Emergency Plumbers in Watford & London
24/7 Callouts
- Engineer on site within 2 hours
- Phone answered within 20 minutes
- No call-out fee
- 1-year parts guarantee
- Gas Safe & OFTEC registered
Accredited by
Why Advanced Heating & Plumbing?
Local. Gas Safe registered. OFTEC registered. Trading for 28 years. Trusted by homeowners and landlords across Watford, Hertfordshire, and London.
On site within 2 hours
Gas Safe engineer with you within 2 hours. Phone answered in under 20 minutes.
No call-out fee
Standard call-out and travel always included. Prices quoted in advance — no surprises.
1-year parts guarantee
Every part we fit is covered for 1 year (manufacturer-backed where applicable).
Gas Safe + OFTEC registered
Fully accredited for gas AND oil heating. Which? Trusted Trader.
28 years local
Trading since 1998 from our Watford HQ. Covering Herts and North London.
Fixed price in advance
The price you agree is the price you pay. No additional work over your agreed budget without your approval first.
How we work
Four simple steps — no surprises, no pressure, no nonsense.
Call or book
Phone answered within 20 minutes, or get a free quote via the form. 24/7 for emergencies.
Engineer arrives
Gas Safe engineer on site within 2 hours. No call-out fee.
Free diagnosis + quote
We check the fault, explain it, and give you a fixed price before any work begins.
Work done + guaranteed
Most repairs completed the same visit. 1-year parts guarantee on everything we fit.
Our services — 2026 pricing
Standard call-out and travel included. Prices exclusive of VAT. Full Gas Safe / OFTEC service across Watford, London and Hertfordshire.
Boilers
- Boiler Repair£120–£450 +VAT
- Boiler Service£90–£140 +VAT
- Boiler Installationfrom £1,800 +VAT *
- Emergency Boiler Repair£180–£600 +VAT
- Electric Boilersfrom £80 +VAT
- Oil Boilersfrom £120 +VAT
Heating
- Heating Engineer£89–£168.50/hr +VAT
- Central Heating Engineers
- Radiator Repair£120–£350 +VAT
- Power Flushing£350–£800 +VAT *
- Underfloor Heating
- Smart Heating Controls
Water & Gas
- Water Heater Repair£120–£350 +VAT
- Booster Pumps£120–£250 +VAT
- Water Softener£300–£800 +VAT
- Gas Safety Certificate (CP12)£70–£120 +VAT
- Gas Appliance Service£80–£150 +VAT
- LPG Gas Services
Emergency & Plumbing
- Emergency Plumber£120–£400 +VAT
- General Plumbing£89–£168.50/hr +VAT
On site within 2 hours. Phone answered within 20 minutes.
📞 0800 328 0449* Power flushing, boiler installation, and underfloor heating repairs are subject to site conditions. See all services for pricing caveat.
Frequently asked questions
How quickly can you get to me?
Gas Safe engineer on site within 2 hours. Phone answered within 20 minutes. We cover Watford, Hertfordshire, North London and Middlesex from our Watford HQ.
Is there a call-out fee?
No. Our standard call-out and travel are included in the price. You only pay for the work — and we quote before we start.
Are you Gas Safe and OFTEC registered?
Yes. Gas Safe registered for all gas work, OFTEC registered for oil heating. We also hold Which? Trusted Trader accreditation — AHP has been trading since 1998.
Do you cover my area?
We serve our usual radius from Watford across Hertfordshire and North London — including Watford, St Albans, Stevenage, Enfield, Islington, Harrow, Ealing and others. Further afield is quoted separately.
What do you guarantee?
1-year parts guarantee on everything we fit (manufacturer-backed where applicable). Labour is backed by our workmanship standards — if a repair does not resolve the fault, we come back.
How much will the work cost?
Our services are priced in ranges reflecting typical jobs — for example, boiler service £90–£140 +VAT, boiler repair £120–£450 +VAT. We always quote the exact price before any work begins.
Boiler broken? Need a plumber?
Engineer on site within 2 hours. Phone answered within 20 minutes. No call-out fee.