
Are you looking for the best double-glazing installers? You’re in the right place. We can help you find trusted installers and give you access to funding options that can reduce or even cover the cost of replacing your windows and doors.
Click Here to Get a Quote & Find Out About Grants & Funding
Upgrading to double glazing comes with major benefits. It’s why all new-build homes in the UK are now required to have double-glazed windows as standard. Most are fitted with uPVC frames for added energy efficiency, insulation, and durability.
But many homes across the country were built decades ago, before these regulations came in.
If you’re in an older property, you may still have single glazing or early-generation double glazing that’s seen better days.
That puts you at a disadvantage when it comes to energy bills, security, and comfort.
Even if your windows are technically “double glazed,” worn-out seals, draughts, or condensation between the panes could mean they’re due for a replacement.
Once you decide to replace your windows, then, you must search for the best double glazing installers around. Additionally, you must find installers who are affordable and fit your budget.
This creates one significant issue for many property owners; you may be unable to afford the total cost of UPVC windows/doors double glazing installation.
That’s where Double Glazing Funding comes in
We help homeowners
- Find reliable double-glazing installers near them
- Compare options that fit their needs and budget
- Access funding or grants to ease the cost of installation
If you’re ready to upgrade your windows or doors, but worried about the cost, keep reading. This guide walks you through how it all works, and whether you qualify for support.
Check if you qualify for grants, funding, or incentives
There are three main funding options available to help with the cost of new double-glazed windows and doors. We’ll explain each one in more detail throughout this guide.
But first, let’s check if you qualify.
These grants and funding options aren’t open to everyone. They’re reserved to support homeowners who want to improve their property but need financial help to do so.
You’re more likely to qualify if:
- Your current windows are broken, leaking, or letting in draughts
- You’re seeing heavy condensation between panes
- Your existing double glazing is old or no longer energy efficient
It only takes a few minutes to check your eligibility. Our quick Grant Checker tool asks a few basic questions, such as:
- Your postcode
- The number of windows you need to replace
- How many external doors you’re replacing
- Whether you’re the owner of the home
- Your main reasons for replacing the windows (e.g. draughts, leaks, condensation, aesthetics, or security)
Then, we need personal details to contact you, and you can check your qualification status.
UK Homeowners could be eligible
- Reduce Your Energy Bills
- Free No Obligation Assesment
- Increase Your Home Value
- Rated #1 On Trustpilot
do you qualify?
From here, you’ll be presented with three different funding options to help you pay for installing your new uPVC windows and doors with double glazing.
Below, we’ll run through each funding option and how it can help you out.
Free Windows & Doors Help2Buy Windows Grant
*Qualifying criteria apply
Depending on your circumstances, you may be eligible for a free installation of brand-new uPVC windows and doors through the Help2Buy Windows Grant.
This grant covers the full cost of installation. Naturally, this grant is the most affordable option available as it will cost you nothing to get a new set of windows and doors.
However, it’s typically reserved for specific situations and is assessed on a case-by-case basis.
Your chances of meeting the qualifying criteria for this grant increase if you can prove your home needs new windows and doors.
For example, you’re more likely to qualify for new windows if your existing windows are:
- Damaged or broken
- Letting in draughts or moisture
- No longer secure or energy efficient
This grant is not linked to the UK Government’s Help to Buy scheme for homebuyers. It’s funded entirely by Help2Buy Windows, with money raised through the sale of leads to accredited installers.
The goal is simply to support homeowners who genuinely need new double glazing but can’t afford the upfront cost.
Thousands of households across the UK still live with outdated or single-glazed windows, which makes it harder to stay warm and manage energy bills.
If this sounds familiar, replacing your windows could reduce your energy use and cut your bills significantly over the year.
Even if you’re unsure whether you meet the criteria, it’s worth checking. There’s no cost to apply, and you may still qualify for one of the other funding options.
Window & Door Funding
*Qualifying criteria apply
If you don’t qualify for the Help2Buy Windows Grant, don’t worry. There’s still another way to replace your window and door affordably.
This funding option lets you spread the cost of installation over time, so you don’t have to pay everything upfront.
It makes double glazing and uPVC door upgrades more manageable for households who can afford the improvement but prefer not to drain their savings.
We work with trusted installation partners across the UK, and many offer their own flexible finance options. These aren’t provided directly by Help2Buy Windows, but we’ll connect you with vetted, reputable companies who deliver quality work at fair prices.
Each installer offers slightly different terms, but the idea is the same. You get the windows and doors you need now, and pay for them over time in smaller, budget-friendly instalments.
Why this option works for many homeowners
Let’s face it, dropping thousands of pounds in one go isn’t realistic for most people. Even if you could cover the cost outright, it might leave you stretched thin and living on scraps for months. As you may have spent most of your bank account balance.
This funding option gives you breathing room. Unlike a personal loan, there’s usually no deposit required, and many options come with low or even 0% interest.
Once you’ve filled out your grant check, we’ll assess your details. If you fail to qualify for the primary grant, this option will always be open.
We’ll match you with an installer who offers suitable finance options. They’ll walk you through their terms, so you know exactly what to expect.
While we can’t provide you with a full list of funding options available, we can show you a few of the possibilities that our partners have offered in the past:
- 36 months interest-free credit
- 24 months interest-free credit
- Buy now, pay in 12 months
- Low-rate monthly payment plans
Best 4 Less Guaranteed
If you’re planning to buy your new uPVC windows and doors separately, and then find an installer to fit them, then the Best 4 Less Guaranteed scheme is perfect for you.
It’s a smart, cost-saving way to buy directly from the manufacturer and cut out the middlemen that usually drive up the price.
You can buy your UPVC doors or windows directly from the manufacturer. This completely cuts out all the typical wholesale and retail costs of buying new windows.
Usually, when you go to buy from a retail company, the windows (or doors) have already changed hands several times. The manufacturer sells them to a distributor who sells them to a wholesaler, who sells them to retail companies.
Each company in the supply chain, adds their own markup. So, by the time the product reaches you, you’re paying far more than you should.
UK Homeowners could be eligible
- Reduce Your Energy Bills
- Free No Obligation Assesment
- Increase Your Home Value
- Rated #1 On Trustpilot
do you qualify?
An Example
A manufacturer might sell a door for £1,000
- A wholesaler adds their profit and sells it on for £1,200
- A retailer then adds another margin. Now it’s £1,500+
That’s a 40% price hike, before you’ve even paid for installation. But, with Best 4 Less, you go straight to the manufacturer. Instead of dealing with inflated prices.
We only deal with the country’s most prominent and respectable installers, so quality is 100% guaranteed. You will not find better quality or value out there at all.
Why it’s better:
- Up to 40% cheaper than buying through traditional retail
- Quality guaranteed: products go straight from the factory to your home
- No quality loss from too many handling stages
- Faster turnaround and full transparency
If you’re budget-conscious but don’t want to compromise on quality, the Best 4 Less Guarantee is one of the most effective ways to make your installation more affordable.
Want help finding a manufacturer and installer that qualify? Click here to check your options.
Find the best double-glazing installers in the UK.

All the funding options and incentives above can help make double glazing more affordable.
But to get the job done properly, you still need the right double-glazing installers.
That’s where we come in
At Double Glazing Funding, we connect you with top-rated, fully vetted double glazing installers, wherever you are in the UK.
Whether you’re upgrading your entire home or just replacing a few windows and doors, we’ll match you with professionals who deliver quality, value, and great service.
Normally, researching installers, comparing quotes, and reading endless reviews can take days. It’s time-consuming, confusing, and stressful. Especially if you’re trying to stick to a budget or deadline.
We do all the hard work for you.
Once you’re ready, we’ll source quotes from trusted, experienced installers in your area. Companies that meet our standards and match your budget.
So you only see relevant quotes.
UK Homeowners could be eligible
- Reduce Your Energy Bills
- Free No Obligation Assesment
- Increase Your Home Value
- Rated #1 On Trustpilot
do you qualify?
What are the benefits of applying for funding?
As you’ve seen, there are some excellent funding options you can apply for. But what do you actually gain by applying?
Well, here are some reasons why it’s worth it:
Get high-quality double glazing
Without funding or incentives, you limit your double glazing and UPVC options. Most homeowners end up shopping on price alone. You want to spend less. And when you’re focused on getting the cheapest quote, quality often takes a hit.
You really shouldn’t risk
buying cheap double glazing, as it’s rarely worth the money. It will most likely result in thinner units, poor insulation, or windows that fog up with condensation within months.
By applying for funding, you can afford better-quality double glazing and uPVC doors built to last and installed by experienced pros.
This leads to fewer repairs and means you keep your windows/doors for longer.
Save a lot of money
If you qualify for the Help2Buy Windows Grant, you could get new windows and doors with zero upfront cost. That’s a major saving. No loans, no interest, no large payments.
All the installation costs are covered, so that’s one less financial burden.
Keep your finances in check
Even if you don’t qualify for the full grant, spreading the cost through one of our trusted installer finance options can make a big difference.
You avoid draining your account balance all in one go, and you don’t have to delay the work. Some options even offer interest-free credit or buy now, pay later plans and then pay in 12 months when you’re more stable.
Either way, you can make improvements to your home without risking financial stress.
Why do you need double-glazing?

Some may be wondering whether all of this is worth it. Yes, it can take a while to get everything in order and finally have your double glazing windows installed. Plus, the installation process can be a bit intrusive.
Contact Double Glazing Funding
However, it’s well worth it because of the benefits double glazing brings to your home – and the quality of your life!
Here’s what you will enjoy when you have double glazing:
Far better insulation: The thickness of double glazing makes it a much better insulator than single glazing windows. As a result, heat is kept in your home, making it warmer.
This is particularly helpful during the colder months, and you can always open your windows during summer to keep your home nice and fresh.
Noise reduction: Are you sick and tired of hearing the traffic from the road outside your home? With double glazing, the window thickness reduces noise, allowing you to enjoy a more peaceful life in the house.
Save money on energy bills: This is the big one! You can save around 30% on your energy bills with double glazing windows. Again, this goes back to their impressive insulation properties as they stop heat from escaping your home.
Improved security: The strength of double glazing makes it much harder to smash than single-glazing windows. As a result, your home is more secure.
Increase property value: As mentioned right at the start of this guide, new builds are made with double glazing throughout. It’s something that’s much coveted by homebuyers, so having double glazing in your home will increase its value.
To improve things, you can pair double glazing with uPVC doors and windows. uPVC is a popular material as it is incredibly durable and robust.
Summary
We’ll finish by saying that double glazing is one of the best home improvements you can make.
So, we urge you to use the Double Glazing Fund to find the best installers and the best funding/incentives out there.
First, check what funding you’re eligible for, and then our team will help you find drivers that suit your requirements.