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Builders in Southampton

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

Small structural job
£1,600 – £5,500knock-through, lintel
Renovation, per room
£5,500 – £16,000strip back and rebuild
Full house renovation
£63,000 – £157,5003 bed, to a good standard
Southampton vs UK
+5%above the UK median

Number 1: Precision Builders South Ltd

5.0(28)out of 5, from 28 reviewson GoogleSouthampton

Precision Builders South Ltd handles property extensions, conversions, and refurbishments in Southampton, Chandler's Ford, and nearby areas. The team works with homeowners, main contractors, and property developers on general building projects.

07771 605643

Number 2: Georgehenry Builders

5.0(10)out of 5, from 10 reviewson GoogleShirley, Southampton

Based in Shirley, Georgehenry Builders completes new builds, house extensions, and full property refurbishments across Hampshire. The firm manages projects through every stage, handling everything from initial planning to building control sign-off.

07909 333814 8 Cedar Ave, Shirley, Southampton SO15 5GW

Number 3: Mjh Builders

4.9(54)out of 5, from 54 reviewson GoogleEastleigh

MJH Builders delivers general construction services in Eastleigh and the surrounding areas. Its scope of work includes loft conversions, home extensions, kitchen and bathroom installations, structural repairs, and commercial building projects.

07891 638636 66 Underwood Rd, Eastleigh SO50 6FW

Number 4: Tw Builders

5.0(7)out of 5, from 7 reviewson GoogleSouthampton

TW Builders constructs new builds, extensions, loft conversions, and garden rooms throughout Southampton and Winchester. Its team also provides property maintenance, hard landscaping, driveways, and patio installations.

07770 395026 81 Millais Rd, Southampton SO19 2FX

Number 5: Southampton Builders Merchant

4.6(93)out of 5, from 93 reviewson GoogleSouthampton

Southampton Builders Merchant operates as a trade counter and timber yard based in Millbank Wharf. The site supplies building materials, bricks, and timber to both trade tradespeople and the public across the region.

023 8063 3833 Millbank St, Southampton SO14 5AG

Number 6: Watkins Builders

4.2(5)out of 5, from 5 reviewson GoogleSouthampton

Rob Watkins provides building contractor services throughout Southampton, covering house extensions, loft conversions, and new build projects. The team handles full architectural planning, design, and project management for residential renovations.

0800 012 1089

Number 7: Dc Builders Ltd

4.4(20)out of 5, from 20 reviewson GoogleTotton, Southampton

DC Builders Ltd completes home extensions, property conversions, and general building projects across Hampshire. Operating from Totton, the firm also handles kitchen and bathroom installations for domestic properties.

023 8036 6963 146 Salisbury Rd, Totton, Southampton SO40 3LQ

Number 8: Local Builders & House Extensions

No Google reviews yetSholing, Southampton

House extensions, loft conversions, and garage conversions are carried out by Local Builders & House Extensions in Southampton. The team also undertakes basement excavations, new house builds, and structural repairs.

023 8065 8677 84 Sullivan Rd, Sholing, Southampton SO19 0JL

Number 9: Redoak Builders

No Google reviews yetBursledon, Southampton

Redoak Builders delivers residential construction services across Bursledon, Southampton, and the wider Hampshire area. The business manages house extensions, home refurbishments, kitchens, and garden construction projects from initial plans through to completion.

07717 750829 Fox Fields, Dodwell Ln, Bursledon, Southampton SO31 1AD

Number 10: Figgins Construction

No Google reviews yetSouthampton

Figgins Construction provides general building and property development services in Southampton and surrounding areas. The company handles residential construction projects and refurbishments for local homeowners.

What builders charge in Southampton

In Southampton, small structural job typically costs £1,600 – £5,500. Labour in Hampshire runs 5% 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 "builders southampton". They are ranked on Google rating, online presence and other factors.

Work out the budget first

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

Builders in Southampton: common questions

Should I use a JCT contract for domestic work?

For anything over about £10,000, yes. The JCT Home Owner contract is short, plain English and free to buy. It fixes the payment schedule and the process if things go wrong, which is exactly what an informal arrangement does not.

How much deposit should a builder ask for?

Materials up front is reasonable. A large percentage of the total is not. Stage payments against completed work are the norm, and a firm insisting on 50% before starting is a warning sign.