Double Glazing in Brentwood

We are PLI insured, offering all types of double glazing work, supporting you from new installations to minor or full replacements, and Planning Permissions. Available 24/7, providing free site visits, consultation, and tailored quotes.

About Us

Double Glazed Doors & Windows Near You

At RR Double Glazing, we specialise in installation, repair, maintenance, and replacement of your uPVC and aluminium double-glazed windows and doors. We cover public liability insurance (PLI) to build trust, offering free site visits, consultations, and quotations with no call-out charges. Available 24/7, we cater to your emergency, urgent, and periodic maintenance needs. Our services relating to double glazing in Brentwood include:

uPVC Double-Glazed Doors & Windows
Aluminium Double-Glazed Doors & Windows
Aluminium Bi-Fold Doors
Standard & Fire-Rated Composite Doors
Sliding Patio Doors
French Doors
uPVC Double-Glazed Conservatories

Get Started with Our Services

How to Know Your Glazing Has Failed?

Common Signs of Double Glazing Problems

Faulty double glazing in Brentwood can reduce thermal insulation, cause draughts, and make indoor temperatures harder to maintain, potentially increasing heating and cooling costs. Contact us if you spot these signs for early remedies:

Draughts: Draughts around your double-glazed doors or windows can be a reason of worn seals, gaps around the frame, or installation issues.
Cracks, Chips, or Damaged Frames: You might need to replace the glazing if there are visible cracks, dents, or chips on the glass.
Condensation: Condensation between the panes is a sign of seal failure, allowing moisture to enter and gas to escape, leaving your doors and windows with milky vision.
Water Leakage: If the glass is leaking in, the reason can be the structure’s blocked drainage, failed weather seal, or poorly installed units.

Testimonials

What Our Clients Say About Us

    
 
 
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   Faiza Memon 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ravi and his team were really awesome . They listened to all my requirements. And produced what they promised at a high level. Ravis finishing is of very high standard and his prices are reasonable. He checks in with when u.. As his progressing through the job . I highly recommend him...
I will deffo use him again going forward !!!
  
 
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   Abdul Mannan Afzal 
 
 
 
 Trustindex verifies that the original source of the review is Google. Great experience with having my kitchen doors and windows replaced. They did all the work and kept the place nice and tidy, very professional
  
 
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   Shally Kolawole 
 
 
 
 Trustindex verifies that the original source of the review is Google. Not only was Ravi, very polite and professional, he was very tidy as well.
  
 
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   Lesley Mitchell 
 
 
 
 Trustindex verifies that the original source of the review is Google. Although it took a long time...12 hours to fit a bay window and a single window they did do a good job..the finish is very good..well worth using them but I've knocked a star off because the mess they left me to clear up
  
 
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   Jigarkumar Patel 
 
 
 
 Trustindex verifies that the original source of the review is Google. Outstanding Service from RR Double Glazing Ltd!

I recently used RR Double Glazing Ltd to repair some faulty double glazed windows in my home, and I couldn't be happier with the results. From start to finish, the service was professional, efficient, and hassle-free.

The team at RR Double Glazing quickly diagnosed the issue—misty panes and worn-out seals—and offered a clear, affordable solution. They arrived promptly, were courteous and tidy throughout the job, and completed the work to a very high standard. My windows now look as good as new, with no more condensation or drafts.

What impressed me most was their honesty and attention to detail. They didn't try to upsell anything unnecessary and made sure I was 100% satisfied before leaving. It’s clear they take real pride in their work.

I would highly recommend RR Double Glazing Ltd to anyone needing window repairs. Reliable, skilled, and friendly—exactly what you want from a local company!
  
 
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   Tracy Anglin 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very polite professional did a great job
Extremely happy with service 5 stars
Would highly recommend
  
 
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   Kamal Miah 
 
 
 
 Trustindex verifies that the original source of the review is Google. Thank you RR Glazing.
Ravy came on time completed measurement and delivered an excellent job.
Clear on his communication, kept me posted, came on time and cleaned area before leaving.
Thank you RR Glazing, highly recommended and will use again.
  
 
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   Miss Don’t trip 
 
 
 
 Trustindex verifies that the original source of the review is Google. Ravi is a professional in his field. He has fitted both of my windows ,one last year in 2024 and one this year 2025. Excellent quality work, great pricing. He is professional, tidy and considerate. Highly recommend you give him a try.
  
 
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   Mojisola Adekoluejo 
 
 
 
 Trustindex verifies that the original source of the review is Google. Very Efficient Calm and very Supportive.
Ravy is a good listener and a very understanding guy, always ready and attentive to detail, very good customer service and quick delivery.

RR double glazing can be trusted to get the job done and at reasonable prices too.

Thank you so much.

Features of Double Glazed Doors & Windows

How Does Double Glazing Improve Thermal Insulation?

We have been helping homes, offices, and commercial buildings maintain comfortable indoor temperatures with our double glazed windows and doors, featuring:

Two Panes of Glass: Double glazing uses two panes of glass to reduce heat transfer.
Insulating Gas Filling: The space between the two glass panes is filled with air or an inert gas such as argon, which helps reduce heat transfer.
Spacer Bars and Airtight Seals: Spacer bars separate the panes, and the airtight seal further improves thermal insulation, preventing moisture from entering and gas from escaping.
Insulated Frame Assembly: The sealed glass units are fitted into a frame that completes the double-glazed window, enhancing the structural integrity and thermal insulation of your double-glazed windows and doors.

Same-Day Services

We focus on addressing your queries as soon as possible, providing same-day solutions whenever you need them.

PLI Insurance Approved

Our company is PLI approved, giving you the peace of mind that all the repairs will be handled professionally and covered financially.

1-Year Guarantee

All our replacements come with a one-year parts and workmanship guarantee, ensuring your peace of mind.

No Call-Out Charges

We don’t charge for site assessment and consultation; you will only need to pay us after the successful repair or installation.

Looking for Expert Double Glazing Installers in Brentwood?

Get the support of our double glazing specialists catering to all of your glazing needs with high-quality double glazing products and full support throughout the journey. Our company is PLI insured to build trust, and the team is available 24/7; call us anytime.

Our Credibility

Why Choose Us?

Call us to fix an appointment at your convenience and benefit from our wide range of client-focused services:

All-inclusive Double Glazing Services: You can have your double-glazed windows and doors installed, maintained, repaired, and replaced, all under one roof.
Prompt Response: Our team is available 24/7 to help you with your queries, and for emergency situations, we also offer same-day services.
Guarantees & Offers: We offer a 1 Year parts and workmanship guarantee for all of our installations and replacements. Save 20% on 3+ window repairs.
Public Liability Insurance: PLI insurance is available; your repairs will be covered financially.
Free Quote and Visits: Contact us to get a tailored quote and get our site assessed without any additional charges.

FAQ's

What does failed double glazing look like?

Condensation between the two panels, cracks, chips, damaged frames, water leakage, and a cool breeze coming inside from invisible spaces can all be signs of failed double glazing. This, however, can be fixed with simple repairs; call us for double-glazed windows in Brentwood.

Do I need a permit for window and door repairs and replacements?

You do not need a “Planning Permission permit” for repairs, maintenance, minor improvements, or replacement of your windows and door frames of the same appearance; however, you will need a permit if the window or door appearance is different from those used in the construction of the house, or if you are adding an extension to the house.

What is the average lifespan of a double-glazed window?

With proper maintenance, the average lifespan of double-glazed windows is 20-35 years, depending on the types of double glazing: 20-30 years for uPVC windows, 30-45 years for aluminium windows, and 30-40 years for timber windows.

What is the average cost of replacing double glazing products?

The cost varies from £500 to £1,200 per window for supply and installation of double glazing replacements. However, if you replace glass units alone, and not the frames, it will cost less.