GREG CONSTRUCTION LTD – Solid. On time. Professional.
Expert Basement Conversion Ealing
Transform Your Basement and create new basement into a Functional, Stylish Space
Basement conversion Ealing and London - professional basement systems. Cellar conversion that will increase your living space.
If you’re looking to increase the living space in your home without extending outwards or upwards, a basement conversion in Ealing or Greater London could be the perfect solution. Whether you’re in need of an extra bedroom, a modern home office, a private gym, or a family entertainment room — converting your existing cellar offers limitless possibilities.
At Greg Construction ltd, we specialise in bespoke basement conversions tailored to your lifestyle, budget, and the unique character of your property. We handle everything from planning and design to construction and finishing, ensuring a smooth, stress-free experience.
Why Choose a Basement Conversion?
✔️ Add value Living Space
✔️ Boost Property Value by Up to 30%
✔️ No Need for Costly Extensions or Moving Home
✔️ Ideal for Homes in West London with Limited Land
✔️ Build your completely new basement
✔️ Build your extra space and extra room
✔️ Build your utility room
In a city like London where space is at a premium, basement conversions are increasingly popular — especially in areas like Ealing, Acton, Chiswick, and Fulham, where traditional housing stock often includes large, underused cellars.
Cellar Conversion Services We Offer
We provide end-to-end basement renovation services in Ealing and throughout London, covering every aspect of the basement renovation project :
1. Planning and Design
Our in-house architects and designers will work with you to create a practical and stylish layout. We handle planning permissions, building regulations, party wall agreements, and structural engineering.
2. Waterproofing and Tanking
Damp-proofing is essential. We use advanced waterproofing membranes, sump pumps, and drainage systems to protect your basement space from moisture and flooding.
3. Construction and Structural Work
Our skilled builders handle structural alterations, underpinning, excavation (if needed), and foundation work in full compliance with UK building codes.
4. Electrics, Plumbing and Ventilation
All installations are carried out by certified electricians and plumbers, with modern HVAC systems, lighting schemes, and ventilation solutions.
5. Interior Fit-Out and Decoration
From flooring and staircases to bespoke joinery and decoration, we deliver a high-end finish that matches your vision.
Popular Uses for Basement Conversions
🏠 Additional Bedroom
🎬 Home Cinema
🏋️♂️ Gym or Yoga Studio
🏠 Extra room
🧸 Playroom for Children
💼 Home Office
🍷 Wine Cellar
🎨 Art Studio
🚿 Guest Bathroom or Utility Room
Convert a Basement in Ealing: Local Expertise Matters
We’re based in West London, and our team understands the unique architecture, soil conditions, and planning policies of the Ealing Council and surrounding boroughs.
Whether you live in a Victorian terraced home near Ealing Broadway, a semi-detached property in Hanwell, or a detached house in Northfields — we can help you unlock your home’s hidden potential.
Our Process: How We Work on a Conversion Project
Free Site Visit and Consultation
We’ll assess your property and discuss your goals, budget, and design preferences.Feasibility Study and Planning
We handle all technical aspects — including structural surveys and applications for permissions.Construction and Basement conversion project Management
Full build with a dedicated project manager to keep everything on time and within budget.Final Handover and Sign-Off
Clean handover, building certificate, and optional aftercare support.
Why Choose Ealing Greg Construction ltd?
✅ 10+ Years of Experience in West London
✅ Turnkey Basement Conversion project Specialists
✅ Certified, Insured and Trusted Contractors
✅ Fixed Price Contracts and Transparent Quotes
✅ 100% Compliance with Building Regulations
We don’t just build basements — we build living spaces you’ll love.
Basement - most frequently asked questions
How much does a basement conversion cost in Ealing?
Prices typically start at £20,000 for a basic conversion and go up to £50,000+ for high-spec designs with bathrooms, lighting, and bespoke finishes. We offer free detailed quotes.
Do I need planning permission for a basement conversion in London?
Many conversions fall under Permitted Development, but deeper excavations, external changes, or listed buildings require planning approval. We handle all paperwork for you.
How long does a basement conversion take?
An average project takes 8–12 weeks, depending on complexity. We provide a detailed timeline at the planning stage.
Is basement waterproofing really necessary?
Absolutely. London’s clay soil and high water table require advanced waterproofing to prevent mould, damp, and flooding. We use only approved, warrantied systems.
Can you convert a cellar into a bedroom?
Yes — provided there’s proper ceiling heigh,t (2.4m preferred), natural light, ventilation, and fire safety access. We can make it fully compliant with UK housing standards.
Can you convert a cellar into a family living space or extra room?
Absolutely. Converting a cellar is one of the most effective ways to create extra space in your home.