Rated 5 Stars By 23 Customers In South London

Central Heating Installation & Repairs in South London

At OJ Gas & Heating, we’re experts in central heating installation in South London, offering everything from full system upgrades to radiator replacements and power flushes. Whether you’re renovating your home, replacing an outdated system, or adding new radiators, we deliver high-quality, energy-efficient heating tailored to your property.

Vaillant advance installer accreditation

Complete Central Heating Services

We handle everything you need to keep your home heated efficiently:

Full central heating system installation
Radiator replacements and upgrades
Thermostatic radiator valves (TRVs)
Smart heating controls
Pipework and system extensions
Power flushing to remove sludge and improve circulation
Fault finding and central heating repairs

With a focus on reliability, efficiency and comfort, our Gas Safe engineers ensure your heating works exactly how it should, all year round.

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Man and women holding an OJ Gas & Heating leaflet

Why Upgrade Your Central Heating System?

More Efficient Heating – Newer systems use less energy to heat your home.
Improved Comfort – Even, consistent heat throughout your property.
Lower Energy Bills – Save money with high-efficiency boilers and thermostats.
More Control – Add smart heating controls and zone your home.
Property Value – Modern central heating boosts your home’s appeal to buyers.

Every property is different, which is why we never take a one-size-fits-all approach

We listen to your needs – hot water demand, number of bathrooms, energy usage
We assess your property – size, insulation levels, existing pipework
We recommend the best-fit solution – based on performance, warranty, and price

Whether you need a brand new install or a system refresh, we tailor everything to your home’s size, layout, and usage.

South London Plumbing, Heating & Aircon Specialists

At OJ Gas & Heating We Promise…

You’ll receive an honest value for your money.
To respect your home as if it were our own.
Our technicians are Licensed and Experienced.

To be available 24 hours a day 7 days a week.
To handle small jobs as seriously as large ones.
To always make your satisfaction our #1 goal.

You’ll struggle to find a more efficient and affordable service anywhere in the area.

Why Do So Many Customers Choose OJ Gas & Heating?

Because they’re tired of:

Trades not showing up on time
Vague quotes that end up costing more
Chasing people just to get the job done

We’re changing that.

With us, you get honest pricing, prompt communication, and top-quality work, every time. Why trust us?

Fully insured & certified
Over 30 years experience
1000+ happy customers
Warranty on all work!

Signs Your Central Heating Needs Attention

Radiators are slow to heat or stay cold
Noisy pipes or banging sounds
Boiler pressure issues or regular resets
Hot water but no heating (or vice versa)
Uneven heating across rooms
System hasn’t been flushed in years

If you’ve noticed any of these signs, we can carry out a system health check and recommend a fix that lasts.

What’s Involved in a Central Heating Installation?

1. Initial Survey

We assess your property and understand your heating needs.

2. System Design

We recommend the ideal boiler, radiator sizes, pipework layout and controls.

3. Installation

Clean, efficient, Gas Safe-registered work done to the highest standard.

4. Testing & Balancing

We make sure every radiator heats evenly and efficiently.

5. Aftercare Support

Advice, servicing plans and support if you need help later on.

Book Your Central Heating Service Today

Need a full system upgrade, a few radiator changes, or a heating system check? For all things central heating in South London, OJ Gas & Heating is here to help.

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