Hybrid Boiler Installation
Hybrid Boiler Installation Specialists with 18 Years Experience
Homeowners across Milford Haven report quieter heating and lower bills after our Intergas Xtend hybrid installs. Sigma Plumbing & Heating offers professional system design, Gas Safe installation and full manufacturer-backed commissioning of Intergas and ATAG systems. We handle planning checks, system sizing and seamless handover, then provide clear documentation and ongoing care.
Why Choose us for Hybrid Boiler Installation?
Hybrid systems use a heat pump for low‑temperature loads and a boiler for peak demand, reducing gas consumption and CO₂ without compromising comfort.
How It Works
Site survey & system design
We carry out a detailed survey of your property — fabric, radiators, loft/ground-source options — then design an Intergas Xtend hybrid system sized for your home and lifestyle.
Professional installation
Gas Safe engineers install the boiler, heat pump and controls with manufacturer procedures, pipework checks and system balancing to ensure efficient performance from day one.
Commissioning & aftercare
We commission to Intergas/ATAG standards, register warranties, hand over controls with user training and provide written documentation plus scheduled servicing options.
Frequently Asked Questions
Find answers to common questions about our services and process.
Most homes in Milford Haven are suitable, especially those with existing radiators and reasonable loft/ground access for an air-source heat pump. We carry out a full survey to assess fabric, hot-water demand and radiator sizing before confirming suitability.