For more than three decades, LMB Group has been at the forefront of the Loft Conversion industry — delivering beautifully designed, structurally sound lofts that transform the way families live. With over 3,000 happy customers, industry leading accreditations, and a commitment to craftsmanship, we’ve established ourselves as one of the most trusted names in South London and Surrey.
Whether you’re planning a Loft Conversion in Croydon, expanding for a growing family, or looking to add value to your home, here’s what truly sets LMB apart.
30+ Years of Proven Experience
Experience matters — especially when it comes to structural work in your home. For more than 30 years, our team has delivered thousands of lofts across London, Surrey, and the Southeast, from spacious dormers to elegant mansards.
Our Managing Director, Lee Murphy MCIOB, personally oversees each project. This hands-on leadership ensures that every conversion benefits from decades of technical knowledge, project management excellence, and a designer’s eye for detail.
Over 3,000 Happy Customers
Trust is earned — and we’re proud to have earned it from thousands of homeowners. From concept to completion, our process is built around communication, transparency, and reliability. Many customers choose LMB Group because they’ve been recommended by neighbours, friends, or family members who were delighted with their loft conversion.
What Our Customers Say
“We looked at several loft conversion companies, but LMB stood out immediately. Their reviews were excellent, and after speaking to Lee and seeing a completed project, we knew they were the right choice.” – Alexi, Redhill.
“With a growing family, we needed more space. LMB delivered exactly what we hoped for — two bathrooms, extra room for the grandchildren, and a beautiful finish. We couldn’t be happier.” – Anna, Streatham Common.
These real stories highlight what we strive for: dependable service, thoughtful design, and a finish that makes your home work better for you.
Fully Insured & Certified for Peace of Mind
When you choose LMB, you’re choosing a company that takes responsibility seriously. We are fully insured, fully certified, and committed to meeting the highest UK building and safety standards.
Unlike many smaller contractors, our insurance covers:
- Full public liability
- Employer’s liability
- Structural works
- Long-term project protection
This ensures your home — and your investment — are safeguarded at every stage of the build.
10 Year Structural Guarantee
Every LMB loft conversion comes with a 10 year structural guarantee, giving homeowners long-term confidence in the quality of our work.
This guarantee covers all major structural elements of your conversion, ensuring your new space is safe, secure, and built to last.
Industry Leading Accreditations
We’re proud to meet and exceed some of the UK’s most rigorous industry standards. Our accreditations demonstrate our commitment to quality, safety, and professionalism.
TrustMark Accredited
Government endorsed quality assurance, meaning all our work meets proven standards of competence and customer service.
CPA Approved Craftsman
Accredited by the Consumer Protection Association, providing deposit protection and insurance backed guarantees.
Chartered Building Company (CIOB)
This accreditation is awarded only to companies that demonstrate excellence in building practice and leadership.
Licensed by the Consumer Protection Association
Further assurance that our processes, workmanship, and customer service meet strict industry criteria.
A Complete Design and Build Service
We handle every stage of your Loft Conversion, including:
- Initial survey & feasibility assessment
- Concept design & architectural drawings
- Planning permission & building control
- Structural engineering
- Construction & project management
- Final finishing touches
You’ll have one team, one point of contact, and one seamless experience from start to finish.
Tailored Designs That Maximise Space
No two homes are the same — and no two loft conversions should be either.
We take into account:
- Roof height & structure
- Layout and existing property flow
- Natural light
- Storage requirements
- Family usage (bedrooms, offices, bathrooms, playrooms)
- Budget and long-term plans
Whether you’re dreaming of a luxury master suite, a home office, or a vibrant living area, we create bespoke designs that make the most of every centimetre.
Local Expertise: Loft Conversion Croydon and Beyond
Based in South London and Surrey, we understand local housing styles, planning requirements, and architectural challenges better than anyone.
This is especially true for Loft Conversion Croydon projects, where property types vary from Victorian terraces to 1930s semis and modern townhouses.
Our regional knowledge ensures:
- Faster planning approvals
- Smarter structural solutions
- Designs that enhance property value
- Reduced risks and delays
Why Homeowners Choose LMB
To summarise, here’s what truly sets us apart:
- 3,000+ satisfied homeowners
- 30+ years of industry expertise
- Fully insured and certified
- 10‑year structural guarantee
- TrustMark, CPA, CIOB accredited
- Local experts in South London & Surrey
- Transparent pricing and honest communication
- Beautiful, practical designs tailored to real family life
Choosing LMB Group means choosing a company trusted for quality, professionalism, and results that stand the test of time.