Selecting & Vetting Builders - Avoiding Cowboys & Disputes

Niket Kapur • 17 September 2025

The Assumption


Many homeowners feel confident they already have a “good builder.” Often this is someone recommended by friends, family, or colleagues.


But what worked for someone else’s project may not suit your project. Builder selection is the single most critical step in any renovation or rebuild. Done carefully, it leads to a smooth build. Done poorly, it can cause budget overruns, stress, and disputes.


Why Proper Vetting Matters


Most builders are hardworking professionals, but homeowners often don’t carry out the right checks.


  • Some unscrupulous operators may show finished projects or photos that were not their own work.


  • Looking only at glossy, finished results is misleading - poor workmanship can be hidden behind plaster or paint.


  • Without proper vetting, even well-meaning builders can be mismatched to the size, style, or complexity of your project.


This is why vetting is not about being suspicious - it’s about protecting your investment and ensuring the builder you choose is the right fit.


How to Vet a Builder Properly


  • Look backwards: Review a project the builder completed at least five years ago. Speak to those property owners to see how the work has lasted over time.


  • Look forwards: Visit a current live site. See how it’s managed day to day, how organised it is, and how safety is handled.


  • Speak with current clients: Ask how easy and flexible the builder is to work with. Do they communicate clearly? Are they responsive to changes?


  • Check references: Speak directly with at least two or three previous clients - don’t rely only on written testimonials.


  • Verify insurances: Public liability, employer’s liability, and contract works cover are essential.


  • Verify financial stability: Review the builder’s company structure and trading history. A builder under financial strain poses a risk to your project.


  • Review documents: Are quotes and specifications detailed, or are they vague one-liners? Are they willing to work under a proper written contract?


  • Confirm who does the work: Will the builder’s own team deliver it, or will it be subcontracted to unknown trades?


Common Red Flags


While most builders are professional, there are signs to be cautious of:


  • Requests for a large deposit before work starts.


  • Vague or one-page quotes with no detail.


  • Reluctance to provide insurance certificates or references.


  • “Too good to be true” pricing.


  • Unwillingness to agree to a clear written contract.


These are not criticisms of builders as a whole - they are practical safeguards to avoid risks.


Case Study: From Risk to Confidence


A homeowner in North London chose a builder based solely on a personal recommendation. The quote was vague, no insurance documents were requested, and the photos shown turned out not to be from the builder’s own projects.


Within weeks, disputes arose over extras and workmanship.


The BGP stepped in, carried out due diligence, and sourced an alternative builder who was properly insured, experienced, and well-matched to the project.


“The BGP's process gave us clarity and confidence. The new builder was organised, insured, and easy to work with - the project turned around completely.”


Why Professional Guidance Saves More Than It Costs


At The Building Guidance Partnership, we don’t criticise builders - we partner with the right ones.


Our due diligence ensures the builder is properly matched to your project. With this approach, homeowners typically save multiples of our fee through:


  • Avoiding inflated extras.


  • Preventing costly delays.


  • Ensuring lasting build quality.


  • Recovering VAT correctly.


  • Reducing disputes with clear specifications and contracts.


Take Control of Your Build


Selecting the right builder is the single most important decision you’ll make.



Book a free 20-minute consultation with The Building Guidance Partnership today. We’ll help you carry out due diligence, protect your investment, and ensure your project runs smoothly.


The Building Guidance Partnership

Telephone (020) 8076 3110

WhatsApp +44 7507 705376

www.theBGP.co.uk 

Case Study – Building Without Insurance

by Niket Kapur • 20 March 2026
A homeowner commenced building works on their property without arranging appropriate site insurance. This is not uncommon. There is often an assumption that either the contractor’s insurance will be sufficient, or that an existing household policy will continue to provide cover. In this case, neither applied. Partway through the project, it became clear that there was no valid insurance in place. At that stage, the position became significantly more difficult. Insurers were unwilling to provide cover retrospectively. From their perspective, the risk had already begun without protection, and they were being asked to step into an unknown position. The property was effectively uninsured during an active construction project. We were instructed to review the situation. A structured approach was taken, including: Clearly defining the scope and stage of the works Presenting the risk in a transparent and credible way Engaging directly with specialist insurers Following extensive discussions, we were able to: Secure appropriate site insurance cover Bring the project back within an insurable and protected framework This was not straightforward. It required persistence and a clear understanding of how insurers assess risk. On a construction project, the absence of insurance is not a minor oversight. It is a significant exposure. If you are planning a build, it is worth ensuring that the right cover is in place before work begins. 

Case Study – Council Tax, Planning Delays and Structural Issues

by Niket Kapur • 20 March 2026
A homeowner commenced a significant renovation project with the intention of improving and extending their property. The project did not proceed as expected. There were delays with planning, and during the course of the works, structural issues emerged which required a reassessment of the build. Ultimately, a substantial part of the property had to be demolished mid-project. At this stage, the property was clearly uninhabitable. However, the local authority took a different view. They imposed double council tax on the basis that the property was empty, applying the standard premium used to discourage long-term vacant properties. Representations were made to explain the position. These were rejected. The authority maintained a rigid stance and would not accept that the condition of the property and the nature of the works justified relief. The charges continued to accrue. We were instructed to review the situation. A detailed and structured approach was taken, including assembling the appropriate evidence, reframing the basis of the claim, and engaging with the local authority in a more targeted way. The outcome was clear: Full council tax waiver achieved Over £10,000 recovered for the client Ongoing liability removed This is not an uncommon scenario. Local authorities will often apply standard rules without properly considering the specific circumstances of a construction project. Initial refusals are frequent, but they are not always correct. A properly prepared and presented case can materially change the outcome. Situations like this arise regularly on construction projects. Addressing them correctly can make a significant financial difference. Sunil K Radia The Building Guidance Partnership Telephone (020) 8076 3110 WhatsApp +44 7507 705376 www.theBGP.co.uk

Regulatory Compliance Oversights That Could Sink Your Construction Project

by Niket Kapur • 20 March 2026
Most homeowners focus on design, finishes and cost when undertaking a building project. Very few focus on compliance. That is where serious problems arise. This note sets out the key regulatory and risk areas that are frequently overlooked. These are not minor technicalities. They are issues that can expose you to financial loss, uninsured risk and legal liability. 1. Notifying Your Mortgage Lender If your property is subject to a mortgage, your lender has a legal charge over it. That property is their security. Most mortgage terms require you to notify the lender before carrying out structural works Some lenders require formal consent Failure to notify can place you in breach of your mortgage conditions This is often ignored. It should not be. 2. Insurance During Construction Standard household insurance is usually not valid during major renovation or structural works. Many policies specifically exclude properties under construction Continuing without appropriate cover can leave you completely exposed You should: Notify your existing insurer before works commence Arrange specialist renovation insurance where required Ensure cover includes fire, flood, theft, vandalism and public liability Do not assume you are covered. Check. 3. Contractor Insurance Is Not a Substitute Many homeowners assume the contractor’s insurance will protect them. That assumption is dangerous. You must verify: The level of cover is sufficient for the scale of the project The policy includes public liability, employer’s liability and contract works Cover extends to damage to neighbouring properties Liability includes injury to third parties, including trespassers Do not accept a certificate at face value. Review the detail. 4. VAT: Getting It Wrong Is Expensive VAT treatment in construction is complex but critical. New builds may qualify for 0 percent VAT Properties empty for two years or more may qualify for 5 percent VAT on renovation works Evidence of vacancy is essential and must be properly assembled Failure to structure this correctly can cost many thousands of pounds. 5. Council Tax on Uninhabitable Properties Where a property is genuinely uninhabitable, relief or exemption from council tax may be available. In practice: Applications are often rejected at first instance Local authorities do not always guide applicants through the correct route A structured and informed approach is required to secure the correct outcome We regularly assist clients in securing substantial savings, including backdated recoveries where appropriate. 6. Site Safety and Residual Liability Even when a contractor is in possession of the site, the homeowner can still carry risk. If someone is injured on site, including a passer-by or trespasser, liability may arise Simply appointing a contractor does not remove your exposure You should ensure: Proper site security is in place Risk assessments and method statements are being followed Insurance arrangements align with the actual risks on site This is not theoretical. Claims do arise in these circumstances. Final Thought These issues are rarely considered at the outset, yet they carry real consequences. Getting them right early avoids problems later. Contact us today so that we can review your arrangements.  Sunil K Radia The Building Guidance Partnership Telephone (020) 8076 3110 WhatsApp +44 7507 705376 www.theBGP.co.uk