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Advanced acoustic & insulating double glazing that never compromises on style

Are you looking to improve the comfort and energy efficiency of your home? Ventrolla offers top-quality Double Glazing solutions that not only enhance your property's insulation but also add a touch of elegance to your living spaces. With our Double Glazing Windows, timeless beauty and energy efficiency converge.

Tailored to a wide range of property styles, we have over 35 years of experience crafting and installing quality double glazing timber windows designed to enhance thermal efficiency and security while reducing noise pollution.

Double Glazing Features

What makes our double glazing unique?

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Reduced noise levels up to 65%

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Reduced heat loss up to 50%

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Bespoke traditional & heritage styles

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Custom fit to your property with care

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Local expertise, national coverage

bay sash window

What is Double Glazing ? 

Preserve Tradition, Enjoy Modern Benefits

Double glazing is a construction technique that involves using two layers of glass separated by a small gap to create a sealed unit. This sealed unit can be filled with an insulating gas like Xenon, Krypton, or Argon gas.

Double glazing windows offers a range of benefits, including :

  • Reduced external noise
  • Reduced heat loss
  • Reduced condensation on your windows
  • Reduce your energy bills
  • Add value to your home
  • Increased security
Find Out More
Sash Windows Painted Shut - Ventrolla - 1080

New Double Glazed Timber Sash Windows

First and foremost, our double glazed timber sash windows are crafted to protect exquisite British Georgian, Victorian, and Edwardian architectural heritage from the ravages of time. Coupled with our unique blend of time-honoured joinery skills and future-proof technology, this is what sets our timber double glazing sash window products apart from the rest.

Combined with efficient slimline double glazing, conservation-friendly secondary glazing, or single glazing to suit the most restricted locations, you can count on Ventrolla products to deliver the perfect balance of improved energy efficiency, security, and prized period aesthetics.

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white timber casement window

New Double Glazed Timber Casement Windows

From elegantly understated Georgian casement windows to ornate Victorian and Edwardian casements and everything in between, our timber casement windows are crafted for absolute convenience. Coupled with our unique blend of time-honoured joinery skills and future-proof technology, this is what sets our timber casement window products apart from the rest.

Combined with efficient slimline double glazing, conservation-friendly secondary glazing, or single glazing to suit the most restricted locations, you can count on Ventrolla products to deliver the perfect balance of improved energy efficiency, security, and prized period aesthetics.

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Our Process

1

Consultation

The Ventrolla journey begins with a discussion with a member of our team and/or a detailed home or site design survey, to explore your ideas & devise a bespoke plan of action.

2

Estimate

Once our team have finalised the plans, we will provide a comprehensive estimate for your works. Enquiry to estimate typically takes between 5 and 10 working days.

3

Design

Ventrolla fuse traditional skills with modern technology. If you require new joinery, creating your unique product begins in our UK-based manufacturing facility, and takes between 6 and 10 weeks.

4

Installation

The utmost care is taken to deliver quality products and renovation works that exceed our customers’ expectations. Varying from area to area, Ventrolla lead times depend on how busy we are, and the work required. On average, our installation team will be on site between 6 to 18 weeks from the date your order is placed. We will advise guide installation dates when you place your order.

5

Aftercare

Our customers come back time and time again – when they move or if they’ve phased their works – all thanks to our exceptional customer service and after care. In the unlikely event that your Ventrolla products require expert attention, we’re always on hand.

6

Guarantee

Renowned for delivering outstanding quality, all our work comes with a minimum 5-year guarantee (subject to terms), for absolute peace of mind.

What our customers are saying

Ventrolla were able to beat all the other quotations that I received and answered queries quickly and informatively, making changes as required promptly and without fuss. I was kept informed throughout of lead times and manufacturing times. The real stars of the show were Rob and James who worked tirlessly and brilliantly as a team to repair sash boxes where required and install our new sashes. Thank you!

Stephen

Everybody I dealt with has been super friendly, informative, and helpful. I received emails with updates on what was happening, etc. It has been a great experience from start to finish.

Cai

I used Ventrolla to renovate my sash windows over to years ago. When two of them finally collapsed, including a bay window the size of three full sized Georgian windows they were my first contact. The office staff, surveyors and the three fitters that did an amazing job installing them in less than two days were all excellent. The quality of workmanship and the standard of installation were first class, and the new windows look amazing. I will definitely be using them again as more of my windows will need replacing over the next few years.

Alastair

This is the second property Ventrolla have restored my windows for me, and the this job was every bit as good as the first. 14 sash windows in a Grade II listed building installed/refurbed without a hitch in week. The team of 4 installers were lovely chaps, super efficient and tidy. All round another fabulous job done – thank you the Ventrolla Team

Giles

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Frequently Asked Questions

I live in a listed building / conservation area / AONB - can you work on my property?

We have completed lots of work over the years on listed properties and those within conservation areas and Areas Of Outstanding Natural Beauty (AONB). Working closely with local conservation and planning officers, English Heritage, Historic England, Historic Scotland, and Cadw, you can trust Ventrolla to reinstate and sustain unique architectural features whilst simultaneously heightening historical value.

Will double glazing reduce outside noise levels?

Good quality double glazing will reduce sound levels by between 20% and 65%, which means that double glazing can potentially reduce noise levels by 35 dB. All new double glazing comes with a rating that indicates the level of sound insulation provided. You will see this marked as RW (Weighted Sound Reduction Index).

Do you offer an installation guarantee?

Yes, our work is guaranteed for 5 years.

What is the average cost of renovating a window with double glazing?

It all depends on how much work each window needs. For a more accurate estimate, please call us on 0800 0277 454 to arrange a free, no-obligation survey.

How long does it take to install double glazing?

The time taken will vary depending on the result e.g., your survey and the work we identify is needed. Typically, we work to a one-window-per-day time scale, although this can be adjusted, if necessary, to suit your requirements or our schedule.

Varying from installation to installation, our average timescale targets are

  • Enquiry to quote: 5-10 days
  • Quote to order: 30 days
  • Order to installation: 10-16 weeks

Can wooden framed windows be double glazed?

A Seamless Blend of Time-Honored Timber and Contemporary Double Glazing. Timber stands as an ideal option for window frames due to its exceptional thermal efficiency and non-conductive properties. Combine this with double glazing, and the result is an A-rated double-glazed window.

Got questions that haven't been covered? Visit our FAQs or speak to our friendly team today:

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