Insulation Consultations, London
Find out exactly what your home is losing.
Whether it’s solid walls, cavity walls, or a cold loft - we’ll identify where your home is losing heat and give you an honest plan to fix it.
- Free 15-minute call
- No pressure
- Honest assessment
Rated 4.9 by London homeowners
Why choose us?
Why Cosy Homes, not just an installer?
With a typical installer
- They only do one type of insulation
- You manage contractors yourself
- No one checks if the work was done right
- You’re sold whatever they happen to offer
- One-off job, no ongoing support
With Cosy Homes London
- We assess your whole home, not just one wall
- We manage everything on your behalf
- We verify quality before we sign off
- We recommend only what your home actually needs
- We stay involved until you’re completely satisfied
Years retrofit expertise
Deep understanding of local homes
Homes transformed
From insulation to heat pumps
Skilled trades specialists
Ensuring top-quality work
Homeowners satisfied
With our guidance and care
Our work
Get inspired by our beautiful work
See how we’ve transformed spaces with our expert craftsmanship and attention to detail.
Creating a sustainable home
Nilam transformed her 1960s Paddox estate house to reflect what she truly believes in – adding a heat pump, insulation, and ventilation improvements. Now her home is warmer, greener, and inspiring her neighbours to follow the same path towards sustainable living.
The challenges:
External wall cracks
Poor insulation
Inefficient heating
"I couldn't have asked for more excellent people. So much integrity, very principled, very thorough professionals. It was really reassuring."
When your home finally feels warm
Jane's 1910 Edwardian home had charm but was freezing in places, especially her home office. With insulation, ventilation, and a heat pump, she turned it into a genuinely warm, comfortable space and discovered "A home is so much more than just a place where you live."
The challenges:
Draughty rooms
Poor wall insulation
Single-glazed windows
My study room was freezing cold, but now it's the warmest room in the house.
From cold to cosy
This 1930s East Oxford home transformed with insulation, glazing, and ventilation – cutting carbon, lowering bills, and making it warmer year‑round. Eleanor and Chris wrapped their home in expert energy upgrades, turning a draughty terrace into a comfortable space where they can finally feel warm without the thermostat cranked up.
The challenges:
Poor loft insulation
Single-glazed door
Sagging cavity wall insulation
"We've always worried about climate change, but rising energy bills made acting now feel urgent. We truly appreciate the guidance and advice the team provided."
End-to-end service
You focus on your home. We handle the rest.
Organising insulation work is stressful - finding installers, comparing quotes, chasing progress. We take all of that off your plate.

We find the right contractor
Not all insulation installers are equal. We only work with vetted specialists who are qualified for your specific wall type.
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We manage the install
From booking to completion, we coordinate everything. You don’t need to deal with a single contractor directly.
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We check the work
Once the job is done, we inspect the install and make sure it meets the standard your home deserves.
FAQs
Answering your questions
Common questions about solar panels in London
What type of insulation does my home need?
It depends on your wall construction. Homes built before the 1920s often have solid walls; post-1930s homes usually have cavity walls. Some homes have both. We assess your property and tell you exactly what’s appropriate - we won’t recommend anything that’s not right for your home.
Can I insulate in stages?
Yes. Many of our clients start with loft insulation (cheapest, highest return) and phase in wall insulation over time. We’ll help you prioritise what to do first based on your home and budget.
Will external wall insulation change the look of my house?
External wall insulation does add a new finish to the outside of the property. We’ll show you examples and walk you through what it would look like before any work begins. If your home is in a conservation area or has restrictions, we’ll tell you upfront.
How disruptive is the work?
Cavity wall and loft insulation are minimally disruptive - usually a day’s work. External and internal wall insulation takes longer and can involve more disruption to specific rooms. We’ll always give you a realistic picture before committing.
How do I know the work has been done properly?
We don’t just hand you over to a contractor and disappear. We inspect the completed work and only sign off when we’re confident it meets the right standard.
Do you only work in certain parts of London?
We work across London. Just give us your postcode when you book your consultation and we’ll confirm we can help.