TradeMatch vs TrustMark for Extension Builders
Comparing platforms for extension builder work in the UK? Here is how TradeMatch and TrustMark stack up across the three things that matter for hiring a extension builder: how much you will pay, how well the tradesperson has been vetted, and what happens if the job goes wrong. Average extension builder cost in the UK: £15,000–£50,000.
Updated May 2026 · By TradeMatch Editorial Team
£15,000–£50,000
UK average for extension builder work in 2026. TradeMatch customers typically pay 5–15% less than on TrustMark because of competitive quoting and transparent pricing.
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TradeMatch vs TrustMark for Extension Builders
| Feature | TradeMatch | TrustMark |
|---|---|---|
| Up to 5 extension builder quotes | Yes | No |
| Escrow on payment | Yes | No |
| Relevant trade qualifications verified | Yes | Partial |
| Verified reviews only | Yes | Mixed |
| Background checks | Yes | No |
| Dispute resolution for extension builder work | Yes | Limited |
Why TradeMatch Wins for Extension Builder Work
- Extension Builder-specific vetting — TradeMatch verifies Relevant trade qualifications and Public liability insurance before any extension builder can quote. TrustMark has lighter checks and relies on ongoing self-attestation.
- Escrow holds your money — Payment for extension builder work sits protected until you confirm the job is done to spec. Critical for extension builder jobs involving small job.
- Five competing quotes — vs a browse-only model on TrustMark — typically saves 5–15% on extension builder jobs.
- No pass-through costs — TradeMatch fees only apply on confirmed work, so there is no marketing overhead baked into your quote.
Typical Extension Builder Jobs & UK Pricing
| Job | Low | Average | High |
|---|---|---|---|
| Small job | £80 | £200 | £400 |
| Medium job | £300 | £700 | £1,500 |
| Large job | £1,000 | £2,500 | £5,000 |
| Consultation/survey | £50 | £100 | £250 |
| Emergency callout | £80 | £150 | £300 |
UK average pricing. London and South East run 20–40% higher. Get an exact quote by posting your extension builder job on TradeMatch.
Best platform for extension builder work in 2026?
For extension builder work, both platforms have merit — but TradeMatch's combination of 5 quotes, escrow, Relevant trade qualifications verification and dispute resolution means fewer surprises. TrustMark's weakness around "Not a quote platform — you cannot compare prices easily" matters more on extension builder work than on cosmetic trades.
Extension Builders on TrustMark vs TradeMatch — FAQ
Is TradeMatch better than TrustMark for finding a extension builder?
For extension builder work specifically, TradeMatch offers escrow-protected payments, up to 5 competing quotes and verified reviews from real completed jobs. TrustMark lacks payment protection, which matters more for extension builder work because jobs often involve Small job where you want recourse if something goes wrong.
How much does a extension builder cost compared to what TrustMark shows?
Average extension builder prices on TradeMatch: £15,000–£50,000. TrustMark pricing tends to be similar to market rates but without the escrow protection. TradeMatch's competitive quote model typically gets you 5–15% lower prices for extension builder work because professionals compete openly.
What qualifications does a extension builder need, and does TrustMark verify them?
A extension builder in the UK should hold Relevant trade qualifications and Public liability insurance. TrustMark has lighter qualification checks than TradeMatch. On TradeMatch every extension builder is background-checked, qualification-verified and insurance-validated before being allowed to accept work.
What happens if a extension builder job goes wrong on TrustMark vs TradeMatch?
On TrustMark, the platform has some mediation but no escrow to hold funds. On TradeMatch, payment sits in escrow until you confirm the work is complete; if there is a dispute, our resolution team mediates and your money stays safe. For extension builder work — where snags like small job are common — this makes a meaningful difference.
How quickly will I get extension builder quotes on TradeMatch vs TrustMark?
Most TradeMatch extension builder jobs receive the first quote within a few hours and 3–5 quotes within 24–48 hours. TrustMark uses a browse-and-contact model, so quote speed depends on how many tradespeople you message. Posting your extension builder job on TradeMatch is free and only takes 2 minutes.
Can I read reviews of extension builders before hiring on TrustMark and TradeMatch?
Both platforms display reviews. Limited review functionality. TrustMark is more about accreditation than consumer reviews. On TradeMatch, every review is verified — only homeowners who have completed a extension builder job through the platform can leave one. No ability to buy or solicit reviews, and every review stays visible (tradespeople cannot delete negative feedback).
Compare TrustMark for Other Trades
Extension Builders on Other UK Platforms
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