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Window, door & glazing experts in St Albans.
Hundreds of 5 star reviews online. Checkatrade approved.
FENSA Registered - Which? Trusted Trader.

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Ideal Glass replaced a very large pane (almost 4 metres) in our conservatory today, and the whole job was handled brilliantly from start to finish. A big thank you to Josh, George and Barney, who were professional, friendly and efficient throughout. It’s not a small or simple job, but they made it look easy, worked carefully and left everything tidy when they were done. I’d happily recommend them to anyone needing glazing work, especially anything more challenging. Thank you again, team!

Halima Sadiq

★★★★★ 2 weeks ago

Great job and quality fitting on new timberlook patio doors. Josh and George were efficient and friendly, making no issue of the tight angles to navigate the doors through into the flat and giving clear explanations and updates throughout the fitting process. They completed the fitting from start to finish in just over 3 hours. Finished product is brilliant and makes a huge difference for security, heat insulation and noise suppression. Before and after photos attached here

Oliver Johnson

★★★★★ 3 weeks ago

Ideal Glass installed a pair of French doors for us in a garden room in December 25. Over the last 10 months the doors have naturally dropped and the hot weather may have shrunk the structure. Ideal Glass sent their Installer George to carry out a service visit. He realigned the doors successfully and serviced the key components in about 20-30 minutes. As it was within a year of installation they did this free of charge. Excellent quick and courteous service. James

James Gaffney

★★★★★ 2 weeks ago

Ideal Glass = Prompt professional service.

Dale Abbiss

★★★★★ 27 Aug 2026

FENSA Registered

Our St Albans window installations are inspected by FENSA & guaranteed to comply to national building regulation standards.

Checkatrade Approved

Interviewed, DBS checked & approved by Checkatrade. Ideal Glass are your trusted local St Albans home improvement company.

10 Year Guarantee

Ten year insurance backed guarantee as standard with all of our St Albans window and door installations, giving you complete peace of mind.

Flush uPVC Double Glazed Window Installation

Your Premier Window, Door and Double Glazing Supplier throughout the South East of England

Welcome to Ideal Glass, Hertfordshire’s trusted specialist in high-quality double glazing solutions. We supply and install a wide range of window and door products, designed to enhance the look, energy efficiency, and security of your home. Our extensive product selection includes double and triple glazed windows crafted from uPVC, aluminium, and timber, providing you with options that suit any style and budget. In addition, we offer premium uPVC and aluminium sliding and bifolding doors, perfect for adding both function and style to your living spaces.

With a fantastic reputation across platforms like Google, Checkatrade, and Yell, Ideal Glass has become a go-to choice for homeowners seeking reliable and professional service. We are proud to be FENSA registered and Checkatrade approved, ensuring our work meets the highest industry standards. Our experienced team is committed to delivering excellence in every project, from the first consultation to the final installation.

At Ideal Glass, we make it easy to get started. We offer fast and free remote quotations, so you can get an idea of the cost and options from the comfort of your home. For a more personal touch, we also provide consultations at your property, allowing us to better understand your specific needs and recommend the perfect glazing solutions. Let us help you transform your home with our expertly installed windows and doors.

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Ideal Glass is FENSA registered

A FENSA certificate isn’t just a nice-to-have, it’s a need-to-have. Because the certification means you’re working with a professional company that will meet two legal requirements and provide you with an important level of protection. Most people haven’t the time, knowledge or inclination to check these three things themselves. So, what are they?

A FENSA certificate is your assurance that the installer who fitted your windows or doors has complied with Building Regulations. It also means that your installation(s) will have been registered with the Local Council. These are legal requirements and proof of them is essential when selling your St Albans home.

In addition, FENSA certificates issued after 6 June, 2014 verify that the installer’s warranty is insured. Reassuring to know if anything goes wrong, and the business gets into trouble.

So remember: you’re not just asking for a FENSA certificate. You’re asking if that window or door installer you’re thinking about using is professional, will comply with Building Regs, register your installation, and offer an insured warranty.

That’s why we say the FENSA certificate is all the proof you need of a job done right.

VIEW OUR FENSA CERTIFICATE

Ideal Glass - FENSA Registration Number 43333

Ideal Glass - St Albans Chamber Commerce

Invest in new double glazed windows, doors, or rooflights

Upgrade your home with a brand-new uPVC window, aluminium front door, or rooflight installed by our expert team. Not only will it enhance your home’s appearance, but it will also help lower your energy bills, boost security, and flood your rooms with natural light.

With extensive experience in the double glazing industry, Checkatrade approval, and a ten-year guarantee on all windows and doors, we’re the trusted double glazing specialists in St Albans, serving Hertfordshire and beyond.

We proudly supply and install high-quality aluminium, uPVC, and composite products for customers across St Albans and nearby areas such as Watford, Barnet, Stevenage, Harpenden, and more.

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