Home Extension Builder

 If you want to add value to your property or just have more space for family then contact us today! With our years of experience we can help turn your house into an amazing dream home.

We offer a free quotation service

Looking for a professional home extension builder?

From a very high level overview, a home extension cost depends on a few factors. First thing would be the size, single storey or double storey is usually the most popular. The we have to look the existing structural set up and see if there are any structural amendments needed.

We then would look at the interior itself, after your consultation with our interior design team, we would look to provide the absolute best finish. Take a look below at one of our many home extension project carried out in Stevenage. 

We are the best in our industry, and we will provide you with a full service from building, electrics, plumbing and decorating. Using on the highest quality materials, we provide the best home extension building services.

You can be confident that your project is in safe hands when working with us. We have over 20 years of experience in this industry so you know that your project is being done by professionals who care about their workmanship. With all of this combined it means that our customers are always happy with their final product which makes us very proud to say! So if you’re looking for a professional home extension builder then look no further

Are you looking for a professional home extension builder?

Our team of experts will provide you with high quality services at affordable prices. We offer full design and build services, so we can take care of everything from start to finish. You won’t find another company that offers such great value for money. We are one of the leading provider of high quality home extensions. We will provide you with a full service from building, electrics, plumbing and decorating. Using on the highest quality materials, we provide the best home extension building services in Hertfordshire. Our team is fully qualified to ensure that your project is completed to exacting standards within budget and on time.

  • Detailed Quotations
  • All Work Guaranteed
  • Electrical & Plumbing Included
  • Structural Amendments Included
  • Fixed Price Policy 
  • We Will Meet Deadlines
  • Transparent Service & Advice
  • Full Assistance With Planning & Drawings

The benefits of getting a home extension are simple, more space more value added to property.

We allow our customers to get involved in the planning and design stages. We only use the highest most long lasting materials. 

We can help you find out how much your home extension could cost, as a local builder we welcome you to offices for discussions. 


All of our projects go through a professional consultation, detailed and communicated with transparency.


We then look to start the design and planning process. Avoiding disruptions during building or work.


Once we are both satisfied we will being our work in building or renovation. Our focus is quality and perfection.

Get a free quotation

Feel free to call us or submit a request if your thinking about hiring a local home extension builder use our form below. Visit us in Stevenage our office which is open to all of our clients for planning, design discussions or a general quote. 

Why Choose Us?

Nationserv is a local builder based in Stevenage. We offer a fixed price quotation promise, ensuring transparency and confidence when using us. From small building repairs to full house builds we offer free no obligation quotes.

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