Loft Conversion West London
A loft conversion is one of the most cost-effective ways to add space and value to your home — often 20–25% to the property value. We deliver complete loft conversions across West London on a fixed-fee basis, covering everything from structural engineering through to decorating, so you get a finished room without the stress.
🏠 Dormer, hip-to-gable, mansard, and Velux conversions across Ealing, Chiswick, Acton, Hammersmith, and all West London postcodes. We manage planning, building control, and party wall matters on your behalf.
What’s Included
- Design & planning — architectural drawings, structural calculations, planning application or lawful development certificate, party wall notices
- Structural works — steel beams, new floor joists, dormer construction, roof alterations, staircase installation
- Insulation & boarding — full thermal upgrade to current Building Regulations, plasterboard and skim finish
- Electrics & plumbing — new circuits, LED lighting, radiator or underfloor heating, en-suite bathroom pipework if included
- Windows & rooflights — dormer windows, Velux or Fakro rooflights, fire-escape compliant where required
- En-suite option — full bathroom or shower room installation to the new loft space
- Finishing — joinery (doors, skirting, architraves), decorating, flooring
- Sign-off — building control completion certificate and any warranty documentation
Frequently Asked Questions
Do I need planning permission for a loft conversion?
Most loft conversions fall under permitted development, meaning you don’t need full planning permission — just a lawful development certificate. Dormers on the front elevation, properties in conservation areas, and flats will typically need planning. We’ll assess this at the survey stage and handle all applications.
How long does a loft conversion take?
A standard dormer or Velux conversion takes 8–12 weeks on site. The planning and design stage adds approximately 8–10 weeks before work starts. We’ll give you a full programme covering both phases.
Will I need a party wall agreement?
Usually yes, because loft conversions involve work on or near the shared wall with your neighbour. We handle party wall notices as part of our service, including serving notices and liaising with your neighbour’s surveyor if needed.
Can you include an en-suite bathroom?
Absolutely. Adding an en-suite is one of the most popular loft conversion upgrades. Our team handles all plumbing and drainage — we’ll connect to the existing soil stack or install a macerator if needed. We’ll advise on the best layout for your space.
Ready to Get Started?
Call us today for a free, no-obligation consultation and quote.