Extensions and renovations

Full end-to-end extensions with a 12-year John Lewis warranty

Our builders

At Home Solutions, we pride ourselves on being the answer to your home and garden improvements. If your home needs a service or a change of look, we’re here to help. 

If you’re looking for an extension or renovation, we also offer this through Opun.

Who are Opun?


In 2018 Opun joined John Lewis. Opun manages large-scale home improvement projects. By using us for your home improvements, you can now benefit from an end-to-end home improvement service, which includes inspiration, design, project management and execution.

If you would prefer to speak to someone directly on the phone about your project, you can also phone Opun on 0800 048 8743.

Are our builders available near you?

Opun is currently available throughout London and the surrounding Home Counties. These are  Berkshire, Buckinghamshire, Essex, Hertfordshire, Kent, Surrey, and Sussex.

Our builder services


Our builders do a variety of extension projects, from conservatories to full multi-storey extensions.

Our team of surveyors and trade partners will work to learn your requirements and complete your extension to your budget. After you get in touch, we’ll arrange for one of our surveyors to come to your property to do an initial survey and understand about your project.

Do I need Planning Permission?

Before carrying out building work, it’s essential that you find out about Planning Permission. If you start a project which needs Planning Permission and you haven’t got it, you can be asked to remove all the work you have done. 

If your property is a listed building, or is within a designated Area of Outstanding Natural Beauty, this can be likely to affect what you can do. 

We can talk to you about Planning Permission during your free consultation, and if needed, we’ll handle the application on your behalf. 


Our blog post shows the five surprising home improvements you don’t need to get planning permission for.

What sets our builders apart?

Find local builders

Each of our trade partners must pass a 20-point accreditation programme, which includes a DBS check. These criteria are the most thorough in the industry.

Throughout your project the work will be inspected on a regular basis by one of our regional managers, and you’ll also have a dedicated Opun assistant to coordinate your project. Each stage of your project will be signed off by yourself and our regional manager during an on-site visit. 

For major projects, including loft conversions, extensions and renovations, our work is  backed up by a 12-year John Lewis warranty on labour and materials.

See some of the projects we’ve done for customers.

How much do our extensions cost and how long will it take?

Extension costs

It’s difficult to pinpoint an exact length of time or cost for your extension. To get an accurate estimate, one of our Opun surveyors will visit you for a free consultation. 

During the consultation they’ll take measurements, discuss the project and offer inspiration and advice to help you get the answers you need before you choose to accept the quote and work starts. 

We pride ourselves on providing a comprehensive and accurate quotation quickly. This means, unless what you want changes, you’ll only pay what you’re quoted and the work will be delivered within the designated time.

Our Opun Services

ExtensionsLoft conversionsBathroom renovations