Your Local Building, Roofing and Damp Proofing Specialists

Welcome to Thames Valley Building. We are an experienced building company based in Thames Valley. If you are looking for an extension, a roof or any general building work then please get in touch. We offer a wide range of services to the Thames Valley community. Having an extension built is a massive undertaking for you, the homeowner. For a worry free experience, talk to Thames Valley today. We have many years experience and hundreds of satisfied customers. All of our work is fully guaranteed and is carried out by our trained professionals. Customer satisfaction is key to our business so we make 100% sure that all your requirements are met and you are completely happy before final payment.  

For a FREE, no obligation quote call Thames Valley Building today on 0118 963 9438


Why Choose Us?

  • 5 Star Reviews
  • Bespoke Design
  • All Works Guarantee
  • 30 Years Experience
  • Trusted & Local
  • High Quality at Great Value
  • No Pushy Salesmen
  • Independently Checked

We won't be beaten on price

Like for like quotes available

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20 year guarantee

We also offer a 10 year insurance backed guarantee.

fully trained staff

Fully Qualified Staff

Fully trained and ready to create amazing things for your home.

free quotes

Free, No Obligation Quotes

Like for like quotes available. We won't be beaten on price

fully insured

Fully insured

Public liability limit of indemnity £5 million

Find out what our customers have to say

What happens next?

Call Thames Valley Building on 0118 963 9438.

Alternatively, you can book a quote online by completing our contact form.

Once you have submitted the form, one of our expert builders will be in touch with you to discuss your problems within 24 hours.

Your free, no obligation building quote will typically only take between 30 minutes to 1 hour.

Three Easy Steps

Arrange a
free visit

No Obligation. Upload a photo of your existing space that you require developed

Design Ideas & Quotes

Creative ideas cost nothing. We will also provide a tailored estimate during the visit

Build and Guarantees

We get building and finish your new area. All with our work and product guarantee

DPC Injections


We respect your property and belongings and take pride in ensuring a clean and habitable working environment for our customers.

Damp Proofing


The provision of a clear specification of works ensures both we and the customer understands what is expected from the outset.
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We agree realistic, suitable and appropriate timescales that work with our customers' schedules to ensure that we complete on time.

Damp Proofing London


We listen to our customers. Our trades people have many years’ experience and our directors visit sites regularly to maintain our brand and vision.

Get in touch for a quote