Call or Request
Book online or call direct. Afonso aims for same-day visits wherever possible.
#1 Radiator Repair North London
Cold Radiators or Leaks? Get Heat Back Fast.
Radiator repairs, replacements, balancing, and powerflushing across North London with upfront advice before work starts.
Checkatrade approved
£1M insured
Level 2 qualified
Upfront pricing
Often SameDay
Quick response across North London
All RadiatorTypes
Including older cast iron systems
CheckatradeApproved
Verified reviews, vetted trader
Warranty onAll Work
12-month guarantee on every repair
Google
5.0 RatingRead Google reviews
10/10 Rated14 Checkatrade reviews
10/10 Rated14 Checkatrade reviews
£1M
InsuredPublic liability cover
L2
QualifiedProfessional plumbing work
Action Required
One cold radiator is annoying. Three is a system problem.
When one radiator underperforms, it's usually a balancing issue or a stuck valve - a quick fix. But when half the system is cold and your boiler is working overtime, there's something else going on. Sludge build-up, airlock, a failing pump. The longer it runs like that, the more strain it puts on your boiler. Afonso will diagnose the root cause, not just bleed the radiator and leave.
Book your no-obligation radiator visit today. A qualified local plumber gives clear advice and an upfront price before work starts.
Need immediate help? Call now
Request a Free Estimate
★★★★★ 5.0 on Google · 14 Checkatrade reviews
How It Works
From first call to fixed, handled clearly from start to finish.
Inspect and Quote
Full system inspection, written quote before work starts.
Fixed and Balanced
Repair completed, system balanced, everything tested before leaving.
★★★★★5.0 on Google and Checkatrade Approved
What Our Clients Say
Direct links to Flow Plus Plumbing reviews and profiles.
★★★★★
“Afonso replaced two radiators and re-piped the heating in our living room. The copper work is incredibly neat and the new radiators look fantastic. Would not hesitate to recommend him to anyone in the area.”
David Mitchell
Client · Finsbury Park, N4
★★★★★
“Had an emergency leak on a Saturday afternoon. Afonso answered straightaway and was at my door within the hour. He found the problem quickly, fixed it properly, and the price was completely fair.”
Sarah Reynolds
Client · Holloway, N7
Google
★★★★★
“Brilliant kitchen plumbing work. New sink, mixer tap, and dishwasher connection all done in a single visit. Afonso left everything spotless. I have already recommended him to two of my neighbours.”
James Ashworth
Client · Manor House, N4
Google
Why Choose Us
North London's Reliable Local Plumber
Warranty on All Work
12-month guarantee on every repair
Often Same Day
Quick response across North London
Checkatrade Approved
Verified reviews, vetted trader
Qualified and Insured
Level 2 qualified with £1M public liability cover
Need immediate help? Call now
Book Your Visit
★★★★★ 5.0 on Google · 14 Checkatrade reviews
Book a No-Obligation Call-Out for a Free Estimate, So You Can Get It Sorted Right Away
Tell us what’s happening and Afonso will call back with the next step.
£0
Call-out Fee
Fast
Local Response
Upfront
Clear Pricing
Common Jobs We Handle Across North London
From urgent problems to planned repairs.
Full Radiator Inspection
Every radiator checked systematically - cold spots, leaks, valve condition, balancing.
Written On-the-Spot Quote
You get the price in writing before we start. No verbal estimates that change later.
Honest Repair or Replace Advice
We'll tell you what actually needs doing - not what earns us more money.
Same-Visit Fix Option
Most radiator faults fixed the same visit. Parts carried for common repairs.
£1M
Public Liability Insurance
7
Days a Week
14
Google Reviews
L2
Qualified Plumber
North London Plumbing Coverage
Based in Finsbury Park and covering nearby postcodes and neighbourhoods.
Finsbury Park N4
Holloway N7
Highbury N5
Archway N19
Islington N1
Manor House
Stroud Green
Crouch Hill
Harringay
Tufnell Park
Stoke Newington
Dalston
Crouch End
Hornsey
Turnpike Lane
No Call-Out Charge Radiator Visit + On-the-Spot Quote
“We'll Find the Problem and Tell You the Cost. Before We Start.”
No Call-Out Charge
Get it sorted properly – book your visit today.
- Full Radiator Inspection: We check for cold spots, leaks, airlocks, and pressure issues to find the exact cause.
- On-the-Spot Fixed-Price Quote: No hourly rates, just a clear cost before we start anything.
- Plain-English Diagnosis: We explain what's wrong and whether repair or replacement is the smarter choice for you.
- Same-Visit Fix Option: If you approve the quote, we repair or fit the radiator the same visit where possible.
- 12-Month Warranty on All Radiator Work: So you have complete peace of mind after the repair or installation.
Need immediate help? Call now
★★★★★ 5.0 on Google · 14 Checkatrade reviews
Frequently Asked Questions
Why is my radiator cold at the bottom?+
Usually a build-up of sludge or magnetite settling at the bottom of the radiator, which restricts flow. A powerflush or targeted flush can clear it. Afonso will advise whether that's needed.
Why is my radiator cold at the top?+
Air trapped in the system. Bleeding the radiator usually solves it - but if it keeps happening, there may be a deeper pressure or pump issue worth investigating.
Is it worth repairing or replacing?+
Depends on the age and condition of the radiator and the rest of the system. Afonso will give you an honest assessment, not push you toward the more expensive option.
Do you charge a call-out fee?+
No. There's no call-out charge. You pay for the work quoted and agreed upfront.
What's a powerflush and do I need one?+
A powerflush clears sludge and debris from your central heating system. It's worth considering if multiple radiators are underperforming or if your boiler is working harder than it should.
Do you offer a warranty?+
Yes. 12 months on all radiator repair and replacement work.
How quickly can you come out?+
Often same day across Finsbury Park, Holloway, Highbury, Archway, Islington, and surrounding areas.
Are you Checkatrade approved?+
Yes. Verified reviews at checkatrade.com/trades/FlowPlusPlumbing.
Need a Local Plumber? Speak to Afonso Today.
Fast response, clear pricing, and no obligation to proceed until you’re happy.
07389 869 375 Request Free Quote