Completed modern loft conversion with skylights and timber flooring
Serving London, Croydon & Kent

Loft Conversions London

Turn unused roof space into bright bedrooms, master suites, and functional home offices with our trusted team of builders and carpenters.

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Bespoke design & build

Tailored dormer, mansard, and Velux conversions.

Full project management

From architectural drawings to final decorating.

10-year guarantee

Built to stringent London building regulations.

Loft conversion specialists

Turn your attic into your favourite room.

Expand upward with Prestige Complete Construction. We design and build tailored loft conversions across South East London, Kent, and Surrey that add genuine living space and enduring home equity.

Valuable extra space
Transform unused roof space into an en-suite master bedroom, quiet home office, or kids playroom tailored to your family's routine.
Up to 30% more floor area
Increased property value
A professionally built loft conversion typically adds between 15% and 20% to the overall market value of your South East London property.
High return on investment
Energy-efficient living
Upgraded roof insulation and modern double or triple-glazed rooflights keep warmth in during winter and cut annual heating bills.
Better EPC performance
Zero moving disruption
Skip stamp duty, estate agent fees, and the hassle of relocating schools. Expand your footprint right where you already love living.
No moving fees or packing

Built on trust, workmanship, and doing things properly.

From initial feasibility surveys and party wall agreements through to structural steelwork, rooflights, and bespoke joinery, our in-house trade teams manage every detail.

Full planning, drawings & building control sign-off
Dedicated on-site project management from day one
Bespoke dormer, mansard, velux, or hip-to-gable builds
10-year structural warranty on all workmanship
Book a free loft surveyView completed lofts
Complete construction capabilities

Structural craftsmanship, certified to modern standards

Every building project requires precise engineering, verified compliance, and dependable trade execution. We manage all technical aspects under one clear agreement.

Structural engineering & steel calculations
Load-bearing assessments, RSJ beam sizing, and architectural coordination to ensure rock-solid stability.
  • Building control ready calculations
  • Steel beam sizing & padstones
  • Chimney breast & wall removal support
Building regulations & compliance
Full compliance management with local council inspectors and approved private building control officers.
  • Fire safety & escape route compliance
  • Drainage & thermal insulation specs
  • Final completion certification
Thermal & acoustic insulation
Modern multi-layer insulation systems exceeding standard Part L building regulations for comfort and efficiency.
  • Rigid PIR & acoustic mineral wool
  • Vapour control membranes
  • Soundproofing between living zones
Loft conversions & house extensions
Rear dormers, hip-to-gable conversions, and single/double-storey extensions built from ground to roof.
  • Custom dormer framing & weatherproofing
  • Skylight & bi-fold structural openings
  • Integrated plumbing & electrical rough-ins
Bespoke carpentry & architectural joinery
Made-to-measure staircases, bespoke fitted wardrobes, custom alcoves, and premium hardwood trims.
  • Precision timber frame construction
  • Custom loft staircases to match existing
  • Solid hardwood door hanging & architraves
Complete property renovations
Turnkey refurbishments covering layout reconfigurations, luxury bathrooms, kitchens, and modern finishes.
  • Full subfloor and joist levelling
  • Underfloor heating integration
  • Plastering and smooth decorative finish
Transparent project workflow

From first consultation to final certificate

A structured five-phase programme keeping your timeline, budget, and building compliance strictly on track.

01Week 1

Consultation & site feasibility

We visit your property, evaluate your structural feasibility, review your ideas, and outline initial budget parameters.

Key Deliverable

Initial project brief & estimate

02Weeks 2 – 4

Design, structural & approvals

Architectural drawings and structural calculations are finalised, then submitted to building control or planning if required.

Key Deliverable

Full technical specification

03Week 5

Pre-construction & scheduling

Materials are ordered, trades scheduled, site protection established, and a dedicated project manager assigned.

Key Deliverable

Itemised build schedule

04Weeks 6 – 16

Main build & regulatory sign-offs

Demolition, structural steel, framing, first-fix M&E, insulation, and progressive building control inspections.

Key Deliverable

Weekly milestone updates

05Final 2 Weeks

Second-fix, snagging & handover

Finishes, bespoke carpentry, testing, deep clean, final building control sign-off, and insurance-backed warranties.

Key Deliverable

Building control completion certificate

Service coverage

Serving South East, South West, West, East London & Kent

We operate across Greater London and surrounding borders, managing site logistics, parking permits, and borough-specific planning constraints.

Fully insured with public and structural liability cover
Dedicated site management and tidy work practices

South East London

Dulwich, Greenwich, Blackheath, Bromley, Lewisham, Peckham, Forest Hill

South West London

Wandsworth, Clapham, Battersea, Putney, Wimbledon, Richmond, Kingston

West & Central London

Ealing, Chiswick, Hammersmith, Fulham, Kensington, Chelsea

East London

Hackney, Tower Hamlets, Walthamstow, Stratford, Wanstead

Croydon & Surrey Borders

Croydon, Purley, Coulsdon, Shirley, Addiscombe, Sanderstead

Kent & Surrounding

Sevenoaks, Orpington, Dartford, Chislehurst, Bexley, Swanley

Frequently asked questions

Clear answers on permissions, timings, and site management

Direct contractor enquiry

Service Enquiry Form

Tell us about your property and goals. We will review your requirements, verify feasibility, and schedule an on-site consultation.

What happens after submitting:

1
Initial telephone review with our senior surveyor
2
On-site inspection and measurements in London or Kent
3
Itemised, transparent fixed-price quotation with timeline
Direct phone line available Monday to Saturday
Written estimates issued with full scope breakdown
Book a site consultation
Fill in your project details below to receive expert advice from our construction team.