The 10 loft conversions from Google's results for Northampton, ranked on Google rating, online presence and other factors. Updated 10 September 2026.
on GoogleBletchley, Milton Keynes
DJ Moore Lofts designs and installs dormer conversions, handling planning, plumbing, and built-in wardrobe fitting. Recent work includes converting roof spaces into master bedrooms with ensuite bathrooms for homeowners in the surrounding regions.
01234 984076 18 Newton Rd, Bletchley, Milton Keynes MK3 5BT
on GoogleNorthampton
Harborough Lofts carries out attic conversions for residential properties across Market Harborough and Northamptonshire. In addition to transforming roof spaces, the team constructs garage conversions and standalone garden rooms for local homeowners.
on GoogleNorthampton
Swiss Build constructs high-end house extensions and structural home expansions for clients in Northamptonshire. The company manages residential building projects designed to increase living space and modernise traditional layouts.
01604 288123 Unit 7 Stafford Pl, Northampton NN3 6NN
on GoogleHackleton, Northampton
Lux Developments provides loft conversion services for homeowners in Northampton and surrounding areas. The team handles projects of all sizes to create new bedrooms, home offices, or extra living areas.
01604 800585 1 Chapel Ln, Hackleton, Northampton NN7 2AH
on GoogleNorthampton
Roomsa Loft carries out loft conversions and general building work throughout Northamptonshire. Its services cover the entire process from initial design to complete construction, creating additional living space for local homeowners.
on GoogleNorthampton
Ac Lofts constructs loft conversions and home extensions across the Northampton area. Work includes various styles such as dormer, hip to gable, truss, and Velux installations to create functional home additions.
01604 492581 19 York Rd, Northampton NN1 5QG
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 GoogleNorthampton
Libertydesign and Build carries out loft conversions, dormer extensions, and single-storey extensions in Northamptonshire. Beyond loft work, the company also provides EPDM flat roofing, carpentry, guttering, and general home refurbishments.
Northampton
NK Lofts carries out loft, attic and dormer conversions, along with garage conversions, in Coventry, Northampton, Peterborough and nearby parts of Northamptonshire. Roof spaces are turned into habitable rooms or fitted out for storage.
Northampton
Loft Conversion Northampton builds Velux, Mansard, and Dormer loft conversions across Northamptonshire and nearby areas. Its regional coverage extends to locations such as Daventry, Kettering, Wellingborough, Rushden, Towcester, and Rugby.
In Northampton, velux / rooflight typically costs £25,000 – £34,500. Labour in Northamptonshire runs 1% below 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 northampton". They are ranked on Google rating, online presence and other factors.
The figures above are Northampton 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.