Alto Assured Partner Installer
We install heat pumps under Alto Energy's MCS certification, as one of its Alto Assured Partner Installers. You get a local team you know for the installation, with Alto's design, commissioning, grant application and warranty behind every system.
- Air and ground source heat pumps
- MCS-certified systems
- Grant taken off the quote
- Up to 7 years' warranty
What it means for you
Why it matters
Designed to MCS standards
Alto's in-house team designs every system, with the heat loss worked out before anything is delivered.
Commissioned by Alto
Alto's own engineers commission the system and hand it over, and Alto registers your MCS certificate.
The grant, off the quote
As the MCS-certified company, Alto applies to Ofgem for the Boiler Upgrade Scheme, and the grant comes off your quote upfront.
Backed from day one
Alto takes responsibility for the system from commissioning, with seven years' parts and labour on air source and five on ground source.
How it works
Who does what
Two specialists, one job. Here's how the work is shared between Alto Energy and us.
Alto Energy
- Designs the system to MCS standards, with heat loss calculations
- Supplies the heat pump
- Applies to Ofgem for the Boiler Upgrade Scheme grant
- Commissions the system with its own engineers, and hands it over
- Registers the MCS certificate
- Takes responsibility for the system, with its warranty
Us, Barnes Plumbing & Heating
- Visits your home and tells you honestly whether a heat pump suits it
- Surveys the house and sends Alto the details
- Trained by Alto before fitting heat pumps under its scheme
- Fits the heat pump, cylinder, pipework and controls
- Upgrades radiators or fits underfloor heating where needed
- Looks after servicing and repairs afterwards
What you get
- A fully MCS-certified system
- The grant off your quote
- A local team you know
- Up to 7 years' parts and labour
The MCS umbrella, explained
How the certification works
The government grant needs an MCS-certified installer. Under Alto's umbrella scheme, the certification sits with Alto Energy and the installation with us, so you get both.
- Step 1
MCS
Sets the standards for heat pump installations in the UK, and certifies the companies that meet them. The grant needs an MCS-certified installer.
Step 2Alto Energy
MCS certified for air and ground source heat pumps. Designs, commissions and certifies every system, and takes responsibility for it.
Step 3Us
Trained by Alto as an Alto Assured Partner Installer. We carry out the installation in your home.
- Step 4
Your home
A fully MCS-certified heat pump system, with the grant taken off the quote.
- Alto's umbrella scheme began
- 2017
- installations completed
- 4,000+
- Alto Assured installers
- 1,000+
- the Alto Assured scheme launched
- 2022
Figures from Alto Energy, October 2026.
The Boiler Upgrade Scheme
Up to £9,000 off, taken straight off the quote
The government grant for air and ground source heat pumps. Alto Energy, the MCS-certified company we install under, applies for it on your behalf, and you only ever pay the balance.
- You own the home, in England or Wales
- It replaces oil, gas, LPG or electric heating
- One grant per property, and hybrid systems don't qualify
- Taken off your quote upfront, so you never wait to be paid back
- Every eligible homeAir or ground source heat pump
- £7,500
- Plus, for oil or LPG homesNo mains gas, until March 2027
- +£1,500
- Up toTaken off your quote
- £9,000
Who does each step
From first visit to switch-on
- 1Us
First visit
We look at your home and tell you honestly whether a heat pump suits it.
- 2Alto
Design
Alto works out the heat loss room by room and designs the system to MCS standards.
- 3Alto
The grant
Alto applies to Ofgem for the Boiler Upgrade Scheme, and it comes off the quote.
- 4Us
Installation
We fit the heat pump, cylinder, pipework and controls, and any radiator upgrades.
- 5Alto
Commissioning
Alto's engineers commission and hand over the system, and register the MCS certificate.
- 6Us
Aftercare
We look after servicing and repairs, with Alto's warranty behind the system.
Related services
The heat pumps we install
FAQs
Common questions
Facts on this page are from Alto Energy (opens in a new tab), Ofgem (opens in a new tab) and GOV.UK (opens in a new tab), checked 21 October 2026. Alto Energy’s name and logo are used with permission.
Let's get it sorted.
Tell us what's going on and we'll get back to you, usually the same day. Quotes are free and there's no obligation.