The 10 loft conversions from Google's results for St Albans, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleSt Albans
St Albans Builders carries out construction projects for homeowners across the local community. The company handles home extensions, loft conversions, and general building work in and around St Albans.
01727 637183 Arquen House, 4-6 Spicer St, St Albans AL3 4PQ
on GoogleBarnet
The Loft Converter builds attic conversions, house extensions, and home refurbishments across London, Essex, and Hertfordshire. The business works on residential properties to create additional bedrooms, bathrooms, and living areas.
020 8361 7458 153 High St, Barnet EN5 5SU
on 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
on GooglePorters Wood, St Albans
Eagle Design and Build provides residential construction services across St Albans. Its work spans architectural design through to building completion, including loft conversions, house extensions, and interior refurbishments.
01727 743829 Long Spring, Porters Wood, St Albans AL3 6EN
on GooglePopes Dr, London
LCCL Construction is a design and build company converting lofts, extending houses and renovating homes across East London. It works in areas such as Hackney, Walthamstow, Leyton and Bow, where much of the housing is Victorian terraces, and provides architectural design as part of its service.
020 8037 7332 3rd Floor, Hathaway House, Popes Dr, London N3 1QF
on GoogleSt Albans
Built IQ delivers loft conversions and home extensions across St Albans and Barnet. The team manages project planning, design, and construction to convert unused attic space into residential rooms or practical storage areas.
on 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
on GoogleSt Albans
Marken Lofts specialises in loft conversions and home extensions across the Enfield area. The company constructs new bedrooms, lounges, and home offices, taking projects from initial architectural design through to final build.
on GoogleAbridge, Romford
Absolute Lofts provides loft conversion services in Abridge, Romford.
0800 243 048 Patch Park Farm, 158 Ongar Rd, Abridge, Romford RM4 1AA
on GoogleAshton-in-Makerfield, Wigan
Econoloft carries out loft conversions for residential properties located across Ealing. The business transforms unused attic spaces into functional living areas such as extra bedrooms, home offices, or playrooms for local homeowners.
0800 269 765 Redgate Road South Lancashire Industrial Estate, Unit 5 Kingfisher Ct, Ashton-in-Makerfield, Wigan WN4 8DY
In St Albans, velux / rooflight typically costs £29,000 – £40,500. Labour in Hertfordshire runs 16% above the UK median, which accounts for most of the difference from the same job elsewhere.
These are the firms from Google's results for "loft conversion st albans". They are ranked on Google rating, online presence and other factors.
The figures above are St Albans ranges. These explain what drives them, so you can read a quote properly.
Loft conversion prices by type for 2026, including VAT, with London figures, the fees and extras a builder's quote leaves out, and when planning permission applies.
When a loft conversion needs planning permission in England, the 40 and 50 cubic metre limits for dormers, what a certificate costs, and the rules in Wales, Scotland and Northern Ireland.
What a dormer loft conversion costs in 2026, the dormer types, whether your loft has the height, the planning and building regulations rules in each nation, and how long it takes.
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.
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.