Vaillant ecoTEC Plus 635 System
Larger homes wanting smart-ready, premium-engineered heating
Standard wireless thermostat included
Key features & benefits
Why customers across Burnley, Padiham, Nelson and the rest of East Lancashire pick the Vaillant ecoTEC Plus 635 System:
- Modern high-efficiency condensing design
- Intuitive touch controls with smart-home connectivity
- Hot water delivered in ~5 seconds
- Pairs with a hot-water cylinder
- German-engineered Vaillant reliability
- Up to 10-year guarantee
Specifications
- Brand
- Vaillant
- Type
- System Boiler
- Available outputs
- 30 kW · 35 kW
- Warranty
- 10 years
- Best for
- Larger homes wanting smart-ready, premium-engineered heating
- Fitted price from
- £2,850
No hidden extras — ever.
Your £2,850 fixed price covers everything you need to swap your boiler:
New Vaillant ecoTEC Plus 635 System unit
Genuine, brand-new from Vaillant
Full installation labour
Gas-Safe registered engineer, 1-day install
Chemical system flush
Removes sludge & extends boiler life
Old boiler removal
Responsibly recycled — no hassle for you
Wireless thermostat
Included with every install as standard
10 years warranty registration
We register direct with Vaillant
Building Notice cert
Submitted to Gas Safe within 48hrs
Commissioning
Pressure-test, balance & demonstrate the boiler
Aftercare
Free phone support for the lifetime of the boiler
Other system boilers we fit
Vaillant ecoTEC Plus 635 System — common questions
How long does it take to install the Vaillant ecoTEC Plus 635 System?▼
Most system boiler swaps including the Vaillant ecoTEC Plus 635 System take 1 working day. Conversions to a different system type (e.g., regular → combi) take 2 days. We arrive on time, run a full system flush and commission the boiler before we leave.
What's included in the £2,850 Vaillant ecoTEC Plus 635 System price?▼
Our fixed quote includes the Vaillant ecoTEC Plus 635 System unit, full installation labour, a chemical system flush, removal & responsible disposal of your old boiler, a standard wireless thermostat, system commissioning, manufacturer registration to activate your 10 years warranty, and a Gas Safe Building Notice. No hidden extras.
Is the Vaillant ecoTEC Plus 635 System a good choice for my home?▼
Larger homes wanting smart-ready, premium-engineered heating. Output range available: 30 kW · 35 kW. If you're not sure which size you need, we'll size the boiler properly using a heat-loss calc during our free survey.
What warranty comes with the Vaillant ecoTEC Plus 635 System?▼
The Vaillant ecoTEC Plus 635 System comes with a 10 years parts & labour warranty when installed by us and serviced annually. As an accredited installer for Vaillant, we register your warranty directly with the manufacturer — you don't have to do a thing.
Ready to swap your boiler?
Free fixed quote on the Vaillant ecoTEC Plus 635 System — no callout charge, no obligation.