Pratley & Partners

Natural & smoke ventilation specialists

As specialists in natural & smoke ventilation systems, we help commercial enterprises and private homeowners create healthier and safer indoor environments.

Dedicated & Experienced Team

Since our formation in 1965, LJ Pratley & Partners Ltd has succeeded in becoming market leader in all aspects of natural ventilation and smoke ventilation and the preferred partner for many window fabricators, architects and main contractors. We strive to provide excellent customer service, ensuring projects are completed on time and in budget and work is carried out to the highest professional standards. Our dedicated team use their specialist knowledge and experience to provide sound advice and guidance throughout the design, supply and installation process while also ensuring maintenance, service and responsive repairs are conducted with the minimum amount of disruption.

About Pratley & Partners

Our Window Control Systems

The family values that the company were founded upon still remain to this day.

We supply and install manual window openers and controls, natural ventilation,natural smoke and heat exhaust ventilation systems enabling customers to meet the requirements governing natural ventilation in all environments. We are lucky enough to have specialised on many bespoke window openers and systems and to have worked in some of the UK's most prestigious venues including historical landmarks such as Buckingham Palace and St Pauls Cathedral as well as modern projects such as The Gherkin and Olympic Park Stratford.

Why Choose Us?

Excellent Customer Service

Excellent Customer Service

Ensuring our customers receive an outstanding level of customer service is at the cornerstone of everything we do.

50 Years Experience

50 Years Experience

The vast knowledge and expertise we have developed over the last 50 years has established us as market leaders in our industry.

Specialists in Window Controls

Specialists in Window Controls

As recognised specialists, our customers can be confident they will receive the best advice and product innovations the market has to offer.

Help & Advice

What is Fluorinated Gas and Why Do We Use It
Blog post date Tuesday, 11 December 2018

What is Fluorinated Gas and Why Do We Use It

You can’t walk more than a hundred yards in any busy city and not be close to some piece of machinery that uses fluorinated gas. For a start, it’s found in the majority of refrigeration devices. If your office ...

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Workers in an open airy office
Blog post date Wednesday, 21 November 2018

The impact of workplace ventilation on employee productivity

Ventilation is an important factor and it needs to be considered carefully in the workplace. Ventilation is the process whereby polluted air is replaced by clean air. Ventilation can be produced in many differe...

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Ultraflex Control Systems
STG Beikirch Ventilation Systems
Window Master Natural Ventilation
Clearline Window Controls