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Loft conversions in Bromley

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

Velux / rooflight
£29,000 – £40,500no roof structure change
Dormer
£46,500 – £69,500the most common UK conversion
Hip to gable
£52,000 – £81,000semi and end terrace
Bromley vs UK
+16%well above the UK median

Number 1: Cs Lofts

5.0(124)out of 5, from 124 reviewson GoogleBeckenham

CS Lofts, based in Beckenham, converts lofts in Croydon, Selsdon, Sanderstead, Addington, New Addington and Hamsey Green. It builds Velux, hip-to-gable, mansard and dormer conversions, adding home offices, en suite bathrooms and extra bedrooms to houses without the owners having to move.

020 3659 8980 Erindale Court, 15 Copers Cope Rd, Beckenham BR3 1NE

Number 2: Biggerliving Lofts

5.0(102)out of 5, from 102 reviewson GoogleLeybourne, West Malling

Bigger Living Lofts carries out loft conversions and offers guidance on local planning permission and permitted development rules. The firm operates across Bromley, assisting homeowners in expanding their existing residential spaces.

01732 523199 3 Rectory Ln S, Leybourne, West Malling ME19 5HA

Number 3: Lofts of Bromley

5.0(51)out of 5, from 51 reviewson GoogleOrpington

Lofts of Bromley carries out attic conversions across Orpington and the wider Bromley area. The firm manages every stage of the build to help homeowners create additional rooms within their properties.

0800 699 0024 1 Ryarsh Cres, Orpington BR6 9SG

Number 4: Bromley Lofts

5.0(22)out of 5, from 22 reviewson GoogleBromley

Bromley Lofts designs and constructs loft conversions and property extensions for homeowners in and around Bromley. The business offers initial estimates and manages full structural conversions from start to finish.

07508 029769

Number 5: Abbey Lofts

4.9(117)out of 5, from 117 reviewson GooglePotters Bar

Abbey Lofts completes attic conversions and extensions across East London, handling dormer, mansard, hip-to-gable, and Velux projects. Its services also encompass wrap-around and rear home extensions for various property styles, from terraced houses to bungalows.

020 3581 0354 1 Whaley Rd, Potters Bar EN6 2RA

Number 6: Co Nsolidated Roofing

4.9(62)out of 5, from 62 reviewson GoogleBromley

Co Nsolidated Roofing works on flat roof installations, urgent roof repairs, and loft conversions for clients in Bromley and East London. Its team operates seven days a week to handle residential and commercial property requirements.

0800 052 0075 21 Bradford Cl, Bromley BR2 8NR

Number 7: Smiths of Bromley

4.8(78)out of 5, from 78 reviewson GoogleBromley

Smiths of Bromley constructs home extensions and loft conversions across Bromley. Its projects range from small kitchen extensions through to large two-storey additions for residential properties.

020 8466 1582 House 2, Newman Flexible Workspace Commercial, 2a Newman Rd, Bromley BR1 1RJ

Number 8: Touchstone Lofts

4.8(76)out of 5, from 76 reviewson GoogleChiswick, London

Touchstone Lofts provides attic transformations and home extensions, covering everything from architectural design and planning to building work. Its projects include dormer, mansard, hip-to-gable, and rooflight conversions for various house types, as well as structural engineering services.

020 7870 1117 2 Watchfield Ct., Sutton Ct Rd, Chiswick, London W4 4NA

Number 9: Simply Loft

4.6(256)out of 5, from 256 reviewson GoogleBromley

Simply Loft carries out home extensions and attic conversions for properties across West London, including Richmond, Acton, and Chiswick. The team manages the full process from initial consultation to structural completion to expand living space.

0800 917 7571

Number 10: Absolute Lofts

4.5(97)out of 5, from 97 reviewson GoogleAbridge, Romford

Absolute Lofts provides loft conversion services in Abridge, Romford.

0800 243 048 Patch Park Farm, 158 Ongar Rd, Abridge, Romford RM4 1AA

What loft conversions charge in Bromley

In Bromley, velux / rooflight typically costs £29,000 – £40,500. Labour in Greater London runs 16% 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 "loft conversion bromley". They are ranked on Google rating, online presence and other factors.

Work out the budget first

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

Loft conversions in Bromley: 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.