House Extension
in Manchester
Compare quotes from vetted Manchester extension builders for single-storey, double-storey and rear extensions. Transparent pricing from £16,500. Free, no-obligation quotes — results in 24 hours.
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How Much Do House Extension Cost in Manchester?
Real prices from completed projects in Manchester and the surrounding area. Costs vary by size, specification and access — use these as a starting guide, then get 3 free quotes for your specific project.
The most popular choice for UK terraces and semis. Adds a kitchen-diner or extra living space at ground level. Typically 3–5m deep, completed in 10–14 weeks.
Get quotes for this →Maximum space gain in a single build — adds a ground-floor room and a bedroom above. Strong ROI in most UK property markets. Requires full planning permission.
Get quotes for this →Ideal for terraced homes with a narrow side alley. Transforms a cramped kitchen into a full-width open-plan space. Often combined with a rear extension.
Get quotes for this →Costs depend on size, spec and access. The best way to know your exact price is to compare 3 quotes from vetted local specialists.
Get free quotes →Manchester pricing note: North West England (Manchester, Liverpool, Lancashire) prices sit around 5% below the national average. Strong contractor availability keeps competition healthy and quotes competitive, particularly outside peak summer season. Prices shown are indicative ranges for Manchester and North West. Always get at least 3 written quotes before committing to any builder.
House Extension Specialists Who Know Manchester
Manchester is one of the UK's most active home renovation markets. With a diverse housing stock from Victorian terraces in Didsbury to modern flats in Salford Quays, the city's builders need to be versatile, skilled, and reliable.
BestBuilders vets every builder in our Manchester network. We check for public liability insurance, relevant trade qualifications (CIOB, FMB, Gas Safe, NICEIC), and a minimum of five verified customer reviews before any builder can appear on our platform.
Whether you're planning a rear extension in Chorlton, a loft conversion in Stockport, or a full kitchen renovation in Didsbury, we'll connect you with the right specialist within 24 hours.
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What Manchester Homeowners Say About Our House Extension Specialists
Found an excellent builder for our rear extension in Chorlton within 48 hours. The whole process from quote to completion was seamless. Would absolutely recommend.
Compared four extension builders through BestBuilders for the Manchester job. Chose on the strength of seeing a finished extension in the next street. Architect drawings submitted by them, planning consent in 8 weeks. Came to £67860 all-in, including bi-folds and lantern. Lived in throughout - dust kept to the construction zone, never the rest of the house.
Two years on, the lantern roof is still pristine - no water staining at all. Builder we found via BestBuilders in Manchester recommended a roof lantern over a flat roof - genuinely transforms the light. Total £57360. Estate agent valued the work at +£90k.
House Extension in Manchester — FAQs
Plan Your house extension Project in Manchester
Whether you're researching costs, checking planning rules, or comparing approaches before you commit, our editorial team has produced these guides to help Manchester homeowners make informed decisions about their house extension project.
House Extension Cost Guide
Detailed UK price ranges, regional adjustments and worked examples for house extension projects.
Read House Extension Cost Guide →All House Extension Specialists
Browse our nationwide network of vetted house extension contractors covering all 519 UK towns.
Browse House Extension Specialists →All Cost Guides
Compare prices across extensions, lofts, kitchens, bathrooms, roofing, driveways and solar projects.
View All Cost Guides →Planning your house extension project? Read these guides:
House Extension Near Manchester
We also connect homeowners with vetted house extension specialists in towns surrounding Manchester.
Planning Your House Extension in Manchester
Before you compare quotes, it's worth understanding the full UK price picture for house extension and how Manchester sits within it. The guides below cover average costs, what affects your quote, and how to choose a builder you can trust.
UK House Extension Cost Guide
Full price ranges, worked examples and the factors that move your quote — drawn from real project data across 519 UK towns.
Read the house extension cost guide →House Extension Across the UK
Browse house extension services nationwide, see what's typical in your region, and request quotes from any UK location.
Visit the UK house extension hub →Planning Permission for House Extension in Manchester
Find out whether your house extension needs planning permission in Manchester, what Permitted Development limits apply, and how rules differ in conservation areas, Article 4 zones, and listed-building settings.
Read the house extension planning rules →More homeowner resources: all UK building guides, cost guides, planning permission, comparisons, how-to guides and industry insights.