Winplex Double Glazing
Comparing Double Glazing Quotes?
Before choosing the cheapest quote, make sure you are comparing the same product, inclusions and long-term value.
Getting more than one double glazing quote is smart. But the final price only tells part of the story. Two quotes can look similar on the surface, but they may include different frame systems, glass specifications, hardware, installation methods, warranties and aftercare.
Compare like-for-like
Not all double glazing quotes are the same
A cheaper quote may still be a fair quote. But in many cases, price differences come down to the details.
One company may be quoting a different frame system. Another may include different glass. Another may allow less for installation, finishing or aftercare. Another may have a different warranty or support process.
That is why it is important to compare more than just the final number.
At Winplex, we quote based on a complete installed solution using Melbourne made, German engineered uPVC double glazed windows and doors, backed by local support and a 10-year guarantee.
Quote checklist
What to check before choosing a double glazing quote
| What to compare | Why it matters |
|---|---|
| Frame system | The frame affects insulation, strength, appearance, maintenance and long-term performance. |
| Glass specification | Double glazing is not one standard product. Glass thickness, air gap, coatings and acoustic options can affect comfort and noise reduction. |
| Hardware | Hinges, handles, locks and opening mechanisms affect security, usability and durability. |
| Installation | Even a quality product can underperform if it is not installed correctly. Check whether installation is handled by an in-house full-time team or subcontractors. |
| Removal and disposal | Check whether removal of your old windows and disposal is clearly included. |
| Finishing work | Trims, sealing, reveals and make-good work can affect the finished look. |
| Warranty | Compare the length of warranty, what is covered and who supports it locally. |
| Manufacturing origin | Locally made products can support better quality control, lead times and aftercare. |
| Aftercare | If something needs adjustment later, check who handles it and how quickly. |
| Scope | Make sure each quote is based on the same number of windows, doors, openings and inclusions. |
Price differences
Why cheaper quotes can look cheaper
A lower price is not automatically a problem.
The risk is when a lower price is based on a different product, reduced inclusions, unclear installation detail, limited warranty support or less aftercare.
If the answer is unclear, the quotes may not be like-for-like.
- Are the frame systems the same?
- Is the glass specification the same?
- Is the hardware the same?
- Is installation fully included?
- Is installation handled by an in-house full-time team, not subcontractors?
- Is removal and disposal included?
- Is finishing included?
- Is the warranty the same?
- Is local support included after installation?
- Is the quote based on the same scope?
Quote review
Already have another quote?
Send it to Winplex and we can help you compare what is included.
We will look at the key details such as product type, glass, hardware, installation, warranty and inclusions, so you can make a more informed decision.
Long-term value
Why homeowners choose Winplex
Winplex provides Melbourne made, German engineered uPVC double glazed windows and doors designed for comfort, insulation, noise reduction and security.
With local manufacturing, local support and a 10-year guarantee, Winplex focuses on long-term value, not just the lowest upfront price.
Material comparison
uPVC double glazing vs aluminium windows
Some homeowners also compare uPVC double glazing with aluminium window systems. Both can have a place, depending on the project.
For many replacement window projects, uPVC is chosen because of its strong insulation, low maintenance and comfort benefits.
| Factor | uPVC double glazing | Aluminium windows |
|---|---|---|
| Thermal insulation | Strong natural insulation | Conductive unless thermally broken |
| Maintenance | Low maintenance | Low maintenance |
| Appearance | Clean residential finish | Slim architectural look |
| Comfort | Strong option for warmth and reduced drafts | Depends on system and specification |
| Noise reduction | Strong when paired with suitable glass | Strong when paired with suitable glass |
| Best suited to | Residential comfort, insulation and replacement windows | Architectural, large-format or commercial-style projects |
If comfort, warmth, reduced noise and long-term home performance are your priorities, uPVC double glazing may be the better fit.
Before signing
Questions to ask before signing a quote
Before accepting any double glazing quote, ask the supplier:
- What frame system is included?
- What glass specification is included?
- What hardware and locking system are included?
- Is removal of existing windows included?
- Is disposal included?
- Is installation fully included?
- What finishing work is included?
- Who manufactures the windows and doors?
- Who installs them?
- What warranty is included?
- What happens if something needs adjustment after installation?
- Is this quote based on the exact same scope as my other quotes?
These questions help you compare value, not just price.
Frequently asked questions
Double glazing quote FAQs
Why are double glazing quotes so different?
Double glazing quotes can vary because of frame type, glass specification, hardware, window size, installation method, finishing work, warranty, service and aftercare. The final price may not reflect the same level of product or inclusion.
Should I choose the cheapest double glazing quote?
Not always. A cheaper quote may be suitable, but it should be checked carefully. Make sure the product, installation, warranty and inclusions are genuinely comparable.
What should be included in a double glazing quote?
A clear quote should include product type, frame system, glass specification, hardware, measurements, installation, removal of existing windows, finishing work, warranty, payment terms and expected timing.
Is uPVC better than aluminium for double glazing?
It depends on the project. uPVC is commonly chosen for residential replacement windows because of its insulation, low maintenance and comfort benefits. Aluminium may suit architectural or large-format designs, especially where a slimmer frame is preferred.
Can Winplex compare another quote for me?
Yes. If you have received another double glazing quote, Winplex can help you review the key inclusions so you can better understand the difference between each option.
Ready to compare your quote?
Make sure you know what is included before choosing your double glazing supplier.
Compare My Quote