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Three counties replacement double glazing windows and doors


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0% Deposit and Finance

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10 Year Guarantee

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Made in the UK

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1000+ Checkatrade Reviews

Our Accreditations: Why Choose Three Counties?

Here at Three Counties we’re committed to providing our customers with industry leading products, dedicated, friendly and professional customer services, all combined with total value for money. As part of our commitment to ongoing customer support and service we are members of the following industry bodies:

  • Three Counties - Fensa registered

    FENSA Registered Company

    FENSA stands for the Fenestration Self-Assessment Scheme. Following Government encouragement, FENSA has been set up by the Glass and Glazing Federation (GGF) and other industry bodies in response to Building Regulations for double glazing companies in England and Wales.

    When replacing windows and doors, homeowners must comply with energy and thermal performance standards and ensure they get a certificate from FENSA or Local Authority Building Control to verify that their home improvements comply. FENSA enables companies that install replacement windows and doors to self-certify compliance under these Building Regulations without the need for a separate assessment from Building Control. Companies in the FENSA scheme, like us at Three Counties Ltd will provide you with a certificate confirming that their windows comply with the new regulations.

    Choosing a FENSA registered supplier for your double glazing home improvements gives you peace of mind. As a FENSA registered member, here at Three Counties Ltd we have made a commitment to compliance with the new regulations and offer deposit protection insurance and insurance-backed guarantees.

  • Three Counties - Member of the Glass and Glazing Federation


    The Glass and Glazing Federation (GGF) represents companies who make, supply or fit, glass and glazing products in the UK and internationally.

    Being the industry authority, the GGF promotes best practice and sets the highest technical and health & safety standards. The Federation is also the voice of the industry in local and national politics helping shape and influence policy and legislation.

    As well as offering an array of benefits to its members, the GGF guides and protects homeowners when buying glass or glazing products and services.

    Visit GGF Consumer Code of Practice for more information

  • Three Counties - Trustmark registered double glazing company

    TrustMark Registered

    Three Counties Ltd, Camberley are a TrustMark registered double glazing and triple glazing company ensuring we meet the highest professional installation standards. Our technical skills have been independently checked by a reputable organisation and our quality of work is constantly monitored to ensure complete customer satisfaction and total customer peace of mind.

    TrustMark is a government backed organisation designed to help consumers find reputable and trustworthy tradesmen. This means, if you use a TrustMark registered double glazing company you can be confident of a professional installation. TrustMark is a not for profit organisation, licensed by Government and supported by consumer protection groups.

  • Three Counties - Member of Checkatrade with high client ratings

    Checkatrade Members

    When you need to find a reputable local company to carry out home improvements to your Surrey home, finding reputable tradesmen can be difficult. How do you know whether they’re any good and can you trust them?

    Chekatrade is a free service that gives you the background information you need to make a confident decision. They offer you a directory of trades and services who have been vetted to their high and completely independant standards, for example by verifying their insurance, qualifications and professional memberships. Not only that, but they also monitor the tradesmen’s work on an ongoing basis by collecting impartial feedback directly from their customers.

    Here at Three Counties Ltd, we’ve been members of Checkatrade since 2010 and are proud to have an average customer feedback score of 9.8/10, so when it comes to choosing a quality local Surrey installer for your new or replacement double glazing, you don’t just have to take our word for it!

Colin Drumm
Colin Drumm
We used Three Counties to replace our front door and porch. Throughout the process, from design, quote, survey and installation the service and level of communication has been fantastic from all involved. The installation team were great, friendly and courteous, working cleanly and tidying up after themselves. We would have no hesitation using Three Counties again, or recommending their services.
Clare Rogers
Clare Rogers
Fantastic service from start to finish. Kept me upto date all the way through the process. Very prompt coming out to measure up and discussing what windows I would like. The install was done professionally by a fab team (James and Josh), cleaned and tidied as they went, friendly team. Would highly recommend
Donata Noad
Donata Noad
Very happy with Three Counties. That’s the second time we have ordered services from this company and both times it was flawless. Prices are very competitive, customer service very good and workmanship excellent. I trust this company 100% and will be definitely be using them in the future. Paul, gentleman who fitted the door, done an amazing job. There is nothing there that person like myself (with slight touch of OCD) would have an issue with. Highly recommended local company that you can trust.
Steve Colvin
Steve Colvin
We replaced all windows and doors with 3-Counties. Efficient and tidy, the workmanship is great. Very happy with experience of using them and wouldn’t hesitate to recommend them
Paul Thompson
Paul Thompson
We used Three Counties to replace 7 windows at our property in February 2022. From the initial quotation, through survey to installation I was extremely impressed with them. The installation was completed by Dan and Cam who I cannot praise highly enough. Their workmanship and attention to detail / finishing was exemplary. They were polite and worked hard / efficiently to complete the job in 1.5 days. They took great care to protect carpets and furnishings whilst working and spent time tidying up, leaving the property very clean. I would not hesitate in strongly recommending this company.
Ryan Wel
Ryan Wel
Professional installation by the team including brickwork and windows will definitely be using again for other windows at the property
Excellent service all round from Three Counties. I fully recommend this company, the fitters Ron and Liam were brilliant, thorough, polite, continually clearing everything away, very tidy, helpful, punctual and never wasted time. The windows and doors are great, one very happy customer.
John White
John White
The quote was the price (no hidden extras).The quality of the doors we purchased and the fitting of them was top notch It is nice to find a company that keeps you informed as regards fitting etc at all times We had a problem through no fault of 3 counties and they sorted it efficiently and effectively.We were kept up to date at all times. I have no hesitation in recommending them to anybody thinking of any form of double glazing. This revue would not be complete without a big thankyou to Kate and the fitters.
Tim Padday
Tim Padday
We are so pleased with our new bi-fold doors supplied and fitted by Three Counties. The job was done professionally and in the time frame provided. Dan and Cam took the upmost care on installation to ensure everything was perfect and they were a pleasure to deal with. Credit to the administration team also who kept us fully informed of the process and schedule. I would highly recommend Three Counties for their workmanship and already have to our friends, who have employed them to do their conservatory