If your home has beautiful authentic timber windows which are past their best, you might be considering replacing them. You could choose timber windows. But did you know that there are alternatives which are indistinguishable from the real thing?

Timber alternative windows offer a wide range of benefits and are a superb alternative to timber:

  • They require little to no maintenance. This means, whatever colour you choose, they don’t require repainting
  • They will never rot or warp. When timber starts to rot, its efficiency and security can be compromised
  • Timber alternative windows offer superb energy efficiency, helping heat stay in your home throughout the year
  • With high quality locking mechanisms, security is always a priority
  • High quality timber alternatives like ours regularly gain approval in conservation areas
  • A whole range of heritage colours and wood finishes are available

We offer a range of heritage windows that can perform at the same level if not higher than timber.

Oak effect residence 9 windows with a view out from kitchen onto the gardenInfinity

Infinity offer a premium option for your home. With seamless corner welds and smooth joints, these uPVC windows look authentic and will suit any home. Using high-tech manufacturing techniques, these windows have a flawless finish. With high-performing Maco locks, they offer a stylish and secure window that will be an asset to your home. Available in six premium woodgrain foils, you can customise to fit your unique style.

Residence Collection

The prestigious Residence collection is a desirable choice for every home. Residence 9 is the luxury and authentic option that perfectly recreates a traditional flush sash window. Its name comes from the nine-chambered profile which provides excellent insulation, keeping your home comfortable all year round. This contributes to the low values of 0.8 which are amongst some of the lowest possible. These are the perfect windows that create 19th century aesthetics with 21st century performance.


The Heritage range does exactly what its name suggests. A timber alternative window that brings back all the beauty of the windows of the past. A+ rated for efficiency, these windows offer high levels of insulation against draughts. With multi-point locking mechanisms, they surpass the requirements of PAS24 for security. Using a unique drainage system, these windows will protect your home against the elements as well as looking good. With a choice of flush, chamfered and sculptured, you can choose the window that is best for you.

Authentic doesn’t have to mean ineffective

If you live in a listed building or conservation area you will have strict rules over what you can and can’t alter. It’s best to check with your local authority to determine if you can change your windows. If not, secondary glazing could be your best option. This is where a glass panel is placed over your current windows to give you more insulation. With no need to touch your existing windows, your authentic wooden windows can be kept as they are.

Heritage windows specialist

The Emerald Windows team will ensure that your home’s character is maintained when installing your new heritage windows. Our professional and friendly team know heritage windows like the back of their hand. Your new windows will be loved by you for years to come. Find out more about how we can give your home a heritage look.

Areas we serve

Swindon-based family run double glazing installers

With a head office in Swindon, a short trip from the motorway, we are ideally located to offer our services across Wiltshire, Reading, Bath, Bristol, Marlborough, Berkshire, Gloucestershire, Oxfordshire, and other surrounding locations.

Emerald provide and install home improvements in all materials – uPVC, aluminium and traditional timber. No matter what material you choose, you can be sure we’ll provide you consistent quality – our work is always finished to the highest standards, whether you’re installing 2 windows or 20!

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What our customers are saying

We pride ourselves on the hundreds of customer reviews that we have collected over our many years of trading. Why not read some of our testimonials yourself, and see how our customers have rated their experience with our service.

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Replacing patio door with a window

Emerald windows were brilliant. The patio door was removed and replaced with a window. All work was carried out from bricking up the outside to plastering the inside. Great work...

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Lesley B

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Local Family Friendly Company

We worried about choosing a window company. We looked at all the usual national firms but we preferred the feel of a smaller local family run business as the rep...

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Stephanie C

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Very Pleased

Very pleased with the whole process from Mark letting us see and touch the product in the showroom in Swindon (many don't!), to a transparent price breakdown, no "buy now...

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Casey Collins

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Highly Recommended

Highly recommend Emerald Windows and Doors; new Front and back doors fitted yesterday. Cannot praise Mark the Fitter enough, courteous, friendly and very helpful. Top job with attention to detail...

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Michelle Webb

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Emerald Windows – A Quality Product

Emerald windows have just installed a new composite front door to our property. We are very pleased with the product and the installers were polite, professional and have carried out...

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Richard K

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