Our Loft Conversion Process
At Reservoir Construction, we specialise in delivering high-quality loft conversions across Barnet, Hertfordshire, and Welwyn Garden City. Our fully managed, end-to-end process ensures every project is completed on time, on budget, and to the highest standards - with a 10-year workmanship guarantee.
Whether you're planning to add a bedroom, home office, or en-suite master suite, our experienced team is here to guide you through every step.
Step 1:
Free Consultation & Site Visit
We begin with a free on-site consultation where we assess your loft space, head height, roof structure, and overall feasibility. We’ll discuss your goals, budget, and timeline, and offer advice on planning permission or permitted development rights — particularly relevant in areas like Barnet and Welwyn Garden City where local planning rules may vary.
Step 2:
Architectural Design & Planning
Our in-house design team will create detailed plans and elevations based on your needs and style preferences. We manage the entire planning process, including submissions to the local authority and any party wall agreements required under Hertfordshire regulations.
Step 3:
Structural Work & Construction
Once approvals are in place, we begin the build phase. This includes structural steel installation, dormer construction (if applicable), new floor joists, stair access, and roof modifications. Our team ensures that all work complies with UK Building Regulations and is carried out safely and efficiently.
Step 4:
Plumbing, Electrics & Insulation
We install energy-efficient insulation, new lighting and electrical wiring, and plumbing for en-suites or additional bathrooms. All systems are installed by qualified professionals and certified to current safety standards.
Step 5:
Interior Finishing
We complete the interior with plastering, flooring, decorating, and final fixtures. Whether it's a guest room, office, or studio, we deliver a polished, high-spec finish tailored to your needs.
Step 6:
Final Inspection & 10-Year Guarantee
Once the work is complete, we walk you through the finished space to ensure you’re fully satisfied. Every loft conversion comes with a 10-year workmanship guarantee for your peace of mind.