Viessmann installers · Gas Safe registered
Get a fixed-price quote for a new Viessmann boiler online, choose your installation date and have a Gas Safe registered engineer fit it. We install the Vitodens range, from compact combis to the 111-W with built-in hot water storage.
Replacing your boiler with Viessmann
Viessmann is a German heating manufacturer founded in 1917, and since 2024 its climate solutions business has been part of Carrier. Its Vitodens gas boilers use stainless steel heat exchangers and are well regarded for build quality.
We fit Vitodens combi, system and regular boilers. The Vitodens 050-W and 100-W suit most homes, while the Vitodens 111-W pairs a combi with a built-in hot water store, giving stronger hot water to homes that use a lot of it.
The online quote shows the Viessmann models that suit your home, with one fixed price for the whole installation.
Every Viessmann gas boiler we fit comes from the Vitodens family, numbered from entry level upwards.
| Model | Type | Best for |
|---|---|---|
| Vitodens 050-W | Combi | Entry-level combi for smaller homes |
| Vitodens 100-W | Combi, system or regular | Most homes; the most flexible Vitodens model |
| Vitodens 111-W | Combi with built-in store | Homes with high hot water demand and two bathrooms |
| Vitodens 200-W | Combi | Larger homes wanting a premium, high-output combi |
Outputs and availability depend on your home, so your online quote only shows the Viessmann models that suit it.
Viessmann installation prices depend on the Vitodens model, its output and the work involved. Across all brands, like-for-like combi swaps start from £1,759 fitted; the 111-W and 200-W sit higher in the range, as do system boiler and cylinder installs.
Every quote is fixed, so nothing is added after the survey. You can also spread the cost: as an example, a £1,799 boiler over 10 years at 9.9% APR works out at £23.26 a month, subject to status.
The Vitodens 111-W stores hot water inside the boiler casing, so it delivers stronger flow than a standard combi without a separate cylinder.
The Vitodens 100-W comes as a combi, system and regular boiler, so it can replace almost any existing set-up.
Viessmann’s stainless steel heat exchangers are designed for a long working life, which appeals if you plan to stay in your home for years.
It depends on the Vitodens model, output and work involved. Across all brands, like-for-like combi swaps start from £1,759 fitted, and your online quote shows a fixed price for the Viessmann boilers that suit your home.
It is a combi boiler with a built-in hot water store, so it can supply more hot water at once than a standard combi. It suits homes with two bathrooms that do not want a separate cylinder.
Yes. Viessmann was founded in Germany in 1917, and its climate solutions business became part of Carrier in 2024.
Yes. The Vitodens 100-W is available as a regular (heat-only) boiler, so it can replace an older boiler that runs with loft tanks and a cylinder.
Answer a few questions about your home, compare fixed-price Viessmann boilers and book the installation date that suits you – all online.