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Double Glazing

Are you thinking of investing in double or triple glazing? Look no further than Trust A Trader, where we will help you to find competitive quotes from trusted local double glazing companies.

Trusted Double Glazing Experts

Every year, our windows cost us hundreds of pounds which we lose through heat loss. Double or triple glazing your windows offers better insulation, reduced noise pollution and increased property value.

From timber windows and aluminium windows to the more traditional UPVC window, you can get double-glazed windows in a range of colours and styles to suit your home. So whether you were planning some home improvements or simply looking for replacement windows, you can ensure they match your desired style.

Here is a selection of reliable Double Glazing companies located across the United Kingdom. If you're looking for local Double Glazing near to you, please enter your location into the form field above to refine your search.

  • Double Glazing in Romford. Covering Essex, Hertfordshire, London and Kent.

    Glazewise Ltd is a reliable and professional company with over 25 years' experience in the trade. We are based in Romford and cover Essex,...

    135 reviews / 4.95 out of 5

    Extremely happy with my new windows and door! Both sales rep and fitters were great! Highly recommended! Thank you ☺️

    Romford
    Essex
    RM2 6PS

  • Double Glazing in Liverpool. Covering Liverpool, West Lancs and Cheshire

    When looking for a double-glazing company in Liverpool it is essential that you find one you can trust to offer a high quality, guaranteed...

    52 reviews / 4.99 out of 5

    Very pleasant individuals who carried out the work in a professional, efficient manner. They arrived at the arranged time and when finished left...

    Liverpool
    Merseyside
    L23 9TD

  • Double Glazing in Coatbridge. Covering Glasgow Falkirk Edinburgh

    When looking for a double glazing company in Lanarkshire it is essential you find one you can trust to offer a high-quality, guaranteed service....

    7 reviews / 4.98 out of 5

    Very happy with the work carried out in our home. Windows fitted in a bedroom and bathroom. Great communication and left everything clean and tidy.

    Coatbridge
    ML5 3PZ

  • Double Glazing in Walsall. Covering all areas of the West Midlands.

    At Castle Windows we have over 30 years' experience in manufacturing windows, doors, porches and conservatories.We take genuine pride in...

    576 reviews / 4.91 out of 5

    Professional from initial enquiry, quote was clear. Agreed a date for installation arrived on time windows are perfect absolutely delighted.

    Walsall
    West Midlands
    WS3 2XQ

  • Double Glazing in Bristol. Covering Bristol and the Surrounding Areas

    When looking for a double-glazing company it is essential that you find one you can trust to offer a high quality, guaranteed service. Based in...

    6 reviews / 5.0 out of 5

    Matt and his team have replaced all our windows, fitted a new front door, and installed bifold doors for us. They worked around other ongoing...

    Bristol
    Gloucestershire
    BS15 4XG

Trusted Double Glazing Specialists in the following locations

Vetted and Accredited

At TrustATrader, we are local tradesmen at heart and, despite our ever-growing list of registered tradespeople, we want to keep that element of trust between our traders, our customers and us. In order to do this, we make sure that all of the traders listed within our online directory are appropriately qualified, accredited and insured to undertake the work that is on offer. It’s quite simple: if we wouldn’t employ a trader to do work within our own homes, we wouldn’t expect you to employ them either.

Reviewed

Our rating system is designed to allow genuine customers to give their honest opinion of their experience with their trader, on categories such as punctuality, cleanliness, value and quality. With the opportunity to add a written review, our rating system gives you an overall score of up to five stars.

Have you ever wondered why you don’t find traders on Trust A Trader who only have one, two or even three stars? That’s because our standards are high. We only allow the best traders to join our family. In the unlikely event that a customer is unhappy with the service that they received from one of our traders, we will do one of two things: provide a mediation service to help both parties to reach a satisfactory outcome; or, if that fails, we will remove the trader in question from our website. It’ simple, really: if our customers aren’t satisfied, nor are we.

Our average rating for Double Glazing

4.99 - 4.99 out of 5 from 19588 reviews

  • Cotswold Glass and Glazing Ltd, Broadway

    5 out of 5.0

    "We had complete replacement of all our windows and doors in our new house, we’d used Cotswold Glass and Glazing at our..."

    Robin Ray on 2nd August 2026

  • AW Windows Ltd (Luton), Maulden

    5 out of 5.0

    "Andy and his mate worked very hard, were very friendly and helpful. We are so pleased that we decided to opt for a bow..."

    Steve Farmer on 2nd August 2026

  • Advanced Glazing Systems Ltd, Upminster

    5 out of 5.0

    "I can’t recommend this company enough. The care and commitment was excellent, the installers were punctual, polite and..."

    Susan Silk on 2nd August 2026

  • Apex Windows Ltd, Luton

    5 out of 5.0

    "Damon and Corbin polite, respectful and I couldn't fault them at all. Thanks so much for a great job done."

    Jennifer Adams on 31st July 2026

  • Castle Windows Midlands Ltd, Walsall

    5 out of 5.0

    "Would recommend, whole experience was excellent"

    Nigel Drinkwater on 31st July 2026

Other services relating to Double Glazing

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Information About Double Glazing

The term “double glazing” is really a catch-all term for all energy-efficient windows. There are, in fact, many double glazing manufacturers, producing different types of double glazing. Primary glazing is a term that refers to the original window in a property – usually an older property- which has a single pane of glass. Some houses are under conservation restrictions, which mean that these windows can’t be removed and replaced for double glazed windows. However, secondary glazing can be used, to increase a window’s quality and energy efficiency, without changing a home’s original features. Secondary glazing is a form of double glazing that is perfect for homes with feature windows – bringing the many benefits of double glazing, without impacting on the property’s heritage.

  • Triple glazing adds a third layer of glass to create two insulating pockets of air between the panes. This adds even more protection from sound and the elements. This is more prevalent in cities, where there is heavy traffic pollution, or countries which experience more extreme weather. Triple Glazing is, inevitably, more expensive than double glazing, and is not generally needed in your average, suburban house in the UK.
  • Standard double glazing is the replacement of existing windows and doors to offer additional insulation and energy efficiency. There are a range of styles, materials and colours available, so home owners have the opportunity to choose double glazed front doors and windows that meet their needs on function as well as aesthetics.

If you are unsure which type of double glazing will best meet your needs, feel free to call one of the specialists listed in our directory; they will happy to offer you no-obligation advice to help you to get the best deal for your needs and budget.

Help & advice for Double Glazing

Are you a DIY fanatic? Or maybe you are a first-time home-owner and looking for top tips and advice for taking care of your property. Follow us on Facebook or Twitter to stay up to date with the latest news and advice from TrustATrader.com.

Qualifications for Double Glazing

All our traders are vetted before they become a member. Many of our traders have certain qualifications/associations to help meet our high standards. Here are some these in relation to Double Glazing.

DGCOS (Double Glazing & Conservatory Ombudsman Scheme)

GGF - Glass and Glazing Federation

FENSA

Certass Glazing Scheme

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