How are aluminium windows installed?

Aluminium window installation involves: - Removing old frames (if replacing) - Preparing the opening - Fitting and securing the new aluminium frame - Sealing for insulation (usually using silicone or polyurethane) - Finishing internally and externally [Hire a professional aluminium window installer](https://www.checkatrade.com) and they’ll sure you get a airtight fitting that’s compliant with [Building Regulations](https://www.checkatrade.com/blog/expert-advice/building-regulations/).

How long does aluminium window installation take?

Most standard window replacements take a **few hours per window**. A full property installation may take one to three days depending on the size and complexity.

Do aluminium windows reduce condensation?

Modern aluminium windows use thermal break technology and energy-efficient glazing to minimise condensation. Proper ventilation also plays an important role. **Tip:** Our [how to stop condensation on windows guide](https://www.checkatrade.com/blog/expert-advice/how-to-stop-condensation-on-windows/) has lots more tips and solutions.

Should I replace 20-year-old double glazing?

If your windows are draughty, misted or inefficient, upgrading to modern aluminium double glazing can improve insulation, security and kerb appeal. Get a local aluminium window installer to take a look. They can advise on whether [window repair or replacement](https://www.checkatrade.com/blog/expert-advice/repair-or-replace-windows/) is best.

Do aluminium windows add value to a property?

Yes. High-quality, energy-efficient windows can make your home more attractive to buyers, particularly in modern or renovated properties.

Is hiring a professional aluminium window installer worth it?

Because windows affect insulation, security and structural integrity, professional installation is essential. An experienced aluminium window installer will: - Make sure it’s compliant with UK Building Regulations - Provide FENSA or equivalent certification where required - Deliver airtight fitting and proper sealing - Offer workmanship guarantees

How to find skilled tradespeople for aluminium windows installation in [location]?

To help you find checked and reviewed tradespeople for aluminium windows installation in [location], consider these tips: - Read online reviews to determine their reputation and quality of work - Verify their public liability insurance, so you know they’re covered against any potential accidents or damages - [Get multiple quotes](https://www.checkatrade.com/post-a-job) from at least three tradespeople so you can compare prices and services - Use Checkatrade and **hire one of our approved members that have undergone up to 12 checks** so that you can hire with confidence

Aluminium Windows Installation in Thornbury (17)

Which Thornbury are you looking for?

Describe your job

Give us the details of your job and we'll send it to specialist trades for you

Describe your job

Receive multiple quotes for your job from reviewed and trusted tradespeople

Sort by:

Sponsored
Britannia Windows (UK) LTD
8.88
(192 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
UPVC Windows Installation
Orangeries
Aluminium Doors Installation
Call
Sponsored
U
UPVC Window and Door Repairs LTD
9.52
(7 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Misted Double Glazing
Bay Windows Installation
Stable Doors
Call
Westerleigh Windows
9.81
(27 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Double Glazing Installation
Bifold Doors Installation
Exterior Doors Installation
Call
Britannia Windows (UK) LTD
8.88
(192 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
UPVC Doors Installation
Patio Doors Installation
French Doors Installation
Call
Manor Windows Ltd
9.57
(33 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
UPVC Doors Installation
Patio Doors Installation
Porch Installation
Call
Cotswold Conservatories
9.78
(90 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Porch Installation
Aluminium Doors Installation
Triple Glazing Installation
Call
ZEN Windows and Conservatories
10.00
(182 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Timber / Wooden Windows Installation
Windows and Doors
Misted Double Glazing
Call
Acute Design, Windows, Doors and General Builders
10.00
(52 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
UPVC Windows Installation
Exterior Doors Installation
Bifold Doors Installation
Call
J B Window Solutions
9.81
(43 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Exterior Doors Repair
Door Canopies
Porches Repair
Call
Shaun Lynch Maintenance
10.00
(25 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
French Doors Installation
Bifold Doors Installation
Windows and Doors
Call
L H Building Services (Bristol) Ltd
9.64
(176 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Aluminium Doors Repair
Bifold Doors Installation
Triple Glazing Repair
Call
Brill Upvc
8.67
(19 reviews)
Operates in Thornbury
Services & skills
Windows / Doors / Conservatories
Aluminium Windows Installation
Double Glazing Installation
Misted Double Glazing
Window Fitters
Call

Top rated Aluminium Windows Installations in Thornbury

/10

211 ratings

Our Aluminium Windows Installations in Thornbury are rated an average of 9 out of 10 based on a sample of 211 reviews from customers like you*

*This review aggregate is based on real customer reviews from a randomly selected postcode in this area

Find Aluminium Windows Installation in Thornbury

Looking to upgrade your home with aluminium windows installation to replace old double glazing or fit windows in a new extension?

Read on for everything you need to know about finding and hiring professionals for aluminium windows installation covering Thornbury.

Rather we do the searching for you? Try our quick request a quote feature and we’ll put you in touch with aluminium window installers in your local area.

How much does aluminium windows installation cost in Thornbury?

Expect to pay between £4778 and £13196 , with an average cost of £8076.

That said, larger properties or bespoke designs will cost more.

For accurate pricing, it’s best to get at least three quotes from local aluminium window installers.

Tip: Find out more about prices in our aluminium windows cost guide.

Are aluminium windows better than uPVC?

Whether aluminium windows are better than uPVC depends on your priorities:

Aluminium offers slimmer frames, a modern look and exceptional durability
uPVC is usually cheaper and still provide strong insulation

Aluminium is often chosen for contemporary homes or large glazed areas, while uPVC suits tighter budgets.

Are aluminium windows more expensive than uPVC?

Aluminium windows generally cost more upfront than uPVC due to material strength, manufacturing processes and aesthetics.

However, aluminium frames are long-lasting and low maintenance, which can make them cost-effective over time.

Tip: Our cost of aluminium windows vs uPVC guide helps you weigh up the pros, cons and prices of both.

What are the disadvantages of aluminium windows?

While aluminium windows are strong and stylish, potential downsides include:

Higher initial cost
Can feel colder to the touch (although modern thermal breaks reduce heat loss)
Fewer budget options compared to uPVC

That said, choosing high-quality windows helps improve energy efficiency, which could save you money in the long run.

What is the lifespan of aluminium windows?

Aluminium windows are extremely durable and can last 30–45 years or more when properly installed and maintained.

They resist warping, rust and weather damage, making them well suited to UK conditions.

Why use Checkatrade?

Fully checked installers covering your local area
Insurance always listed
Easy to compare multiple profiles
Handy reviews from local customers
Covered by the Checkatrade Guarantee (T&Cs apply)

Looking for more tradespeople in Thornbury?

Find Checkatrade reviewed Tradespeople, get a quote today, discover related services in Thornbury and check out our latest home improvement guides.

Aluminium Windows Installation in Thornbury (17)

Which Thornbury are you looking for?

Search results

Describe your job

Describe your job

Britannia Windows (UK) LTD

Services & skills

UPVC Window and Door Repairs LTD

Services & skills

Westerleigh Windows

Services & skills

Britannia Windows (UK) LTD

Services & skills

Manor Windows Ltd

Services & skills

Cotswold Conservatories

Services & skills

ZEN Windows and Conservatories

Services & skills

Acute Design, Windows, Doors and General Builders

Services & skills

J B Window Solutions

Services & skills

Shaun Lynch Maintenance

Services & skills

L H Building Services (Bristol) Ltd

Services & skills

Brill Upvc

Services & skills

Find Aluminium Windows Installation in Thornbury

How much does aluminium windows installation cost in Thornbury?

Are aluminium windows better than uPVC?

Are aluminium windows more expensive than uPVC?

What are the disadvantages of aluminium windows?

What is the lifespan of aluminium windows?

Why use Checkatrade?

Looking for more tradespeople in Thornbury?