Double Glazing Installers Cardiff

Experience top-tier double glazing installation in Cardiff at Alan Hill Window Systems. We are extremely proud to offer high-quality double glazing doors and windows to residential and commercial customers. With a reputation for our workmanship and premium quality, we are a company second to none.


About Alan Hill Windows

High Performance Double Glazing Cardiff

For almost 30 years, partners Alan Hill and John Knowles have been supplying Tradesmen & homeowners with premium quality double glazing Upvc doors and windows in Cardiff, Caerphilly, and the surrounding areas. Our professional double glazing installers Cardiff can offer high-quality services at a reasonable rate. We pride ourselves on giving friendly, personal service and employ highly qualified surveyors, builders, and fitters to ensure you have total job satisfaction.

We offer the best-performing windows money can buy with Energy ratings of A and C, we all want the best from double glazing installers that’s why our windows stand apart. From styling to performance to saving energy, the advanced design gives you a comfortable, secure, energy-efficient home.

Customer Satisfaction is our number one priority and we are glad to say that we have built an excellent reputation for our workmanship and after-sales service in the Caerphilly and surrounding areas.

Our highly reliable, cost-effective repair service is available for domestic and trade customers. If you have a problem with doors and windows Cardiff, we are here to help. Our highly skilled service engineers are able to repair windows and doors by all manufacturers and can often carry out repairs on the spot.

We also have a wide range of fascia, soffits, and rainwater goods in a range of colours to suit your needs, supply only or supplied and fitted, come visit our trade counter for screws, sealants, ironmongery, and much more.

Professional Double Glazing Installers Cardiff

No matter whether you wish to install ultra-modern conservatories, doors and windows Cardiff, our professional double glazing installers Cardiff can offer high-quality services at reasonable rates. Our well-trained installers keep communicating with our customers throughout the various stages of the installation process. Our professionals can even help you choose the right glazing for your home.

Why Choose Us?

  • Perfectly designed windows and doors which can stand the test of time
  • A splendid array of styles, designs and finishes to choose from
  • FENSA approved installers who provide reliable installations
  • High-quality products and installation services at the most competitive rates
  • Comprehensive guarantee of 10 years on all products and services

Top Quality Doors and Windows Cardiff At Competitive Prices

We always aim at providing our customers with the highest quality products and services at very competitive prices. Enhance the energy efficiency and style of your with top-notch double glazing solutions in Cardiff. Our expert team offers professional installation and a wide range of options to suit your needs. Experience the benefits of double glazing Cardiff for ultimate comfort and savings. We are also well known for our excellent after-sales service.

Whether you need double glazing Cardiff, our wide range of doors, double glazing, windows, and conservatories can perfectly suit your taste and requirements. Our products are not just pleasing to the eye, they’re also very practical, and durable, and require minimal maintenance. Give us a ring on 029 2088 3494 to learn more.

We also offer a 10-year guarantee on all products and a 2-year guarantee on ironmongery.

Our fast and efficient repair service doesn’t incur any call-out charges for any window or door lock failures or misted sealed units. We also take pride in our double glazing installers Cardiff who are considered the finest in the surrounding.

We’re energy-efficient

Due to the rising costs of fuel, most people look to make their houses more energy efficient. That’s why we’re registered with Thermal Ratings Register, Certass. When you get a product-rated window from us you will be given a unique label that will inform you about its energy efficiency.

Your label will display the following information:

  • The rating level of A, B or C
  • The energy rating
  • The window U value
  • The effective heat loss due to air penetration
  • The solar heat
Call us today on: 029 2088 3494

Frequently Asked Questions(FAQ)

Is double glazing worth the cost?

Many homeowners opt for double glazing windows in their property for their different characteristics. Compared to the standard glazings, these are much more heat efficient; these can prevent sound ingress and cause better energy efficiency.

Double glazing is also called insulated thermal glazing. So when it comes to choosing a proper double glazing in Cardiff, you must be careful. Many homeowners come into a dilemma whether it is cost-efficient to install these windows.

To answer this query, we should look at the myriad characteristics of the double glazing windows. These have fantastic R-value, which makes them heat-efficient for years to come. Therefore, you can be assured that these will stay put in their place for a number of years.

Can anyone install double glazing?

There is no reason that would stop you from installing double glazing windows on your own. However, if you wish to install them on your own, ensure following the FENSA Guidelines. Even when you select a double glazing installer in Cardiff, check if they are registered by FENSA. This automatically gives you a product guarantee and a FENSA Certificate.

In addition to the certifications, you also need suitable equipment for double glazing installation. These are vital for a safe installation. If you work with a contractor, ensure they are equipped with all the necessary tools. The FENSA Certificate will also come in handy if you plan to sell the property in future.

How long should doors and windows last?

Double glazing not only enhances your home aesthetics but also makes your property highly heat efficient. However, like every installation in your home, they have a specific time for change and replacement. Though predicting the longevity of doors and windows in Cardiff is a bit challenging, you can be assured of going with the same window for at least 15-20 years.

When it comes to double glazing windows and doors, you have to check their condition occasionally. Installing them is only half the work done. You must inspect them regularly for any slight chances of damage. This will make your window and door last for a longer period.

FREE Quote
Call 029 2088 3494 or complete the form below
Please complete the form below for a FREE no obligation quote.


029 2088 1839

Opening Times

Mon: 08:00 - 16:30

Tues: 08:00 - 16:30

Wed: 08:00 - 16:30

Thurs: 08:00 - 16:30

Fri: 08:00 - 16:30


Alan Hill Window Systems ltd
Unit 1
Caerphilly Business Park
CF83 3ED

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