House Extension
in Greenock
Compare quotes from vetted Greenock extension builders for single-storey, double-storey and rear extensions. Transparent pricing from £15,000. Free, no-obligation quotes — results in 24 hours.
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How Much Do House Extension Cost in Greenock?
Real prices from completed projects in Greenock 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 →Greenock pricing note: South Scotland (Glasgow, Edinburgh area) prices are broadly in line with or slightly below the English national average. Edinburgh's tight city centre can attract access surcharges; suburban projects are competitively priced. Prices shown are indicative ranges for Greenock and South Scotland. Always get at least 3 written quotes before committing to any builder.
House Extension Specialists Who Know Greenock
Greenock is one of the UK's most active home renovation markets. With a diverse range of properties across the area, from period homes to modern new builds, local builders need to be versatile, skilled, and reliable.
BestBuilders vets every builder in our Greenock 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 are planning a rear extension, a loft conversion, or a full kitchen renovation in Greenock, we will connect you with the right specialist within 24 hours. All quotes are free and there is no obligation to proceed.
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What Greenock Homeowners Say About Our House Extension Specialists
Rear and side extension combined on our 1960s detached in Greenock. Foundations stepped over an existing drain run after a CCTV survey. £104500 for the full spec including extension fit-out. Trial pit done day one to confirm foundation depth was workable.
Compared four extension builders through BestBuilders for the Greenock job. Selected on availability rather than price - we needed to start before winter. Trade plates on the kerb so the council parking team did not bother them. £112600 fully turnkey. EPC went up two bands thanks to the new spec.
Six months later, no settlement cracks anywhere - foundations were clearly done right. Builder we found via BestBuilders in Greenock argued for thicker insulation in the slab - heating bills are visibly lower year-round. Total £85500. Stamp duty saved by extending out rather than moving up.
House Extension in Greenock — FAQs
Plan Your house extension Project in Greenock
Whether you're researching costs, checking planning rules, or comparing approaches before you commit, our editorial team has produced these guides to help Greenock 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 Greenock
We also connect homeowners with vetted house extension specialists in towns surrounding Greenock.
Planning Your House Extension in Greenock
Before you compare quotes, it's worth understanding the full UK price picture for house extension and how Greenock 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 Greenock
Find out whether your house extension needs planning permission in Greenock, 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.