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Extension builders in Edinburgh

The 10 extension builders from Google's results for Edinburgh, ranked on Google rating, online presence and other factors. Updated 10 September 2026.

Single storey, per m²
£1,800 – £2,600shell to finished
Typical single storey
£41,000 – £56,000around 20 m²
Double storey
£56,000 – £92,000around 30 m² over two floors
Edinburgh vs UK
+2%around the UK median

Scotland issues building warrants rather than building regulations approval, and permitted development rights differ from England.

Number 1: House Extensions Edinburgh

4.9(152)out of 5, from 152 reviewson GooglePentland Industrial Estate, Edinburgh

Bryant & Cairns designs and installs house extensions across Edinburgh and the Lothians using pre-fabricated solid and hybrid roofing systems integrated with double glazing. The builder constructs custom single-storey spaces designed to streamline structural installation on local homes.

0131 440 2855 2-3, Borthwick View, Pentland Industrial Estate, Edinburgh EH20 9QH

Number 2: Platinum Works

5.0(10)out of 5, from 10 reviewson GoogleEdinburgh

Platinum Works builds open-plan extensions and kitchen extensions for properties in Edinburgh, Fife, and the Lothians. The company delivers fully managed construction services, taking projects from initial planning stages right through to final structural completion.

07964 461273 9 Ainslie Pl, Edinburgh EH3 6AT

Number 3: Edinburgh House Extension Costs

5.0(6)out of 5, from 6 reviewson GoogleEdinburgh

MDA Studio assists Edinburgh homeowners with single-storey rear extensions across areas including Morningside, Grange, Colinton, Trinity, and Barnton. The architectural studio offers cost planning and layout guidance to help clients prepare single-storey extension builds.

07968 851608 26 Bridge Rd, Edinburgh EH13 0LQ

Number 4: Mysweet Homes

4.8(20)out of 5, from 20 reviewson GoogleEdinburgh

Sweet Homes acts as a main contractor for house extensions in Edinburgh, handling key structural works such as steel installation and wall openings. The team coordinates heating, flooring, and interior finish integration to connect new builds with existing properties.

0131 210 0066

Number 5: House Extensions Edinburgh

5.0(1)out of 5, from 1 reviewson GooglePeffermill Rd, Edinburgh

Creative Homes plans, designs, and constructs house and kitchen extensions for properties across Edinburgh, Fife, and Central Scotland. By managing every stage in-house, the company handles design work and scheduled building trades directly.

0131 563 1631 Block 7 Unit 2, 1 King's Haugh, Peffermill Rd, Edinburgh EH16 5UY

Number 6: Pro Build co Ntracts Ltd

4.7(287)out of 5, from 287 reviewson GoogleEdinburgh

Probuild Contracts provides plastering around Edinburgh and its surrounding areas, taking on small jobs as well as larger ones. The company is also listed for roofing, general building, extensions, loft conversions and damp proofing.

0131 235 1048 30-32 bridge street, Edinburgh EH13 0LQ

Number 7: Brunstane Group

4.5(17)out of 5, from 17 reviewson GoogleMillhill Ln, Musselburgh

The Brunstane Group delivers house extension builds across Edinburgh and the Lothians. Bringing together technical planning, architectural design, and trade management, the team coordinates single-contract extension projects from initial concept through to final build.

0131 510 9390 Millhill Stables, Millhill Ln, Musselburgh EH21 7RD

Number 8: Ek co

3.8(23)out of 5, from 23 reviewson GoogleEdinburgh

Ek Co operates a bathroom and kitchen showroom near Edinburgh, offering baths, showers, suites, tiles, wet rooms, and bifolding doors. Tradespeople supply and fit completed bathroom installations, kitchen projects, and home extension builds.

0131 343 6007

Number 9: House Extension

No Google reviews yetRiverside Dr, Aberdeen

Ian McGregor Architects delivers architectural feasibility studies and structural planning for loft conversions and house extensions in Aberdeen. The practice creates compliant stair access layouts and space plans to add bedrooms and shower rooms to period properties.

01224 630163 Neospace, Riverside Dr, Aberdeen AB11 7LH

Number 10: House Extensions In Edinburgh

No Google reviews yetEdinburgh

House Extensions In Edinburgh provides extension building services in Edinburgh.

What extension builders charge in Edinburgh

In Edinburgh, single storey, per m² typically costs £1,800 – £2,600. Labour in City of Edinburgh runs 2% above the UK median, which accounts for most of the difference from the same job elsewhere.

How to choose between them

  • Check the registration yourself. Trade body memberships are public, and each body's own register confirms them in a minute.
  • Get three quotes on the same specification. Written down, split into labour, materials and anything structural. Most people compare a total against a total and end up choosing between two different jobs.
  • Ask what is not included. Making good, waste removal, scaffolding and VAT are the four that turn a cheap quote into an average one.
  • Never pay a large deposit up front. Materials in advance is normal. Half the total before anyone turns up is not.

How this list is ordered

These are the firms from Google's results for "house extensions edinburgh". They are ranked on Google rating, online presence and other factors.

Work out the budget first

The figures above are Edinburgh ranges. These explain what drives them, so you can read a quote properly.

Extension builders in Edinburgh: common questions

How far can I extend without planning permission?

Under permitted development, three metres for a terrace or semi and four for a detached, doubled to six and eight under the prior approval process. Height, materials and how much garden you cover all carry separate limits, and none of it applies in a conservation area.

Do I need a party wall agreement?

If you are excavating within three metres of a neighbour's foundations or building on the boundary, yes. You must serve notice two months before work starts. Skipping it is the most common reason extension projects stall.