Vaillant

Vaillant is a leading manufacturer of boilers, heat pumps, and heating systems for residential and commercial use in the UK.

4.0 / 5

Great

Based on 5 AI models & 0 reviews

How Vaillant uses TrustRating

Profile not yet claimed

Write a review Claim this company Bookmark Follow

Overview Reviews FAQ News About

Ratings at a glance

Human reviews0 reviews

—

No human reviews yet. Be the first to rate Vaillant.

AI model consensus5 models

4.0

Last AI analysis: 7 hours ago

Average star rating across the AI models that analysed Vaillant.

Score breakdown

Trust

4.2

Reliability

Doesn't yet invite customers to review

4.0

Service

4.0

Support

3.7

Reputation

4.1

We use AI-powered technology to protect trust and platform integrity

At trustrating.ai, we use advanced technology to help protect the integrity of our platform and support reliable TrustScores and customer reviews.

We do not fact-check every individual review or verify every specific claim, because reviews reflect each customer’s personal experience and opinion. However, we may mark a review as “Verified” when we can confirm that a genuine interaction with the business took place.

To help keep reviews trustworthy, every review on our platform — verified or unverified — is screened by our automated systems. These systems are designed to detect content that may breach our guidelines, including reviews that appear not to be based on a genuine customer experience.

While our technology helps us identify and remove suspicious or non-compliant content, no system is perfect. If you notice a review that you believe we may have missed, you can report it for further review.

AI model scores

Each model independently rates Vaillant on a 1–5 star scale.

Claude

Anthropic

3.9

Vaillant is a well-established German heating manufacturer with strong UK presence. Known for reliable boilers and heat pumps, with good industry reputation and proper certifications.

DeepSeek V3

DeepSeek

4.1

Vaillant is a reputable UK manufacturer of boilers and heating systems, known for quality products and industry leadership.

Gemini 2.5

google · 1,048,576 tok ctx

4.3

Vaillant is a well-established and reputable UK manufacturer of heating systems, known for quality products and extensive industry experience. They adhere to relevant regulations and offer robust support, contributing to a strong overall trust score.

GPT-5

OpenAI

3.9

Established UK heating manufacturer (boilers, heat pumps) with strong brand and installer network. Generally solid product quality and warranties. Regulated via safety/standards compliance rather than financial licensing. Support and reviews are mixed-to-good.

Grok 4.3

x-ai · 1,000,000 tok ctx

3.9

Established German heating manufacturer with long UK presence and strong reputation for boilers/heat pumps. Compliant with industry standards; product quality is generally high though support often routes through installers.

Similar companies

Other top-rated companies in Energy & Heating.

Frequently asked questions about Vaillant

Quick answers based on live TrustRating data. How we score companies →

Is Vaillant legit and safe to use?

Vaillant is rated 4.0 out of 5 (“Great”) on TrustRating, based on 5 independent AI model assessments. The TrustScore combines real customer reviews with AI models that independently assess trust, regulation, support and reputation signals. Always do your own research before making a purchase or investment.

What is Vaillant's TrustScore?

Vaillant currently has a TrustScore of 4.0 out of 5 (“Great”). The score blends verified customer reviews with assessments from multiple independent AI models, and it updates automatically as new reviews and scans come in. You can read exactly how scores are computed on our methodology page.

How does Vaillant compare to other energy & heating companies?

You can compare Vaillant against other top-rated companies in the Energy & Heating category on TrustRating, ranked by TrustScore. See all Energy & Heating companies →