Manchester · House Extension

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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Vetted House Extension Specialists
1,200+ Verified Reviews
Minimum £2m Insurance
Free No-Obligation Quotes
Local Manchester Experts
200+
House Extension Specialists in Manchester
4.8
Average Star Rating
850+
Projects Completed in Manchester
£0
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Manchester House Extension Prices

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.

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Single-storey extension
Rear or Side-Return Extension
£ 25,000 – £50,000

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.

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Double-storey extension
Full Double-Storey Rear Extension
£ 50,000 – £90,000

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.

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Side Extension
Side-Return or Infill Extension
£ 16,500 – £37,500

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.

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Your Project
Get an Accurate Quote

Costs depend on size, spec and access. The best way to know your exact price is to compare 3 quotes from vetted local specialists.

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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.

Why BestBuilders for House Extension in Manchester

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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How It Works

1
Tell us your project
Describe your house extension project and postcode. Takes 60 seconds.
2
We match you instantly
We send your brief to up to 3 vetted house extension specialists in Manchester.
3
Compare and choose
Review quotes, profiles and reviews. No obligation to proceed.

Every Builder We Recommend Is:

✓ Minimum £2m public liability insurance — verified before listing
✓ Holds relevant trade qualifications (FMB, CIOB, FMB, CIOB)
✓ Has a minimum of 5 verified customer reviews before joining
✓ Actively monitored — removed for sustained negative feedback
Customer Reviews

What Manchester Homeowners Say About Our House Extension Specialists

★★★★★ 4.8 / 5
★★★★★

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.

Sarah J.
Chorlton, Manchester
House Extension
★★★★★

Received 3 competitive quotes for our loft conversion in Didsbury. The builder we chose was professional, on time and on budget. Exactly what we needed.

Mike T.
Didsbury, Manchester
House Extension
★★★★☆

Great kitchen renovation in Stockport. The fitter was skilled and tidy. Minor delay due to tile delivery but BestBuilders kept us informed throughout. Very happy.

Laura P.
Stockport, Manchester
House Extension
Frequently Asked Questions

House Extension in Manchester — FAQs

Builder day rates in Manchester typically range from £150–£350 per day depending on the trade, experience and project complexity. A single-storey extension typically costs £25,000–£50,000 in Manchester, slightly below London rates but above rural areas. Get 3 free quotes to compare accurate prices for your specific project.
Many home extensions in Manchester fall under Permitted Development rights, meaning planning permission is not required. However, you will need to apply to Manchester City Council if your property is listed, in a conservation area, or if the extension exceeds permitted development size limits. Our builders can advise on this during your free quote.
Through BestBuilders, you will typically receive your first quotes within 24–48 hours. Most Manchester builders in our network can start projects within 2–8 weeks depending on the time of year and project size. Summer is busier so booking earlier is advisable.
Yes. Every builder in our Manchester network is vetted before joining. We verify public liability insurance (minimum £2m cover), trade qualifications, company registration and a minimum of 5 verified customer reviews. We also remove any builder with a sustained pattern of negative reviews.
Autumn and winter (October–February) is generally the best time to hire builders in Manchester as demand is lower and prices may be more competitive. Spring and summer are peak season, with longer waiting times and less flexibility on price. That said, quality builders in Manchester stay busy year-round.
Nearby Areas

House Extension Near Manchester

We also connect homeowners with vetted house extension specialists in towns surrounding Manchester.

Salford Stockport Bolton Oldham Rochdale Bury Altrincham Ashton-under-Lyne Wigan Warrington Macclesfield Glossop

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