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Spray foam insulation installed in a residential loft space by Firmus Roofing & Building.

Premium Loft Conversions in Bicester

Are you looking to unlock the hidden potential of your home? At Firmus Roofing & Building, we specialise in delivering premium loft conversions in Bicester and across the Cherwell district. Whether you envision a bright new master bedroom, a quiet home office, or a luxury bathroom, our family-run team brings over 15 years of industry experience to every project.We expertly manage all types of attic conversion, from straightforward Velux roof light installations to spacious dormer lofts and extensive hip to gable extensions. Our meticulous attention to detail ensures a seamless integration with your existing property. Ready to transform your underutilised attic space? Call our local experts today on 01296 938085 to arrange a free, no-obligation survey.

Maximise Your Space Without Moving Home

Choosing to expand upwards is one of the smartest investments you can make in your property. A high-quality home extension into the roof not only creates beautiful, functional living space but can also significantly increase your property's market value.Avoid Moving Costs: Gain the extra room you need without the stamp duty, legal fees, and stress of relocating away from Bicester.Energy Efficiency: Upgrading your roof space with modern insulation improves your home's thermal efficiency, helping to lower heating bills.Bespoke Design: Tailor the space exactly to your lifestyle, complete with custom storage and natural light solutions.Speak to our Bicester builders today on 01296 938085 to discuss how we can elevate your home.

Bespoke Dormer, Mansard & VELUX Conversions

Full UK Building Regulations Compliance

Seamless Integration with Existing Architecture

Over 15 Years of Local Craftsmanship

Backed by a 10-Year Workmanship Guarantee

Dormer loft conversion with vertical tile-hanging and leadwork by Firmus Roofing & Building in Aylesbury.

Expert Design & Local Planning

Every successful loft conversion starts with meticulous planning. We handle structural engineering assessments and ensure full compliance with Buckinghamshire building regulations, Party Wall agreements, and permitted development rights to ensure your new space is safe and legally compliant.

Premium Materials & Insulation

Leveraging over 15 years of trade expertise, we source only top-tier materials. From energy-efficient VELUX windows to high-grade thermal insulation and matching exterior finishes that respect local Conservation Areas, we ensure your attic extension perfectly complements your home.

Flawless Construction & Build

Our fully insured master craftsmen manage the entire build with minimal disruption to your daily life. Backed by our comprehensive 10-year workmanship guarantee, we deliver a seamless transformation, from structural timber work and roofing adaptations to the final coat of plaster.

Your Step-By-Step Attic Conversion Journey

We believe that creating your dream loft should be an exciting, stress-free experience. Our comprehensive, end-to-end service ensures every detail is handled with precision and care.1. Free Initial Survey: We visit your property to assess your roof structure, discuss your vision, and provide a transparent, free quote.2. Design & Structural Engineering: We collaborate with you to finalise layouts, ensuring all structural calculations and architectural plans meet local standards.3. Professional Build: Our experienced tradesmen complete the construction work, from reinforcing the floor to fitting new roof trusses, with minimal disruption to your daily life.4. Final Finish: From plastering and plumbing to custom joinery, we deliver a flawless finish ready for you to decorate.

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Expert tile roofing installation and leadwork by Firmus Roofing & Building on a Buckinghamshire home extension.

Areas We Serve

Proudly providing premium loft conversions and transformative building services across a 25-mile radius of Aylesbury. As your trusted local experts, we serve homeowners in Buckingham, Thame, Wendover, High Wycombe, Milton Keynes, and the surrounding regions across Buckinghamshire, Bedfordshire, Oxfordshire, and Hertfordshire.

Expert pitched roof tile installation and repair in Buckinghamshire by Firmus Roofing & Building.

Navigating Bicester Planning Permissions

We understand that navigating local planning laws can feel overwhelming. Firmus Roofing & Building ensures your project is fully compliant with UK Building Regulations, overseeing structural integrity, fire safety, and insulation standards. We coordinate all necessary building control inspections on your behalf to guarantee a safe and legal build.While many loft conversions fall under permitted development rights, properties located in Cherwell's conservation areas or those that are listed buildings require careful planning. We have extensive experience liaising with local authorities in Bicester, Oxfordshire, and surrounding villages to secure the required planning permissions using sympathetic, matching materials. We also provide expert guidance on Party Wall Act agreements if your home is terraced or semi-detached.

Ready to transform your Buckingham home with an expert loft conversion?

Call 01296 938085 For A Free Quote