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Extensions / Conversions in S5 (22)
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BuilderExtensions / ConversionsGarage ConversionsNew Builds
Conversion and extension builders in S5
Planning a loft conversion, garage makeover or full house extension in S5? 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 S5
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 S5
Our checked tradespeople in S5 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 S5
Costs of extensions and conversions vary depending on size, structure and spec, but here's a rough guide:
Extensions:
£29770 on average, with prices typically starting at £17456 up to £48844.
Loft conversions:
£35054 on average, with prices typically starting at £22143 up to £54097.
Garage conversions:
£11005 on average, with prices typically starting at £7765 up to £15737.
Conservatory roof conversions:
£7209 on average, with prices typically starting at £5203 up to £10034.
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 S5: 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 S5
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 S5? Enter your postcode or post a job to find emergency services in your area.
Find the right extension or conversion specialist in S5
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 S5?
Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in S5 and check out our latest home improvement guides.
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- Extensions / Conversions in London
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- Extensions / Conversions in Newcastle Upon Tyne
- Extensions / Conversions in Bristol
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- 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
- 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