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HBHartwell Build Call now
Building or extensions · North London
Extensions and lofts, built with care.
Family building firm in North London. Kitchen extensions, loft conversions and refurbishments, managed from first sketch to final clean.
- Family run since 2011
- Fully insured
- Written contracts
- References on request
Our services
Rear extensions
Kitchen and living space, done to plan.
Loft conversions
Dormers and roof lights, extra bedrooms.
Refurbishments
Whole-house or one room.
Kitchens and bathrooms
Fitted by our own team.
Structural work
Steels, knock-throughs, openings.
Project management
One point of contact, start to finish.
Before and after
Drag the handle
Recent work
North London
What customers say
5.0 from 57 reviewsKitchen extension finished a week early. Same foreman every day, no surprises on the invoice.
Hartwell handled planning, building control and the party wall for us. We just picked tiles.
Loft done in eight weeks with a toddler in the house. They kept the dust where it belonged.
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Areas we cover
- Finchley
- Barnet
- Enfield
- Muswell Hill
- Highgate
Somewhere nearby? Ask, we probably cover it.
Questions
Do you handle planning and building control?
Yes, we manage both with your architect.
How long does an extension take?
Typically 10 to 14 weeks depending on size.
Do you give a fixed price?
Yes, a written quote with a schedule of works.
Get in touch
Tell us what you need and we'll come back with a price.
020 0000 0000
hello@example.co.uk