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Discover over 10,000 trustworthy tradespeople on Rated People ready to enhance your home with high-quality uPVC doors and windows. Whether you’re upgrading for improved energy efficiency or are wanting to install a skylight for aesthetic appeal, our platform connects you with professional local uPVC door and window fitters efficiently. If you’re a uPVC specialist, learn how joining Rated People can help you connect with clients and expand your opportunities.

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How long does it take to fit double glazing?

The installation of double-glazed uPVC windows and doors can significantly enhance a home’s energy efficiency and value. The process usually takes between one to three days, depending on several factors:

  • Removal of Old Windows: This initial step involves taking out existing windows and preparing the openings for new units.
  • Installation of New Frames and Glass Panes: New uPVC frames are installed, followed by the fitting of double-glazed glass panes, often to replace old windows such as sash windows.
  • Variables Affecting Time: The number of windows, their sizes, the complexity of the designs, and any custom specifications can extend the installation period.
  • Extra features: If the job is more complicated, such as when you’re fitting a conservatory, this can extend the time by quite a lot.

How much do uPVC windows and doors cost?

The cost of uPVC windows and doors varies widely based on several factors including the type, size, and specific features of the products, as well as the complexity of the installation process. Here’s a more detailed look at the potential costs involved:

  • Price Range for uPVC Windows: Typically, individual uPVC windows cost between £150 to £900 each. The wide range in prices can be attributed to differences in window sizes, styles (such as casement, sash, or tilt and turn), and the glazing options chosen (double vs. triple glazing).
  • Average Costs for a Standard Home: For a typical three-bedroom house, replacing all windows with standard white uPVC casement windows might cost around £4,000. This price includes both the cost of the windows and the labour for installation.
  • uPVC Doors: Prices for uPVC doors start from around £500 and can go up to £1,200 or more for enhanced security features, bespoke colours, or glass panel inserts.

Additional Cost Factors:

  • Installation Complexity: Costs can increase based on how easily accessible the windows or doors are, and whether any additional structural modifications are needed. For example, enlarging an existing window opening or converting a window into a door will add to the cost.
  • Geographic Location: Installation costs can also vary by region, with urban areas and the south of England typically having higher rates due to increased labour costs.
  • Customization: Custom colours, unusual sizes, or special patterns in glass (like frosted or tinted) can significantly increase the price. Additionally, enhancements such as noise reduction technology or high-security locks will also contribute to a higher cost.
  • Energy Efficiency: Higher-specification windows with advanced energy-saving features, such as argon gas-filled units or low-emissivity (Low-E) coatings, while more expensive, can provide substantial savings on energy bills in the long run.

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How do I know if the job has been done well?

To ensure high-quality installation of uPVC windows and doors, look for the following signs:

  • Sealed Joins: Check that the joins between the glass and frame are tightly sealed without any gaps.
  • Energy Efficiency Rating: The windows should have a low U-value, typically around 1.3-1.5 W/m²K, indicating good insulation.
  • Reduction in Energy Bills: Over time, you should notice a decrease in your energy costs, reflecting the efficiency of the new installations.

The best way to ensure a job gets finished properly is to take a look through previous reviews, as well as ask to have a look at old work. At Rated People, you can make the right choice based on a tradesperson’s past reviews, and read through our window fitters page to find out the types of questions you should be asking beforehand.

Other uPVC FAQs

Is it illegal not to have a FENSA certificate?

A FENSA certificate is required for new window and door installations as proof of compliance with building regulations in England and Wales. Not having one can be problematic during property transactions.

Is double glazing fitted from inside or outside?

Double glazing can be fitted from either inside or outside, depending on the property structure, the type of windows, and the preference of the installer.

How messy is window replacement?

Window replacement can be quite messy, involving the removal of old frames and possibly some minor building work. However, professional fitters will ensure that the area is cleaned up after the installation.

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GW Glass Here at GW Glass, we supply and install all windows and bifold doors and all types of units, we can help you make your home more luxury living. We do all types of maintenance on windows and doors. - broken down units -broken hinges -broken mechanism's - all types of single glazing GW Glass also designs and installs a wide range of glazing solutions to domestic and commercial clients across London, Essex and Hertfordshire. We are highly skilled and knowledgeable with the installation of affordable, quality windows and doors. Over 15 years experience, you are in safe hands.

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Reviewed by Simon on 25/10/2025

Fast, friendly reliable service

I’ve been in the building trade for over 20 years and would like to think I’ve gained knowledge and experience in most aspects of domestic building i always like a challenge and try to make people’s concepts a reality I will always try my best to give a fair price and always adhere to time scales my main background is general building work .but I have a host of sub contractors working with me so we can take on more or less Any work you may require

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Reviewed by Shaun on 11/11/2025

Installed French doors into the side of a garage which involved cutting a new opening into the brickwork. Great job. Very quick to respond. Clear on timescales and a very fair price. Would highly recommend based on this experience.

Waterford building services are a family run business and feedback from many of our customers can be found on web sites such as checkatrade and trustatrader as well as on here please feel free to check us out and I'm sure you wont be disappointed . thanks

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Reviewed by Marion on 13/11/2025

I’m very grateful to Roy of Waterford Windows System for repairing and replacing the locking mechanism in my front door. He knew exactly what was needed and fixed it very quickly. It’s perfect again now. Thank you so much Roy. I thoroughly recommend him to anyone needing assistance with doors, locks or windows.

JG Windows & Doors is a reputable family-run business with a rich legacy spanning over 30 years. We take pride in providing our customers with top-notch service and an outstanding selection of high-quality products at competitive prices. As a company deeply rooted in family values, we understand the importance of trust, reliability, and integrity in every aspect of our business. Our team is committed to delivering unparalleled customer satisfaction by offering expert guidance, personalized solutions, and attentive support throughout every step of the process. At JG Windows & Doors, we believe that quality should never be compromised. That's why we source our products from trusted suppliers known for their craftsmanship and durability. Whether you're looking to enhance the aesthetic appeal of your home or improve its energy efficiency, our extensive range of windows and doors is designed to meet your specific needs and preferences. We are dedicated to exceeding expectations and ensuring that each customer receives a seamless and enjoyable experience from start to finish. With our unwavering dedication to excellence and a genuine passion for what we do, JG Windows & Doors is your trusted partner for all your window and door needs.

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Reviewed by Nisha on 13/11/2025

Macklin Glazing is not your typical glazing company. Why? Because we genuinely care about our clients and the quality of work that we do. We specialise in all things glazing and offer a range of products designed to suit every requirement and budget. Whether you are looking for straight-forward PVC windows or you would like to discuss some architectural glazing please allow us the opportunity to provide a quote where we will demonstrate why Macklin Glazing is the perfect partner for you. Macklin Glazing has quickly established itself as one of the most trusted glazing companies in the Scotland. This family run business is spearheaded by a dynamic team who are intent on providing excellent products, 1st class workmanship and the highest standards of customer service. Overall, the business has nearly 100 years of experience within the sector giving customers the peace of mind they need when inviting a home improvement company into their property. Our aim is to offer excellent value for money and an unrivalled professional service. No matter your glazing requirements, Macklin Glazing can offer you the solution. Our product range includes: - PVC Windows & Doors - Aluminium Windows & Doors - Timber Windows & Doors - Composite Doors - Bifold Doors - Sliding Doors (including new slim sightline range!) - Porches & Conservatories - Extensions & Sunrooms - Cupolas & Roof Lanterns - Velux Windows - Glass Balustrades & Composite Decking - Garage Conversions - Commercial Glazing & Curtain Walling So if you have an upcoming project - no matter how big or small - please allow us the chance to provide you with a quotation. We know you won't be disappointed.

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Reviewed by Francisco on 27/10/2025

My name is Karl , I am 34 years old . I have been in the trade now for 15 plus years accumulating many skills ,most of which I have listed below . I have recently started my own business and have a team working with me , No job is too big or too small . I am polite and conscientious and I always leave the work areas clean and tidy . I also offer excellent aftercare if any problems arise .

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Reviewed by Ike on 4/12/2025

I have 16 years of experience working in double glazing industry. 6 years in manufacturing and last 10 years as service engineer. Cscs card and nvq level 2. Public liability insurance. Valid DBS check.

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Reviewed by David on 18/8/2025

Excellent work. Reasonable price. Lukasz very polite and professional. Highly recommended

Jr windows and doors has 24 years experience in the double glazing industry. We have many repeat customers with most of our work coming from recommendations. We supply only Arated products and offer a complex overall service

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Reviewed by craig on 21/3/2025

Really excellent job the guys couldn’t do more to help and the windows were fitted to a very high standard

My Property Services- covering the midlands for your building maintenance needs. Works include Insurance Backed Guarantee available on all building works Windows / doors Glazing Call out services Lintel installations General Building work Extensions Landlord services Electrical and plumbing Fencing Joinery Roof repairs And much more

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Reviewed by Attila on 26/9/2025

Excellent service! Highly recommended! Thanks

All personnel are time served in the industry allowing to draw on vast years of experience, we treat your selves and your home with the utmost respect involving you in each stage of your valued installation, no matter how large or small keeping you informed as we go along. The owner/Director deals with all first call appointments and visits each and every installation as it is going on, he himself is fully time served and has been in this industry since 1973. We value each and every enquiry and price the job very competitively and each job is covered by a full written contract of works to ensure that each party is under no illusions as to the work tendered for, it is also surveyed by company surveyor ensuring all points are fully covered and checked before works commence and inspected and signed off at conclusion of install. To assist you further all and any initial payments are by card for mutual protections. All works are guaranteed 10 years in writing, all works sites are fully cleaned down with all old and surplus materials removed and disposed of. All in all with Viscount Windows Ltd you can be and rest assured that you have made the right choice of contractors. Hi

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Reviewed by bridget on 30/7/2025

Would not recommend this company. Lack of communication about start date. Numerous excuses about delays at factory re frames then glass. Work eventually completed . Felt pressured to pay balance even though I was not completely satisfied with the job.

Welcome to KMI Windows - Your Premier Double Glazing Solution in South London! Greetings! I'm Khalil, and I'm thrilled to introduce you to KMI Windows, a FENSA registered company 43156. Why Choose KMI Windows? Decade of Expertise: With a decade of hands-on experience in the industry, I've brought my expertise to KMI Windows. Rest assured, your windows and doors are in capable hands. Dedicated to Excellence: At KMI Windows, we're dedicated to delivering excellence in every project. Our commitment to top-notch quality, craftsmanship, and customer satisfaction sets us apart. Comprehensive Product Range: Explore a diverse range of products, from UPVC and aluminium windows to doors, French doors, front doors, composite doors, garden doors, bifold and sliding doors, and skylights. Our offerings blend aesthetics with durability and energy efficiency. Skilled in Repairs: Beyond installations, KMI Windows specializes in double glazing repair works. Whether it's addressing jammed locks, handles, or replacing broken or misted glass panes, we bring the same level of expertise and precision to every repair project. Honesty and Reliability: Trust is paramount, and at KMI Windows, we prioritize honesty and reliability. Expect transparent communication, fair pricing, and a steadfast commitment to meeting deadlines. Choose KMI Windows for a seamless, professional experience from consultation to completion. Allow us to elevate your double glazing needs with enduring solutions.

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Reviewed by Raymond on 12/3/2025

Came quickly, decent price and great outcome.

Specialist in all aspects of windows and doors including: Replacement glass for windows and doors, lock replacements and repairs (locksmith services), window and door replacement or repairs of handles, hinges and all associated components. Same day and out of hours services available.

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Reviewed by William on 9/10/2025

Jason was really helpful and was patient with us regarding timescales. We are very pleased with the door he installed and also the price. We would use him again

Part of the Centiam Home Improvement group, we are a growing company. All jobs are undertaken in a way which makes our customers needs our number one priority. All our products are hand picked to offer quality and value for money.

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Reviewed by Frazer on 25/9/2025

Did a great job replacing the windows for my flat, was happy with the process of agreeing exactly what was specified for the job and that's what was delivered. Job was taken care of in good time and for a fair price.

When looking for a double-glazing repair company it is essential that you find one you can trust to offer a high-quality, guaranteed service. Based in London Precision Window Repairs Ltd is a reliable and professional double-glazing repair company covering London and the surrounding area. Double glazing has the potential to significantly reduce your fuel consumption by improving the insulation of your home and reducing heat loss via windows and doors; an investment which in the long term could save you a considerable amount of money. Faulty double glazing may cause draughts and excess moisture in your home. Precision Window Repairs Ltd’s replacement glazing services include: Windows & Doors Bay Windows Bifold Doors Composite Front Doors Conservatory Installation Conservatory Repairs Conservatory Roof Insulation Door Canopies Double Glazing Repairs Glass Replacement Porches UPVC Repairs UPVC Windows and Doors Window Fitting Please don’t hesitate to contact us for a free, no obligation quote.

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Reviewed by Lucas on 15/11/2025

Well trained Locksmith with over 20 years of experience. All sorts of locks fixed or replaced, Aluminium windows and doors, Upvc windows and doors, Timber windows and doors, Bi-Fold doors, Sliding doors, Patio doors, French doors and more.

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Reviewed by Alex on 14/10/2025

Hi I'm Tony the owner of Hawarden doors With over 30 yrs experience in the replacement window and door industry providing services to large National and small independent Companies you can rest assure i have the experience and knowledge to complete any job associated with these around your property

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Reviewed by isaac on 5/12/2025

experienced and excellent work

We are Commercial and Domestic glazing contractors covering all of Northern Ireland. We provide a 24hr boarding and securing service. We also carryout all types of joinery and minor building works up to 15k.

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Reviewed by William on 27/8/2025

We are a medium sized Home Improvements company who have been trading for around 11 years as of 2019. An excellent 5-star reputation has been earned through quality work done on a friendly, but professional basis- most of our work is now coming through recommendations.We can cover most types of jobs: From Architectural plans etc / Building / Roofing / Glazing/ Joinery / Electrical / Plumbing / Rendering / Plastering / Decoration- a complete service which a lot of customers are looking for.We work very hard on the personal service side of things including the project management from myself.Our aim is simple: to give the customer a first- class job which in turn leads to my name being passed on plus being asked back for further work.Thank you for looking at us.

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Reviewed by Baraq on 28/2/2025

With more than 10 years of experience in the window, door and conservatory industry, New Images Windows are dedicated in bringing its customers an unrivalled service, and offering top quality products at competitive prices. Using official ‘A’ rated products, our windows and doors will make your home warmer, lower your energy bills and insulate your home against outside noise. And, because we use only high quality locking systems, you can relax knowing you and your home are in safe hands. New Images Windows' aim is to set ourselves apart from the competition. We offer a personal and friendly approach and don’t use pushy salesman. We are highly experienced and respected within the industry, and are fully involved at every stage, including the pricing and surveying process. And while we are working you can rest assured that everything is covered by PLI

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Reviewed by Andrew on 25/9/2025

My name is Akram and I am a Local Locksmith professional with 14 years of experience in residential and commercial properties Handling Locked outs, Locks Replacement, Security Upgrade advice .I charge no vat, reasonable callout charge for my valuable customers depending on the time, area and nature of jobs, CRB/DBS checked.

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Reviewed by Elisha on 28/10/2025

Very satisfied with the work done

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