Add the postcode for your project so the results are accurate (you'll need to do this later anyway!)
Extensions / Conversions in BN22 (68)
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
Services & skills
BuilderExtensions / ConversionsProject ManagementLoft ConversionsInsurance Claim SpecialistServices & skills
BuilderExtensions / ConversionsStretched CeilingsBrick / Concrete Structural RepairsConcrete GaragesServices & skills
BuilderExtensions / ConversionsFire and Flood RenovationCladdingStretched Ceilings- P
Services & skills
BuilderExtensions / ConversionsAgricultural BuildingCar PortsPartition Walls Services & skills
BuilderExtensions / ConversionsRefurbishmentsEmergency Builder ServiceCladding- I
Services & skills
BuilderExtensions / ConversionsGeneral BuildingPeriod Property RestorationFoundations Services & skills
BuilderExtensions / ConversionsNew BuildsFoundationsPartition WallsServices & skills
BuilderExtensions / ConversionsGeneral BuildingGarden StudiosWall Tie ReplacementsServices & skills
BuilderExtensions / ConversionsNew BuildsRefurbishmentsSteel FabricationServices & skills
BuilderExtensions / ConversionsPartition WallsGeneral BuildingFoundationsServices & skills
BuilderExtensions / ConversionsBasement / Cellar ConversionsGarage ConversionsRefurbishmentsServices & skills
BuilderExtensions / ConversionsCladdingGarden StudiosRefurbishments
Conversion and extension builders in BN22
Planning a loft conversion, garage makeover or full house extension in BN22? You’re in the right place. Whether you’re adding space for a growing family, upgrading your layout or increasing your home’s value, we can help you find the right tradesperson for the job.
Find extension and conversion builders in BN22
Every builder on Checkatrade passes up to 12 checks before they appear in your search. You can read verified reviews, compare services, and even post your job to get quotes straight to your inbox, all in a few clicks. That’s how we help homeowners like you get a job done right.
What to expect from hiring an extension or conversion builder in BN22
Our checked tradespeople in BN22 cover a wide range of projects, including:
Single or double-storey house extensions
Kitchen and diner extensions
Loft, attic, garage or basement conversions
Garden room extensions
Utility room extensions
Over-garage extensions and side returns
Extension and conversion build costs in BN22
Costs of extensions and conversions vary depending on size, structure and spec, but here's a rough guide:
Extensions:
£36363 on average, with prices typically starting at £21034 up to £60872.
Loft conversions:
£37346 on average, with prices typically starting at £23540 up to £58094.
Garage conversions:
£11075 on average, with prices typically starting at £7322 up to £16880.
Conservatory roof conversions:
£7981 on average, with prices typically starting at £5308 up to £11927.
Need help calculating costs? Use our Job Value Estimator Tool for a bespoke cost estimate.
What to check before you hire:
- Are drawings or planning permissions needed?
- Are they familiar with building regs?
- Is the quote fixed or flexible?
- Does it cover materials and project management?
Most builders will include prep, construction, electrics, plumbing and final finishes in their quote, but always double-check. Timelines range from a few weeks for simple jobs to several months for bigger builds.
Extension and conversion builders in BN22: Homeowners vs renters
Homeowners:
You’re in charge of the project. That means hiring the builder, securing permissions, and paying for the work. You may need:
Planning permission (especially for double-storey builds or changes near boundaries)
Drawings from an architect or structural engineer
Building regs approval
If you’re not sure where to start, speak to a local builder or post your job to get help with the process.
Renters:
You’ll usually need your landlord’s approval to make any big changes. In most cases, your landlord will be the one arranging and paying for structural changes like loft conversions or extensions. That said, it’s worth flagging ideas if you think they’ll improve the property, especially if it means longer tenancies or fewer repairs.
Emergency extension or conversion help in BN22
Extensions and conversions are big projects, but sometimes, things go wrong and need sorting fast. Common urgent issues include:
Leaks in newly converted lofts
Structural cracks or shifting
Faulty electrics or plumbing in newly added rooms
Incomplete work by previous builders
Facing an emergency in BN22? Enter your postcode or post a job to find emergency services in your area.
Find the right extension or conversion specialist in BN22
Looking for a builder to help with:
- Rear house extensions
- Kitchen extensions
- Garage conversions
- Loft or attic conversions
- Garden room builds
- Basement or cellar conversions
- Conservatory roof upgrades
- Utility or porch extensions
Looking for more tradespeople in BN22?
Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in BN22 and check out our latest home improvement guides.
- Builder in BN22
- Wall Tie Replacements in BN22
- Brick Concrete Structural Repairs in BN22
- Concreting in BN22
- General Building in BN22
- New Builds in BN22
- Fire And Flood Renovation in BN22
- Partition Walls in BN22
- Agricultural Building in BN22
- Basement Cellar Conversions in BN22
- Loft Conversions in BN22
- Period Property Restoration in BN22
- Builder in Bn22
- Electrical Contractors in Bn22
- Window Cleaner in Bn22
- Aluminium Windows Installation in Bn22
- Bespoke Windows Doors in Bn22
- Cavity Wall Insulation in Bn22
- Dishwasher Repair in Bn22
- Driveway Cleaning Sealing in Bn22
- Gardener in Bn22
- General Building in Bn22
- General Carpentry in Bn22
- Heritage Property Specialist in Bn22
- Extensions / Conversions in London
- Extensions / Conversions in Birmingham
- Extensions / Conversions in Newcastle Upon Tyne
- Extensions / Conversions in Bristol
- Extensions / Conversions in Leeds
- Extensions / Conversions in Nottingham
- Extensions / Conversions in Greater Manchester
- Extensions / Conversions in Glasgow
- Extensions / Conversions in Sheffield
- Extensions / Conversions in Liverpool
- Extensions / Conversions in Wirral
- Extensions / Conversions in Coventry
- Builder in Bn22
- Electrical Contractors in Bn22
- Window Cleaner in Bn22
- Aluminium Windows Installation in Bn22
- Bespoke Windows Doors in Bn22
- Cavity Wall Insulation in Bn22
- Dishwasher Repair in Bn22
- Driveway Cleaning Sealing in Bn22
- Gardener in Bn22
- General Building in Bn22
- General Carpentry in Bn22
- Heritage Property Specialist in Bn22
- Extensions / Conversions in London
- Extensions / Conversions in Birmingham
- Extensions / Conversions in Newcastle Upon Tyne
- Extensions / Conversions in Bristol
- Extensions / Conversions in Leeds
- Extensions / Conversions in Nottingham
- Extensions / Conversions in Greater Manchester
- Extensions / Conversions in Glasgow
- Extensions / Conversions in Sheffield
- Extensions / Conversions in Liverpool
- Extensions / Conversions in Wirral
- Extensions / Conversions in Coventry