Loft Conversion Services Across the Whole of the UK
From budget-friendly Velux conversions to full mansard transformations — our specialists design and build every project with structural engineers on every job and planning permission handled for you.
FREE NO-OBLIGATION ESTIMATE
Get Your Free Estimate
All Loft Conversion Services
Every service is delivered with full project management, certified structural engineering, and a building regulations completion certificate on handover.
Dormer Loft Conversion
The most popular conversion type in the UK. A box-shaped extension built into the roof slope dramatically increases headroom and usable floor space.
Velux Loft Conversion
The most affordable option — works within your existing roof structure by adding Velux skylights for light and ventilation without changing the roofline.
Hip-to-Gable Conversion
Ideal for semi-detached and detached homes with a hipped roof. Extends the sloping side of the roof out to a vertical gable wall, significantly increasing loft volume.
Mansard Loft Conversion
Maximum space and premium finish for urban properties. A near-vertical rear wall with a flat roof gives you the largest possible floor area.
Loft Bedroom Conversion
A beautifully appointed bedroom in your loft — complete with insulation, flooring, lighting, and a safe, building-regs-compliant staircase.
En-Suite Loft Conversion
A bedroom with a private en-suite bathroom. We handle all structural work, plumbing, waterproofing, and design from start to sign-off.
Planning Permission
We handle all planning applications on your behalf — from permitted development assessments to full planning submissions with councils across the UK.
Structural Calculations
Certified structural engineers on every project. Full beam schedules, loading calculations, and party wall agreement support come as standard.
Compare Conversion Types
Use this table to understand the rough cost, build time, and planning requirements for each conversion type.
| Conversion Type | Rough Cost | Timescale | Space Gain | Planning Required |
|---|---|---|---|---|
| Velux | £15k–£25k | 4–6 weeks | Low–Medium | Usually not required |
| Dormer | £25k–£45k | 6–10 weeks | Medium–High | Usually Permitted Dev. |
| Hip-to-Gable | £30k–£50k | 8–12 weeks | High | Usually Permitted Dev. |
| Mansard | £35k–£60k+ | 10–14 weeks | Very High | Usually full planning |
All costs are estimates based on typical UK projects. Your quote may vary depending on location, property type, and specification.
What Every Service Includes
Whether you're choosing a simple Velux or a full mansard conversion, every project we deliver comes with the same level of professional oversight and documentation.
- Free initial loft survey and feasibility assessment
- Fully itemised, fixed-price quote — no hidden extras
- Permitted development check or full planning application
- Certified structural engineer calculations and beam schedule
- Party wall agreement support where applicable
- Full project management from survey to sign-off
- Building regulations approval and completion certificate
- 10-year workmanship guarantee
Not Sure Which Type is Right for You?
Our surveyors assess your property — roof structure, headroom, budget, and planning constraints — and recommend the best conversion type for your specific home. There's no obligation and no cost.
Survey
We visit and assess your loft
Recommendation
We advise the best type for you
Fixed Quote
Full price within 48 hours
From Our Blog
Ready to Get Started?
Book your free loft survey and we'll assess your property, explain the options, and give you a fully itemised quote — all at no cost and no obligation.