Budgeting17 Oct 2024
Hidden costs that blow your extension budget
The builder's quote is only part of the cost. Planning fees, building regulations, skips, scaffolding and contingencies can add thousands. Here is what to budget for.
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Advice & guides
Straightforward advice for your building project.
Whether you are a first-time homeowner or a seasoned builder, our guides help you plan smarter, choose the right materials and avoid common pitfalls.
Showing 25–34 of 34 articles · page 3 of 3.
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Avoiding builder scams12 Sept 2024
How to avoid cowboy builders: a homeowner checklist
Cowboy builders cost UK homeowners millions every year. Learn the warning signs, the essential checks and the paperwork that protects you before any work begins.
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Builder selection15 Aug 2024
Cowboy builder warning signs: red flags to spot early
Cowboy builders cost UK homeowners millions every year. Here are the clear warning signs to look for before you sign a contract or pay a deposit.
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Planning & regs18 Jul 2024
Planning permission vs permitted development: UK guide
Many home extensions can be built without full planning permission. Here is how permitted development works, what the limits are and when you still need approval.
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Materials & sourcing13 Jun 2024
Should you buy materials or let your builder buy them?
Buying materials yourself can feel like a saving, but it can also cost you discounts, warranties and site time. Here is how to decide who should buy what.
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Quotes & contracts16 May 2024
How to compare builder quotes line by line
Comparing builder quotes is not about finding the lowest number. It is about making sure every builder is pricing the same scope, specification and terms.
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Budgeting18 Apr 2024
Why material prices matter before your first build
If you do not know what bricks, blocks, cement and timber actually cost, you cannot judge whether a quote is fair. Here is how to research material prices before your first build.
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Budgeting14 Mar 2024
Why the cheapest builder quote often costs you more
A cheap quote is tempting, but it often hides missing items, lower specifications and future extras. Here is why the lowest price rarely means the best value.
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Builder selection15 Feb 2024
How to find the right builder for your project
Finding the right builder is the difference between a smooth project and a nightmare. Here is a practical vetting process that protects your money, your home and your sanity.
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Timing & seasonality18 Jan 2024
The best time of year to start building work
Spring and summer are busy, expensive and hard to book. Winter is quieter, trades are more available and prices can be softer. Here is how to choose the right season for your project.
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Building advice FAQs
How do I avoid cowboy builders on a home extension?
Verify CSCS cards, check public liability insurance (£2m minimum), ask for 3 recent local references, take written quotes from at least 3 builders, and never pay more than 25% up front. Our advice articles cover each of these checks in detail.
How long does a typical home extension take?
A single-storey rear extension on a typical semi takes 8-12 weeks from breaking ground to completion. A two-storey extension takes 14-20 weeks. The longest phase is always groundworks and foundation curing — 4-6 weeks alone.
Should I buy building materials myself or let the builder?
Most extension projects benefit from the homeowner sourcing the materials: trade-counter pricing on aggregates, bricks and timber is usually 20-30% below builder rate. The trade-off is time spent managing deliveries and check-ins. Our calculators and trade quotes can save you both ways.