Top Choice for Double Glazed Windows East Anglia.

Improve and complement your home with a wide range of stylish double glazing options.

Our windows and door scrappage scheme could see you save up to £2,500 just by allowing us to recycle your old ones. Discounts available now to help you get stylish new double glazing at a much reduced cost. 


Rated 4.6/5 from 64 reviews

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East Anglia-based Home Improvements

KLIC Double Glazed Windows.

Whichever style you choose you will have all the functional attributes you would expect from a quality-assured product. Our Casement Windows are manufactured using the Optima Profile 22 System, which comes in several styles and sizes.

All the double glazed windows combine exceptional flexibility with advanced security & thermal performance. We count ourselves amongst the best double-glazing companies. Our windows are of a high standard, and we service all of East Anglia, whether it be Norwich city centre to the outskirts.

The glass itself comes within many of our windows and doors, such as French doors and bi-fold doors.

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What Material are your existing Windows?

The KLIC Window Range

We have many different window styles to suit your needs and a range of different colours so you can pick something perfect for your home.

EurocellRecycle CMYK e x

SAVE BIG when you recycle your old windows & doors with us.

Find out how much your old windows are worth when you enquire online today!


Glazing Options

We only provide a minimum of double glazed units meaning all out windows have a  minimum of Grade A Energy Efficiency. Want even more thermal performance? Ask about our triple glazed A rated windows!


Double Glazed

Our Standard Double Glazing Sealed Units offer exceptional levels of thermal performance achieving a minimum of Grade ‘A’ Energy Efficiency Quality Windows.

ID scaled

Triple Glazed

Our Triple Glazing Sealed Units boost this exceptional thermal performance further by achieving a minimum of ‘A rated’ Energy Efficiency.

GREEN FLUSH WINDOWS installed in east anglia

Benefits of Double Glazing Windows

KLIC Home locking systems are Secured by Design. All components have been purpose designed and selected to ensure the performance of the finished product can surpass all standards laid down for enhanced security and is also durable, long-lasting and pleasing to the eye.

Locking points that secure the window in all four corners and sides of the frame, and an internally glazed design that prevents the glass from being removed from the outside.

Installing KLIC Home ‘A’ energy-efficient windows can significantly improve the sound quality in your home. With high-performance glazing, sound resistance is enhanced and a higher quality of air, noise and light filtration is achieved – ultimately providing you with a more comfortable internal environment.

Our energy-efficient windows cut heat loss through windows and can significantly reduce fuel bills for householders. Just by reducing the running time of your heating system and locking in thermal energy, you can achieve a warmer, healthier home.

Performance Glass Options

We have many different window styles to suit your needs and a range of different colours so you can pick something perfect for your home.

energy standard
comfort plus

Our Windows Colour Range

We have plenty of colours to choose from to ensure that can find something that fits your home!

Strong, Safe & Secure Windows

Easy Clean-Fire Egress Hinges

Lipped for enhanced smooth operation. Easy friction adjustment without metal contact. Restricted hinge options are available to protect the most vulnerable.

Available as standard on every Side Hung Opening Casement.

Customisable Handle Options

Guaranteed warranty for 10 years, available in various colours to complement any window style. Our austenitic 304 stainless steel ergonomic handles are rust-resistant.

5 Standard Handle Options with Monkey Tail Options

Stainless Steel Friction Stays

Available in ferritic 430 or austenitic 304 stainless steel for enhanced corrosion resistance. Durable and weather resistant, tested to 30,000 open cycles.

Reliable Corrosion Resistant Hinges

Multi-Point Locking Systems

Maximum security multi-point locking provides enhanced protection against forced entry. Additional dog bolts improve stability around the entire frame and prevent attack on the hinge side of the window.

Secured by Design Locking as Standard Across Range.

Trickle Vents as Standard

Available in uPVC and aluminium, in a range of colours to match any frame (vent in frame head for flush casement). Provided loose to prevent damage in transit. Complies with latest building regulations.

Trickle Vents Provided Wherever Legally Required.

Accredited All Performance

Superior weather sealing and draught proofing performance, conforming to the exacting standards of the BS-36751 accreditation.

You can be Assured The Elements Will Be Kept Out

Docking System Bolt

Patented bolt into the keep docking system prevents sideways movement of the bolt when under attack

Fully Patented Locking System

Superior Shoot Bolt

Heavy-duty bolts have up to 300 percent greater contact area against competitor shoot bolts.

Industry Leading Shoot Bolts

Durable Hardware

Salt and spray resistant (BSEN1670), cycle tested over 50,000 times for ultimate long term performance.

Will Hold Up Against All The Elements

Our Reviews

Read why our customers loved using KLIC Home Improvements to transform their home!

Bob Lloyd
Bob Lloyd★★★★★
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We recently had new upstair windows fitted to our property. The fitters arrived at 8.30 in the morning and left, having cleared up all the mess at 5.30pm. The guys were very friendly and did an excellent job.
Elizabeth Boydon
Elizabeth Boydon★★★★★
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Process from start to finish was easy and convenient. I put the enquiry in, someone got back to me almost immediately and arranged to come and talk through my needs at a time convenient to me.
Thommy H
Thommy H★★★★★
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Efficient, friendly service. Installation was carried out over two days, fitters were prompt and polite and left no mess! Windows look good and the effect on our home's energy efficiency is already noticeable. Happy to recommend.
Jenny Brightwell
Jenny Brightwell★★★★★
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I had windows and door fitted and they are great. They were unusual sizes but Klic Home improvements were not phased by this. Great job, very efficient and the installer was great, very professional and cleaned up after himself. I would definitely recommend this company
Samuel Frost
Samuel Frost★★★★★
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Great service from start to finish. Salesmen was very knowledgeable and easy to talk to. Kept up to date throughout manufacture of windows. Installation team was top class kept workarea very tidy and made sure job was done right and to our satisfaction.

Our Frequently Asked Questions

Here are some of our frequently asked questions by our customers.

Double glazed windows and doors refer to a type of construction within windows. They consist of two panes of glass as opposed to one, and between the two panes is insulation gas – krypton and argon. These make perfect new windows to replace your old ones for several benefits:

  • Improved Insulation – The insulation gas between the two panes works by having gas that slows the transfer of heat from the inside to the outside, meaning that your house stays warmer as a result. It’s estimated that up to 30% of a household’s heat is lost through your windows during winter – a potential problem with the East Anglian weather. Avoid this by installing double-glazed windows to keep your home warmer.
  • Energy Efficient – Double glazing is a highly recommended home improvement due to how it can save you money through its energy-efficient properties. By trapping your heat inside, you spend less on heating replacing the heat you lose. This can result in reduced bills, and a more comfortable temperature for your home.
  • Noise Reduction – Your new windows and the insulating gas within does not only slow the transfer of heat, but it acts as a barrier against sound. Noise pollution will be dampened when it reaches your window, allowing you to leave your house in peace and comfort.
  • Reduced Condensation – By reducing the moisture of your windows, you can also reduce the amount of mould that appears in your house as a result, alongside other allergens that may affect vulnerable parties.

UPVC Windows refer to the construction within the frames of a window and are made of rigid, durable plastic that is highly resistant to the weather. It does not rot, warp, or corrode. Amongst home improvements, uPVC windows and doors stand out as cost-effective options that offer thermal efficiency and a high level of security.

Yes, and in more ways than one! The Optima system excels in thermal efficiency, giving U-Values as low as 0.9W/m2K and Window Energy Ratings of up to A+. This will lead to less need for central heating and reduce the property’s carbon footprint, making them incredibly effective as far as home improvements go. As fabricators, we believe it’s important to provide a thermally efficient product. That’s why we’re committed to reducing our own carbon footprint, delivering increased efficiency and reduction in our energy consumption. We are also committed to recovering & recycling manufacturing waste & materials generated by end-of-life products.

By using the Optima profile, we can offer new windows that meet the highest standards of security. Our windows and doors are fitted with a high-security multi-point locking system and is internally glazed, preventing a burglar from removing the pane from the outside. The uPVC profile itself is durable and strong, standing tall against uninvited visitors. The Central Eurogroove within the profile gives the sash greater rigidity. Our Window Locking System is Secured by Design as standard with dog bolts to the hinge side of the window and appropriate glass where applicable.

KLIC Home is able to offer our casement window range in a variety of different colours. We offer multiple foil and colour options including our own in-house spraying booth which can ensure all windows doors and ancillary items match perfectly. 

We also offer a wide range of styles, including:

Sash Windows

Casement Windows

Tilt and Turn Windows

French Style Windows

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