When it comes to Worcester Bosch vs Intergas boilers, both deliver reliable gas heating solutions, but Worcester offers broader UK support while Intergas excels in innovative efficiency for homeowners and landlords seeking value and performance.
If you’re deciding between these for your property—perhaps to upgrade for better energy savings or meet rental efficiency standards—this detailed comparison covers their origins, awards, ratings, warranties, and models to help you pick the right fit in an era of rising costs and sustainability.
Worcester Bosch vs Intergas Boilers: At a Glance
Worcester Bosch and Intergas both provide high-quality gas boilers with strong efficiency, but Worcester dominates in UK market share and warranties, while Intergas stands out for compact innovation and low emissions. To give you a quick snapshot before we delve deeper, here’s a comparison table highlighting key aspects.
| Feature | Worcester Bosch | Intergas |
| Origin | UK (Worcester, founded 1962, part of Bosch Group) | Netherlands (Coevorden, founded 1939, family-owned) |
| Efficiency Rating | Up to 94% (A-rated) | Up to 94% (A-rated) |
| Which? Score | 80-85% customer satisfaction, frequent Best Buys | 78-82% reliability, Best Buy for Xclusive range |
| Trustpilot Rating | 4.6/5 (over 49,000 reviews) | 5/5 (over 1,500 reviews) |
| Warranty | Up to 12 years with accredited installer | Up to 10 years on heat exchanger, 5-7 years on parts |
| Price Range (Unit Only) | £800-£1,500 | £700-£1,200 |
| Popular For | Extensive UK support, smart features | Compact design, low NOx emissions |
Why Consider Worcester Bosch Boilers?
Considering a Worcester Bosch boiler is a smart choice if you value a well-established UK brand with robust local support and long warranties for reliable home heating.
Founded in 1962 in Worcester, England, and part of the Bosch Group since 1996, this company has become synonymous with quality gas boilers, producing over a million units annually with a focus on British-specific designs that handle our variable weather and hard water challenges effectively.
Worcester Bosch Boilers: Awards
Worcester Bosch boilers have secured numerous awards, including multiple Which? Best Buys for the Greenstar series in 2025, recognising their outstanding reliability and customer satisfaction.
They’ve also earned Energy Saving Trust endorsements for low-emission models and HVR Awards for innovation in sustainable heating, highlighting their role in reducing UK household carbon footprints.
Worcester Bosch Boiler Warranty
Worcester Bosch offers up to 12 years warranty on boiler parts and labour for select models when installed by an accredited engineer, providing comprehensive protection that reflects their confidence in product durability. This extended coverage is a key selling point, with options to further prolong through service plans for added peace of mind.
Worcester Bosch Popular Boiler Models
Worcester Bosch popular boiler models cater to a range of needs, with the Greenstar line leading for efficiency and compactness. Here’s a table of their standout options:
| Model | Type | Output (kW) | Efficiency | Price Range | Best For |
| Greenstar 8000 Life | Combi | 30-50 | 94% | £1,200-£1,500 | Larger homes, smart app integration |
| Greenstar CDi Compact | Combi | 28-36 | 94% | £900-£1,200 | Space-limited properties, high hot water demand |
| Greenstar Ri | Regular | 12-24 | 92% | £800-£1,000 | Conventional upgrades, small spaces |
| Greenstar Si Compact | System | 25-30 | 94% | £850-£1,100 | Homes with existing cylinders, easy fit |
| Greenstar Highflow CDi | Combi | 29-41 | 92% | £1,300-£1,600 | High-demand households, built-in storage |
Trustpilot Reviews for Worcester Bosch Boilers
Worcester Bosch boilers hold a 4.6/5 rating on Trustpilot from over 49,000 reviews, with customers lauding efficient performance, quick engineer response, and bill savings from models like Greenstar.
Positive themes include reliable hot water and helpful support, while minor criticisms note occasional noise or installation delays, but overall sentiment is strongly favourable for UK users.
Pros and Cons of Worcester Bosch Boilers
Pros of Worcester Bosch boilers include their long warranties and extensive UK network, ensuring fast service. Cons might involve higher upfront costs, though offset by savings.
- Pros:
- Up to 12-year warranties for reassurance.
- High efficiency reducing energy bills.
- Vast installer base for quick repairs.
- Frequent Which? Best Buys for quality.
- Smart features in many models.
- Cons:
- Slightly pricier than budget options.
- Some models bulkier for tight spaces.
- Warranty requires annual servicing.
Why Consider Intergas Boilers?
Considering an Intergas boiler is excellent if you seek a Dutch-engineered brand with innovative designs, compact sizes, and low-emission focus for efficient, future-ready heating.
Founded in 1939 in Coevorden, Netherlands, Intergas has specialised in condensing technology since the 1980s, entering the UK market in 2008 with a reputation for pioneering double heat exchanger designs that enhance durability and performance in modern homes.
Intergas Boilers: Awards
Intergas boilers have won awards like Which? Best Buy for the Xclusive series in 2025, praised for low NOx emissions and reliability. They’ve also received HVR Awards for innovation in compact heating and Energy Saving Trust recognition for eco-efficient models, emphasising their role in sustainable UK heating.
Intergas Boiler Warranty
Intergas provides up to 10 years warranty on the heat exchanger and 5-7 years on boiler parts for models like Xclusive when installed by an approved engineer, offering solid coverage. This term highlights their engineering quality, with extensions available for added protection.
Intergas Popular Boiler Models
Intergas popular boiler models emphasise compactness and innovation, with the X range leading for efficiency. Here’s a table of their top performers:
| Model | Type | Output (kW) | Efficiency | Price Range | Best For |
| Xclusive | Combi | 24-36 | 94% | £900-£1,200 | Medium homes, low NOx |
| Xtreme | Combi | 30-36 | 94% | £1,000-£1,300 | High demand, smart controls |
| Compact HRE | Combi | 18-40 | 93% | £700-£1,000 | Budget upgrades, small spaces |
| Eco RF | System | 24-30 | 93% | £800-£1,100 | Cylinder homes, easy integration |
| Rapid | Combi | 25-32 | 93% | £850-£1,150 | Quick install, reliable flow |
Trustpilot Reviews for Intergas Boilers
Intergas boilers score 5/5 on Trustpilot from over 1,500 reviews, with users commending quiet operation, efficient hot water, and durable build in models like Xclusive. Positive feedback focuses on low emissions and installer praise, while rare negatives mention support in remote areas, but high satisfaction dominates for UK users.
Pros and Cons of Intergas Boilers
Pros of Intergas boilers feature their innovative exchangers and low emissions, providing eco-value. Cons may include limited UK presence compared to locals, affecting parts speed.
- Pros:
- Up to 10-year heat exchanger warranties.
- Innovative double exchanger for durability.
- Low NOx for eco-compliance.
- Compact for tight fits.
- Good efficiency for savings.
- Cons:
- Shorter base warranties than rivals.
- Smaller installer network in UK.
- Higher costs for advanced models.
- Less known brand vs UK staples.
- Fewer smart integrations in entry lines.
Worcester Bosch vs Intergas Boilers: Which Should You Choose
Worcester Bosch and Intergas boilers both offer excellent UK heating, but your decision depends on priorities like support, innovation, and budget. In our expert opinion from many installs, choose Worcester Bosch for its extensive UK network, longer warranties (up to 12 years), and proven Which? ratings if you want reliable, widely-supported options for family homes or rentals—it’s great for those valuing local service and smart features.
Opt for Intergas if compact design, low emissions, and innovative tech like double exchangers are key, suiting eco-focused or space-tight properties at competitive prices. For larger homes or high demand, Worcester’s range wins; for sustainable, compact needs, Intergas excels.
Looking for a New Boiler Quote?
If you’re choosing between Worcester Bosch or an Intergas boiler, our experts at Boilers 2 Go can help you decide—request a free new boiler quote today for personalised guidance on either brand or other options that will be suited to your property.
FAQs
How do service intervals differ for these brands?
Worcester recommends annual; Intergas every 12-18 months with checks.
What financing suits these boilers?
Both eligible for 0% plans or green loans if efficient—installer deals vary.
Are they compatible with underfloor heating?
Yes, modulation suits low-temp UFH for even warmth.
How do noise levels compare in operation?
Intergas quieter with advanced fans; Worcester solid but audible on startup.
Can these support multi-zone controls?
Both integrate with zoning for room-specific heating.
I’m Penny North, a home energy heating expert. My mission is to demystify new boilers and complex heating systems to help you achieve a warm, cosy home with lower energy bills and a smaller environmental footprint.