uPVC Windows, Doors & Conservatories Sheffield

June 2026 Free Upgrade To Triple Glazing offer Terms and Conditions:

1. The “Free Upgrade To Triple Glazing offer” is available on qualifying orders placed between 01.06.26 & 30.06.26 while stocks last.
2. “Free Upgrade To Triple Glazing offer” must be stated in writing on the contract at the point of sale.  Coral cannot be held responsible for claims placed after this time.
3. Code JUNE26 must also be clearly marked on any contract to qualify for this offer.
4. The “Free Upgrade To Triple Glazing offer” applies to standard double-glazed casement windows only (excludes flush sash windows and sash horn casements) in any of the following foiled, grained finishes in our range: Agate Grey, Anthracite Grey, Anthracite Smooth Matt, Black Ash, Black Smooth Matt, Cedar Grey, Chartwell Green, Claystone, Cream, Golden Oak, Grey 004, Grey Aluminium, Honey Oak Super Matt, Irish Oak, Nut Tree, Pepper Oak, Rosewood, Slate Grey or Yakisugu (external frame colour only, inside must be smooth White), manufactured by Coral only & where goods are installed within 12 weeks of order date.
5. The “Free Upgrade To Triple Glazing offer” cannot be applied to conservatory frames.
6. The “Free Upgrade To Triple Glazing offer” does not apply to Smooth White uPVC or White grained uPVC casement windows.
7. The “Free Upgrade To Triple Glazing offer” is an upgrade to our “Standard Triple Glazed Range”, it does not include our CL3 Triple Glazed Range.
8. The “Free Upgrade To Triple Glazing offer” does not apply to tilt & turn windows, uPVC doors, uPVC French doors, composite doors, inline patio doors, Inox doors, Rock Doors, uPVC bi-folding doors, aluminium bi-folding doors, conservatory roofs or V/S windows.
9. The “Free Upgrade To Triple Glazing offer” cannot be used in conjunction with the “50% Off On Selected Items Offer”.
10. There is no minimum order value to qualify for the “Free Upgrade To Triple Glazing offer”.

June 2026 50% Off On Selected Items Offer Terms and Conditions:

1. The “50% Off On Selected Items Offer” is available on qualifying orders placed between 01.06.26 & 30.06.26.
2. “50% Off On Selected Items Offer” must be stated in writing on the contract at the point of sale. Coral cannot be held responsible for claims placed after this time.
3. Code JUNE26 must also be clearly marked on any contract to qualify for this offer.
4. The “50% Off On Selected Items Offer” can be applied to conservatory frames providing they are not included in the listed exclusions below.
5. The “50% Off On Selected Items Offer” does not apply to Inox doors, Rock Doors, hybrid uPVC bi-folding doors, aluminium bi-folding doors, conservatory roofs or Vertical Sliding Sash windows.
6. The “50% Off On Selected Items Offer” offer does not apply to any building works, internal sills, window boards or trims.
7. The “50% Off On Selected Items Offer” cannot be used in conjunction with the “Free Upgrade To Triple Glazing offer”.
8. There is no minimum order value to qualify for the “50% Off On Selected Items Offer”.

Lowest Price Guarantee terms and conditions:

Our price promise has held Coral in good stead with our customers for over 35 years. We will not be beaten on price (please refer to terms and conditions below for further details when comparing to other quotes from other companies), they must have:

1. The specification of the product must be fully sculptured 70mm profile.
2. The styles and sizes must be detailed on a letter headed quotation.
3. Conservatory frames – windows and doors should be of the same quantity, styles and design specification.
4. Conservatory roofs – must be of same design specification.  “Tiled” conservatory roofs must be Ultraroof.
5. Warranties for each of the products must either be the same of better.
6. Have an Insurance Backed Guarantee (where work is covered by FENSA).
7. Have a BSI kitemark for survey and installation.
8. Be FENSA regulated.
9. Manufacture their own products.

It is important to bear in mind that Coral Windows and Conservatories have been in business with continuous trading for over 32 years and we do not take a deposit or stage payments and only ask for payment when the goods are installed. This gives you, our customers 100% peace of mind.

Our CL3 Triple Glazed Range and other triple glazed windows are subject to size restrictions and style limitations due to the weight of the glass – see your representative for details. The maximum size for any triple glazed glass unit is 1.7m2 due to health & safety reasons. Where a required unit size is larger, an A-rated double-glazed unit will be supplied and installed.

“Self-cleaning” glass is not a ‘100% maintenance-free’ product but does offer a reduced need for manual cleaning.

*New windows from Coral could save our customers hundreds of pounds on their heating bills*

You can check both your potential savings on heating costs and your CO2 savings by entering a few simple details into our energy calculator which can be found on our website https://www.coralwindows.co.uk

As an example, a typical customer (living in a semi-detached house which has wooden single glazed windows and mains gas heating) could save approx. £911 on their heating bill over the course of the first 12 months after they had new double-glazed windows installed by Coral Windows (information correct as at 13/10/2023).  Potential savings will vary depending on the information entered into the energy calculator.