Call us today on: 0845 900 3899

Trade Partners

Trade Discounts with A 10 Day Lead Time

Our secondary glazing products are hand crafted in house

Granada trade customers are the lifeblood of our business, enjoying a wealth of benefits and support. Our secondary glazed units are manufactured in-house at our 40,000 square feet manufacturing facility.

We understand that support materials, installation videos, technical guidance, display samples and excellent response rates are just as important as a competitive price and a great product portfolio.

At our Dinnington head office we provide up-to-the-minute product training and technical backup, to ensure you have everything you need to provide the highest standards of service. Our technical team can also visit you on location to provide installation training.

We understand that our collective reputations rely on the quality of our products and the in-depth technical back-up we provide to those installing them.

As a result, all our products are extensively tested, carefully assembled and backed-up with a full five year warranty.

Our focus on excellent product quality also led us to hold significant levels of stock, making it possible for us to provide a fast nationwide delivery service, without rushing orders or compromising our renowned attention to detail.

Standard frames can be manufactured and delivered within ten working days. We supply the whole of the UK, where most UK postcodes will receive free delivery.

Trade Customers Receive:

  • Competitive Trade Discounts
  • 10 Day Lead Time
  • On Site, Technical Training
  • Regional Account Manager
  • Marketing Support
  • Product Training
  • No Minimum Order Requirement
  • Free Delivery (most UK postcodes)
  • Access to Full Product Range
  • Product Samples

The benefits

Customer Choice

We offer a wide range of options and can provide bespoke solutions, with installation advice, to give your sales teams the best possible support.


The beauty of secondary glazing is it’s simplicity. Easy to install, maintain and add value to customer homes.

Interior Fitting

Ideal for winter projects, secondary glazing can be installed away from the elements, face-fixed or reveal-fixed, to suit customer preference.


Because we are UK-based, our turnaround speeds are second-to-none. Access to fixings, materials, options and advice are all available to our approved partners.


Our products provide maximum benefits and years of trouble-free service, specified and designed for thermal and sound insulation, additional security and condensation control.


We create the highest quality window frames in aluminium, plus energy-efficient glass to stand the test of time and keep the maximum amount of heat inside the customer’s property.

Why Partner With Granada?

We forego minimum order requirements and have our own in-house transportation to ensure our products are handled with care and efficiency.

If you are looking for a great partner to help you expand your operation, Granada is the ideal choice.

Every year we pass on thousands of sales enquiries from homeowners looking to take advantage of the excellent benefits secondary glazing provides.

With all our secondary glazing products little mess and no need to endure working outside in the colder months, also making them popular with fabricators and installers throughout the UK.

Our trade customers install secondary glazing in a wide variety of property styles. Alongside residential installation we also support trade/commercial installations. Our trade customers often install secondary glazing within healthcare, hospitality, education, hotels and leisure sectors.

Secondary Glazing view from outside
Large hinged units
Arched Secondary Glazing
Discreet Secondary Glazing
Face fixed Secondary Glazing
Residential Secondary Glazing
Secondary Glazing Leeds Post Ofiice

Our Trade Partner Products

All windows are supplied fully assembled and ready to install. Units comprise of an aluminium outer frame joined to a seasoned hardwood timber surround. Our products are supplied with a 10 day lead time and a 5 year warranty on frames and glazing and a two year warranty on moving parts.

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Hotels secondary glazing

Secondary Glazing for Hotels – Good Night Guarantee

Call us today on: 0845 900 3899 A national hotel chain has installed Granada’s acoustic secondary glazing to guarantee a good night’s sleep and decrease noise levels by up to 54 decibels. As traffic on the UK’s roads increases so does the number of complaints hotels...
Secondary Glazing Bay Window

Cold Bay Window

Call us today on: 0845 900 3899 Timber windows give a property, charm and character. Over time they can leak vital heat, for the winter months, this can cause a room to feel cold and also increase energy bills. A solution to this is to fit secondary glazing which can...
Lady with Secondary Glazed Windows

Lyndhurst Road, Sheffield

Call us today on: 0845 900 3899 "The condensation issues that I’ve been putting up with for 28 years have finally been resolved. You can’t fail to notice the noise reduction either — our new secondary glazing provides a feeling of quiet and calmness." Diane Hale,...