The free and easy way to find out how much you should be paying for major home improvements

Out To Tender is here to help you answer the common questions you might have when you are planning a major home improvement project. If you are planning a Loft Conversion, House Extension or Garage Conversion, we are here to help you decide what you need and what it should cost you before you speak to any builders.

Here’s how it works

1. Do your research

Having a clear idea of what you want really helps you get an accurate guide price.

2. Build your project details

Add a few details of what you are looking for in your project, things like how many bedrooms or bathrooms.

3. Get your guide price

Our calculators then work out what you should expect to pay a builder to carry out the work.

Let’s help you find out what you should be paying?

Get started with a few simple questions and get your guide prices in less than 2 minutes!

House Extension Cost Calculator

Need extra space and not sure if you can afford it? We can help.


Loft Conversion Cost Calculator

How much should it cost to transform your home? Find out in 2 minutes.


Garage Conversion Cost Calculator

Find out how much it will cost to transform that unused garage?


Confused about where to start with your project?

We have a wide range of guides to help you with planning questions for a range of projects.


What type of loft conversion would suit your existing home?

Find out more about the different types of loft conversions you can choose from in our Advice Centre.

Read More

Are you a builder?

Find out more about joining our platform today. 

Read More

What our customers think

  • Quick and easy and the estimated cost was spot on what the builder finally quoted me. 
    Mr Adam Fuller
  • “I spent ages researching costs to see if I could even afford a loft conversion, then I found Out To Tender. Thank you!”
    Mrs Lisa Pearce
    Grays, Essex

Try our Cost Calculators

Get your free guide price in less than 2 minutes, and be confident when you speak to your builder.