• KBS Builders Merchants, 657 Woolwich Rd, London SE7 8LH


The Best Ventilation Supplies in London

A proper ventilation system acts as the lungs of a building, without which they become susceptible to stale and stagnant air because there’s no control over the airflow. But how do you ensure that your ventilation system is working properly? It’s by using quality ventilation accessories from a reliable ventilation supplier. Yes, those small parts are the strongest links that keep the system running. That’s why, as one of the best ventilation suppliers in London, our goal is to provide you with the best ventilation accessories. From plastic and clay air bricks to vents and retaining clips, we have them all. So, if you’re someone who provides ventilation services or have been looking online for a “leading ventilation supplier”, reach out to KBS for Building Materials Supply or order products from our website.

Different Types of Ventilation System

Good ventilation not only ensures a supply of clean air but also helps to get rid of harmful toxins and gases. It provides a healthy environment for breathing. Ventilation can take several forms.
  • Natural Ventilation: It’s the most familiar and ideal form of ventilation. It means having a constant supply of fresh air from outside through natural sources of ventilation such as doors, windows, holes and gaps.
  • Mechanical Ventilation: This type of ventilation circulates fresh air using fans, ducts and vents rather than relying on natural ventilation. Fans are installed directly into the windows, walls or air ducts to bring in fresh air and push out stale air. There are three types of mechanical ventilation:
(i) Exhaust Ventilation: This reduces the air pressure of the building by driving out the indoor air through exhaust fans and a ducting system outside. Fresh air enters through a different source, usually an air vent or holes and gaps in the building’s structure. (ii) Supply Ventilation: It increases the inside air pressure of the building by drawing outside air into the building through supply fans and ducts. The indoor air then escapes through air vents or faults in the building enclosure, such as cracks or holes. (iii) Balanced Ventilation: It’s a combination of exhaust and supply ventilation systems in which both exhaust and supply fans are used to maintain the airflow throughout the building. (iii) Heat Recovery Ventilation (HRV): Also known as Mechanical Ventilation Heat Recovery (MVHR) system, is an air-to-air heat exchanger. Rather than just replacing inside air with fresh air outside, it extracts heat from the air that is being pushed out and then passes it to the air that is being brought in. It helps reduce your energy bills by recovering the usually wasted heat.
  • Hybrid Ventilation: It’s a combination of natural and mechanical ventilation systems in which the air gets circulated through doors, windows, exhaust fans, ducts and vents.
  • Smoke Ventilation: This ventilation system is installed in buildings as a safety measure to protect the people inside from inhaling smoke in the event of a fire. The airflow is maintained as the smoke escapes through windows, roofs or sky vents. This helps in evacuation and fire control measures.
Your search for a “reliable ventilation supplier near you” ends here with KBS Builders Merchant. Place your orders online or speak to us if you want help selecting the right type of ventilation fittings for your home, office or warehouse.

Choose KBS Builders Merchants for Ventilation Work

You’re our strength, and without your satisfaction, our efforts become insignificant. As responsible ventilation suppliers in Kent, we want the best for you, and so we strive to better ourselves each day to deliver quality products to you. Here is why you should choose us as your ventilation supplier:
  • Convenience: With the ease of buying ventilation accessories online, you no longer need to go from shop to shop to get specific ventilation fittings.
  • Timely Delivery: We put genuine efforts to make sure your orders are delivered on time within the same day or the next.
  • Experience: For over 20 years, architects, builders, public organisations and homeowners have come to depend on us for our expertise in supplying quality products.
  • Wide Range of Products: We have a wide range of ventilation accessories that are widely used in ventilation services.
  • Affordability: As mindful ventilation suppliers in London, we understand the constraints associated with a limited budget. So, we strive to provide cost-effective solutions that don’t break the bank.
  • Expert Handling: Our delivery team is well-trained to handle all types of shipments with great care and necessary skills.
  • Customer-focused Approach: We, as a ventilation supplier, follow a personalised approach to serve our clients or customers better. Our support team is available at all times to listen to your concerns.
Get in touch with KBS if you have been wondering for days, “Where can I find a trusted ventilation supplier near me to get quality ventilation fittings?”. Shop online from our wide range of products. With us, you can rest assured that your products are coming from a genuine building materials supplier in Surrey, preferred by companies providing ventilation services.


1. How do you ventilate a room without windows?
You can ventilate a room without windows by installing extractor fans, air vents and ducts from a good ventilation supplier.
2. What is the best way to ventilate a kitchen?
The best way to ventilate a kitchen is to either open windows or install an extractor fan.