High Quality Loft Conversions
Bristol loft conversion specialist
C & A Johnson Ltd is a family-run loft conversion and home extension company, proudly designing and constructing high-quality loft conversions and house extensions across Bristol, Bath and the surrounding areas for over 63 years. Specialising in bespoke loft conversions and custom home extension projects, we provide professional planning, design and construction services that help homeowners maximise space and add value to their property.
As one of Bristol’s trusted and longest serving loft conversion specialists, we’ve built our reputation on exceptional workmanship and long-standing customer satisfaction.
Established in 1963, our 60+ years of experience ensure you receive a professional, reliable, and knowledgeable service for any loft conversion or home extension in Bristol and the surrounding areas. Whether you’re looking to add space, increase property value, or transform the way you live, our expert team delivers high-quality loft conversions and home extensions tailored to your property.
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Your customer care starts here
If you are considering a loft conversion in Bristol or planning a house extension to create more space in your home, C & A Johnson can guide you through the entire process, from initial design to final completion.
We offer a free, no-obligation loft and extension design service, providing an initial layout and full specification to help you clearly understand the potential of your property. Whether you’re exploring dormer loft conversions, hip-to-gable loft designs, or Velux rooflight conversions, our team will help you choose the most suitable option for your home and lifestyle.
Operating on a complete in-house turnkey basis, we handle everything, from the first consultation, producing design drawings and structural design, through to the final stages of construction. Our streamlined approach ensures your loft conversion or home extension is delivered efficiently, smoothly, and to the highest professional standard.
The process
You can reach us via the contact form or by calling us on 0117 965 9575.
We will ask you a few details about the property and what you are looking to achieve from the Loft Conversion.
We will then schedule an appointment for one of our directors of the company to visit you, discuss your requirements, and carry out a full detailed survey of the property.
At the time of the site survey, we will discuss your specific loft conversion design requirements and assess the full potential your roof space has to offer.
During our visit, we will take detailed notes and measurements of your property, enabling us to produce a tailored loft conversion design on which a detailed specification and cost will be produced.
If you choose to appoint C & A Johnson Ltd as your preferred contractor, we will collaborate closely with you to refine the proposed design and ensure it aligns fully with your specific requirements. This process will lead to the preparation of comprehensive architectural design drawings.
Once the design has been finalised to your satisfaction, we will undertake all associated administrative responsibilities on your behalf. This includes submitting and managing any necessary planning applications with the local authority, arranging structural calculations, and obtaining building regulation approval.
All administrative and technical services required to progress the project from concept to completion are delivered in-house, providing you with a seamless and fully managed experience.
Once all administrative requirements for your project are complete, we will be in a position to commence the works.
Before the start of the project, one of our Managing Directors will visit you to discuss the project sequence and schedule. They will guide you through the loft conversion process and provide continuous project management throughout the duration of the works.
The construction phase of your project is undertaken by our fully qualified tradespeople, each highly experienced in their respective disciplines.
Our team has extensive experience working within the domestic construction sector and is accustomed to operating in occupied family homes.
Throughout the build, we strive to minimise disruption by carrying out the majority of the work independently within the roof space, ensuring your household routine is affected as little as possible.
Upon final completion of the project, you will receive all relevant documentation, including certification for the electrical installation, any Gas Safe work that has been carried out, and the final building control certificate.
Mr and Mrs Jones, Bromley Heath
C & A Johnson undertook a loft conversion for us in 2017. From first instruction to completion our experience was excellent.
During the design stage Simon explained everything clearly and advised on the best options for the space. During the build all of the team were professional and took great care to minimise the disruption and also to provide a high quality finish. This was supplemented by project management from Tyrone who provided regular site walk arounds, therefore allowing us to make key decisions on fittings etc in an informed way as we could see the build progressing.
We are very happy with the final outcome and would not hesitate in recommending C & A Johnson.
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Why choose C&A Johnson?
- A tailored design and build service from the outset with precise attention to detail.
- A turnkey service where everything, including design development, architectural drawings, and all administration works necessary to bring the project to fruition is provided as a complete in-house service.
- Continuous project management from start to finish.
- Experienced qualified tradesmen producing high-quality workmanship.
- Experienced registered heating and electrical contractors with full certification issued upon completion of works.
- All work passed in full compliance with building regulation requirements, with certification produced upon completion of work.
A selection of projects
Bristol Downend Hip to Gable Loft Conversion
Dormer loft conversion in Westbury On Trym Bristol
Semi Detached Flat Roof Loft Conversion
Kitchen Extension Downend Bristol
Loft Conversion in Staple Hill Bristol
Velux Loft Conversion Bristol Master Bedroom
Loft Conversion in Westbury On Trym
Loft Renovation Upgrade
Open Plan Kitchen Extension
Victorian Terrace Loft Conversion Bristol
Bristol-hip-to-gable-loft
