Contractors London
AstraStone Construction Ltd Registered in England, We specialise in residential and commercial refurbishment and fit-out projects. Our expert design and build service takes care of all the details during every step of the way, so you can take a step back and rely on us.
Looking to design a new home, convert a loft, or extend your house in London? Hire experienced architects from Fantastic Services to transform your living space!
Our team of seasoned professionals excels in construction management, ensuring your project is completed on time, within budget, and to the highest standards. From pre-construction planning to post-construction closeout, we support you every step of the way.
We know that obtaining accurate quotes for a building project can be challenging without the right details. That’s why we offer a comprehensive pre-construction package that goes beyond basic structural plans. For the best fit-out contractors in London, contact us today!
About AstraStone Construction
AstraStone Construction Ltd, strive to give the best service in London and the surrounding areas.
For over 10 years our teams of highly skilled builders and structural engineers have endeavoured to give the greatest quality and commitment possible to our clients.
Since its inception, AstraStone Construction Ltd has consistently aimed to set new benchmarks in the construction industry. Our philosophy is simple yet profound: to offer the best service possible, ensuring every project not only meets but exceeds client expectations. This commitment is not just a goal but a core value that permeates every aspect of our work.
Our Services
Structural Eng. & Calculations
Extensions & Conversions
General Renovations
Building regulations approval
https://www.gov.uk/housing-local-and-community

When you need approval
You must check if you need approval before you construct or change buildings in certain ways.
The Building Regulations 2010 cover the construction and extension of buildings.
You might also need building regulations approval for many alteration projects, including if you plan to:
- replace fuse boxes and connected electrics
- install a bathroom that will involve plumbing
- change electrics near a bath or shower
- put in a fixed air-conditioning system
- replace windows and doors
- replace roof coverings on pitched and flat roofs
- install or replace a heating system
- add extra radiators to a heating system
You could need approval, or to follow special rules, for works not listed here – so always research your particular project.
When you do not need approval
You do not need building regulations approval for some exempt projects, including:
- most repairs, replacements and maintenance work (except heating systems, oil tanks, fuse boxes and glazing units)
- new power and lighting points, or changes to existing circuits (except around baths and showers)
- like-for-like replacements of baths, toilets, basins and sinks
Find out more about common projects and check when you do and do not need approval.
Types of projects we work on:
We specialize in home-improvement projects such as loft conversions, house extensions, new house builders, structural design and calculations, house renovations and offer our services in London..
- Structural design and calculations.
- construction of house extensions.
- Rear single storey house extensions.
- side house extensions.
- wrap around house extensions.
- side return house extensions.
- two storey house extensions.
- Structural design and calculations.
- Dormer loft conversion.
- hip to gable loft conversions.
- L-shaped loft conversion.
- mansard loft conversion.
- velux loft conversion.
- Renovation company London.
- total renovation solutions.
- including kitchen renovation.
- bathroom renovation.
- Our structural engineers produce structural design, structural calculations for your loft conversion, home extension, renovation or new build.
Gallery From our Projects
Why choose us
Architectural design, survey and construction services all in one place
We are your go-to company for architectural design, surveys, project management, and construction services. Whether it’s a loft conversion, home extension, or renovation, we handle everything from start to finish. From the initial design to the final construction, you won’t need to search for any additional services. We streamline the process by being your single point of contact for all your project needs.
Design Stage:
- Building surveys and measurements
- Architectural design services
- Planning application submissions
- Building control applications
- Party wall agreements
- Structural engineering designs and calculations
- Full project management
- Interior design services
Construction Stage:
- Loft conversions and home extensions construction
- Continued project management
- Supply coordination and logistics
- Quality assurance and control
- Coordination with building control and inspections
- Work guarantees
Read More About House Extension:
Our Latest News
Get in Touch, Ready to discuss your project? Contact us today for a free consultation and quote. Our team of structural engineers and builders in London is here to help you every step of the way.
We work At:
Structural Engineering:
NW London
Loft Conversion
NW London
House renovation
NW London



