From time to time, we are asked questions from our customers, so we publish them here to make it easy for you to find the answer you're looking for...

Of course, if you can't find the answer you need, just pop your question on our contact us page and we'll get back to you as soon as possible.

Can you estimate for roofs that aren't local to you?

Yes, we are mainly based online, so send us the information by post or email, and we will send you the estimate by email.

How long does it take to receive my estimate?

We aim to have the comprehensive list of materials needed for your project with you in 48 - 72 hours, however larger or more complex roofs and sites can take a little longer, but we will let you know if this is the case.

How accurate are your estimates?

This depends on the information supplied, but normally we would expect about 90 - 95% accuracy.

I'm not sure how to measure my roof, where do I start?

We have an example on our "How To" page, Click here!

How do I get my measurements to you?

You can simply post them to us at our office address, or email a scanned copy to us on our customer service email address.

Will you try and change the specification to a different manufacturers products?

No! TW Roof Estimating are completely independent. We will quantify whatever manufacturers products you choose.

I have drawn a sketch of the roof on a piece of paper, can you do a take-off from that?

Of course! It wouldn't be the first time we had done this, as long as all the relevant measurements are included then it’s not a problem. Just take a picture or a scanned copy and email it or post it to us.

Can I use the material quantity list to obtain prices from different suppliers?

Yes you can, the list we supply is in an easy to understand format which makes it simple for suppliers to price.

Can you offer technical help?

Of Course! Just send us a contact form with your query, and we will respond as soon as we can.

How can I be sure that the information I send you will be treated confidentially?

TW Roof Estimating treat all of our customers the way we'd like to be treated. We never discuss or pass on any information to a third party. We also adhere to data protection legislation.

Do you do material take offs for metal sheet roofing, fibre cement sheet roofing or for flat roofs?

Unfortunately we don't at the moment, but this is something we are looking into possibly offering at some point in the future.

Can you do a material quantity take off using satellite imagery?

We have spent a lot of time recently looking into this. We have concluded that there are some areas of the world e.g. USA and Australia, where clearer images are available to work with where it can be done. Currently, there is a company in England who are mapping Greater London and Bristol, where this option will be available soon.
There are also some companies in the USA who offer this service to the UK, for a monthly fee and a charge per drawing, making it expensive to use. We have established a way of working with this imagery which makes it possible to calculate quantities, however we  would only offer this if there was a clear view of your house. We would also advise that it may only be around 80% accurate.

We are still studying this technology and will keep you posted on further developments in the future.



  1. Email us your drawings.
  2. We return your list.
  3. We invoice you.

Easy as 123!