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Find trusted extension builder professionals for double storey extension in Banbury, Oxfordshire. Compare free quotes from vetted, insured professionals in the OX postcode area.
Average cost: £30,000–£80,000· 224+ reviews · Escrow-protected payments
Post your job in 2 minutes and receive up to 5 quotes from vetted extension builder professionals in Banbury.
Post a Job for FreeTwo storey extension with planning application, structural design and full build. Whether you need double storey extension for your home or commercial property in Banbury, TradeMatch connects you with qualified professionals who have been background-checked and carry verified public liability insurance.
Banbury homeowners typically pay £30,000–£80,000 for double storey extension, though costs vary based on the scope of work, materials required, and access to the property. Post your job with details and receive accurate, personalised quotes from up to 5 local extension builder professionals.
| 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 |
Prices are UK averages for 2026 and may differ in Banbury. Get an accurate quote by posting your job on TradeMatch.
Tell us about your double storey extension project in Banbury. Include details about scope, materials and timing.
Get up to 5 free quotes from vetted extension builder professionals in the OX area.
Read reviews from Banbury homeowners, compare prices and hire with escrow-protected payments.

Double Storey Extension in Banbury typically costs £34,500–£92,000. Prices in Banbury, Oxfordshire vary based on the scope of work, materials, and access. Post your job free on TradeMatch to get personalised quotes from local extension builder professionals in the OX postcode area.
TradeMatch UK has vetted extension builder professionals in Banbury who specialise in double storey extension. Every tradesperson is background-checked, holds verified insurance, and is reviewed by real homeowners. Post your job and compare up to 5 quotes. All payments are escrow-protected.
A qualified extension builder for double storey extension should hold: Relevant trade qualifications, Public liability insurance. The relevant regulatory body is Relevant trade association. TradeMatch verifies credentials before any professional can quote on double storey extension jobs in Banbury.
The duration depends on the scope of your double storey extension project. Most extension builder professionals in Banbury will provide a timeline with their quote. Post your job on TradeMatch with full details and you'll receive estimates including timescales from professionals in the OX area.
Yes. All quotes for double storey extension in Banbury on TradeMatch are completely free with no obligation. You only pay when you choose to hire, and payments are escrow-protected — funds are released only when you confirm the work is complete.
A reputable extension builder should offer a written guarantee of at least 12 months on labour for double storey extension. For larger projects, look for guarantees backed by Relevant trade association or an insurance-backed warranty. On TradeMatch, all Banbury professionals are vetted and payments are escrow-protected.
We recommend at least 3 quotes to ensure a fair price. TradeMatch lets you compare up to 5 free quotes from vetted extension builder professionals in Banbury. Don't automatically choose the cheapest — weigh reviews, qualifications and the detail in each quote.
A good quote for double storey extension in Banbury should include: itemised labour and materials costs, start and completion dates, payment terms, VAT status, and any exclusions. On TradeMatch you can compare detailed quotes side by side from multiple vetted professionals in the OX area.
Many extension builder professionals in Banbury work weekends, though they may charge 10–30% more for Saturday work and up to 50% extra on Sundays. On TradeMatch, specify your preferred dates when posting and local tradespeople who are available will quote accordingly.
While minor tasks may be suitable for DIY, double storey extension typically requires professional expertise and proper certification. Incorrect work can create safety hazards, void insurance, and cost more to fix. Hiring a vetted extension builder through TradeMatch ensures the work meets building regulations and is covered by guarantee.
Post your job free and compare quotes from vetted extension builder professionals in the OX area.
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