Builders in Barnet

Looking for reliable builders in Barnet? BBBrotherBuilding specialises in house extensions, loft conversions, kitchen installations, and bathroom renovations across the Barnet borough. We are a Companies House registered limited company with £10 million public liability insurance and a perfect 10/10 Checkatrade rating. Every project is managed by our own team from start to finish.

Operating locally across Barnet, we have extensive experience extending and renovating Victorian terraces, Edwardian semis, 1930s detached and conservation area properties. Whether your property is near Barnet High Street or Old Courthouse, we understand the local architecture perfectly. Parts of Barnet fall within conservation areas where permitted development rights are restricted, requiring full planning applications.

Building project completed by BBBrotherBuilding in Barnet

Our Services in Barnet

Why Barnet Homeowners Choose Us

Ltd Company

Companies House registered #16950486. Full accountability and transparency.

£10M Insurance

£10 million public liability insurance. Complete peace of mind for every project.

Checkatrade 10/10

Vetted, reviewed, and trusted by homeowners across Hertfordshire and North West London.

2-Year Guarantee

Every project backed by our comprehensive 2-year workmanship guarantee.

12 Years Experience

Over a decade of delivering extensions, lofts, and renovations to the highest standard.

Our Work in Barnet

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Extension roofline in Barnet
Kitchen backsplash tiling in Barnet
Bathroom renovation in Barnet

Frequently Asked Questions

Are there planning restrictions for extensions in Barnet conservation areas?
Yes. Parts of Barnet — including Monken Hadley, Chipping Barnet High Street, and areas around the Old Courthouse — are conservation areas where permitted development rights are removed or restricted. You will need a full planning application, and the design must respect the character of the area. We have experience navigating Barnet Council's planning requirements.
What type of extension works best on an Edwardian semi in Barnet?
Edwardian semis in Barnet typically suit a rear extension — either single or double storey — that opens up the kitchen-dining area into the garden. Many homeowners also combine this with a side-return extension to maximise the ground floor. Structural steelwork removes the internal walls while maintaining the property's character.
How much does a loft conversion cost in Barnet?
A dormer loft conversion in Barnet typically costs between £38,000 and £55,000. Hip-to-gable conversions on semi-detached homes cost slightly more at £45,000 to £65,000. The exact price depends on the roof structure, access, and your specification. We provide a detailed fixed-price quotation after your free site survey.
Do you work on 1930s detached properties in Barnet?
Yes. 1930s detached homes are one of the most common property types we work on in Barnet. They typically have good-sized plots that allow for generous rear and side extensions, and the original roof structure usually accommodates a loft conversion well.

Ready to Start Your Project in Barnet?

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