//LET’S FIX IT
Same Day Boiler Repair
Qualified & Certified Engineers • Fair Prices • No hidden fees
We know a broken boiler can’t wait. That’s why OSO Group offers same day boiler repair across London — with engineers available 24 hours a day, 7 days a week including bank holidays. No waiting days for an appointment. Call before noon and in most cases we’ll have an engineer with you the same day.
We also offer fixed price boiler repairs so you know exactly what you’re paying before we start. No surprise call-out charges, no hourly rate creep — just a clear price agreed on site before any work begins.
⭐️⭐️⭐️⭐️⭐️ 100% happy customers
⭐️⭐️⭐️⭐️⭐️ We aim for 100% happy customers
//CONTACT US
CERTIFIED
GAS SAFE
FAIR PRICES
QUALITY
Our boiler & heating services
- No Heat / No Hot Water Diagnostics – Full system checks for all makes and models.
- Boiler Repairs – Error codes, ignition, fan, gas valve, and general faults.
- Leaks & Pressure Faults – PRV, diverter valves, pumps, AAVs, and expansion vessel recharge/replacement.
- Boiler Servicing & Safety Checks – Annual servicing, flue integrity inspections, and combustion testing.
- Condensate & Flue Issues – Frozen or blocked condensate pipes, flue seal replacements.
- Controls & Thermostats – Installation, repair, and wiring of Hive, Nest, programmers, and room stats.
- Radiators & Valves – TRV replacement, balancing, bleeding, and radiator replacements.
- Pumps & Motorised/Zone Valves – S-plan/Y-plan system repairs and replacements.
- System Cleaning – Powerflush, chemical flush, inhibitor dosing, and filter maintenance.
- Landlord & Commercial Services – Gas Safety certificates, maintenance plans, and compliance work.
- Cylinders & Immersion Heaters – Vented/unvented cylinders, G3-certified installations and repairs.
Quick and easy 4-step journey
01
CONTACT US ➔
Call or message us anytime, day or night. Our team will quickly assess your issue and guide you on the next steps.
02
BOOK AN ENGINEER ➔
We arrange a qualified plumber, gas, electrician or heating engineer near you and confirm the fastest possible arrival time.
03
FAST FIX ON-SITE ➔
Your engineer arrives fully prepared to diagnose and resolve the problem, often completing repairs the same day.
04
JOB COMPLETED
Once the job is done, we ensure everything works safely and efficiently.
//COVERAGE
UK-Wide Coverage
Our certified engineers are on call 24/7, covering all major UK cities and surrounding areas. Whether you’re in Central London, Birmingham, or a nearby town, we guarantee fast response times and expert service. Average emergency ETA ~1 hour.
- Greater London
- Kent
- Oxfordshire
- Southampton
- Northampton
- Bristol
- Birmingham
- Sheffield
- Leeds
- Others
//ABOUT US
Why choose us
- Qualified & Certified engineers (plumbing, heating, drainage; Gas Safe where required)
- Fair, transparent pricing — fixed price or hourly
- Rapid response with reliable ETA — average ~1-hour arrival in covered areas, with live updates.
- OUR WORK-YOUR COMFORT: When the temperature drops, comfort matters. Our Gas Safe engineers keep your heating running safely and efficiently—fixing boiler faults, balancing radiators, and tuning smart controls so every room feels just right
Section: Same Day & Fixed Price Boiler Repair
We know a broken boiler can’t wait. That’s why OSO Group offers same day boiler repair across London — with engineers available 24 hours a day, 7 days a week including bank holidays. No waiting days for an appointment. Call before noon and in most cases we’ll have an engineer with you the same day.
We also offer fixed price boiler repairs so you know exactly what you’re paying before we start. No surprise call-out charges, no hourly rate creep — just a clear price agreed on site before any work begins.
Frequently Asked Questions (FAQs)
//KNOW-HOW
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Having a problem?
We’ll fix it today!
Contact us anytime, our team is always happy to help.