uPVC Window Checklist: Top Questions To Ask (And Why)

A uPVC checklist helps avoid unnecessary repairs, air leaks, or regrets. 

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uPVC Window Checklist

• Profile brand and certification
• Frame thickness and reinforcement
• Glass type and safety level
• UV protection and finish durability
• Beading type, seals, and drainage slope
• Trained installers and post-fit checks
• Warranty, written quote, and service support

We have divided the uPVC vendor questions into three parts for easy reference. 

• Product quality questions
• Installation-related questions
• Vendor and service questions

Product Quality Questions

Product quality questions are related to the window quality assurance, including frame, glass, hardware and safety. 

1. What brand or certification does the uPVC profile have?

Ask if it’s from a reputable manufacturer and check if it follows ISO or EN standards. These standards ensure the uPVC windows are resistant to sun, rain and time. 

2. What is the wall thickness of the uPVC frame?

Make sure the thickness is above 2.5 mm, as it is considered durable. Thinner walls often wrap, sag, or crack over time.

3. Is there steel reinforcement inside the frame?

If the window frame has a galvanised steel inside, it gives structure and strength. Without it. Even the best-looking windows can fail in a couple of years. 

4. What kind of glass is used?

Ask if it’s toughened glass or laminated glass. Double glazing is even better for insulation and noise. 

5. Are the locks, handles, and rollers from a known brand?

No-brand hardware costs less, but does not last long. It usually rusts or breaks soon. So, ask for hardware with a warranty. 

6. Is the window UV-resistant and weatherproof?

Poor-quality uPVC windows turn yellow or brittle in the hot Indian summer. Make sure the material is tested for tropical weather. 

7. Are there colour and finish options available?

If you are choosing laminated finishes, like wood grain or matte colours, confirm if they are scratch-resistant and fade-proof. 

8. Is the frame lead-free or eco-friendly?

Some uPVC profiles contain lead or other toxins. Ask if the brand is certified as lead-free and RoHS compliant, which makes it safe for homes with kids and elders. 

9. Are the profiles multi-chambered?

More chambers in the frame = better insulation and structural strength. 

10. What kind of mess or grills are available?

If you need insect screens or security grills, check if they come integrated or need to be added separately. 

Next in the uPVC window checklist are the installation-related questions. 

Installation Questions

Installation questions are a must because even premium-quality windows can underperform if they are not installed properly. 

11. Are your installers outsourced or from your own company?

Installation standards matter just as much as the product. Trained installers will check for level, sealing, and water slope. 

Also read: What are the advantages of uPVC windows with grills?

12. Will you provide a slope for water drainage?

If there’s no proper slope, rainwater will collect on the sill and seep inside. Ask if drain holes and slopes are included in the design. 

13. What types of sealing do you use?

Always look for EPDM gaskets, as they last longer and are resistant to cracking. Do not prefer ordinary sealants, like silicone, because they peel over time. 

14. Is the beading internal or external?

Internal beading is safer because the glass cannot be removed from the outside.

15. Will you check for air and water leaks after installation?

Make sure the vendors run basic checks like water spray or air pressure tests to make sure sealing is done properly.

For more information, please visit white uPVC profiles.

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16. How is the window anchored to the wall?

Some vendors skip using proper anchors or spacers. This can lead to loose frames over time. Ask if mechanical screws and proper shims are used. 

Vendor & After-Sales Questions

Vendor and after-sales questions will help judge the vendor’s reliability and support. 

17. What is the warranty on both the frame and hardware?

Ideally, you should get at least 10 years on the frame and 1 to 2 years on locks, rollers and handles. Make sure you get the guarantee card in writing from the company. 

18. Will you provide written specifications and a quote?

Ask for a document that clearly states thickness, hardware brand, glass type, sealing method and number of locks and handles. 

19. Do you have real customer references or site photos?

Ask the vendor to share photos or client feedback. It’s one of the easiest ways to verify their work.

20. Who do I contact in case of service issues later?

Make sure they have a dedicated service contact to avoid irregular responses later.

21. What is your delivery and installation timeline?

By asking for the delivery and installation timeline, you can plan your renovation work and avoid surprise delays. Also, enquire about any extra charges for travel, rework, or late installations

22. Do you manufacture your own windows or source from elsewhere?

End-to-end vendors often ensure better quality control and consistent service than resellers who outsource both product and fitting. 

Also read: Why choose uPVC windows and doors for monsoon?

At GreenFortune, we manufacture uPVC windows in our own ISO-certified facility, using German precision and materials tested for Indian weather conditions. We check frame thickness, add steel reinforcements, test sealing and drainage, and use only trusted hardware. Installation is handled by our in-house trained professionals. 

A Buyer’s Guide To uPVC Sash Windows

Sash windows were first used during the Georgian era in England and remained popular until the beginning of the 20th century. By the beginning of WWI, casement windows were being used more regularly, and homes were rarely being built with sash windows installed. However, sash windows have a timeless charm and a vintage style that many modern homeowners continue to find aesthetically pleasing. That’s why it’s still an appealing & important feature of homes across the country. 

At the Rose Collection, we manufacture and supply market leading timber alternative sash windows. The Rose Collection consists of three premium profiles: the Ultimate Rose, Heritage Rose, and Charisma Rose. All three of these models are almost indistinguishable from original timber frames but have all the benefits of modern uPVC. If you are considering buying uPVC windows or looking to upgrade outdated and underperforming timber frames, we have put together this sash guide so that you can choose the best uPVC windows for your property.

Choose a uPVC Window Charm

Sash windows are unique as they open by sliding vertically on top of each other. In the past, these windows had a pulley system to open and close, but advances in technology mean that the sashes can now be kept securely open with an effective, balanced spring system. The manufacturing may differ, but the exterior aesthetic of the Rose Collection is almost identical to authentic sash window designs.

If you are looking for additional traditional charm, choose the Ultimate Rose model and enjoy true mechanical joints and seamless design. You can even upgrade with our exclusive seahorse sash horns to truly replicate a traditional sash window. The Ultimate Rose may be our most authentic design, but all three models in the Rose Collection have the timeless appeal of timber frames.

Learn About The Benefits of uPVC Windows

Nothing can quite beat the traditional charm of timber frames. Unfortunately, authentic wooden sash windows are unable to stand the test of time, as they need regular maintenance and repainting. Timber frames are prone to flaking, warping, bowing and rotting if not properly cared for. Also, older uPVC replacements are known to discolour due to weather exposure – turning white frames an unpleasant yellow colour. When buying uPVC windows for your home, make sure you are choosing sash designs that are low maintenance but still provide the classic look of timber frames.

The uPVC windows in the Rose collection are customisable, and the high-quality material is durable and easy to care for. Whether you choose the Ultimate Rose, Heritage Rose, or Charisma Rose, with our 10-year product guarantee, you can be confident that your new uPVC windows have been built to last.

Invest in Energy Efficient uPVC Sash Windows

Heat can escape through your windows and doors, which is why it’s important to consider the energy rating of every new installation you invest in. With the current climate and energy bills on the rise, more and more homeowners are looking for ways to save money on their heating bills. Sash windows traditionally only use single glazing, which cannot effectively prevent heat loss and noise pollution nor provide reliable home security.

Our Rose Collection effectively provides homeowners with ‘A’ rated, energy efficient uPVC sash windows. With our insulated frames and enhanced double glazing, homeowners can rest assured that their property will experience high thermal performance all year round. If you want to lower your energy bills and reduce your home’s carbon footprint, make sure you are investing in energy efficient sash windows.

Raise Your Home’s Security Levels

We understand the importance of home security. That’s why the sash windows in the Rose Collection have been designed with home security in mind. While they look the part in terms of authentic timber frames, they also provide 21st century levels of protection. When investing in sash windows, it is important to check what safety features are in place and discover what testing the glazing has been through before being approved for sale.

The sash window models in the Rose Collection use the latest security features to provide homes with reassuring levels of safety. Homeowners can enjoy total peace of mind, as all three of our sash windows include highly secure locking systems. For additional security, consider upgrading your sash windows to achieve a Secured by Design status. When you upgrade, your new frames will include a range of security-enhancing features, and you have undergone several tests to certify this high level of security. Alongside the option to upgrade to Secure by Design, we also offer laminated glazing and opening restrictors to improve security further.

Buying uPVC Windows From The Rose Collection

At the Rose Collection, we provide UK based homeowners with the best uPVC sash windows on the market. All three models in the Rose Collection effectively blend traditional style with outstanding modern performance. Our sliding sash windows are made with high grade uPVC, and their durable design is made to last for decades. For the most authentic style frames, choose the Ultimate Rose with its several accessories and design features, such as a removable staff bead, a classic deep cill, a chamber cover and our unique seahorse sash horns. It is also important to consider your budget when investing in sash windows. If you are looking for the most cost-effective windows, opt for the Charisma Rose.

Why not contact our team today? We can help you find the right product for your home or connect you with one of our approved installers, who can assist with everything from survey to installation. 

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