Boiler Upgrade Scheme — up to £9,000 government grant available now · Serving London & Birmingham
Sailax
Boiler Upgrade Scheme · Now Open

Heat your home for less, with a heat pump from £1,500

The government's Boiler Upgrade Scheme covers up to £9,000 of the cost. Sailax handles your eligibility, the paperwork and a fully MCS-certified installation — across London & Birmingham.

Net cost from £1,500 for eligible homeowners after grant
MCS certified installers — every installation
Oil or LPG homes may qualify for the higher £9,000 grant
JM SR DS PT
4.9/5 from 127 verified homeowners
Free · No obligation
Check your grant eligibility
See how much of your installation the grant could cover.
Grant funding is allocated on a first-come basis — vouchers are limited each year.
We reply within 2 hours · Your details stay private
Rated 4.9/5 by homeowners in London & Birmingham
MCS Certified
Installers
Gov-Backed
Boiler Upgrade Scheme
Fully Insured
Every installation
London & Birmingham
Local install teams
4.9/5 Rated
127 homeowner reviews
What you actually pay

The grant does the
heavy lifting.

A typical heat pump installation costs £7,000–£14,000. With the Boiler Upgrade Scheme applied directly at installation, eligible homeowners pay only the remainder — often as little as £1,500.

Typical installation cost£7k–£14k
With your grant appliedYou pay from £1,500
Up to £9,000Grant covers this
£1,500You pay

Illustrative split based on a representative installation. Your exact grant level and net cost are confirmed during your free eligibility assessment.

Boiler Upgrade Scheme

How the government reduces your cost

In plain English — the grant is applied by your installer, so it comes straight off your installation price. You never have to claim it back yourself.

Net cost from
£1,500
After grant applied
A dramatically reduced upfront cost
The grant is applied directly at installation by Sailax — reducing what you pay on the day. For eligible homeowners, the net cost is far more manageable than the full system price.
Oil / LPG homes
Up to £9,000
Enhanced support — eligible homes
Higher grant for oil or LPG homes
If your home is currently heated by oil or LPG, you may qualify for a higher level of support. Eligibility is confirmed as part of your initial assessment.

Important: Grant eligibility depends on your property type, current heating system and EPC rating. Sailax confirms exactly what applies to you during your free, no-obligation enquiry — no pressure to proceed.

Check My Eligibility & Get a Quote
Verified homeowner reviews

Trusted by homeowners across
London & Birmingham

4.9
Average rating
127
Verified installations
reviewed
98%
would recommend
Sailax to a neighbour
Verified

We were on oil and dreading the cost. Sailax confirmed we qualified for the higher £9,000 grant and the whole thing came to a fraction of what we expected. Genuinely the easiest big home decision we've made.

JM
James Mercer
Bromley, London
Verified

What sold me was that they did a proper home survey before quoting — no guesswork. The MCS-certified team were tidy, on time, and finished in three days. House is warmer and the bills have dropped noticeably.

SR
Sarah Reynolds
Edgbaston, Birmingham
Verified

I was nervous about the government paperwork but Sailax handled the entire grant application for me. I just answered a few questions and they did the rest. Quote was fixed and there were no surprises at the end.

DP
David & Priya Shah
Croydon, London
Verified

Rang on a Tuesday, had a reply within the hour and a survey booked that week. Older 1930s semi and they were honest about what we'd need first. No hard sell — exactly how it should be done.

PT
Paul Thornton
Solihull, Birmingham
Verified

The fixed-price quote was exactly what we paid — to the penny. Communication throughout was excellent and they checked in after the install to make sure everything was running properly. Highly recommend.

HO
Helen O'Connor
Richmond, London
Verified

Switched from an old LPG boiler. The savings on running costs are real and the house holds heat so much better now. Grant covered the vast majority of the cost — wish we'd done it sooner.

MA
Michael Adeyemi
Harborne, Birmingham
Beyond the grant

Why homeowners are switching

There are lasting reasons to make the move — for your home, your bills and the long term.

Significant Energy Savings

Heat pumps typically run at 300–400% efficiency — producing three to four times more energy than they consume, cutting your heating bills.

Works in Most UK Homes

Modern heat pumps work reliably in the UK climate and across a wide range of property types — from newer builds to older homes with the right setup.

Low Maintenance

Designed for reliability with minimal servicing — and no annual gas safety checks to arrange once you've made the switch.

Heating & Hot Water

A single system handles both space heating and domestic hot water — replacing your boiler and cylinder in one efficient unit.

Lower Carbon Emissions

Switching from oil or gas significantly reduces your home's carbon footprint — and gets cleaner as the grid continues to decarbonise.

Long-Term Asset Value

With fossil fuel boilers being phased out, heat pumps are the forward-compatible choice — potentially adding value as the market shifts.

Why it matters who installs it

Not every installer works the same way

Some homeowners have had poor experiences — rushed jobs, missed grant details, little support afterwards. Sailax was built around a more considered approach.

What some installers do
Quote without a proper home assessment
Miss grant eligibility that reduces your cost
Recommend systems not suited to the property
Offer little support after installation
Rush through projects to maximise volume
What Sailax does
Complete a proper home assessment before quoting
Identify all grant eligibility — maximising what you save
Design the right MCS-certified system for your property
Stay accessible throughout and after installation
Take the time to get the installation right, every time
Your journey with us

From first enquiry to
completed installation

We manage every stage. You don't need to understand the technical detail — we walk you through it clearly, with no pressure to proceed until you're ready.

1

Enquire & Check Eligibility

Tell us about your home and current heating. We confirm your BUS grant eligibility — including whether the higher oil/LPG grant applies — within 2 hours.

2

Home Survey

A full property assessment by our MCS-certified team. We design the right system for your home — correctly sized for your heating needs and layout.

3

Fixed-Price Quote

A clear, fixed quote with the grant already applied. What we quote is what you pay — no hidden costs, no late additions.

4

Grant Handled

Sailax applies the Boiler Upgrade Scheme grant and manages the scheme administration. You don't deal with the paperwork.

5

Installation

Professional MCS-certified installation, typically completed in 2–4 days with minimal disruption. Every system is commissioned and tested.

6

Aftercare

We stay accessible after the work is done — checking your system runs as it should and answering any questions as you settle in.

Common questions

Everything UK homeowners ask before enquiring

Still unsure? Our team will talk you through it in plain English — no jargon, no pressure.

Prefer to just ask us directly?

Speak to a real person about your home and the grant. We reply within 2 hours during business hours.

+44 7537 149 494
The Boiler Upgrade Scheme (BUS) is a UK government programme providing grants to homeowners who replace fossil fuel heating with low-carbon alternatives such as heat pumps. The grant is applied directly by the installer — reducing your upfront cost. You don't receive the money yourself; it comes off the total installation price.
Yes. Every installation is carried out by MCS-certified installers — which is a requirement of the Boiler Upgrade Scheme. MCS certification is what allows your grant to be applied, and it's your assurance that the work meets recognised industry standards.
We currently serve homeowners across London and Birmingham with local install teams in both areas. Enter your postcode in the eligibility form and we'll confirm coverage for your specific address right away.
Eligibility depends on a few factors: you need to own the property, have a valid Energy Performance Certificate, and be replacing a fossil fuel heating system. When you enquire, we work through your eligibility in plain English — with no obligation to proceed.
The level of support depends on what you're replacing. The higher amount — up to £9,000 — is specifically for homes currently heated by oil or LPG. Homes replacing gas or other systems may qualify for a different level. We confirm exactly what applies to you during your initial consultation.
It's a genuine figure — for homeowners who qualify for the maximum grant support, the net cost after the grant can be around £1,500 depending on the total installation cost and system required. It does depend on your eligibility, and we'll always give you an honest, accurate picture of the numbers for your specific situation before you commit.
A typical residential heat pump installation costs between £7,000 and £14,000 before grant support. With the Boiler Upgrade Scheme applied, eligible homeowners reduce this substantially. The exact cost depends on your property size, current setup and the system required — which is why we assess properly before quoting.
Most installations are completed within 2 to 4 days. The exact time depends on your property and whether any additional work is needed — such as radiator upgrades or pipework changes. We give you a clear, realistic timeline during the assessment.
Heat pumps work well in a wide range of UK homes, from modern builds to older properties. Older homes may benefit from insulation improvements to maximise efficiency, but this doesn't automatically rule them out. During your survey we'll assess your property honestly and tell you whether a heat pump is the right choice — and what, if anything, to address first.
Ready to start

Check your eligibility — free, no obligation

Tell us about your home and current heating. We'll come back within 2 hours with clear, honest information about your grant support and a realistic indication of your net cost.

  • Eligibility confirmed — we identify your grant level
  • MCS certified installers on every job
  • Fixed-price quote — what we quote is what you pay
  • No obligation — nothing to pay until you choose to proceed
Prefer to talk? +44 7537 149 494
Mon–Fri, 9am–5pm · info@sailax.co.uk
Send your enquiry
We respond within 2 hours during business hours.
Boiler Upgrade Scheme vouchers are limited and issued first-come, first-served — check now to secure yours.
Your details are confidential and used only to respond to your enquiry.
Prefer to speak directly?
+44 7537 149 494
Mon–Fri, 9am–5pm · info@sailax.co.uk
Check My Eligibility →