
House Extensions
Transform your home with a professionally built house extension.
We specialise in rear extensions, side return extensions, wraparound extensions and double-storey extensions, delivering exceptional craftsmanship from start to finish.
FULLY INSURED
FIXED QUOTATIONS
RELIABLE
HIGH QUALITY

House extension in Harrow

Rear Extension in Pinner

Loft Conversion in Rayners Lane

James & Sarah, Stanmore
"N&D Contractors completed our rear extension and we couldn't be happier with the result. They kept the site tidy and delivered exactly what they promised.
The quality of the finish exceeded our expectations."
Michael T., Richmond
"I used N&D Contractors for a kitchen extension and the whole process was straightforward from start to finish. Communication was excellent, the workmanship was top quality and the project stayed on budget.
Would happily recommend them to friends and family."
Priya & Raj, Barnet
"After getting several quotes, we chose N&D Contractors and it was definitely the right decision. The team were professional, hardworking and always willing to answer our questions.
Our new extension has completely transformed the way we use our home."
OUR PROCESS
1. Free Consultation
Site visit and discussion.
2. Detailed Quotation
Clear breakdown of costs.
3. Construction
Professional project delivery.
4. Completion
Final inspection and handover.
Understand The Different types of Extensions in London

Rear Extensions
Steel beams may be required to support the structure, especially in large or multi-story extensions. Steel is strong and can allow for open-plan living spaces with minimal structural support.

Loft Conversions
While not technically extensions, loft conversions are a common way to add extra rooms and space to London properties. They involve converting the attic into usable living areas, such as bedrooms, offices, or playrooms.

Side Extension
Side extensions are built along the side of the house, typically extending into a driveway or garden area. They can be used to expand living areas or create additional bedrooms.

Basement Extensions
In central London, where space is at a premium, basement extensions are popular. These involve excavating below ground to create additional living space, such as bedrooms, gyms, or home theatres.

Wraparound Extensions
Wraparound extensions combine rear and side extensions to maximise space and create a cohesive, open living area.

Conservatories and Orangeries
These glass extensions are primarily used for creating light-filled spaces that connect to the garden. They are often used for dining rooms, lounges, or cosy reading nooks.
