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Extensions / Conversions in Northfield (56)
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Top rated Extensions / Conversions in Northfield
10
/10
108 ratings
Our Extensions / Conversions in Northfield are rated an average of 10 out of 10 based on a sample of 108 reviews from customers like you*
*This review aggregate is based on real customer reviews from a randomly selected postcode in this area
Conversion and extension builders in Northfield
Planning a loft conversion, garage makeover or full house extension in Northfield? 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 Northfield
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 Northfield
Our checked tradespeople in Northfield 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 Northfield
Costs of extensions and conversions vary depending on size, structure and spec, but here's a rough guide:
Extensions:
£30700 on average, with prices typically starting at £19641 up to £47467.
Loft conversions:
£35371 on average, with prices typically starting at £23394 up to £53104.
Garage conversions:
£10253 on average, with prices typically starting at £7292 up to £14444.
Conservatory roof conversions:
£7742 on average, with prices typically starting at £5684 up to £10499.
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 Northfield: 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 Northfield
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 Northfield? Enter your postcode or post a job to find emergency services in your area.
Find the right extension or conversion specialist in Northfield
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 Northfield?
Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in Northfield and check out our latest home improvement guides.
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