Trussed Roof Loft Conversion
LOFT CONVERSIONS FOR OVER 20 YEARS!
- Specialist Loft Conversion Builders in London
- 20+ Years of Experience
- Bespoke Loft Conversion Designs
- 10 Year Guarantee
- Fully Compliant with the Latest Building Regulations
- £5 Million in Insurance Cover
Interested in A Trussed Roof Loft Conversion? Contact Us Today

With a rich history spanning over 20 years, Clapham Construction Service has been at the forefront of transforming homes to meet the evolving needs of our clients. Our philosophy is simple yet impactful; we prioritise the aspirations of our clients, delivering bespoke loft conversions that encapsulate their visions.
Trussed roof loft conversions, while technically challenging, open a realm of possibilities to augment living spaces in a modern home. Our seasoned team navigates the complexities inherent in trussed roof structures, unlocking the potential to create functional, aesthetically pleasing, and value-adding spaces. Our service is not about sales pitches or glossy brochures; it’s about good-quality workmanship, transparent pricing, and a customer-centric approach that has garnered trust and satisfaction over the decades. At Clapham Construction Service, we invite you to explore the transformative journey of a trussed roof loft conversion, guided by expertise, nurtured by experience, and driven by a genuine desire to deliver excellence.
UNDERSTANDING TRUSSED ROOFS
WHAT ARE TRUSSED ROOFS ?
Trussed roofs are a prevalent design in modern homes, engineered off-site and brought to the construction site as complete frameworks for installation. This design starkly contrasts with traditional cut roofs, which are built on-site using loose timber. Here are essential facets of trussed roofs:
Design: At the heart of a trussed roof’s design are the triangular frameworks. These triangles create a series of ‘W’ shapes across the roof, formed by interconnected beams.
The triangular configurations excel in distributing the weight of the roof and additional loads like snow or wind evenly across the building’s walls.
Material: Both timber and steel are employed to construct trussed roofs. While timber is a traditional and cost-effective choice, steel, although pricier, offers superior structural strength.
Space and Headroom: The numerous beams in a trussed roof significantly curtail the available space and headroom in the loft, which is a notable challenge for loft conversions.
Structural Integrity: Engineered for structural stability, any modifications to a trussed roof demand a precise approach to preserve the structural integrity of the building.
Insulation and Ventilation: Insulating a trussed roof entails fitting insulation material between the trusses—a meticulous task. Proper ventilation is paramount to ward off condensation and ensure a comfortable ambiance in the converted loft.
Armed with an understanding of trussed roofs, we are better positioned to delve into the intricacies of trussed roof loft conversions in the following sections, illustrating how Clapham Construction Service navigates these complexities to deliver exceptional loft conversions.

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INITIAL ASSESSMENT FOR TRUSSED ROOF LOFT CONVERSIONS
Embarking on a trussed roof loft conversion begins with a thorough initial assessment conducted by our seasoned experts at Clapham Construction Service. This initial scrutiny is pivotal in gauging the feasibility and the latent potential of a trussed roof loft conversion for your home. Here’s a glimpse into the key considerations explored during the initial assessment:
Structural Integrity: Our specialists meticulously examine the structural integrity of the existing trussed roof, evaluating the robustness and the ability to withstand alterations essential for the conversion.
Headroom: The available headroom is a critical determinant in the design process. We measure the vertical space to ensure a comfortable living area post-conversion, identifying the necessity for dormer extensions or other alterations.
Insulation: Insulation is integral to creating a cosy and energy-efficient living space. Our assessment includes a review of the existing insulation and recommendations for enhancements to meet energy efficiency standards.
Ventilation: A well-ventilated loft conversion wards off condensation issues and provides a pleasant atmosphere. The assessment outlines the current ventilation status and proposes solutions for optimal airflow.
The insights garnered from this initial assessment are instrumental in charting the course for the design phase, ensuring a seamless alignment with structural requisites and your envisioned living space. Clapham Construction Service is dedicated to laying a solid foundation right from the onset, paving the way for a successful and satisfying trussed roof loft conversion journey.
TAILORED DESIGN SOLUTIONS
At Clapham Construction Service, we pride ourselves on delivering bespoke loft design solutions that seamlessly blend with the existing architectural nuances of your home while accommodating the structural constraints of trussed roofs. Here’s a glimpse into our tailored design journey:
Working Around Existing Trusses: Our design experts meticulously devise plans that work around the existing trusses, ensuring structural integrity while maximising the usable space.
Incorporating Dormer Extensions or Steel Beams: Depending on the headroom and floor space requirements, we may propose dormer loft extensions or the integration of steel beams to create a spacious, comfortable living area.
Natural Light and Stair Access: We pay special attention to enhancing natural light through skylight loft conversion windows, alongside designing accessible stairways that comply with building regulations.
Personalised Interior Design: Our designs are tailored to your preferences, whether you envision a modern, minimalistic loft or a cosy, traditional space. We ensure the interior design complements the overall aesthetics of your home.
Planning for Future Modifications: Our designs are forward-thinking, allowing for future modifications or expansions, ensuring your loft remains a valuable and adaptable space for years to come.
Through a collaborative approach, we engage with you at every design juncture, ensuring the final blueprint echoes your aspirations while adhering to structural and regulatory requisites. At Clapham Construction Service, our tailored design solutions are the cornerstone of turning the trussed roof loft conversion dream into a tangible reality.

Interested in A Trussed Roof Loft Conversion? Contact Us Today

PLANNING AND REGULATORY COMPLIANCE
Navigating the labyrinth of loft planning permissions and building regulations is a critical facet of a trussed roof loft conversion. At Clapham Construction Service, we offer a guiding hand through this complex journey, ensuring every aspect of your London loft conversion complies with the local authority requirements. Here’s a snapshot of how we facilitate this process:
Detailed Guidance: We provide meticulous guidance through the planning permission process, elucidating the requirements and helping you prepare the necessary documentation.
Local Authority Requirements: Our seasoned experts are well-versed in the local authority requirements, especially in conservation areas or listed buildings, ensuring your loft conversion adheres to the stipulated regulations.
Building Regulations Adherence: From structural integrity, fire safety, to energy efficiency, we ensure your loft conversion is in strict compliance with the building regulations, safeguarding the safety and legality of the project.
Liaison with Authorities: We liaise with the relevant local authorities on your behalf, ensuring a smooth approval process and promptly addressing any queries or concerns raised by the authorities.
Transparency: Throughout the planning and regulatory compliance process, we maintain a transparent communication channel with you, keeping you informed of the progress and any potential adjustments needed.
At Clapham Construction Service, our goal is to shield you from the intricacies of planning permissions and regulatory compliance, providing a hassle-free path towards realising your trussed roof loft conversion dream.
CONSTRUCTION EXCELLENCE
The hallmark of Clapham Construction Services reputation is our unwavering commitment to construction excellence. We blend meticulous planning with superior craftsmanship to transform the design blueprint into a living reality. Here’s an insight into our construction ethos:
Methodical Construction Process: Our construction process is methodical and well-orchestrated, ensuring every phase is executed with precision and in adherence to the stipulated building regulations.
Safety and Structural Integrity: We prioritise the safety and structural integrity of the trussed roof loft conversion, employing rigorous quality control measures to ensure a sturdy and secure construction.
High-Quality Workmanship: Our skilled craftsmen bring a wealth of experience and a keen eye for detail, delivering high-quality workmanship that stands the test of time.
Timely Completion: We understand the importance of timelines and strive to complete the project within the agreed timeframe, without compromising on the quality of construction.
Site Cleanliness and Minimal Disruption: We maintain a clean and organised construction site, aiming for minimal disruption to your daily life while the construction is underway.
Transparent Communication: Throughout the construction phase, we keep you informed of the progress, ensuring a transparent and collaborative experience.
At Clapham Construction Service, our construction excellence is not just about building loft conversions; it’s about crafting spaces that resonate with your aspirations, while embodying quality, safety, and durability.

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INSULATION, VENTILATION, AND FIRE SAFETY SOLUTIONS
At Clapham Construction Service, we understand that insulation, ventilation, and fire safety are paramount for creating a comfortable, safe, and energy-efficient living space in your trussed roof loft conversion. Here’s how we address these critical aspects:
Effective Insulation:We meticulously install insulation between the trusses and other key areas to minimise heat loss, enhancing energy efficiency and reducing your heating bills.
Ventilation Solutions: Adequate ventilation is essential to prevent condensation, ensure a pleasant atmosphere, and provide a means for smoke to be cleared quickly in case of a fire. We design ventilation solutions that ensure continuous airflow, keeping the space fresh and dry.
Condensation Risk Analysis: Our experts conduct a thorough condensation risk analysis to identify and mitigate any potential issues, ensuring a healthy living environment.
Fire Safety Compliance: We adhere to fire safety regulations by incorporating fire-resistant materials, installing fire doors, and ensuring the provision of escape routes.
Smoke Alarms: We install smoke alarms in accordance with regulatory guidelines to provide early warning in the event of a fire, ensuring the safety of the occupants.
Safe and Accessible Stairways: Our design includes planning for safe and accessible stairways to the new loft space, ensuring they comply with the building regulations for safety and accessibility.
Energy Efficiency Consultation: We provide consultations on energy efficiency measures, advising on additional steps you can take to make your loft conversion more environmentally friendly.
At Clapham Construction Service, our holistic approach ensures that your trussed roof loft conversion is comfortable, safe, and compliant with all necessary regulations, providing you peace of mind as you enjoy your new living space.
ENHANCING PROPERTY VALUE
A well-executed trussed roof loft conversion not only provides additional living space but significantly enhances the value of your property. Here’s how Clapham Construction Service contributes to this value addition:
Increased Living Space:A trussed roof loft conversion significantly increases the usable space in your home, adding one or more rooms that can serve various purposes, from bedrooms to home offices.
Higher Property Valuation: The additional living space in the loft invariably leads to a higher property valuation. Prospective buyers often see loft conversions as a desirable feature, providing an edge in the competitive real estate market.
Modernisation and Aesthetic Appeal: Our tailored design solutions not only optimise the space but also modernise your home, enhancing its aesthetic appeal which in turn attracts potential buyers.
Improved Energy Efficiency: By incorporating effective insulation and ventilation solutions, we help in improving the energy efficiency of your home, a feature that’s increasingly becoming a priority for home buyers.
Quality Workmanship: Our high-quality workmanship ensures that the loft conversion stands the test of time, reflecting positively on the overall value and appeal of your property.
We also offer professional advice on how to further enhance the value of your property through additional home improvement projects.
At Clapham Construction Service, every trussed roof loft conversion project is an opportunity to significantly enhance the value and appeal of your property, ensuring you reap the benefits of a wise investment for years to come.

Get Your Loft Converted Today

WHY CHOOSE CLAPHAM CONSTRUCTION FOR YOUR TRUSSED ROOF LOFT CONVERSION
Unmatched Expertise: With over 20 years of experience, we have honed our skills in delivering high-quality trussed roof loft conversions that meet your needs and exceed your expectations.
Customer-Centric Approach: Your satisfaction is our priority. From the initial consultation to the project completion, we ensure a seamless process, clear communication, and tailor-made solutions.
Transparent Pricing: No hidden charges, no surprises. We provide clear cost estimates, ensuring you get the best value for your investment.
Regulatory Compliance: We navigate the planning permissions and building regulations, ensuring your trussed roof loft conversion is compliant and hassle-free.
Innovative Design Solutions: We blend functionality with aesthetics, creating designs that maximise space, light, and the potential of your trussed roof loft conversion.
Free Consultation: We offer a free consultation to discuss your trussed roof loft conversion ideas and provide professional advice to help you make informed decisions.
CONTACT CLAPHAM CONSTRUCTION
Ready to transform your trussed roof into a beautiful, functional loft space? Clapham Construction Service is here to guide you every step of the way. Reach out to us for a free consultation, and let’s explore the potential of your home together.
Phone: 0203 950 7957
Online Inquiry: Fill out our online contact form and one of our experts will get back to you promptly.
Your journey towards a stunning trussed roof loft conversion begins with a call. Contact us today, and experience the exceptional service and quality workmanship that have satisfied our customers for over 20 years.
Testimonials
Georgia Beales2025-08-01Trustindex verifies that the original source of the review is Google. We’ve had our dormer loft conversion for coming up to three years now and haven’t had any major issues in this time. Any minor snagging issues have been dealt with quickly by Clapham. The whole process from start to finish was seamless. All the builders were very friendly and considerate too. Will continue to recommend this company to anyone who needs a loft done and will not hesitate to use again in the future. Thank you! Danilo Rico2025-07-07Trustindex verifies that the original source of the review is Google. Clapham construction service was extremely professional, the project was finished before the plan and we are so happy with our new space. Problems were resolved quickly and efficiently throughout the process. This was one of our best investment that not only added value to our property but also a significant improve of our quality of life. Joel Prime2025-07-02Trustindex verifies that the original source of the review is Google. I had a loft conversion completed by Clapham Construction Service earlier this year and couldn't be happier with the results. Paul and Dangis were on site every day and kept me fully informed throughout the entire process. Their communication, professionalism, and attention to detail were outstanding. I felt completely confident in their work from start to finish. Highly recommended for anyone looking for reliable and high-quality building services. Jane Ansell2025-05-08Trustindex verifies that the original source of the review is Google. We recently completed a double mansard loft conversion with Clapham Construction Service, and were very happy with the whole design and build process from start to finish. Paul and Dangis were great to work with, providing clear communication and always being available to answer questions or discuss options. Their team are also excellent, with all the trades doing a great job, very professional and respectful of the rest of our house. Inevitably with a build project there were a couple of issues that cropped up along the way, but CCS were excellent at helping resolve them. We are delighted with the final loft and the extra space, and have already recommended them to others! Jamie Garratt2025-01-24Trustindex verifies that the original source of the review is Google. We have just completed a loft conversion with Clapham Construction and it was great! We are so pleased with the new loft we have in our house, but the process of working with CC was really good. They were easy to engage with from the outset, the price was competitive and the actual construction was quick and efficient. Obviously it was a major building project with all the mess and decisions you’d expect, but it was made a lot easier and less stressful working with Paul, Dangis and the team. They completed the project on time and on budget and we enjoyed working with them - that is more than almost anyone we know can say about similar projects! We’d definitely recommend them. Christina Ansong2024-10-16Trustindex verifies that the original source of the review is Google. We had an exceptional experience with Clapham Construction for our loft conversion. Paul, Dangis, and the whole team were fantastic from start to finish. They transformed our attic into two beautiful loft rooms and a bathroom, exceeding our expectations with their attention to detail. The entire project was completed at an impressive speed without compromising quality. The team showed great care throughout, ensuring everything was done to the highest standard. Their service was professional, friendly, and stress-free. We’re absolutely thrilled with the results and would highly recommend Clapham Construction! Ayan Sengupta2024-08-31Trustindex verifies that the original source of the review is Google. We have recently used Clapham Construction Services for loft conversion to add a bedroom and a bath in the house. We are very happy with the end-to-end experience with Paul, Dangis and the entire CCS team for high quality work done in quick time and with a very collaborative approach. Our overall project went into some unexpected blockers, but Paul and Dangis patiently helped us to resolve all the matters, kept us updated with timely communication and have been very flexible to guide us. They brought in a fantastic team to complete the work fast and in a cost-efficient manner. We will recommend CCS any day as a trusted team for home transformation projects. Dani Carter2024-07-02Trustindex verifies that the original source of the review is Google. 2024 Review - Part 2 Building a whole new kitchen and taking down every wall is not for the faint hearted. We took a number of years to decide and raise the funds. At tender stage, Clapham Construction, the top team who built our loft 2 years previously (see the other review below), suggested they might have space to take on the project. It was a key decision. From the off they worked tirelessly to keep the build on time and worked hard with us to keep it on budget. Paul or Dangis were on site daily managing the teams and fielding our endless questions. There were obviously bumps, stresses and challenges, it was a rollercoaster; but the high level of communication and attention to detail was exceptional. And all done with great humour and calm disposition. Not only did they take the time to manage the teams and us, they also helped with every niggle on the way - from architects, to delays with the door supplier we had sourced independently. We are now in the extremely fortunate position of having a space we could only have dreamed about. This would not have been possible without Paul and Dangis and the Clapham Construction team. In addition, they are just lovely people who are a joy to have in our home. Not the most essential thing you might think when hiring a build team, but actually crucial in the day to day grind of chaos and dust. We are hugely, eternally grateful and I just cannot recommend them enough. 2022 Review - Part 1 Absolute professionals is the first thing you need to know about Clapham Construction service. And there are two further things: they are brilliant at what they do and they are generous in spirit. Throughout our project Paul and Dangis answered our naive questions with warmth and care. They helped guide us at every turn, and almost certainly saved us money by making sure we considered all the options we had before making key decisions. But not just customer care, the building work is also top notch. The build itself was a well oiled process, coordinated with skill. I was initially worried about getting an anonymous loft company I'd never heard of in (after getting 8 different quotes from a variety of places including famous local ones) and being part of the 'box on the roof' brigade. Yet somehow, they have created build magic with some tweaks on 'a little bit of height' here, and 'a little configuration' there. We keep marvelling at the sturdiness and smoothness of the physical build even now, and the army of highly skilled teams they have were a pleasure to host in the house while we worked from home. And finally the most important bit - the money stuff- our Loft extension (including bathroom) was completed on time and more or less on budget. The additional costs were the unforseen (yikes victorian chimney ) and a few flourishes that we ourselves added to the mix (make everything gold). Any additional build costs were communicated efficiently and immediately. Our experience of Clapham Construction is that they are patient, hugely knowledgable, and detail orientated with a wealth of incredible advice. Book them now if they have a slot! Davina combes2024-06-19Trustindex verifies that the original source of the review is Google. I recently finished a loft conversion (2BR plus a bathroom) with CCS and couldn’t be happier with the new space. The process could not have gone smoother thanks to Paul, Dangis and their fantastic teams professionalism and attention to detail. They stayed on the timeline that was agreed despite terrible weather conditions which they worked around without any issues reassuming me every step of the way. I have a few more projects around the house and will definitely be looking forward to working with them again. Thanks Paul, Dangis and the CCS team. Freddie R2024-03-26Trustindex verifies that the original source of the review is Google. Paul and Dangis come highly recommended, they completed the conversion of our loft into an L-shaped mansard providing an additional 2 bedrooms and en-suite. From initial engagement, Paul and Dangis couldn’t have been more helpful, providing us with the necessary information and quotation in order for us to make the decision to undertake the works to the property. We have now lived in the finish product for over 6 months and feel that if we needed CCS assistance then they are still at the end of the phone. In summary, we are thrilled with the product, and the process was made simple - 10/10!
Google rating score:5.0 of 5,based on 54 reviews