for capital allowances purposes, so a business can typically set some or all of the cost against taxable profits through the Annual Investment Allowance or other first-year reliefs, subject to your total qualifying spend for the year and how the works are categorised. Confirm current treatment with your accountant, since the classification can differ between structural building works and standalone plant.
Improving the building fabric, roof, walls and sometimes floors, is usually the first thing worth addressing before investing in new heating or cooling plant, since a poorly insulated building wastes a share of whatever heat or cooling it generates regardless of how efficient that plant is. The typical buyer is a business with an older commercial property planning either a heating system upgrade (where insulation improves the case for a heat pump by reducing peak heat demand) or a standalone fabric improvement project. Achievable heat loss reduction depends heavily on the existing construction, so a proper survey identifying current U-values and the most cost-effective areas to treat is the right starting point before setting a finance amount.
Several of our 200+ lenders specialise in businesses with imperfect credit histories. You may need a larger deposit or personal guarantee, but options exist. Checking your options here does not affect your credit score, because we do not run a credit search to match you. A lender will run their own checks only if you decide to apply.
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