Reputable Contractor: Simple Steps to Hire a Trustworthy Builder

When you start a home extension or a conservatory build, the biggest decision is who you let into your house. A reputable contractor can mean the difference between a smooth finish and a nightmare that drags on for months. Below are the exact actions you should take to make sure the builder you pick is reliable, insured, and capable of delivering the quality you expect.

Key Checks Before You Hire

1. Confirm licences and insurance. In the UK, any contractor working on structural work must hold the proper CQC or CSCS cards and have public liability insurance. Ask for certificates and verify them online – a legit business will have no problem showing you proof.

2. Look for industry affiliations. Membership in organisations such as the Federation of Master Builders (FMB), the NHBC, or the Chartered Institute of Building (CIOB) is a solid sign of professionalism. These groups enforce codes of conduct and often require ongoing training.

3. Review their portfolio. A reputable contractor will keep a gallery of past projects, especially ones similar to yours. Ask to see before‑and‑after photos, site plans, and ideally a site visit to a current job. Real‑world examples tell you how they handle timelines, quality, and client communication.

4. Get multiple written quotes. Never settle for the cheapest estimate alone. Compare at least three detailed quotes, each breaking down labour, materials, contingencies, and payment milestones. This makes it easier to spot hidden costs and gauge how transparent the contractor is.

5. Check references and online reviews. Call at least two recent clients and ask about their experience – were deadlines met, were there unexpected charges, how did the contractor handle issues? Also scan Google, Trustpilot, or local forums for patterns in feedback.

Red Flags to Watch Out For

Unclear contracts. If the agreement is vague about scope, deadlines, or warranties, walk away. A reputable contractor will provide a clear, signed contract that outlines every stage.

Requests for large upfront payments. Expect a modest deposit (usually 10‑15%). Anything demanding 50% or more before work begins is a warning sign.

Lack of a physical address or office. Companies operating solely online or from a PO box can be harder to hold accountable. Verify a real office and a landline number.

Too‑good‑to‑be‑true prices. Extremely low bids often mean corners are being cut on materials or labour, which can lead to future repairs and added cost.

Poor communication. If the contractor is slow to return calls, vague about timelines, or dismissive of your questions, expect the same attitude during the build.

By following these checks, you’ll filter out the fly‑by‑night operators and focus on contractors who have a proven track record. Remember, a reputable contractor is not just about price – it’s about reliability, safety, and delivering a finish that lasts.

Ready to start? Write down the questions above, start contacting local builders, and use the checklist to compare each one. In the end, the extra effort you put in now saves you time, money, and stress when the work begins.