Swindon’s Window and Door Specialist. 

Local independent supplier & installer of Double Glazed/ UPVC Windows & Composite Doors.

Covering Swindon, Cirencester, Marlborough, Chippenham & Everywhere in between.

45 Years Experience

We have over 45 Years experience working in the windows and door industry so you can feel confident you will receive the best products and a great service.


No Sales Gimmicks

We are fully transparent with pricing. We don’t use sales gimmicks or pressure selling, we simply give you the price for the items you request.

High Security

Our Doors and Windows are made with high quality materials providing excellent durability while keeping your property safe.

Energy Efficient

Energy efficient Double Glazed windows will save you money and can reduce the energy you need to heat your home by up to 20% and reduce your carbon footprint.


10 Year Guarantee

We are so confident with the quality of our work that we offer a 10 year guarantee. All our window & Door installs are covered by a full comprehensive insurance backed ten year guarantee.

Accredited & Approved

We are CERTASS and CPA Approved Craftsman, so you know you are dealing with a reputable company that offers you a professional service and guarantees their work for 10 years.

Tilt and turn window white uPVC
UPVC windows cream on red brick wall
Anthracite grey flush double glazed window

After new windows?

If you are looking to get some new windows, you may be trying to decide which is the most suitable for you and your property. As specialists in double, triple glazing and laminate Windows, we can give you great advice on the most suitable.

Here is a quick summary of the main differences.
Double glazing – 2 panes of glass, with good energy efficiency.
Tripe glazing – 3 panes of glass, noise reduction and very good energy efficiency
Laminated Glass Windows – Mainly for reduction in noise so suitable for people who live on main roads or near railway lines or airports for example.

It should be noted that we specialise in types of windows and we can provide these in the colour and style of your choice.  If you are looking for window designs and ideas, then please view our gallery.

tilt turn window
wooden windows replaced by cream UPVC wooden-slat building
inside view of double glazed white windows 3 storey house

Which type of window is right for you?

Prior to simply buying new windows, consider the following:
Energy efficiency and heat retention – Although renowned as being better when it comes to retaining heat, the difference between triple and double glazing is negligible these days. With most people finding that new double glazing is sufficient.

Noise level: If you live in a noisy area such as next to a busy road, then laminate windows may be a better choice, as they will help to reduce noise transmission.

All round use – Double glazing is often seen as the best choice for most people. It offers great heat retention and is more cost effective than triple glazing.

If you are struggling to decide then please feel free to get in touch and let us give you free impartial advice

Looking for a new door?

These days there are great choices when it comes to front doors, not just with the colour and style, but also with the materials.

Composite and uPVC are the most popular materials used for front doors, but there are some key differences between the two.
Composite doors are made from a combination of materials, you have an insulated core composite door for energy efficiency or a solid core door. Both doors are called GRP doors
(Glass Reinforced Plastic). This makes them very strong and durable, and very good at insulating against heat and cold.

Both uPVC and Composite doors are available in a wide range of colours and styles, and at Harlequin Windows of Swindon, we pride ourselves on being able to find the ideal door for you. Ensuring you have the door that perfectly complements your home.  If you are thinking of getting a new door and looking for some ideas, please view our door gallery.  Alternatively you can find our more information about all the doors we can supply here.

Anthracite grey front door with side panel

Which type of door is right for you?

If you are looking for a strong, durable, and well-insulated door, then a composite door is a good choice. However, composite doors are more expensive of the two.
If you are on a budget, then a uPVC door may be a better choice.  But note, when it comes to uPVC, the style options are more restricted than composite doors.

The front door is the gateway to your home. And we often find that when people sell their home, it is one item that they look to replace, as it gives a great first impression to potential buyers when they are faced with a new solid looking stylish door.

Ultimately, the best way to decide which type of door is right for you is to weigh the pros and cons of each option and consider your own needs and budget.

At Harlequin windows, we pride ourselves at being to help and offer great advice so please feel free to contact us.

Harlequin Windows is an Introducer Appointed Representative (Financial Services Register No. 957813) of Phoenix Financial Consultants Limited (Phoenix). Phoenix is a credit broker, not a lender. Phoenix is authorised and regulated by the Financial Conduct Authority (FRN: 539195), and offers finance from its panel of lenders. All finance subject to status and credit checks.

We dont just sell Double Glazed Windows

We offer a wide range of products and services and can show you lots of options at a free consultation.

Casement Windows

Flush Windows

Tilt & Turn Windows

Bow / BAY Windows

Aluminium Windows

Sliding Doors

UPVC Doors

Composite Doors

Aluminium Doors

Bi-Fold Doors

French Doors

Patio Doors

Conservatory Refurbishments

Roof Lanterns

Conservatory Roofs

Integral Blinds

New sash Windows by Harlequin Windows

Choose from many styles and colours of windows and doors

Increase the value of your property and decrease the bills!

We only use the highest performing windows and doors.
Affordable, secure weatherproof, low maintenance windows and doors with excellent thermal and sound insulation. We offer Double and Triple Glazed windows in a wide variety of colours and styles, all with a 10 year guarantee.