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Quality uPVC double glazed windows for home-owners and trade in Newport, Cardiff and across South Wales

  • Quality Products
Our windows, sealed units, ironmongery and fixings are of the highest quality (British where possible) available. From the Swish 24/7 window profile to the stainless steel hinges, screws and heavy duty furniture - We don’t look to increase profits by sourcing and fitting cheaper, poorer quality products
  • In-House Fabrication
Unlike the vast majority of double glazing companies, Sonic fabricate our own upvc windows at our state of the art factory. This ensures the high standards set are maintained and checked in-house and we do not have to rely on 3rd part fabricators. This ensures a very fast turn-around of orders for our customers
  • Specialist Installation

All of our fitters have been with us for a long time and are time served tradesmen, employed directly not sub-contracted. This means they work with the same Swish profile day in day out and we can control and check on the very high standards of fitting and finishing insisted upon by us and our customers

  • High Security
Sonic’s windows are accredited with and allowed to use the Secured by Design (SBD) logo. SBD is an endorsement from the Association of Police Chief Officers (ACPO) stating that our locking systems and security levels are of a very high standard and pass testing as the Police preferred specification
  • Guarantee & Peace of Mind
Sonic offer a 10 year ‘no-quibble’ guarantee for all of our window range with the option of an Insurance Backed Guarantee via Quality Assured National Warranties (QANW). Although after 20 years of trading it’s unlikely we won’t be around to service our guarantee, you have the option for a small fee to have the warranty under-written
  • Fire, Safety & Security
Sonic abide by ALL building regulations including, CERTASS, BSI, TRUSTMARK and SBD requirements, every install. Ensuring your window installation not only looks fantastic but is also safe, secure and energy efficient
  • 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)

Sonic Services Ltd upvc Windows and Doors on YouTube