London Shard at night

LONDON'S
TRUSTED
PLUMBING &
HIU
SPECIALIST

From emergency breakdowns and diagnostics to servicing, repairs and replacements, we provide fast, reliable and fully insured solutions for homeowners, landlords and managing agents.

10+ Years Experience
Same Day Appointment
High first time fix rate

Fully Insured

£5M Public Liability

Fast Response

Times

12 Month Warranty

On Workmanship & parts

HIU Specialist

Heat Interface Units

Fully Vetted

Staff

Quality Workmanship

Guaranteed

CoreFlow London engineer greeting a customer at their door

Our Promise

WHY CHOOSE COREFLOW?

We deliver high-quality workmanship, transparent pricing and exceptional service on every single job.

When you need a plumbing, HIU or ventilation specialist, you want more than just a contractor — you want a company that turns up when expected, communicates clearly, diagnoses problems accurately and delivers professional workmanship that lasts.

At CoreFlow London, we combine specialist engineering expertise with exceptional customer service to provide reliable solutions for homeowners, landlords, managing agents and residential developments across North, East and South East London.

Our Promise

Specialist Plumbing, HIU & Ventilation Engineers
Accurate Diagnostics & Effective Repairs
Quality Workmanship Guaranteed
CHAS Accredited
£5 Million Public Liability Insurance
Fully Vetted & Qualified Engineers
Transparent Pricing With No Hidden Charges
Detailed Service Reports & Documentation
Flexible Appointment Availability
Trusted by Homeowners, Landlords & Managing Agents
Preventative Maintenance & Long-Term Solutions
Professional, Reliable & Respectful Service

The CoreFlow Difference

We don't believe in guesswork or unnecessary replacements. We take the time to understand the issue, identify the root cause and recommend the most effective solution for your property.

From your first enquiry through to job completion, you'll receive clear communication, honest recommendations and a professional service designed to give you complete confidence in the work being carried out.

That's why homeowners, landlords and property professionals continue to choose CoreFlow London for their plumbing, HIU and ventilation requirements.

Trusted by Customers Across London

What Our Customers Say

"Professional from start to finish. Arrived on time, explained everything clearly and resolved our hot water issue quickly. Highly recommended."

"Excellent service and communication throughout. The engineer was knowledgeable, courteous and left everything clean and tidy."

"Finally found a company that understands HIU systems properly. Accurate diagnosis, fair pricing and a permanent solution."

"Booked a ventilation service and was impressed with the level of detail in the report provided afterwards. Very professional company."

"Reliable, honest and easy to deal with. We now use CoreFlow London for servicing across multiple properties."

Get In Touch

Speak With a Specialist

Whether you need plumbing repairs, HIU diagnostics, ventilation servicing or expert advice, our team is here to help.

From your first enquiry, you'll receive clear communication, honest recommendations and professional support from experienced engineers who understand your system.

Complete the enquiry form or contact us directly and we'll be in touch as soon as possible to discuss your requirements and arrange a suitable appointment.

Why Contact CoreFlow London?

  • Specialist Plumbing, HIU & Ventilation Engineers
  • Transparent Pricing & Honest Advice
  • Flexible Appointment Availability
  • Fully Insured & CHAS Accredited
  • Trusted by Homeowners, Landlords & Managing Agents
  • Quality Workmanship Guaranteed

Call Us

0203 051 6485

Email Us

info@coreflow.london

Service Area

North, East, East Central & South East London

Request a Callback

Or call directly: 0203 051 6485

EXPERT SUPPORT WHEN YOU NEED IT

Out of hours appointments available for your convenience.

Plumbing Repairs
HIU Diagnostics & Repairs
HIU Servicing & Replacements
Ventilation Servicing (MVHR/MEV)
Internal Drain Unblocking
Expert Advice & Solutions
0203 051 6485

Out of hours appointments available, subject to availability.