Builders in
North London for
Extensions & Renovations
At Allaraj Brothers, we help homeowners throughout North London transform their properties with beautifully crafted home extensions, renovations, loft and basement conversions, and expertly designed kitchens and bathrooms. We also offer a full range of general building services.
Core services built around
the way you want to live
We handle every stage of the process so you don't have to. Everything we do, from initial design to final plumbing, is centered on your vision. Instead of managing multiple contractors, you can trust us to ensure every detail of your home is built for your comfort.
Home Extensions
Single-storey, double-storey, rear and wraparound extensions designed to add space and value to your home.
Property Renovation
Full and partial home renovations, refurbishments and layout improvements delivered by one coordinated building team.
Loft & Basement Conversions
Space-creating loft and basement conversion projects for homeowners who want to maximise the footprint of their property.
Kitchens & Bathrooms
Kitchen installations, bathroom renovations and wet room projects designed to improve daily life and add value to your property.
General Building Services
Repairs, flooring, plastering, decorating, carpentry, joinery, plumbing, heating, electrical and other supporting building works.
Typical residential work
we help with
Focused on North London
and nearby areas
We keep the service-area message clear and local, so the website stays stronger for local SEO and more useful for homeowners looking for a nearby building company.
North London
Residential building and renovation work available across this area.
Barnet
Residential building and renovation work available across this area.
Enfield
Residential building and renovation work available across this area.
Haringey
Residential building and renovation work available across this area.
Waltham Forest
Residential building and renovation work available across this area.
Edgware
Residential building and renovation work available across this area.
Wood Green
Residential building and renovation work available across this area.
Tottenham
Residential building and renovation work available across this area.
A straightforward process
from first call to final handover
Initial Conversation
Tell us about the property, the area and the type of work you need.
Site Visit & Quote
We review the scope and prepare a clear, no-obligation quotation.
Build Planning
We organise the project around the key stages and supporting trades.
Project Delivery
We focus on workmanship, communication and a tidy finish.
What Our Clients Say
“The rear extension and kitchen works were handled professionally from start to finish. Communication stayed clear throughout.”
“We used them for a loft project and internal renovation works. The team kept the job organised and the finish was excellent.”
“Bathroom, plastering and decorating were all coordinated well. It felt much easier dealing with one main building team.”
Questions we hear most often
We mainly cover North London and nearby areas including Barnet, Enfield, Haringey, Waltham Forest, Edgware, Borehamwood and Watford.
Yes. We offer free, no-obligation quotations for extension, renovation, conversion, kitchen, bathroom and general building projects.
No. We take on both larger residential works and smaller building packages, depending on the scope and schedule.
Yes. We can coordinate the core building work together with supporting trades such as plastering, flooring, plumbing, heating, electrics and decorating.
Built around trust, clarity
and useful local service pages
Registered Company
Allaraj Brothers Ltd is listed at Companies House under company number 15144826.
Clear Service Structure
The site focuses on core service pages rather than many thin pages that add little value.
Local Area Focus
The messaging is centred on North London and nearby areas instead of trying to target everywhere at once.
Quote-First Approach
Every key page points back to a clear quote request, which is what most visitors need next.