If your boiler is over 10 years old, breaking down frequently, or costing you more in energy bills than it should, you’re probably wondering: how much does a new boiler actually cost in Romford?
As Gas Safe registered engineers who’ve installed over 2,500 boilers across Romford, Essex and South London since 2006, we’re going to give you a straightforward, honest breakdown of what you can expect to pay in 2026.
Quick Answer: New Boiler Costs in Romford (2026)
| Boiler Type | Supply Only | Fully Installed |
|---|---|---|
| Combi Boiler (like-for-like swap) | £800 – £2,200 | £1,799 – £3,500 |
| System Boiler | £900 – £2,500 | £2,200 – £4,000 |
| Regular/Heat-Only Boiler | £700 – £2,000 | £1,800 – £3,500 |
| Combi Boiler (relocation/conversion) | £800 – £2,200 | £2,500 – £4,500 |
Note: These are real prices we quote to customers in Romford. Your actual cost depends on the brand, model, property type and complexity of installation.
What Affects the Cost of a New Boiler?
1. Boiler Brand & Model
The brand you choose has the biggest impact on price. Here’s how the most popular brands compare:
- Worcester Bosch — Premium quality, up to 12-year warranty. £1,200–£2,200 (supply only)
- Vaillant — German engineering, excellent reliability. £1,100–£2,000
- Ideal — Great value, UK-made, up to 12-year warranty. £800–£1,500
- Baxi — Reliable, affordable, good warranty. £750–£1,400
At F.A.S, we’re approved installers for all major brands and can help you choose the best boiler for your home and budget.
2. Type of Installation
- Like-for-like swap (cheapest) — Same position, same type. Usually 1 day.
- Boiler relocation — Moving to a different room/wall. Adds £300–£800 for new pipework and flue.
- System conversion — Changing from conventional (with tank) to combi. Adds £500–£1,000 for removing cylinder and tank.
3. Property Size & Radiators
A 1-bed flat needs a smaller boiler (24-27kW) than a 4-bed house (35-40kW). Larger boilers cost more, but choosing the right size is essential for proper heating.
4. Additional Work Required
- New flue route: £150–£400
- Magnetic filter (recommended): £100–£200
- Chemical flush: £150–£300
- Smart thermostat (Nest/Hive): £200–£350 installed
- Gas pipe upgrade: £100–£300
Which Boiler Size Do I Need?
| Property Size | Bathrooms | Recommended Output | Example Model |
|---|---|---|---|
| 1-2 bed flat | 1 | 24-27kW combi | Worcester 2000 |
| 3 bed semi | 1-2 | 28-32kW combi | Worcester 4000 |
| 4+ bed detached | 2+ | 35-40kW combi or system | Vaillant ecoTEC Plus |
Can I Get Finance on a New Boiler?
Yes! We offer flexible finance options so you can spread the cost of your new boiler. Options include:
- 0% interest over 12 months (subject to status)
- Low-rate finance over 2-5 years
- Buy now, pay later options
Ask us about finance when you request your free quote.
How Long Does Boiler Installation Take?
- Like-for-like swap: 1 day (6-8 hours)
- Relocation: 1.5-2 days
- System conversion: 2-3 days
What’s Included in Our Boiler Installation Price?
When you get a quote from F.A.S, everything is included:
- ✅ Supply of new boiler
- ✅ Professional installation by Gas Safe engineer
- ✅ Removal and disposal of old boiler
- ✅ All pipework and fittings
- ✅ Gas Safe certificate
- ✅ Manufacturer warranty registration
- ✅ System flush (chemical or power flush)
- ✅ Magnetic filter installation
- ✅ Full clean-up on completion
Signs You Need a New Boiler
- Your boiler is over 10-15 years old
- Frequent breakdowns and repairs
- Rising energy bills (old boilers are less efficient)
- Uneven heating or cold radiators
- Strange noises (banging, kettling, gurgling)
- Yellow flame instead of blue
- Replacement parts are hard to find
Why Choose F.A.S for Boiler Installation in Romford?
- 🔒 Gas Safe registered (legal requirement)
- 💰 Fixed pricing — no hidden costs
- 📅 Same-week installation available
- 🏆 20+ years experience, 5,000+ jobs
- ⭐ 5-star reviews on Google, Checkatrade & Yell
- 🔧 Approved installer for all major brands
- 📞 No call-out charge for quotes
Get Your Free Boiler Quote Today
Every home is different, so the best way to get an accurate price is to request a free, no-obligation quote. We’ll visit your property, assess your needs, and give you a fixed price on the spot.
📞 Call: 07872 471 587
📧 Email: [email protected]
💬 WhatsApp: Message us
F.A.S Plumbing & Heating Ltd — Gas Safe registered boiler installation in Romford, Hornchurch, Ilford, Dagenham, Barking, Upminster and all of Essex.
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