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Lovely chap, fair priced and good work carried out. I would recommend.

Lloyd

On time. Perfect job and very polite. Highly recommended.

Kate

Quick, professional and friendly. The team gave me the impression that they are happy to do extra to get the best results. Carl and the team did exactly what they said they would do in the quote in the agreed time.

Daniel

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.

Sign up as a double glazing specialist

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A family run local business trading in North wales for over 20 years.We undertake all aspects of home improvements from a simple tap swap to full house refurbishments. Customer satisfaction is our number one goal!

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Reviewed by Phil on 30/9/2025

From the very first conversation, Karl has been great to deal with. Any discussions about the job were clear and I felt confident throughout the time the job lasted. The project started on time and despite the weather the job was completed in good time. Plus an excellent result as well. Very pleased.

C & N Constructions is a well-established company offering construction and landscaping services for both residential and commercial clients. Our faith: We believe in open and honest communication and shared goals which will generate greater continuity in workload and thereby provide sustained improvements in quality, efficiency & delivery. Our mission: To safely deliver any project, any time, in any environment for the benefit of our customers, shareholders, employees and the communities we serve. Company vision: C&N Constructions is committed to building long-term relationships based on integrity, performance, value, and client satisfaction. We will continue to meet the changing needs of our clients with our quality services delivered by the most qualified people. Get in touch and we can start asap! We offer free and no obligation project estimate.

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Reviewed by John on 29/6/2025

The job was to cut back a severely overgrown patch of garden. Chris & his team, Adrian & Cosmin, gave me a competitive quote, after coming to visit the site to assess what needed to be done. They started next day and completed the job quickly and to my complete satisfaction. The site was cleaned up & all waste taken away. I will definitely use them again and strongly recommend them.

Hi I'm Adam, the owner of Darby Home Improvements. With around 25 years combined experience, rest assured your project will be in safe hands. Myself and my team specialise in carpentry but are competent and experienced in all aspects of building work. I work very closely with a host of other trades such as Plumbers, Electricians and Plasterers. This means we can handle your project from start to finish without having to source these trades yourself. No job is too big or small. We will deal with the smallest leak on your roof to the biggest renovation or build project you can imagine. Please don't hesitate to contact us for your next project. We aim to beat any reasonable quote without sacrificing quality or workmanship in the process. I look forward to hearing from you!

Just4U Builders We offer a wide range of home improvement and repair services, including: Painting Carpentry Flooring Plastering Plumbing Handyman Services Feel free to let me know if you'd like more details added or if you'd like me to assist with something else!

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Reviewed by Suhran on 11/1/2026

Leroy is very professional, courteous and honest. A pleasure to deal with, clean and good work. Highly recommend and will be my first point of call for future jobs.

Well established family run building company based in London,we have built a strong relationships with well known building societies across the London due to our quality and trustworthy service High quality levels of work in major building projects,we specialise in planning and design,project management and general building services

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Reviewed by john on 9/11/2025

5 star

We are a reliable and successful company and we provide the quality and the qualification of the work and product which we are doing for you .Our motto is, my customer my boss. We coming for a long journey experience working of 20 years working experience in Spain,Italy, United kingdom and Romania of landscaping industry and inside and outside house design of isolation,consolidation, any work of tiles or painting. We coming with the real quote of the work we try to be in competition with the construction quotations and to make our clients to make our publicity for work and quotations

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Reviewed by Katia on 25/10/2025

Alex visited me for a quote. One member of his team came on the same day and did the front garden quickly and efficiently.

Highly range of painting and decorating skills. Quality for prise. 15years I’m in this business. I love what I do that’s why my standards are very high.Im a very focused person on my duties,knowing what to do.I like to have well organised place to work.Im keeping clean and tidy ,surface after all ,it’s important for me, as a person I am. Experience and variety of the jobs I did in past few years gives me knowledge and assures my of what I am doing.

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Reviewed by Victoria on 14/11/2023

Did an amazing job removing the desks and touching up/repainting the walls.

Full property renovations, extensions, loft conversions, outbuildings & more.

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Reviewed by Dominic on 5/7/2024

Andre and team did a great job with the shed /summerhouse construction, and were very accommodating with the request to build it at short notice ( (within 5 days) and alter the layout of the building to meet our requirements. Also were very friendly and professional. Reasonably priced too. Would recommend.

K&M BUILDING SYSTEM is a business that specialises in all aspects of building. From extensions to driveways, kitchens, bathrooms or demolition. No job is too big or too small. We are fully covered with public liability insurance giving us and our customers peace of mind when carrying out your project. We always aim to complete your job on time to a very high standard with very competitive prices. We provide building services across Edinburgh – 7 days a week.

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Reviewed by Donal on 11/1/2025

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.

At Cymraeg Construction, building work has been at the heart of our family for generations with skills, knowledge and training passed on from one to another, even in the day to day running of the business we can call upon over 40 years experience from my father who is an integral part of the company and has made us what we are today with a passion for quality that shines through on every job we undertake. Covering all of South Wales, you can be sure to rely on us to undertake any project you may have from conception to completion, we can take care of all aspects of the build including planning and skilled tradesmen in all trades, let us deal with all the complications and timings as we project manage the process to ensure everything is done correctly and to schedule all while keeping you informed every step of the way. Please feel free to contact us for a free no obligation estimate on any work you may have. Cymraeg Construction.

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Reviewed by carole on 22/5/2025

Gareth and his team were amazing and professional throughout. He was very knowledgable regarding the options available to us. All work was completed quickly and efficiently. Gareth kept in contact with us throughout our garage renovation and even kept in touch afterwards to check everything was ok for the fitment of the garage door. I wouldn’t hesitate to recommend Gareth and his team and would definitely use them again for any future building work on my home. Great job completed.

About Our Company If you are searching for experienced and reputable building contractors to convert your garage, you have come to the right place. Surrey Garage Conversions is a team of highly skilled and City & Guilds-trained building professionals who construct our garages to the highest standards. A garage is often used as a storage space or dumping ground, which can be greatly overlooked as being fit for another use. However, our garage conversions are designed to maximise the potential of your garage space so that it can be used as a hobby room, office, playroom, or another reason. We are proud to have an excellent reputation, and much of our work comes from word of mouth and referrals. We convert garages across Surrey and Sussex. Please see our FAQs. Call us now for a free and no-obligation consultation.

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Reviewed by Craig on 22/6/2025

They were quick to respond and to provide a reasonable estimate for how much the work would cost. Once we had confirmed the job, they were flexible in working around our dates. The work was done promptly and our tenants were very satisfied with the quality. A great job all round.

We are a family run business with lots of experience no job is too big or too small many thanks onestop team

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Reviewed by Wayne on 13/11/2025

Welcome to Nation windows Ltd, We strive upon our reliability and provide friendly customer service. As a result of we have built a strong foundation in our region. Each of Our collection is built to meet the customer’s criteria and demands. A home can be completely revitalized with the installation of aluminum and U.P.V.C windows and doors. We guarantee 100% customer satisfaction, with exquisite finish to our products to match your residents. Furthermore, using these materials is more sustainable for you and the environment as they can enhance your house energy consumption efficiency, weather resistance and security. We provide a wide range of design options and surface treatments so that your new windows and doors can be personalized to your exact specifications. There is a broad variety of colour option and designs available to you. Our installers are all skilled professionals that take pride in their work and are committed to giving you the best possible outcome for your home renovation. Our staff of in-house installers has been with Nation windows for years, so you know they are reliable and that we don't outsource the work.

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Reviewed by Leah Jade on 2/7/2025

Nation Windows did an outstanding job at a very reasonable price! I'm very happy with the window quality and the service Pam provided. I have recommended him to all my friends, and you should go with them!

Page Developments undertake all aspects of building work, renovations and property maintenance across Cheshire.

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Reviewed by Robert on 25/9/2025

Page Developments did a great job and really quickly

As a building We strive to make customers happy ur work speaks for itself we trie to offer all our clients the best advice and services all or callout are absolutely free advice and we do not charge for inspections this is just another way to give ? people peace of mind To choose GJ building solutions?

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Reviewed by David on 11/1/2025

James and Andy provided excellent advice and did a great job. The job revealed some extra work was needed but the changes were all discussed and agreed without pressure before being implemented and James was able to bring in extra team members whilst on site so the work was completed in a timely fashion. All of the team were personable and a pleasure to have on site.

JNS Joinery Services LTD have 30 years experience in joinery , within the building trade being involved with completing new houses and renovation of older property's ,also been involved in erecting kit houses from plan stage , we also fit new Windows,external doors, internal doors, new facing ,skirting , kitchens, flooring ,fencing,roofs,velux roof light, decking ,wetwall panels in bathrooms , and most general problem solving in the joinery trade

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Reviewed by Julie on 10/4/2025

JAS joiners have just finished and did a fantastic job to extend and replace decking Quoted on time and completed the job on time. Very good tradesmen, professional and friendly. Would definately recommend.

Electrician at Self employed electrical engineer

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Reviewed by Vicky on 25/8/2024

Came out short notice. Managed to squeeze me in. Due to short notice of getting room plastered 3 days later. Had 4 double plugs put in. In chrome like I wanted. They were professional and cleaned up after themselves. Will definitely use again

Professional services!

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Reviewed by Gavin on 15/1/2026

Adrian responded promptly to the advert, provided a fair quote which he stuck to, arrived the next morning on time, and completed the trampoline build efficiently with no issues. Recommended and will use again.

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