Hiring the wrong home developer can cost you thousands of pounds, months of stress, and a project that falls short of your vision. A poor choice might mean structural issues, incomplete work, disputes over payment, or a developer who disappears mid-project. The financial and emotional toll of putting things right afterwards is substantial—far more expensive than getting it right the first time.
The good news: thorough research and the right questions eliminate most of the risk. This guide walks you through what to look for, what to ask, and what to avoid when choosing a home developer in the UK.
Before you even arrange a site visit, check whether a developer holds relevant professional credentials. These aren't just badges on a website—they represent verified standards and a commitment to best practice.
Ask for proof of these credentials, not just claims. A legitimate developer will happily provide certificates or allow you to verify membership online.
1. How long have you been trading, and what's your track record with similar projects?
Experience matters. A developer who has successfully completed 50 kitchen extensions has learned lessons a first-timer hasn't. Ask for a portfolio of completed work similar to yours—not just pictures, but client references you can contact. New developers aren't automatically bad, but they carry more risk.
2. Can you provide three recent client references, and may I visit a completed project?
References should be from recent work (within the last 12–18 months), and they should be willing to let you speak to satisfied clients. Better yet, visit a finished project if possible. You'll see the quality of workmanship firsthand and notice details that photos hide.
3. Will you provide a detailed written quote with a breakdown of costs?
A vague quote is a red flag. You need itemised costs: labour, materials, labour rates per day, timescales, and payment milestones. This prevents disputes later and shows the developer has thought through the project properly.
4. What happens if costs exceed the estimate, and by how much?
Projects sometimes uncover unexpected issues—asbestos, subsidence, rotten timber. Clarify in advance: what circumstances justify cost increases? What's the maximum overage before you agree? Are additional costs approved in writing before work proceeds? This protects both of you.
5. What's included in your timeline, and what could delay it?
Realistic timescales matter more than optimistic ones. Ask what dependencies exist: council approvals, Building Regulation sign-offs, access to materials. A developer who promises to finish regardless of weather or inspections is unreliable. You want honesty, not false certainty.
6. Are you covered by public liability insurance, and do you have employers' liability insurance?
Public liability protects you if someone's injured on your property or neighbouring property is damaged. Employers' liability is required by law if they employ staff. Request copies of current certificates—not just a promise they're insured. Check the coverage amount is adequate for your project scale.
7. How do you handle disputes, and what's your complaints procedure?
Ask how complaints are logged and resolved. Do they belong to a trade body with a formal dispute resolution scheme? If something goes wrong, you want a clear escalation path. Developers with nothing to hide welcome this question.
8. Will you provide a contract, and can I have my solicitor review it before I sign?
Never work without a written contract, even for small projects. It protects both parties by clarifying scope, costs, timescales, and responsibilities. A reputable developer won't object to legal review. In fact, they'll expect it.
9. What guarantee or warranty do you provide on completed work?
Industry standard is 12 months' defects warranty on new work. Some developers offer longer. This should cover workmanship faults, not wear and tear or damage caused by lack of maintenance. Get this in writing.
10. Are you registered with a complaint scheme (TrustMark, FMB, CIOB)?
If something goes genuinely wrong and you can't resolve it directly, membership in a regulated body gives you formal recourse. It's insurance for you.
Online reviews are useful, but not all are real. Genuine reviews tend to be specific: they mention particular aspects of the work, timescales, communication style, and outcomes. They're balanced—even satisfied customers may mention minor hiccups.
Be cautious of:
Genuine negative reviews often flag real issues: poor communication, delays, incomplete work, disputes over extras. Don't discount a developer because of one bad review, but notice patterns. Multiple complaints about the same problem are worth taking seriously.
Never choose based on price alone. Three quotes for the same project might vary significantly—not because someone's overcharging, but because they're doing different things.
Compare like-for-like: what's included? Are specialist finishes the same? Labour rates? Timescale? A cheap quote might skip groundwork inspections or use cheaper materials. An expensive quote might include extras you don't need. Read each line item carefully and ask questions about differences.
The middle quote is often the safest bet, provided the developer is qualified and well-reviewed.
You're now equipped to make an informed choice. Start by exploring qualified, reviewed developers in your area on homedevelopers.co.uk. Filter by accreditation, read genuine client feedback, and shortlist three to five candidates. Phone each one, ask these questions, and meet them in person. Trust the process—it takes time, but it saves money and stress.
The right developer isn't the cheapest or the fastest. It's the one who listens, communicates clearly, holds proper qualifications, and proves they've delivered quality work before. Choose carefully, and your home project will be a genuine success.
```