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Garage Conversions in Surrey

Garage Conversions across Surrey by GNT Construction — convert an underused garage into a usable room without extending your footprint. Serving Tadworth, Kingswood, Banstead, Reigate, Cheam, Sutton, Ewell, Redhill & Merstham. Free estimates.

GNT Construction is a family-run building company based in Cheam, helping homeowners across Surrey convert an underused garage into a usable room without extending your footprint. From your first idea to the final finish, one experienced team looks after your whole project.

What our garage conversions service includes

  • Single & double garage conversions
  • Home offices, playrooms & gyms
  • Extra bedrooms & annexes
  • Insulation, damp proofing & flooring
  • New windows, doors & rendering
  • Electrics, heating & plastering

Why choose GNT Construction?

We are an established, fully insured family business with a reputation built on quality workmanship and straight-talking service. You deal with the same trusted team throughout, we keep the site tidy and respect your home, and every project starts with a clear, itemised written estimate so there are no surprises.

Whether you are planning garage conversions or a wider project, we manage design, planning, building control and construction under one roof — making the whole process simpler for you. We work across Surrey and into Sussex from our base in Cheam.

Garage Conversions: common questions

Do I need planning permission for a garage conversion?

Most garage conversions are permitted development, but we check for you and handle any building regulations that apply.

How long does a garage conversion take?

A typical single garage conversion takes around 3–5 weeks. We confirm timescales in your free estimate.

Planning garage conversions in Surrey?

Get a free, no-obligation estimate from GNT Construction — family-run builders in Cheam.

Get your free estimate   Call 0208 646 3167