Add the postcode for your project so the results are accurate (you'll need to do this later anyway!)
Basement / Cellar Conversions in Lancing (62)
Search results
Describe your job
Give us the details of your job and we'll send it to specialist trades for you
Describe your job
Receive multiple quotes for your job from reviewed and trusted tradespeople
- Sponsored
Services & skills
BuilderBasement / Cellar ConversionsPartition WallsCladdingEmergency Builder Service Services & skills
BuilderBasement / Cellar ConversionsRefurbishmentsEquestrian StableCar PortsServices & skills
BuilderBasement / Cellar ConversionsGarage ConversionsProject ManagementRefurbishments- Sponsored
Services & skills
BuilderBasement / Cellar ConversionsRefurbishmentsFire and Flood RenovationStructural SteelsLatest verified customer review
10.0
“We chose Next Level on a personal family recommendation and we’re not disappointed. All the Next Level personnel were cheerful, pleasant, superb at carrying out excellent work and hardworking. Although they were fitting our own design they were willing to offer changes for our consideration- all of which were of benefit to us. Overall very pleased with the outcome and would recommend this company.”
Services & skills
BuilderBasement / Cellar ConversionsGarage ConversionsFoundationsStructural SteelsServices & skills
BuilderBasement / Cellar ConversionsGeneral BuildingDemolitionSuspended CeilingsServices & skills
BuilderBasement / Cellar ConversionsCladdingExtensions / ConversionsConcrete GaragesServices & skills
BuilderBasement / Cellar ConversionsSuspended CeilingsConcrete GaragesCladdingServices & skills
BuilderBasement / Cellar ConversionsExtensions / ConversionsGarage ConversionsLoft ConversionsServices & skills
BuilderBasement / Cellar ConversionsFoundationsGarden StudiosRefurbishmentsServices & skills
BuilderBasement / Cellar ConversionsInsurance Claim SpecialistAgricultural BuildingDemolitionServices & skills
BuilderBasement / Cellar ConversionsDemolitionConcretingGeneral Building
Top rated Basement / Cellar Conversions in Lancing
10
/10
67 ratings
Our Basement / Cellar Conversions in Lancing are rated an average of 10 out of 10 based on a sample of 67 reviews from customers like you*
*This review aggregate is based on real customer reviews from a randomly selected postcode in this area
Find Companies for Basement and Cellar Conversions in Lancing
Dreaming of converting your cellar or basement into a home office, cinema room, or guest bedroom, but unsure about who to hire and how much it will cost?
Checkatrade can help.
Keep reading for everything you need to know about basement and cellar conversions in Lancing and how to hire a checked and reviewed tradesperson for the job.
Want to jump straight into it? Try our quick request a quote feature and we’ll put you in touch with experienced basement conversion companies covering your local area.
Average cellar conversion costs in Lancing
Expect to pay between £6690 and £24932 , with an average cost of £13309.
Looking for basement excavation prices? Our cost guide to building a basement has all the details.
Top tip: You can also try out our job estimate calculator to get a steer idea on costs for your project.
Do I need planning permission to convert a cellar?
Most cellar conversions don’t need planning permission if you’re converting an existing space.
However, if you’re excavating deeper, changing the external appearance, or creating a new entrance, you’ll likely need permission and Building Regulations approval.
Contact your local authorities as a first port of call.
Is a cellar conversion worth it?
Yes – converting a cellar can add valuable living space and increase the property value. It’s also a great option for homeowners in areas where extending upward or outward isn’t possible.
Are basements legal in the UK?
Basements and cellars are legal in the UK, but the work must comply with UK Building Regulations.
This ensures the conversion meets industry-standard requirements for damp proofing, ventilation, fire safety, and structural safety.
Can you convert a cellar into a bedroom?
Yes - with the right planning and building work, you can convert a cellar into a bedroom, guest suite, or even a self-contained studio.
To meet building regulations, your cellar bedroom will need:
- Proper ventilation and insulation
- A safe fire escape route
- Adequate ceiling height and natural light
- In some cases, planning permission
These checks aren’t just for comfort - they’re essential if you ever decide to sell your home. A compliant conversion can add value and avoid issues during surveys or legal checks.
Why use Checkatrade?
- Fully checked contractors covering your local area
- Insurance always listed
- Easy to compare multiple profiles
- Handy reviews from local customers
- Covered by the Checkatrade Guarantee (T&Cs apply)
Looking for more tradespeople in Lancing?
Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in Lancing and check out our latest home improvement guides.
- Builder in Lancing
- Wall Tie Replacements in Lancing
- Brick Concrete Structural Repairs in Lancing
- Concreting in Lancing
- General Building in Lancing
- New Builds in Lancing
- Fire And Flood Renovation in Lancing
- Partition Walls in Lancing
- Agricultural Building in Lancing
- Extensions Conversions in Lancing
- Loft Conversions in Lancing
- Period Property Restoration in Lancing
- Basement / Cellar Conversions in Manchester
- Basement / Cellar Conversions in London
- Basement / Cellar Conversions in Edinburgh
- Basement / Cellar Conversions in Sheffield
- Basement / Cellar Conversions in Northampton
- Basement / Cellar Conversions in Glasgow
- Basement / Cellar Conversions in Leeds
- Basement / Cellar Conversions in Nottingham
- Basement / Cellar Conversions in Derby
- Basement / Cellar Conversions in Altrincham
- Basement / Cellar Conversions in Birmingham
- Basement / Cellar Conversions in Stockport
- Basement / Cellar Conversions in Manchester
- Basement / Cellar Conversions in London
- Basement / Cellar Conversions in Edinburgh
- Basement / Cellar Conversions in Sheffield
- Basement / Cellar Conversions in Northampton
- Basement / Cellar Conversions in Glasgow
- Basement / Cellar Conversions in Leeds
- Basement / Cellar Conversions in Nottingham
- Basement / Cellar Conversions in Derby
- Basement / Cellar Conversions in Altrincham
- Basement / Cellar Conversions in Birmingham
- Basement / Cellar Conversions in Stockport