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What is Pipe Freezing?

Do you need new or replacement valves? Similarly, are you looking for other general pipe maintenance works?

Firstly, pipe freezing is a non-intrusive pipe isolation method. It is the best way to isolate your pipes. This allows you to make changes without draining the system. Learn more about Pipe Freezing Services, please read our guide.

Pipe Isolation with Liquid Nitrogen Pipe Freezing

This process is simple yet effective, using liquid nitrogen in a controlled method, with specialist equipment and monitoring techniques. Freezing the pipes and their contents will stop the fluid in the system. This allows you to make repairs or replacements safely and easily. Can we help you? We are Cryogenic Pipe Freezing Specialists serving London, Kent, Essex, Surrey, West Sussex, East Sussex, Hampshire and the surrounding areas.

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What is Shrink Fitting Services?

Shrink fitting uses liquid nitrogen to contract metal parts for a precise, interference fit. We chill the component, insert it, and as it warms, it expands to lock tightly in place – no welding or distortion required.

This method is ideal for flanges, sleeves, and rotating parts. It’s clean, reliable, and reduces downtime. We carry out cryogenic shrink fitting services on-site, helping you install components quickly and safely without the need for hot work or complex fabrication. Discover how we helped an energy recovery facility in south London with their shrink fitting project.

What’s more, our services also include Hot Tapping, Pipe Welding, Valve replacement/fitting & more.

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Hot Tapping Services in London

Keep systems running while you upgrade with hot tapping services allows you to connect to a live pipeline without shutting it down. This means you can carry out maintenance, expansions, or tie-ins without disrupting water, gas, or heating services. Our engineers work under pressure conditions, reducing operational risk and keeping buildings fully functional during works.

Save Time, Avoid Drain-Downs, Cut Costs

By using hot tapping technique, you avoid costly drain-down procedures and the delays they cause. We isolate live systems quickly and safely, minimising downtime and labour costs. This approach works perfectly for commercial buildings, healthcare facilities, and schools that can’t afford service interruptions. Learn more about Hot Tapping Services, please read our guide.

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Reliable Industrial Valve Fitting Services

Industrial valve fitting plays a critical role in the safety, efficiency, and performance of pressurised systems. Whether you are replacing a broken valve or adding new isolation points, careful installation is key. This helps prevent leaks, keep control, and follow regulations.

At IDWe Ltd, we install many types of valves. These include gate, butterfly, ball, and pressure-reducing valves. We work on both live and isolated systems at commercial and industrial sites.

Install Valves Without Shutting Down Your System

Our engineers handle valve replacements in heating systems, boosted water mains, process lines, and critical supply networks. When isolating the system is not practical, we use special techniques.

These include pipe freezing or hot tapping. These methods help create a safe, temporary seal. This allows us to fit or replace valves without shutting down entire systems or draining large pipe runs – saving you time and money.

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Pipe Welding Services – Strong, Reliable Pipe Joints

Pipe welding ensures robust, leak-free connections for both new installations and existing modifications. As a trusted pipe welding company, our skilled welders work across commercial, industrial, and plant environments. In particular, they expertly join materials such as steel, stainless steel, copper, and alloys.

Welded systems are made to handle high pressure and extreme temperatures. They work well in tough conditions. These systems also provide clean and compact installations. They need less maintenance too.

Expertise in Diverse Industrial Welding Methods

We offer professional pipe welding services using techniques tailored to your site’s needs. These include MMA for outdoor work, TIG for precision on stainless steel, MIG for speed in workshops, orbital welding for high-spec environments, and FCAW for heavy-duty applications.

Our services extend to live pipe modifications such as freezing and hot tapping, ensuring minimal disruption to your building or operations. Whether for heating systems, chilled water loops, or compressed air networks, we deliver clean, compliant solutions trusted by building managers and contractors.

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OUR SERVICES

Industrial Pipework Services

  • Pipe Freezing

    Are you looking to carry out pipework/valve modifications? Our team can isolate the pipeline using liquid nitrogen – it’s safe, quick, & highly cost-effective method. With the added benefit of not having to drain the system, allowing minimal disruption to business services.

    Learn more

  • Hot Tapping

    Do you need to add a new branch to an existing pipeline? We can carry out a live hot tapping connection to live pipework, without disrupting normal operations. This can be carried out on gas and water systems.

    Learn more

  • Pipe Welding

    Our expert welding team carry out all types of welding – from Gas to Arc, to MIG & TIG, welding either in situ, on-site or at our workshop, where we can manufacture bespoke pipework installations.

    Learn more

  • Isolation/Valve Fitting

    If you need to replace a valve or isolate a pipe, our experienced team adopt a highly efficient method to react to an emergency to reduce any downtime of your systems.

    Learn more
Case studies

Read our recent case studies

ABOUT US

Pipework Isolation Solutions

Leading Provider of Non-Invasive Pipework Isolation Solutions

For over 35 years, our approach is to provide the best possible quality service, with a key focus on being cost effective, having a quick turnaround time and ensuring health & safety. We offer the best price for our highly skilled and experienced team of engineers therefore, you’ll have great customer service coupled with a competitive price – learn more.

Pipe Freezing Company for 35+ years

As a leading Pipe Freezing Company in London, we help facilities stay operational during critical pipework changes. Our engineers provide live pipeline service include: pipe freezing, hot tapping, pipe welding, shrink fitting, valve isolations and more. Across commercial, healthcare, and education sites.

Pipe Freezing Services

We reduce downtime, avoid costly drain-downs, and complete work without interrupting daily operations. Using pipe freezer liquid nitrogen techniques and specialist equipment, we isolate sections safely and precisely, even under pressure. Whether you’re managing a planned upgrade or emergency repair, we respond fast, deliver clean results, and keep your systems running.

How we can help you?

Whether it’s an emergency or planned pipe works, our expert team can help you.

IDWe Ltd are leading commercial and industrial Pipe Freezing Specialists serving London, Kent, Essex, Surrey, West Sussex, East Sussex, Hampshire and the surrounding areas.

35 Years Pipe Freezing Company

The Crown Estate
Mitie
Balfour Beatty
JLL
Integral
Transport for London
London City Airport
BBC
Innovo
Westin
InterContinental
Savoy
Marriott
Canary Wharf
Millennium Hotels and Resorts
Royal museums Greenwich
Excel
Vodafone
Tesco Extra
Veolia
EMCOR
NHS
PwC
Pfizer
Westfield
Canary Wharf
keltbray
cushman wakefield
BGIS
Serco
FFS
Aqualisa
British Library
Metropolitan Gaming
BT
University of Kent
Tate Modern
Ridge
Enfield
JSA Service

Hear From our Clients

Canary Wharf Management

“We just wanted to also provide feedback on all your engineers and how polite they are when attending the office and collecting permits, it really makes a difference.” Retail Permit Co-ordinator

 

NHS

“Fast knowledgeable service and good quality workmanship on all mechanical and electrical work carried out on my buildings.”
Facilities Services Manager

NHS

SGI Building Services Ltd

“IDWe pipe freezing did the pipe freezing with little to no notice, not only did they show up and do a sterling job, their engineers where helpful, professional and most importantly integrated with the other teams they had to work with seamlessly. If you are ever in need of a freeze I would highly recommend.”
Mechanical Project Manager

Building Services

 

Full service list

Other services IDWe Ltd offer

Frequently Asked Questions

Pipe Freezing Services - Meet our Team

Pipe Freezing Services

Providing Pipe Freezing Services to London and the South East

Get a quote today