What the UK’s Warm Homes Plan Means for Landlords and Homeowners

Published 27th January 2026

A new direction for upgrading UK homes

This month, the UK Government published its long-awaited Warm Homes Plan — a major shift in how homes will be upgraded over the next decade.

While early headlines focused on fuel poverty, the reality is that this plan has huge implications for landlords and middle‑income homeowners who want to improve their properties with solar panels, heat pumps and battery storage.

This guide explains what the Warm Homes Plan really means in practice — and how households can upgrade sensibly, without unnecessary cost or disruption.

A whole‑home approach (not piecemeal upgrades)

One of the biggest changes in the Warm Homes Plan is that the government is no longer treating energy upgrades as separate jobs.

Instead, it encourages a joined‑up, whole‑home approach, combining:

• Low‑carbon heating (such as heat pumps)

• Solar electricity generation

• Battery storage

• Smart controls and flexible tariffs

The aim isn’t just lower carbon emissions — it’s lower energy bills, better comfort, and long‑term protection from rising energy costs.

What the Warm Homes Plan means for landlords

EPC Band C by 2030 — but with more flexibility

Under the Warm Homes Plan, most private rented homes will need to reach EPC Band C by October 2030, unless a valid exemption applies.

Crucially, compliance is no longer driven purely by insulation. EPC performance is increasingly influenced by:

• Clean heating systems

• On‑site electricity generation

• Smart energy management

This means solar panels and heat pumps are now practical compliance tools, not just add‑ons.

Cost caps and planning time

To protect landlords, the plan includes:

• A £10,000 cost cap per property

• Recognition of improvements made from October 2025 onwards

• No requirement to replace a valid EPC until it expires

This gives landlords time to plan upgrades properly and avoid rushed or poor‑quality work.

Grants and tax efficiency

Landlords can still access the Boiler Upgrade Scheme (BUS), which offers:

• £7,500 off the cost of an air source heat pump

Solar panels and batteries can then be added to improve EPC scores, reduce tenant bills and protect long‑term rental value. Upgrade costs also remain tax deductible.

What the Warm Homes Plan means for middle‑income homeowners

Support without full means‑testing

The Warm Homes Plan is designed not just for low‑income households, but also for working and middle‑income families who:

• Don’t qualify for fully funded schemes

• Want to reduce bills and carbon

• Don’t want to commit to large upfront costs

Grants still play a role

Homeowners can continue to access:

• £7,500 BUS grant towards a heat pump

This alone significantly reduces the cost of replacing an ageing boiler.

Affordable finance changes the equation

A major part of the plan is the rollout of government‑backed low‑interest and zero‑interest finance for:

• Solar panels

• Battery storage

• Heat pumps (alongside the BUS grant)

This allows households to spread costs sensibly and align repayments with energy savings — making upgrades feel more like a monthly utility cost than a major renovation.

Lower running costs

From April 2026, electricity pricing is being rebalanced, making electric heating cheaper to run.

When combined with solar, batteries and smart tariffs, many households can:

• Cut annual energy bills by several hundred pounds

• Improve comfort with steady, low‑temperature heating

• Reduce exposure to future energy price shocks

Why solar, batteries and heat pumps work best together

The Warm Homes Plan strongly favours integrated systems, not isolated upgrades.

• Solar panels generate low‑cost electricity

• Batteries store that energy for evening use

• Heat pumps convert electricity into three to four times as much heat

Together, they create a system that is cheaper to run, easier to future‑proof and better reflected in EPC ratings.

Speak to our experts

Whether you’re a landlord planning ahead or a homeowner looking to reduce bills, the key is good design and clear advice.

At Assembly Renewables, we specialise in joined‑up solar and heat pump systems — designed properly, installed by our in‑house engineers, and supported long‑term.

👉 Get in touch to speak with our experts

We’ll help you understand your options and design the right solution for your property.