Gas Boiler Installation in London – Fixed Price, Fast Service & Up to 13-Year Warranty

Looking for gas boiler installation that’s reliable, affordable, and stress-free? At Local Gas London, we make boiler replacement and installation simple, transparent, and cost-effective.

Whether you need a Combi Boiler, System Boiler, or Regular Boiler, our Gas Safe registered engineers deliver professional installation with no hidden charges.

Why Choose Local Gas London for Your Boiler Installation?

• Fixed price installation (labour + all parts & materials, excluding boiler + flue)

• Trade discounts on your chosen boiler & flue

• Flexible booking system – pick your preferred date online

• Fast installation within 2 days

• Free extras included (system flush, inhibitor, scale reducer, smart thermostat, magnetic filter)

• Up to 13 years warranty on parts & labour

• Gas Safe registration + Building Control notification

Step-by-Step Boiler Installation Process

We’ve made it easy! Here’s how your boiler installation works:

1️⃣ Information & Knowledge – Learn about boiler types (Combi, System, Regular). Call our expert for free advice.
2️⃣ Book Online – Select your boiler type, add-on services, preferred date, and pay a £500 deposit to secure your slot.
3️⃣ We Call You – Within 1 hour, we confirm details and answer your questions.
4️⃣ Send Pictures – Email to info@localgaslondon.co.uk with:

• Boiler make & model

• Current boiler location

• Outside flue terminal

5️⃣ Personalised Quote – We recommend boiler packages (Worcester Bosch, Ideal, Vaillant, Baxi, Viessmann & more).
6️⃣ Pick Your Date – Choose your installation day, reserved just for you.
7️⃣ Installation Day – Our engineer arrives (7:30–9:30am), installs your new boiler, and you pay the remaining balance by 3pm (bank transfer, card, or cash).

What’s Included in Our Boiler Installation?

✔️ Professional removal of old boiler
✔️ New boiler installation (same location or upgraded)
✔️ Standard horizontal flue (upgrade available)
✔️ New condensate pipe drain (or pump if needed)
✔️ Full chemical system flush (FREE)
✔️ Smart thermostat installation (FREE)
✔️ Anti-corrosion inhibitor + scale reducer (FREE)
✔️ Magnetic filter installation (FREE)
✔️ Gas Safety Landlord Certificate (FREE)
✔️ Gas Safe & Building Control registration

💡 No hidden fees – the price we quote is the price you pay.

Price Match Guarantee

Found a cheaper like-for-like quote?
👉 We’ll beat it by 5% or give you £50 cashback.

Simply email us to info@localgaslondon.co.uk with:

• Competitor’s fixed price quote

• Picture of your current boiler

• Your name & contact number

We’ll respond within 1 working day!

Boiler Options We Install

We work with all top-rated UK boiler brands:

• Worcester Bosch 

• Ideal

• Vaillant

• Baxi

• Glow-worm

• Vokera

• Main

• Ariston

• Ferroli

• Viessmann

Choose warranties between 5–13 years for extra peace of mind.

Save Money & Energy with a New Boiler

• Old boilers waste up to 50% of gas you pay

• A-rated condensing boilers are 90–97% efficient

• Switching from a G-rated boiler could save you up to £225/year

• Reduce your carbon footprint by upgrading your heating system