Our Services
Loft Conversions
About This Service
Loft Conversions, Handled from Start to Finish
Using Velux rooflights, Kingspan insulated rafter systems, Isover acoustic quilt and structural steel where required, 99 Building & Roofing fits loft conversions with trade-grade kit to meet Building Regulations and Part L ventilation standards. Structural alterations, roofing works, insulation and internal finishes are coordinated with safe access and party wall considerations.

Our Process
How It Works
Site Survey & Structural Check
A measured survey checks roof pitch, joist condition and load capacity, plus inspections for party wall and planning constraints. We issue a clear scope and a no-obligation written quote.
Design, Regulations & Consent
We produce layout drawings, specify Velux or dormer options, insulation details and structural changes. Building Regulations applications and any party wall notices are managed before works begin.
Build, Finish & Handover
Trade-grade materials and certified installers carry out roof alterations, insulation, new windows, stair installation and joinery. Final checks, handover pack and product guarantees are provided on completion.
Benefits
Why Choose us for Loft Conversions?
Trade-grade kit and compliance
We use recognised brands such as Velux, Kingspan and Isover and design to Part L and Part A standards, reducing risk and ensuring long-term performance.
Two decades of practical experience
With 20 years in roofing and building, including structural alterations and roof adaptations, you get workmanship that understands older Surrey roofs and modern builds.
Clear quotes, insured work and guarantees
Free written quotes, CSCS-qualified operatives, full public liability cover and product-dependent guarantees give confidence from survey to completion.
Practical loft conversions that work with your roof. Loft projects often need structural strengthening, new joists or flitch beams, upgraded insulation and rooflight installation. 99 Building & Roofing coordinates roofing trades, structural metalwork, stair installation and finishing trades so the conversion is watertight and compliant with Building Regulations.
Local service, clear communication. Based in Ashtead and working across Leatherhead, Epsom and surrounding towns, the team offers a free site survey, detailed drawings and straightforward quotes. For enquiries call 07909 114109 or email 99buildingandroofing@gmail.com. WhatsApp enquiries welcomed for fast replies.
FAQ
Frequently Asked Questions
Most loft conversions fall under permitted development, especially internal works and small dormers. Larger dormers, changes to roof height or properties in conservation areas may need planning permission. We advise a survey and will flag any planning requirements before work starts.
