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Loft conversions in Derby

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

Velux / rooflight
£23,000 – £32,000no roof structure change
Dormer
£37,000 – £55,000the most common UK conversion
Hip to gable
£41,500 – £64,500semi and end terrace
Derby vs UK
-8%below the UK median

Number 1: Top Mark Conversions

5.0(31)out of 5, from 31 reviewson GoogleIlkeston

Top Mark Conversions designs and installs shell and dormer loft conversions across Nottinghamshire and Derbyshire. The company manages projects from the initial design consultation through to final structural completion.

07925 891170 131 Norman St, Ilkeston DE7 8NR

Number 2: Truss Developments

5.0(2)out of 5, from 2 reviewson GoogleNottingham

Truss Developments provides loft conversion services to residential properties in Nottingham.

0115 891 3783 48 Wollaton Rd, Nottingham NG9 2NR

Number 3: Xl Lofts

4.4(7)out of 5, from 7 reviewson GoogleLoscoe, Heanor

XL Lofts constructs attic conversions for bungalows, terraced, detached, and semi-detached properties in Nottingham and Derby. The firm converts roof areas into extra bedrooms, home offices, and quiet spaces.

07974 463142 Denby House Brooklands Business Centre, Taylor Ln, Loscoe, Heanor DE75 7AB

Number 4: Derby Shire Specialists Group

4.3(12)out of 5, from 12 reviewson GoogleDerby

Derby Shire Specialists Group delivers Velux, dormer, hip-to-gable, and bungalow attic conversions across Derbyshire and Derby. The business manages build projects directly to create extra living areas for residential properties.

01332 215256

Number 5: Loft Conversions

4.2(25)out of 5, from 25 reviewson GoogleCannock

Buckley Loft Conversions builds loft conversions for houses in Derby and manages each project itself. The service covers design, development and construction, turning roof space into rooms arranged around how the household lives.

0800 136 152 Unit 7, 50 Park St, Cannock WS11 0BT

Number 6: Rv Construction

No Google reviews yetAshbourne Rd, Belper

Rv Construction is a loft conversion specialist operating in Belper.

07930 430106 Crossroads Farm, Ashbourne Rd, Belper DE56 2DA

Number 7: Conversion Company

No Google reviews yetDerby

Conversion Company converts lofts and garages into bedrooms, offices, studies, and playrooms across Derby and Nottingham. The business also fits custom kitchens and manages structural updates to expand living spaces.

Number 8: Roof Rooms

No Google reviews yetGiltbrook, Nottingham

Roof Rooms converts roof spaces into extra living areas for residential properties throughout Derbyshire and Nottinghamshire. The business manages loft conversion projects from initial planning to final finishing work.

0115 877 1151 3 Duke Cres, Giltbrook, Nottingham NG16 2FY

Number 9: Loft Conversion Architects in Derby

No Google reviews yetDerby

Loft Conversion Architects in Derby produces architectural designs and planning applications for house extensions and loft conversions. The firm creates plans for properties ranging from period terraces to modern houses.

Number 10: Derby House Extensions

No Google reviews yetDerby

Derby House Extensions undertakes building and roofing projects across the Derby area. Its work includes rear, side return, wrap-around, two-storey, and kitchen extensions, as well as loft and garage conversions. The business also provides pitched and flat roofing services, including fibreglass and felt options.

What loft conversions charge in Derby

In Derby, velux / rooflight typically costs £23,000 – £32,000. Labour in Derbyshire runs 8% below 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 "loft conversion derby". They are ranked on Google rating, online presence and other factors.

Work out the budget first

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

Loft conversions in Derby: common questions

Do I need planning permission for a loft conversion?

Usually not. Most fall under permitted development if you stay within 40 cubic metres for a terrace or 50 for a semi or detached, do not go above the existing roof ridge, and use materials in keeping. Mansards and anything on a flat or in a conservation area normally do need permission.

How long does a loft conversion take?

Six to eight weeks for a dormer once work starts, plus four to eight weeks beforehand for drawings, structural calculations and building control. Scaffolding usually goes up a week ahead.