Window Styles
Thanks to technological advancements, PVC windows are available in popular styles but still offer the benefits of energy efficiency and durability. We manufacture PVC (uPVC) windows in various designs, colours, and glazing options.
Casement windows feature outward-opening panels to maximise natural airflow and enable flexible ventilation. Crafted from high-quality uPVC with robust locking systems, these windows can withstand daily wear and changing weather conditions.
Tilt-and-turn windows are multi-point systems that can be tilted inward for ventilation or turned fully for easy cleaning. These windows provide a balance of versatility, security, and thermal comfort, making them ideal for high-rise buildings.
Sliding sash windows feature two framed panels that open and close by sliding over each other. They are designed to replicate traditional windows but offer modern features such as energy efficiency, controlled ventilation, security, and ease of use.
Bay windows extend outward to add more natural light, airflow, and space in a room. Designed with a large central window and two angled side windows, these windows offer timeless character and are popular replacement windows for Glaswegian tenements.
Window Colours
We work in a huge range of colours — here are some of our most popular. Don’t see one you like? Ask us — we’ll be happy to show you our full range, or to talk about custom colour options.
Get in touch with our uPVC window installers in Glasgow for advice about the best PVC windows for your needs.
Born in Germany · Made in Glasgow
⭐⭐⭐⭐⭐ 5 Star Reviews across Google, Which?, Yell & Facebook.
The work done was immaculate and they were really helpful. Couldn’t fault them, highly recommend.Checkatrade Review | Coatbridge
This company was recommended to myself and I have recommended to others.Checkatrade Review | Coatbridge
Extremely clean and tidy, would have them back in a heartbeat if I had any more work.Checkatrade Review | Glasgow
Much better finish and a more professional job than the other windows which were replaced a few years ago by the top firm at the time. Excellent work.Facebook Review | Marion
Really nice to deal with. Would definitely recommend to others. Looking forward to using them again for future work.Checkatrade Review | Glasgow
Was a quick and good quality window replacement!Facebook Review | Lewis
Glazed uPVC Windows
Our PVC windows are double or tripled glazed to ensure optimal energy efficiency. We also provide acoustic glazing that can help reduce external noise.

Double Glazed Windows
Double glazed windows offer exceptional energy efficiency and acoustic insulation through two glass panes separated by an insulating gap. With an A+ rating for thermal performance, they create a warm, cosy atmosphere and reduce energy bills while enhancing indoor comfort.
Triple Glazed Windows
Triple glazed windows provide maximum thermal and sound insulation, making them perfect for noisy areas and cold, windy climates. With three high performance glass layers and an additional insulating gap, they deliver superior energy efficiency and acoustic performance.


Acoustic Glazed Windows
Acoustic glazed windows are designed to absorb soundwaves, which can reduce external noise by up to 40 decibels. PVC windows with acoustic glazing provide exceptional acoustic performance while maintaining unobstructed views and natural light, making them popular choices for properties in noisy areas, such as cities, or busy neighbourhoods, such as those near main roads.
RePlace Windows: Trusted uPVC Window Installers in Glasgow
RePlace Windows Limited has been a trusted supplier and installer for PVC doors and windows in Glasgow since 2014. We streamline the process so we can provide you with a stress-free personalised uPVC window supply and install service.
Here’s why homeowners choose us for their new and replacement windows:
- A-Rated Energy Efficient Windows
- 5-star Rated on Google, Facebook, Yell & Which?
- Transparent Pricing with No Hidden Costs
- Fully Trained and Trusted Fabricators
- No Deposit - Only Pay On Completion
- Fully Comprehensive 10 Year Guarantee
- PAS 24 Accredited PVC Window Frames
- Simple, Stress Free Installation Process
A-Rated Energy Efficiency
Our uPVC windows feature A-rated profiles for unmatched energy efficiency and thermal performance. Their insulation prevents heat loss and draughts, keeping you warmer in winter and cooler in summer.
German Engineered Windows
Our uPVC windows are designed with German engineered frames that provide superior strength, durability, resilience, and energy efficiency. Our glazed windows have U-values as low as 1.2 W/m2K for enhanced thermal performance and acoustic ratings of up to 40dB for exceptional sound insulation. They can withstand daily wear and won’t fade, warp, crack or rot when exposed to harsh weather conditions.
5-Star Rated Window Company
We’ve built our reputation on trust, quality and excellent customer service, which has earned us hundreds of 5-star reviews across Google, Facebook, Yell and Which?
Transparent Pricing Upfront
Our transparent pricing means you always know what you’re paying for with no hidden fees or unexpected charges. All supply & install costs are outlined upfront in a quote.


No Deposit — Pay After Completion
You only pay for your new uPVC door and window installation once you’re fully satisfied with the results. It’s part of our commitment to quality service and excellent quality.
Compliant with British Security Standards
All our frames comply with British Security Standards and can include PAS 24 certification. This ensures that your uPVC windows provide superior resistance against forced entry.
Rehau Authorised Partner
We use one of the most trusted systems in the industry, which ensures we deliver quality installations that meet the highest standards for strength, precision and energy performance. REHAU window systems meet BS7412 manufacturing standards and BS6375 weather performance standards.
Simple, Stress Free Process
We provide a streamlined, hassle-free process for our customers. Our professional team oversees the entire process from initial quote to final installation and inspection, ensuring a smooth service with minimal disruption.
Flexible Finance Options
Spread the cost of your new uPVC windows with affordable monthly payments and 3–10 year repayment terms. Our finance options make it easy for you to get new PVC windows installed with loans from as little as £1000 at 11.9% APR.
Donation with Every Purchase
We believe in giving back, so we make a contribution to charity from every sale. We’re currently supporting Cancer Research UK and Glasgow Children’s Hospital Charity, and we’ve helped to raise hundreds of pounds for each so far.

No pitch · No strings · No pushy people. Get in touch with us to book your free, no-obligation, half-hour consultation so we can show you what we can do for you.
RePlace Windows 10-Year Guarantee on PVC Windows
RePlace Windows is known for its high quality window installation service in Glasgow, but don’t just take our word for it — our customers testimonials speak volumes about our customer service.
We also offer a full 10 year guarantee on our products to give you added peace of mind.
10 Year Guarantee
We provide a fully comprehensive 10-year guarantee that covers the glazing, moving parts, sealants, and all the internal work for every window we install so we are accountable for any faults.
- Maximum Energy Efficiency
- Bespoke Designs
- Durable uPVC & Glass
- Optimum Safety And Security
⭐⭐⭐⭐⭐ across 5 review platforms
Frequently Asked Questions
uPVC windows are window frames made from unplasticised polyvinyl chloride (uPVC) — a rigid, durable plastic that is frequently used in construction. uPVC are one of the most popular types of windows in the UK because they are low maintenance, highly energy efficient, durable, and available in traditional & contemporary designs. Modern uPVC is also fully recyclable, which makes them a more sustainable choice compared to older plastic window frames.
Also read our guide about the Difference Between PVC & uPVC.
uPVC windows are favoured for their affordability, but the style of the window will determine the overall cost. Each style has its unique features, benefits, and aesthetic appeal, which can influence the price. However, the average price for a new uPVC window is typically between £500 to £1,500, making them a cost-effective option for many homeowners.
PVC windows perform exceptionally well in cold and wet climates. Their insulated multi-chamber frames create a tight seal, preventing draughts and water leaks, and they feature advanced drainage channels to protect from moisture build-up. This insulation system ensures excellent energy efficiency and guarantees long lasting durability and weather resistance.
High-quality uPVC windows that have been installed by trained professionals can last between 25–35 years before needing to be replaced. Their strong, resilient frames won’t warp, fade, peel or rot due to their weather resistant properties.
However, routine cleaning and maintenance is important for ensuring the efficiency and longevity of glazed windows. Simply wipe them down with a damp cloth and lubricate moving parts to preserve their appearance and smooth operation.
Also see our guide for How Long Do uPVC Windows Last?
Yes, older uPVC windows can be upgraded with double or triple glazing, multi-point locking systems and insulating seals. RePlace Windows can retrofit your older windows without replacing the entire frame so you get enhanced security, energy efficiency, and thermal comfort with minimal disruption and added costs.
Contact our PVC installers to find out more about our retrofitting service.
Signs that your windows need to be replaced include draughts, jamming or difficulty opening and closing the sashes. Regularly check for condensation between the glass panes or cracked seals and frames to prevent moisture damage.
We can conduct a free site survey and heat loss test to determine if it’s time to replace your uPVC windows.
Book your free survey online today.
Have more questions? Our team can answer them.
Visit our Showroom
31 Fairfield Place, East Kilbride, G74 5LP
Case Studies
Have a look at our case studies to see some of the work we’ve done in Glasgow and across Scotland.
Other Products
Need a new door too? We also supply and install uPVC doors across Glasgow and central Scotland. Our range includes composite doors, uPVC doors, French doors, and patio doors.





























































