
Hiring a builder is one of the most important decisions you’ll make when starting a renovation, extension, or new build. Choosing the wrong one can lead to delays, budget blowouts, or poor workmanship. Whether you’re planning a loft conversion in Dartford or a kitchen extension in Maidstone, asking the right questions up front can save you time, money, and stress.
Always ask to see public liability and employer’s liability insurance. Make sure your builder is registered with a recognised body, especially if you’re in areas like Kent or South East London, where building control is strict.
A reputable builder should offer references from recent clients. Ideally, ask for examples of similar projects (e.g. supported living refurbishments or rear extensions). If possible, view their work in person.
Be wary of anyone asking for large payments upfront. A fair payment schedule should be tied to milestones (e.g. foundation, structure, finish). This protects you if the work is delayed or abandoned.
Experienced builders will often liaise with your local authority on planning permissions and building regs. In towns like Erith or Gravesend, this can help avoid legal issues or costly rework.
Reliable builders are in demand. Ask how soon they can start and how long the job will take. Get it in writing. If you’re coordinating with other trades (electricians, plumbers, etc.), clear timelines are essential.
You may meet the business owner during quotes, but not see them again. Ask who will be working on your property day-to-day and whether they use subcontractors or in-house staff.
A professional builder should offer a written contract and snagging process. Ask about guarantees on workmanship and how disputes are resolved.
Don’t be afraid to ask questions. A good builder will welcome them. Use this checklist to protect your investment, avoid common pitfalls, and ensure your project runs smoothly from start to finish.