Planning a home renovation or hiring a builder in London or Surrey for a bespoke house extension can be exciting, but choosing the wrong builder can quickly turn your dream project into a nightmare. In Surrey and London’s competitive property market, many investors and families rush the hiring process and end up with cost overruns, poor quality, or delays. To help your project run smoothly, here are the top five mistakes to avoid when hiring a builder, along with practical tips for finding a trustworthy contractor.
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1. Hiring Based Solely on Price
It’s tempting to pick the cheapest quote, but the lowest price rarely means the best value. In many cases, it can lead to poor workmanship or hidden costs later on. Instead of focusing only on cost, compare the overall value each builder offers.
• Get at least 3–4 detailed quotes.
• Make sure each quote covers the same scope of work.
• Be cautious of dramatically low bids they may signal corner-cutting.
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2. Skipping References When Hiring a Builder in London or Surrey
Never hire a builder without checking their past work. A reputable contractor will happily share references and a portfolio of completed projects.
• Ask to speak to previous or even current clients.
• Review photos of similar renovations or extensions.
• Check online reviews and testimonials for consistency.
This step helps you confirm that the builder’s style and quality align with your expectations.
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3. Overlooking Credentials and Insurance
Even a highly recommended builder should have the right paperwork in place. Always ask for proof of insurance and relevant qualifications before hiring a builder in London or Surrey.
• Confirm they hold public liability insurance.
• Ask for trade certifications or memberships (e.g. Federation of Master Builders).
• Ensure they have experience with projects similar to yours, such as loft conversions, double-storey extensions, or full property renovations.
This not only protects your investment but also ensures the work complies with UK building regulations.
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4. Skipping a Detailed Written Contract
Never start work without a clear, written contract. A proper agreement should outline:
• Scope of work and materials to be used.
• Project timeline with start and finish dates.
• A fair payment schedule (avoid builders demanding very large upfront deposits).
• How changes and extras will be handled.
A contract protects both you and your builder from misunderstandings and delays.
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5. Poor Communication and Planning
Strong communication is the backbone of a successful build. Without it, even the best plans can fall apart.
• Set clear expectations for regular updates.
• Agree on how changes will be managed and documented.
• Allow a contingency of 10–15% in your budget and timeline for unexpected delays or costs.
Good communication ensures you stay informed and reduces the risk of disputes or frustrations during the building process.
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Conclusion
Hiring a builder is one of the biggest decisions in a renovation or custom home project. By avoiding these common mistakes , choosing value over price, checking references, verifying credentials, insisting on a contract, and keeping communication clear you’ll give your project the best chance of success.
If you’re considering hiring a builder in London or Surrey for a high-quality renovation, extension, or custom home, trust the experts at Signature Build Properties. 👉 Contact us today to discuss your project and take the first step towards building your dream home.
