Energy efficiency, security, and ease of maintenance can all be gained over a home with the installation of uPVC windows. As one of the most demanded materials available for window construction in the UK, uPVC offers outstanding resistances and durability at a more than reasonable cost for those who desire to upgrade their windows.
Correct installation of uPVC windows allows for the greatest longevity, insulation, performance, and compliance with the legal building standard of the UK. If you decide to go for casement, sash, or even bay windows and tilt-and-turn ones, knowing the nuances and pros of the installation process and costs involved will allow you to make an educated choice.
This guide aims to provide:
- Types of uPVC windows and the application for each of them.
- Factors affecting the installation cost and pricing.
- Installation steps in detail.
- Why one should choose uPVC as compared to other materials.
- Which one is more advantageous: professional or DIY installation?
- Best practices to enhance the durability of your windows.
- Relevant regulations and standards of the country’s energy efficiency.
With this guide in hand, you will be able to pick the most suitable uPVC windows, a qualified professional to install them, or even confidently perform a DIY installation. Let’s jump right in!
Selecting the Most Appropriate uPVC Windows for Your Property
It is important to carefully analyze your distinct requirements before selecting and installing uPVC windows for your property. Each style of uPVC window has its own unique advantages ranging from ventilation and aesthetic appeal to security features, as well as energy efficiency. Whether you’re a homeowner wanting to enhance existing insulation or a business person looking for large durable commercial windows, proper design selection can greatly impact your satisfaction.
Important aspects to take into account before selecting uPVC windows:
✔ Property Type: Types of residential homes or commercial buildings will determine the purpose of the windows.
✔ Ventilation Requirements: Certain styles of windows allow for complete opening, while others permit only partial opening.
✔ Spatial Constraints: Some styles of windows are more suitable for compact areas.
✔ Energy Efficiency: Minimizing heat loss is achievable through double or triple glazing.
✔ Design: Frames and glass that are toughened and supplied provide multi-point locking systems, further enhancing security features.
✔ Personal Taste: A preference for more traditional versus modern designs can be impactful in matching architectural styles.
For expert uPVC window fitting and installation, trust the professionals at Bowland Windows.
Cost Considerations for Installing a uPVC Window
Estimating the price of uPVC window installation is fundamental while planning the home improvement project. The cost is subject to change according to many factors such as the size of the window, type of glazing, colour of the frame, energy efficiency rating, and local wage rates.
a) Expense With Respect to uPVC Window Mounting
The cost of installation of uPVC windows hinges on several elements which are:
- Window Size: A larger window will increase cost due to extra volume of material and work involved.
- Types of Glazing: Triple glazing, which adds 20 to 30% more cost, improves insulation, but double glazing is standard.
- Framing and Finishing: The least expensive frames are white, while other colours or woodgrain add around 10 to 20% more.
- Efficiency Rating: Standards A-rated windows are fine, but A++ or windows with triple glazing are expensive due to better thermal insulation.
- Labour & Complexity of Installation: Typically, everyone underestimates the cost; modifying or resizing the openings of windows is a challenge.
- Location Diversity: London and the South East are more expensive than the rest of the country.
b) Average uPVC Window Installation Costs in the UK
💰 Cost Breakdown by Type and Size of Window
| Window Type | Dimensions (mm) | Total Cost (£) |
| Small Casement | 600 x 900 | £300 – £450 |
| Large Casement | 1200 x 1200 | £400 – £700 |
| Sash Window | 1000 x 1500 | £750 – £1,200 |
| Bay/Bow Window | 2400 x 1200 | £1,100 – £3,700 |
| Tilt & Turn | 1000 x 1200 | £500 – £900 |
| French Window | 1800 x 2100 | £1,200 – £2,000 |
👉 Note: These estimates do not include VAT and may change depending on the supplier and region.
c) Labour Costs for uPVC Window Installation
In the case of installing uPVC windows, the cost of labour ranges from £100 – £250 per window. If all windows in a house are to be done, the installers may give a package price and lower the overall bill.
d) Price Differences for Different Areas
- London & South East: These areas face increased labour costs, resulting in a 15-25% exacerbation in pricing.
- Midlands & North West: Areas are well served by installers and are at standard pricing.
- Scotland & Wales: Areas of lower demand, therefore incur slightly less costs.
- Remote Areas: Areas with few available installers bake fewer competitions into the higher expense for travel.
e) How to Save Money on Installed uPVC Windows
💡 Best Ways to Reduce Installation Expenses:
✔ Gather Multiple Quotes – Aim to survey 3-5 quotes from local providers to encourage competition. ✔ Off-Peak Installation – Schedule for winter or early spring for the lowest prices. ✔ Search for Government Grants – Enquire about subsidized grants available. ✔ Bulk Installing – Fewer windows increase costs; encourage bulk installations. ✔ Check for Finance Options – Certain companies offer interest-free payment schemes.
Installing Double Glazed uPVC Windows
Double glazed uPVC windows must be fitted by professionals in accordance with UK building standards to achieve optimal insulation, security, and durability.
Procedure for the Installation of uPVC Windows:
✔ Pre-Installation Activities – Check measurements, select the correct window type, and comply with FENSA or CERTASS regulations.
✔ Old Window Removal – Safely dispose of old frames and glazing without damaging the walls.
✔ Glass Unit Fixing – Place the units in the window frames and fix them with beading.
✔ Trimming and Finishing – Install internal and external trim, sealant, and insulation.
✔ Inspection and Maintenance – Ensure airtightness, usability, and compliance with UK standards.
4. uPVC Window Installation Process
Steps for Installing uPVC Windows
The installation of uPVC windows follows a strict procedure to guarantee optimal insulation, protection, and durability in accordance with UK building regulations. A correctly fitted window eliminates heat loss, condensation problems, and air leakage, resulting in high energy efficiency and comfort within the residence.
Key Steps in uPVC Window Installation
✔ Installation Preparation – Measure the window area accurately, select the appropriate window style, and check FENSA or CERTASS compliance.
✔ Old Window Removal – Carefully remove and dispose of the obsolete framing and glazing without harming the adjacent area.
✔ Frame Fixing and Sealing – Fit the opening with appropriate fixings, shims, and insulation to ensure an airtight seal around the uPVC window frame.
✔ Complete Glass Installation – Insert double or triple glazed units, secure them with beading, and dry-seal to avoid draughts and moisture ingress.
✔ Trim Both Internal and External – Fill gaps with sealant and insulating material on both sides and fit the trims.
✔ After-Installation Checks – Verify smooth window movement, perform an airtightness test, check locking mechanisms for tamper resistance, and ensure compliance with UK energy efficiency regulations.
Windows provide both aesthetic appeal and functionality. Some homeowners attempt DIY installations to cut costs, but hiring a professional ensures compliance with building regulations, proper fitting, and long-term durability.
5. Professional Installation vs. DIY Installation
Homeowners often choose between professional installation and DIY self-installation of uPVC windows. While DIY installation may seem cost-effective, professional installation ensures compliance with UK building regulations, proper insulation, a secure fit, and longevity.
Should You Consider DIY Self-Installation?
A DIY approach may be cheaper, but additional expenses arise if lacking skills, tools, or precise measurements.
✔ Benefits of DIY Option:
- Low upfront cost – Only pay for materials.
- Flexible schedule – Work on the project at your own pace.
- Hands-on experience – Engage in a do-it-yourself project.
❌ Cons of DIY Option:
-
- Increased risk – Poor insulation may cause draughts and heat loss.
- No warranty or certification – Many manufacturers void warranties if not professionally installed.
- Legal and compliance issues – Unmet FENSA and CERTASS standards can be costly.
- Physically strenuous and time-consuming – Requires specialized skills in measuring, leveling, and sealing.
- Issues – cost of rectifying issues
Why Choose Professionals?
Hiring a FENSA or CERTASS certified uPVC window installers guarantees compliance with building standards and ensures energy-efficient results:
- Multi-point security lock installation enhances safety.
- Adherence to UK energy efficiency policies ensures optimal insulation.
- Warranty coverage guarantees long-term performance.
- Expert installation provides a hassle-free experience for the client.
What to Look for in a uPVC Window Installer
When choosing a uPVC window installer, consider the following:
✅ Licensed Check – Ensure they have FENSA, TrustMark, or CERTASS accreditation.
✅ Evaluation of Services – Check Google, Trustpilot, or Checkatrade reviews for professionalism and reliability.
✅ Warranty Assurance – Insist on a minimum 10-year warranty for materials and workmanship.
✅ Compare Quotes – Obtain at least three quotations to balance price and service quality.
✅ Experience Matters – Choose a company with substantial experience in fitting uPVC windows.
Most homeowners prefer professional installation for compliance, safety, and long-term value. However, uPVC windows can still be installed using DIY techniques if done correctly.
6. uPVC Windows Maintenance and Repairs
Proper maintenance is crucial for the durability, safety, and energy efficiency of uPVC windows. While these windows require minimal upkeep, timely attention and routine fixes prevent operational issues and insulation problems.
Routine Maintenance Tips
To maintain the functionality of uPVC windows, follow these regular maintenance steps:
✔ Cleaning the Frames & Glass – Wipe uPVC frames with warm, soapy water every few months to prevent dirt accumulation. Avoid harsh chemicals that may scratch the surface.
✔ Lubricating Locks & Hinges – Apply silicone lubricant every 6-12 months to ensure smooth operation.
✔ Checking for Draughts – Inspect window seals and apply weatherproofing strips if cold air is seeping through.
✔ Clearing Drainage Holes – Remove blockages in built-in drainage holes at the frame’s bottom to prevent water leaks.
✔ Preventing Discoloration – Keep windows away from direct sunlight and harsh chemicals to avoid yellowing.
Common Repairs for uPVC Windows
Even with proper installation, minor uPVC window issues may arise. Here’s how to address them:
✔ Fixing Stiff Window Handles – Lubricate the locking mechanism and check alignment.
✔ Draughts and Air Leaks – Replace worn-out rubber seals or apply draught excluders.
✔ Condensation Between Glass Panes – Indicates double glazing failure; replace the glass pane.
✔ Window Not Closing Properly – Adjust hinges and locking mechanisms for a tight seal.
✔ Loose or Damaged Beading – Replace internal glazing beads by securing them into place.
When Should You Consider Replacing Your uPVC Windows?
Even high-quality uPVC windows have a lifespan. Here are signs that indicate replacement is necessary:
✔ Persistent Condensation & Misting – Suggests double glazing failure, reducing insulation efficiency.
✔ Damage or Cracks – Frames with warping, cracks, or punctures need urgent replacement.
✔ Outdated Features – Older windows may lack modern multi-point locks and security features.
✔ Rising Energy Bills – Poor insulation from aging windows can increase heating costs.
✔ Difficulty in Opening & Closing – Warped frames or broken hinges necessitate a new installation.
Failure to maintain uPVC windows increases the likelihood of repairs or replacements. Regular upkeep enhances longevity and home resale value. Simple tasks like cleaning and lubricating seals can prevent costly repairs. However, if windows show extreme wear, replacing them ensures better insulation and home security. If you need expert assistance, don’t hesitate to reach out to our team.
