Expert Loft Conversion & Attic Renovation Services
At Elest Group, we transform unused lofts and attics into beautiful, functional living spaces. Whether you need an extra bedroom, home office, or studio, our team handles everything from design and structural work to insulation, electrics, and finishing touches. We deliver high-quality loft conversions in London that combine style, practicality, and long-term value, completed with precision and care.

Loft Conversion Design & Planning in London
At Elest Group, we create bespoke loft conversions designed around your home and lifestyle. Serving Westminster, Camden, Islington, Hammersmith, Wandsworth, and Richmond, our team manages every stage from design and planning to material selection ensuring a smooth, high-quality transformation.
Structural Works & Roof Reinforcement
Our experienced team handles all structural works, RSJ installation, and roof alterations required for your loft conversion. Every element is completed safely and efficiently to create a solid, long-lasting structure built to the highest standard.
Insulation, Roof Windows & Soundproofing
We install high-performance insulation, Velux or dormer windows, and professional soundproofing to keep your loft bright, quiet, and energy-efficient all year round.
Electrical, Plumbing & Heating Installation
Certified electricians and plumbers manage all services from lighting and power points to bathrooms, radiators, and underfloor heating. We ensure safe, efficient installations that integrate perfectly with your new layout.
Interior Finishes & Bespoke Joinery
From premium flooring and tiling to custom wardrobes and fitted furniture, we deliver refined finishes that turn your loft into a comfortable, luxury living space crafted with precision and care.
Project Management & Quality Assurance
From design to completion, Elest Group provides full project management and quality control. We coordinate all trades, maintain clear communication, and guarantee your project is delivered on time, on budget, and Right First Time Every Time.
Loft Conversion FAQs – Everything You Need to Know
How long does a loft conversion take to complete?
The cost of a loft conversion in London typically starts from around £25,000 – £35,000 for a simple Velux conversion, £35,000 – £50,000 for a dormer extension, and £50,000+ for larger or more complex mansard conversions. The final cost depends on the size of the space, design complexity, structural work, and finishes chosen.
How long does a loft conversion take to complete?
Most loft conversions take around 6 to 10 weeks from start to finish. Smaller Velux conversions can often be completed in 4 to 6 weeks, while larger projects that involve structural changes, dormer extensions, or ensuite bathrooms may take slightly longer.
Do I need planning permission for a loft conversion?
Many loft conversions fall under permitted development rights and do not require planning permission. However, larger conversions, mansards, or those altering the roof shape often do. We’ll guide you through the process and handle all required drawings, planning applications, and building regulation approvals.
What types of loft conversions do you offer?
We offer all major types of loft conversions, including Velux (rooflight) conversions, dormer extensions, hip-to-gable conversions, and full mansard loft conversions. Each type offers different benefits depending on your property style, available space, and budget.
Will a loft conversion add value to my property?
Yes – a professionally designed loft conversion can add up to 20–25% to your property’s market value. It’s one of the most cost-effective ways to increase living space, especially in high-demand London areas like Chelsea, Kensington, Fulham, Hampstead, and Notting Hill.
Do you provide a warranty on loft conversions?
Yes, all our loft conversions come with a 12-month workmanship warranty and full compliance with UK building regulations. We also offer continued aftercare support to ensure your new space remains in perfect condition.
Why Choose Us
🏆 Right First Time – Every Time
Our experienced renovation team delivers flawless results from the very first visit. We plan, manage, and complete every project with precision saving you time, money, and unnecessary stress.
💬 Transparent Pricing & Clear Communication
We believe luxury property refurbishment should come with complete transparency. Our quotes are clear, itemised, and upfront with no hidden costs and no unexpected changes so you’re always in control.”
🏡 12-Month Workmanship Warranty
Every project we complete is protected by a comprehensive 12-month workmanship warranty, giving you complete peace of mind and confidence in the quality and durability of our work.
⏱️ On Time & On Budget
From kitchen and bathroom renovations to full home refurbishments, we deliver projects on schedule and within the agreed budget. Our streamlined process ensures minimal disruption to your home and lifestyle.