Business Details
28 Years
experience
Expert Loft Conversions in South London
South London Lofts has been delivering premium loft conversions and extensions across Greater London for over 25 years. Our expertise spans diverse property types including Victorian and Edwardian homes, flats, and conservation areas, with specialist knowledge in dormer conversions, mansard roofs, and Velux window installations. We provide a comprehensive service from initial design through planning permission, building control approval, and full project management, supported by our in-house architect team and experienced tradespeople. Our commitment to quality is underscored by a 10-year guarantee on all projects, backed by 5 million public and employer liability insurance. With hundreds of successful projects completed and a reputation built on client referrals, we combine technical excellence with exceptional customer service.Our streamlined process ensures minimal disruption to homeowners, with typical lead times of 2-12 weeks depending on planning requirements. We maintain strict quality control through our dedicated workforce and systematic project management approach, ensuring every conversion meets exacting standards. Client testimonials consistently highlight our reliability, craftsmanship, and the transformative impact of our work on property value and living space. Our competitive pricing model and transparent quoting system have made us a trusted choice for London homeowners seeking premium loft conversions without hidden costs.
Services
Loft conversions
Mansard extensions
Dormer conversions
Velux installations
Roof terraces
Staircase design
Bathroom installations
Party wall agreements
Architectural drawings
Building control applications
Details
- Year established: 1998
Highlights and features
- We offer 25 years of specialist experience in London loft conversions
- Our team provides full project management from design to completion
- We guarantee all work with a 10-year warranty
- We maintain 5 million public liability insurance coverage
- We provide competitive pricing with transparent cost breakdowns
What people say
High-quality workmanship
On time and on budget
Excellent communication
Professional tradespeople
Transformative results
Services
Loft conversions
Specialist loft conversions for London properties including dormers, mansards, and Velux installations. Our expert team handles all aspects from initial design through building control approval. We deliver complete project management with 10-year guarantees, serving both standard and conservation area properties.
Mansard extensions
Custom mansard extensions that maximise vertical space while maintaining architectural integrity. Our designs comply with London planning requirements and include full structural support. We integrate modern insulation and finishing for energy-efficient living spaces.
Architectural design
In-house architectural design with 3D visualisations and structural calculations. We create tailored solutions that meet building regulations while optimising space utilisation. Our team prepares detailed plans for council submissions and building control approval.
Project management
Comprehensive project management covering all trades and timelines. We coordinate electricians, plumbers, and builders to ensure seamless execution. Our system includes regular progress updates and quality control checks throughout the conversion process.
Building control
Full building control services including plan submission and site inspections. We handle all necessary paperwork and ensure compliance with current regulations. Our team works with approved inspectors to expedite the approval process.
Questions
What types of loft conversions do you specialise in?
We specialise in dormer conversions, mansard extensions, hip-to-gable conversions, and Velux window installations for various property types including Victorian homes and conservation areas.
Do you handle planning permission and building regulations?
Yes, we manage the full planning application process and building control approvals, including architectural drawings and structural calculations.
What guarantees do you offer?
All our projects include a comprehensive 10-year guarantee covering both materials and workmanship.
How long does a typical loft conversion take?
Most conversions take 8-12 weeks from start to finish, depending on planning requirements and project complexity.
Are you insured for property damage?
We maintain £5 million public liability insurance and £5 million employer liability insurance for complete client protection.
Reviews (5)
Dawn Worrell
Nov 22, 2021
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Can't say enough good things about this company. They started the loft in April and finished it in July. The delays were caused by the difficulties in getting materials due to lockdown and the shortage of delivery drivers following brexit. Our loft was finished to a high standard with the project manager offering money saving advice as well as advice on ascetics and design. He answered our queries in a speedy manner and checked in regularly! This room and bathroom have become my sanctuary. Thanks guys!
Nickie Rehal
Sep 14, 2021
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We have just had an extension completed by South London Lofts. This is the second time we have used them; they built our loft in 2016. They are a very honest and hardworking group of guys; we cannot fault their workmanship. The on-site builders were very respectful, each night they left the building site clean, tidy and secure. South London Lofts were so impressive when they built our loft, in 2016, that we knew when we were ready to get our extension, we would use them again. We did get a couple of quotes and South London Lofts were very competitive. Craig visited us on both occasions and went
Adele
Sep 12, 2021
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The only positive thing I can say is that the build itself was fast. While we have achieved a good finished product, that is at the cost of a lot of blood, sweat and tears from us, and an immense amount of stress. As pointed out by other reviewers, you pay the initial deposit to South London Lofts and then they hand you off to sub-contractors. We were clear upfront that we had never done anything like this before and were assured that the project manager would tell us everything we needed to know. South London Lofts quotes its service aim as giving you the best loft conversion speedily
Stephen Cook
Aug 24, 2020
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South London Lofts have just finished
South London Lofts have just finished my rear dormer conversion and we couldn't be happier with the finish. We now have a lovely sized bedroom with an en-suite shower room. We also decided to upgrade to the Aluminum windows and French doors, the finish is fantastic ! We were originally told the conversion would take around 8 weeks to complete and the team finished it in 7 weeks. This has really helped me out as i now have an extra room to work from home in these tough times.
An extra thanks to the project manager 'Paul'. He was very professional and always
South London Lofts have just finished my rear dormer conversion and we couldn't be happier with the finish. We now have a lovely sized bedroom with an en-suite shower room. We also decided to upgrade to the Aluminum windows and French doors, the finish is fantastic ! We were originally told the conversion would take around 8 weeks to complete and the team finished it in 7 weeks. This has really helped me out as i now have an extra room to work from home in these tough times.
An extra thanks to the project manager 'Paul'. He was very professional and always
G. H.
Dec 21, 2017
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After seeing quite a few builders we chose South London Lofts. They were clear about the process, answered all our questions and they offered a good price. What sealed it for us was seeing a few of the jobs they had already done. One was done a good while back, which we wanted to see so we could see how the quality of the work stood up over time, and the other had just been finished a few days earlier and is a couple of streets from us. The people there told us how they had had very positive experiences of their build, and we could see ourselves the quality of everything. We have a mid-terrace
