Home Renovation in London: Complete Guide to Costs, Timelines and What to Expect in 2026

A home renovation in London can transform your property, increase its value and improve your quality of life. Whether you are planning a kitchen renovation, bathroom refit, full internal refurbishment or a complete renovation including structural changes, this guide covers everything you need to know about costs, timelines and the renovation process in 2026. LCCL Construction offers complete home renovation services across London and Hertfordshire.

Home Renovation in London: Complete Guide to Costs, Timelines and What to Expect in 2026

Home Renovation Costs in London (2026)

Home renovation costs in London vary significantly depending on the scope. A kitchen renovation typically costs £15,000 to £40,000 depending on size and specification. A bathroom renovation costs £8,000 to £20,000. A full internal renovation including rewiring, replumbing, new kitchen and bathrooms, plastering and decoration costs £50,000 to £150,000 depending on property size. A complete renovation including a loft conversion or extension can cost £80,000 to £200,000 or more. These prices are based on mid-range specifications in 2026 and include all labour and materials.

How Long Does a Home Renovation Take?

A kitchen renovation takes 4 to 8 weeks. A bathroom renovation takes 2 to 4 weeks. A full internal renovation of a 3-bedroom house takes 12 to 20 weeks. A complete renovation including structural work, loft conversion or extension takes 6 to 12 months including the design and planning phase. Using a design and build company like LCCL Construction reduces the overall timeline by eliminating gaps between design, approvals and construction stages.

Do I Need to Move Out During a Renovation?

Whether you need to move out depends on the scope of work. For a kitchen or bathroom renovation, you can usually stay in the property with some inconvenience. For a full internal renovation involving rewiring and replumbing, it is often more practical to move out for 2 to 4 weeks during the most disruptive phase. For a complete renovation including structural work, moving out for the duration is recommended for comfort and safety, though LCCL Construction works to phase the build to minimise disruption wherever possible.

How to Plan a Successful Home Renovation

Successful home renovations start with clear objectives and a realistic budget including a 10% to 15% contingency. Choose a reputable design and build company that handles everything from design through to construction. Get a detailed fixed-price quote before committing. Agree a clear payment schedule tied to milestones. Ensure all necessary building regulations approvals and party wall agreements are in place before construction begins. Establish regular communication with your project manager and make all finish selections such as kitchen units, tiles, flooring and paint colours early to avoid delays.

Why Choose LCCL Construction for Home Renovations

LCCL Construction offers complete home renovation services across London and Hertfordshire from our base in Finchley, London N3. Our design and build service covers everything from architectural design, planning and building regulations through to construction, project management, mechanical and electrical services and finishing. We have over 20 years of experience, more than 200 reviews rated 4.7 out of 5, and are LABC Registered Partners offering optional 10-year warranties. Call 020 8037 7332, email info@lcclconstruction.co.uk, or book a free consultation at lcclconstruction.co.uk/booking-calendar/free-consultation-call.