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House extensions in Stevenage with architectural support

House extensions are a key business focus. Complete service from start to completion. Experienced team covering multiple building trades.

Modern glass rear house extension lit at twilight

Exceptional qualities

One company managing the project

One experienced team handles every stage, keeping your project organised and simple. 

Free estimates and advice

Get clear costs and practical advice before making decisions about your building project. 

Fully insured and FMB accredited

Work with a properly insured, FMB-accredited building company to ensure you are fully protected. 

Two storey red brick property extension with sliding patio doors

Create the extra room your home needs

A house extension can transform your home when your existing layout no longer provides enough room for cooking, gathering, working or relaxing. Hawkstone Builders Ltd provides a complete service for homeowners, from single-storey extensions and additional kitchen or dining space to new living areas, utility rooms and bedrooms. We handle the structural and building work, using experienced trades and practical advice throughout. If you have existing architectural plans, we can work from them or provide enough room for cooking, gathering, working or relaxing and arrange architectural services where needed.

Our reviews

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Team Hawkstone did a garage-bedroom, and utility room-office conversion. Fab finish, and a great team - courteous, tidy and friendly! Would recommend 100%
Two storey white rendered rear house extension with black window frames

A clear process from plans to completion

Every project starts with a conversation about your requirements, available space and how you want your home to function. We review your plans, discuss the proposed work, and provide a detailed quotation before you agree to the project. Our complete project management approach then keeps the construction organised, with one team overseeing each stage through to completion. We use high-quality building materials and finishes, while keeping communication clear and decisions straightforward.

Why extending can be the smarter move

Creating more space can make everyday life easier without the cost and disruption of moving home. A thoughtfully designed extension can improve the flow between rooms while giving your property the space it needs for modern living. Whether you're enlarging a kitchen, creating a family room or adding another bedroom, the finished space should feel like a natural part of your home. 

 

At Hawkstone Builders Ltd, we undertake domestic extension projects across Hertfordshire and surrounding areas, with careful attention to workmanship and the final details. Contact us today for free quotations.

Rear of brick house featuring large glass bi-fold doors opening to garden

Frequently asked questions

Talk through your house extension ideas with us

Call Hawkstone Builders Ltd to arrange your free estimate.

Contact us

Hawkstone Builders Ltd
Unit 15 Shangri-La Business Park, Todds Green,

Stevenage, SG1 2JE

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Business hours

Monday – Friday: 09:00 - 17:00

Saturday – Sunday: Closed

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HAWKSTONE BUILDERS LTD, registered as a limited company in England and Wales under company number: 07129672.


Registered Company Address: Unit 15 Shangri-La Farm Business Park, Todds Green, Stevenage, Hertfordshire, SG1 2JE.

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