Home Improvements Guide UK (Costs, Finance, VAT Relief 2026)

How Much Home Improvements Cost

Home improvement costs vary widely by region, property type, and specification, but typical 2026 estimates for England and Wales are as follows. Kitchen: a basic refit starts at £5,000–£10,000, a mid-range kitchen costs £12,000–£20,000, and a bespoke high-end kitchen can exceed £35,000. Bathroom: a standard refit costs £3,500–£7,000, while a luxury bathroom with wet room starts at £10,000. Single-storey extension: £30,000–£60,000 depending on size, foundations, and finishes. Loft conversion: £25,000–£50,000 for a Velux-style conversion, up to £60,000+ for a dormer with ensuite. New boiler: £2,000–£4,500 including installation. Double glazing: £4,000–£8,000 for a 3-bedroom house. Rewiring: £3,500–£7,000 for a 3-bed property. Solar panels: £6,000–£8,500 for a typical 4kW system. Driveway or paving: £3,000–£10,000 depending on area and materials. Structural work (removing walls, underpinning): £3,000–£15,000. These estimates exclude VAT (20%) on labour and materials unless the work qualifies for reduced VAT (see the VAT relief section below). Always get three itemised quotes for any project over £1,000, and check the contractor's accreditation (e.g., FMB, Which? Trusted Trader, or TrustMark). See the Home Insurance vs Warranty guide → for protecting your improved home.

Paying with Savings vs Borrowing

Using savings to pay for home improvements is almost always the cheapest option — you avoid interest charges, arrangement fees, and credit checks. If you have enough in an easy-access savings account or ISA, paying outright saves you money and avoids taking on debt. However, depleting your emergency fund (ideally 3–6 months of expenses) is risky — if something goes wrong after the renovation, you may need to borrow at a higher rate. A hybrid approach works well: use savings for part of the cost and borrow the rest. Borrowing options include personal loans (3–12% APR depending on credit score, amounts £3,000–£25,000, terms 1–7 years); credit cards with 0% purchase or balance transfer offers (good for smaller projects up to £5,000, but watch for interest after the promotional period); homeowner loans (secured against your property, rates from 6–12% APR, larger amounts, but risk repossession if you default); and equity release (for over-55s, no monthly repayments, but reduces your estate's value). The FCA regulates most home improvement finance. Be wary of builder-offered finance on the spot — you may get a better deal arranging your own loan. Compare APR, total repayable, and early repayment charges before committing. Our Personal Loans guide → has more detail on borrowing costs.

Home Improvement Loans and Secured Lending

Unsecured personal loans are the most common way to finance home improvements. Most lenders offer £3,000–£25,000 at rates from 3% APR for excellent credit up to 12%+ for poorer credit. The loan is not tied to your property, so there is no risk of repossession if you fail to repay (though defaulting will harm your credit score and may lead to county court judgments). Secured homeowner loans (sometimes called second-charge mortgages) are secured against your property and are typically used for larger sums (£10,000–£100,000) or when you have poor credit. Interest rates range from 6–12% APR, but you risk losing your home if you do not keep up repayments. Secured loans often have early repayment charges (typically 1–5% of the outstanding balance). Home improvement loans from builders — some builders and kitchen/bathroom companies offer finance through partner lenders (often interest-free for 12 months or 0% finance). These can be good value if you pay off the balance within the promotional period, but the interest can be high (20%+) after that. Always read the terms carefully. The FCA requires all consumer credit adverts to show a representative APR, so compare like-for-like. For smaller projects (under £5,000), an interest-free credit card may be cheaper than a loan. For larger projects (over £30,000), remortgaging to release equity may offer the lowest rates (4–6% in 2026), but arrangement fees and legal costs apply. Use a comparison website to check personal loan rates without affecting your credit score.

Government Grants and Schemes

Several government schemes can help with the cost of energy-saving and disability-related home improvements. Great British Insulation Scheme (formerly ECO+): provides free or heavily discounted loft, cavity wall, and solid wall insulation to low-income households and those in lower council tax bands. Eligibility depends on your property's energy efficiency rating (EPC band D–G) and income. Energy Company Obligation (ECO4): requires energy suppliers to fund energy-saving measures (insulation, new boilers, heating controls, solar panels) for low-income and vulnerable households on means-tested benefits. Apply through your energy supplier or a government-approved installer. Boiler Upgrade Scheme (BUS): provides £7,500 towards the cost of an air-source or ground-source heat pump, replacing fossil fuel heating systems. Available to all households in England and Wales. Home Energy Scotland Grant and Loan: grants up to £7,500 (or £9,000 for rural areas) for energy-saving improvements, plus up to £30,000 in interest-free loans for renewables like solar panels and heat pumps. Disabled Facilities Grants (DFG): means-tested grants of up to £30,000 in England (more in Scotland and Wales) for adaptations such as stairlifts, wet rooms, ramps, and accessible bathrooms. DFGs are administered by your local council. VAT relief is also available for certain adaptations (see next section). Check the Universal Credit guide → if you receive benefits that may affect grant eligibility.

VAT Relief on Energy-Saving and Disability Adaptations

Reduced VAT of 5% applies to certain energy-saving materials and installations in residential properties, including solar panels, heat pumps, biomass boilers, insulation (loft, cavity wall, solid wall, floor), draught-proofing, and micro-CHP (combined heat and power). The reduced rate applies to the materials and installation, but only when the work is carried out by a VAT-registered installer. If you buy materials yourself and get a friend to install them, you pay 20% on the materials. The reduced rate is available throughout the UK. Zero-rate VAT (0%) applies to new-build homes (first sale within 3 years of completion). For disability adaptations, zero-rated VAT applies to work designed for a person with a disability, including: installing ramps, stairlifts, hoists, widening doorways, modifying bathrooms (e.g., level-access showers), and putting in grab rails or accessible controls. The customer must be the disabled person, or the work must be for their benefit. The contractor must confirm the customer qualifies for the relief. For both energy-saving and disability relief, the contractor should note the applicable VAT rate on the invoice. If you have been charged 20% VAT incorrectly, you can ask your contractor to re-invoice. Check GOV.UK VAT notices 708/6 (energy-saving) and 701/7 (disabled) for full details. Always ask your contractor before the work starts whether the reduced rate applies.

Choosing and Managing Contractors

Selecting the right contractor is crucial for a successful home improvement project. Start by getting at least three quotes from different contractors for the same detailed specification. Ask for references from recent similar projects and check online reviews. Verify that the contractor is registered with a competent person scheme (e.g., NICEIC or Gas Safe Register for electrical/gas work, FENSA or CERTASS for double glazing, TrustMark for general building work). For projects over £3,000, ask for a written contract that sets out the scope, materials, timeline, payment schedule, and warranties. Avoid paying more than 25% upfront — stage payments tied to completion milestones are standard. The Consumer Rights Act 2015 gives you protection if the work is not done with reasonable care and skill. For larger projects (over £10,000), consider a home improvement insurance-backed guarantee (e.g., through TrustMark or the NHBC). If the contractor offers finance, check the FCA authorisation — they should be on the Financial Services Register. Deposits paid by credit card (over £100) give you additional protection under Section 75 of the Consumer Credit Act if the contractor goes bust. If the job goes wrong, you can escalate to RICS (for disputes over £400,000+) or the small claims court (up to £10,000). For disputes over consumer credit, contact the Financial Ombudsman Service. Keep a file of all correspondence, contracts, and receipts — digital copies are fine. See our Small Business Financing guide → if you are improving a commercial property.

FAQs

Can I add home improvement costs to my mortgage?

Yes. If you have equity in your home, you can remortgage or take out a further advance to fund improvements. This often offers lower interest rates than personal loans, but arrangement fees, valuation fees, and legal costs can add up. Talk to a mortgage broker before remortgaging.

Is VAT always 20% on home improvements?

No. Reduced VAT of 5% applies to energy-saving materials and disabled adaptation work installed by a VAT-registered contractor. Some disability adaptations qualify for 0% VAT. Check with your contractor before work begins. New-build homes are zero-rated.

Are home improvements tax deductible?

Home improvements are not tax-deductible for your main residence. However, if you let out the property (as a landlord), repairs and maintenance are deductible against rental income. Home improvements that increase the property's value are added to the cost base for Capital Gains Tax purposes when you sell.

What is the best way to pay for a small home improvement (under £5,000)?

Use savings if you have them. Otherwise, a 0% purchase credit card or an interest-free overdraft (if available) is often cheaper than a personal loan. Aim to repay the balance within the promotional period to avoid high interest charges.

Do I need planning permission for home improvements?

Many improvements fall under Permitted Development rights and do not need planning permission. However, extensions, loft conversions, structural changes, and work on listed buildings or conservation areas likely do. Check with your local planning authority before starting work to avoid enforcement action.