Frequently Asked Questions

If you've got questions, we've got answers!

Yes all our windows are as standard, for your security and peace of mind.

Yes. products fitted by Sonic Services come with a comprehensive guarantee.

Yes, as a standard we fit a C-Rated window, but you also have the option to increase to A-Rated windows.

We have your windows manufactured within 2-3 weeks of an order, we usually start fitting your products in the 3rd week after order.

Sonic Services offer a contemporary colour range to match every style home.

Sonic Services is proud to be registered as a Secured by Design (SBD) company, with the accreditation reflecting the high quality of our windows, doors and conservatories. This accreditation means our customers and homeowners have the extra security and peace of mind in the quality of our product.


No we do not charge anything for a quote, our quotes are free!


An experienced member of the team will come out at a convenient time for you. We will then measure either for windows, doors and conservatory depending on your requirements.

The measurements then come back to our head office where they will be checked over and a quote will be created. This will be provided to you normally within a maximum of three working days of the measurements being taken.


We will place your order and communicate with you to discuss a convenient date for installing your new windows, doors and/or conservatory. We will advise you of an approximate timescale for completing the installation.


  • Protection of deposit taken – in line with the insurance company’s policy wording
  • A 10 year guarantee covering completed window and door installations
  • At a minimum, an offer of an insurance policy to cover the 10 year guarantee, should the certass registered contractor cease to trade
  • An easy way of registering your replacement windows and doors with your Local Authority at no cost to you

Looking for a free, no obligation quotation? Contact Sonic today and see how much you could save.

Contact UsGet a Free Quote
  • Call Newport

01633 462277

  • Call Cardiff

029 2050 1778

  • Call Crumlin

01495 246 313

Special Winter Offer

Save hundreds of £££'s every year!

This winter Sonic are offering South wales home-owners environmentally friendly 'A' rated energy saving windows for the same price as 'C' rated windows! Reduce your heating bills by up to £4-£500 per year (Estimated annual energy saving of £461 per household when fitting with Swish 24/7 Energy Saving Windows)

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