Most asked questions
Quick answers to the questions UK homeowners ask most.
How much does a new boiler cost in 2026?
A new combi boiler costs £1,800–£3,500 installed. System boilers are £2,000–£4,000 and conventional boilers £2,200–£4,500. The price includes the unit and installation by a Gas Safe registered engineer. Expect to pay more in London and the South East.
Can I do electrical work myself?
Minor work like changing sockets and light fittings is allowed. However, anything in a bathroom, kitchen, or outdoors, plus new circuits, consumer unit changes, and work in special locations must be done by a Part P certified electrician. DIY electrical work that doesn't meet regulations can be dangerous and affect your insurance.
What should a written quote include?
A proper quote should include: detailed scope of work, materials specification, total cost (labour + materials), VAT if applicable, payment schedule and terms, estimated start and completion dates, and what happens with unforeseen issues. Get everything in writing before work starts.
Browse by topic
Find answers organised by the topics that matter most to your project.
Costs & Budgeting
How much does a new kitchen cost in the UK?
A budget kitchen refit starts around £5,000–£8,000. Mid-range is £10,000–£18,000 and a premium kitchen with bespoke units and high-end appliances can cost £25,000+. Labour typically adds £2,000–£5,000 depending on complexity.
What is the average cost of a loft conversion?
A Velux loft conversion typically costs £25,000–£40,000. A dormer conversion is £35,000–£60,000, while an L-shaped dormer or mansard can exceed £60,000. Costs vary significantly by region — London prices are typically 20–30% higher.
How much should I budget for a bathroom refit?
A basic bathroom refit costs £3,000–£5,000. A full renovation with new suite, tiling, and plumbing is £6,000–£12,000. A high-spec bathroom with underfloor heating and designer fixtures can cost £15,000+.
Hiring Tradespeople
How do I know if a tradesperson is trustworthy?
Look for verified ID, public liability insurance, and genuine customer reviews. On Job2Build, every tradesperson is identity-verified and insured before they can quote. Always ask for references and check their portfolio of previous work.
Should I get multiple quotes?
Always. We recommend at least 3 quotes for any job over £500. This helps you compare prices, assess communication style, and gauge expertise. On Job2Build, you receive up to 4 quotes per job automatically.
What questions should I ask a tradesperson before hiring?
Ask about their experience with similar jobs, expected timeline, whether the quote includes materials, what happens if problems are found, their insurance cover, and whether they use subcontractors. A good tradesperson will welcome these questions.
Planning & Permissions
Do I need planning permission for an extension?
Single-storey rear extensions up to 4m (detached) or 3m (other houses) usually fall under permitted development. Larger builds, front extensions, or work in conservation areas typically need planning permission. Always check with your local authority first.
What is building regulations approval?
Building regulations ensure structural safety, fire safety, energy efficiency, and accessibility. Unlike planning permission, building regulations approval is required for most structural work including extensions, electrical work, and plumbing changes.
Do I need a party wall agreement?
If your work affects a shared wall, boundary, or is within 3–6 metres of a neighbouring building's foundations, you likely need a party wall notice. You must serve this at least 2 months before work starts. A party wall surveyor can help manage the process.
Home Improvement
What is the best way to insulate an older house?
Cavity wall insulation is the most cost-effective option for houses with cavity walls (typically post-1930). For solid-wall properties, external or internal wall insulation is needed. Loft insulation to 270mm is one of the cheapest and most effective upgrades for any home.
How long does a full house renovation take?
A full renovation of a 3-bed house typically takes 3–6 months depending on scope. A kitchen alone takes 2–4 weeks, a bathroom 1–2 weeks, and structural work like extensions can add 3–4 months. Always add a 20% time buffer for unexpected issues.
Is it worth getting an energy performance certificate?
An EPC is legally required when selling or renting. It rates your home A–G for energy efficiency. Beyond compliance, it highlights where you can save on energy bills — common recommendations include boiler upgrades, insulation, and double glazing.
- 50+
- Questions answered
- 4
- Topic categories
- 2026
- UK prices updated
- Free
- Always free to read