ENERGY EFFICIENCY
Trusted Loft Insulation Specialists Improving Home Efficiency
We help homeowners across the UK improve comfort and reduce heat loss by installing modern loft insulation that makes homes warmer and more energy efficient.
Professional Loft Insulation for Better Home Comfort
A large amount of a home’s heat escapes through the roof. When insulation ages, compresses or was never installed properly, rooms feel colder than they should and heating systems work harder than necessary. The change is gradual, but the effect on comfort and energy bills is noticeable.
" Our loft insulation service is designed to restore warmth, improve efficiency and make your home feel more comfortable throughout the year. We assess the loft, remove damaged or unsuitable insulation if required, and install modern materials that help retain heat more effectively. The process is steady, clear and handled with care."
Whether you want to reduce energy use, warm up cold rooms or simply modernise your home’s insulation, we make the entire experience simple and well explained from start to finish.
Why Loft Insulation Matters
Effective insulation is one of the simplest and most impactful home improvements available.
When insulation is missing or outdated, heat escapes quickly — especially during colder months.
Poor insulation can cause:
Cold bedrooms or draughty areas
Heating systems working harder than needed
Higher energy bills
Uneven temperatures throughout the home
Excess moisture and condensation
A general feeling that the home never warms up properly
Most of these issues are easily corrected with modern insulation materials installed correctly.
Loft insulation should be installed carefully and correctly to deliver real improvements in comfort and efficiency. Our process begins with a thorough assessment of the loft space, ensuring existing insulation, ventilation and access are properly considered before any work starts. By taking time to explain what we find and how the installation will be carried out, we help homeowners feel confident that the work will be done safely, responsibly and to a standard that makes a noticeable difference.
Our Step-by-Step Gutter Cleaning Process
01
Loft assessment
We inspect the current insulation, check for gaps, measure depth and assess ventilation.
02
Removing old or damaged insulation
If insulation is damp, mouldy or unsuitable, we remove it carefully before installing new material.
03
Preparing the loft space
We ensure surfaces are clear, safe and suitable for a fresh installation.
04
Installing modern insulation
We install insulation to the recommended depth with even coverage, correct placement, no gaps or cold spots, and proper ventilation maintained throughout the loft space.
05
Final checks
We review the installation, confirm coverage and ensure the loft remains tidy and safe.
The process is calm, tidy and respectful of your home.
"By completing each stage methodically and carrying out final checks before we leave, we help ensure the insulation performs as intended. The aim is to improve warmth, reduce heat loss and maintain proper airflow within the loft. Homeowners are left with a cleaner, well-organised space and the reassurance that their home is better protected, more energy efficient and comfortable throughout the year."
Our Loft Insulation Process
Common Signs Your Loft Needs New Insulation
Loft insulation often becomes less effective gradually, which is why many homeowners only notice an issue once comfort or energy costs begin to change. Poor insulation can allow heat to escape through the roof, making rooms feel colder and forcing heating systems to work harder than necessary. Recognising the signs early allows a simple assessment to confirm whether insulation needs replacing or topping up, helping restore warmth, efficiency and long-term comfort within the home.
Homeowners often contact us after noticing:
Rooms colder than expected
Heat loss even with heating on
Thin, patchy or compressed insulation
Damp or mould near loft surfaces
Insulation that has deteriorated with age
Bare areas with no insulation coverage
Draughts felt near ceilings or loft hatches
Uneven temperatures between floors of the home
A simple assessment confirms whether replacement or additional layers are needed.
Benefits of Proper Loft Insulation
Proper loft insulation plays a key role in improving how comfortable and efficient a home feels over time. By reducing heat loss through the roof, insulation helps maintain more stable internal temperatures, allowing living spaces to stay warmer in winter and more balanced throughout the year. This improved thermal performance supports lower energy use, reduces strain on heating systems and helps create a home that feels more comfortable, efficient and better protected in the long term.
A well insulated loft helps:
Improve Warmth and Comfort
Proper loft insulation helps retain heat within the home, making living spaces feel warmer and more comfortable, particularly during colder months.
Reduce Heating Bills
By limiting heat loss through the roof, insulation allows heating systems to work more efficiently, helping reduce ongoing energy consumption and costs.
Minimise Heat Loss
Insulation acts as a barrier that slows heat escaping through the loft, allowing warmth to remain inside the home for longer periods.
Create Stable Room Temperatures
Well-installed insulation helps balance temperatures throughout the home, reducing cold spots and creating a more consistent internal environment.
Reduce Condensation Risks
By improving thermal performance, loft insulation helps limit condensation caused by temperature differences, supporting a drier and healthier home.
Support Energy Efficiency
Effective insulation improves overall energy efficiency by reducing unnecessary heat loss and supporting more sustainable home heating performance.
"By installing insulation carefully and ensuring correct coverage, we help the loft perform as it should throughout the year. The aim is to improve warmth, reduce heat loss and maintain proper airflow within the roof space. Homeowners are left with a more comfortable, energy-efficient home and the reassurance that the insulation has been installed correctly and with long-term performance in mind."
Why Homeowners Choose GB Cosey Homes
Homeowners choose GB Cosey Homes for loft insulation because the work needs to be accurate, respectful and clearly explained. Our approach focuses on honest assessment, careful installation and results that improve comfort without unnecessary disruption or pressure.
Clear, Straightforward Guidance
Explains what your loft needs in plain language, helping you understand the right solution clearly, without jargon, pressure or unnecessary recommendations at any stage.
Careful, Respectful Working Habits
Protects your home throughout the job, working tidily and carefully to minimise disruption while keeping spaces clean, organised and well managed at all times.

Skilled
Workmanship
Applies insulation evenly and to the correct depth, using experience and care to ensure proper coverage, long-term performance and reliable results throughout.
Honest
Assessment
Advises honestly if existing insulation only needs topping up, avoiding unnecessary replacement and helping you make informed decisions confidently from the start.
Noticeable
Results
Delivers improvements homeowners often feel quickly, with warmer rooms, steadier temperatures and better comfort experienced throughout the home year-round.
Predictable, Well Managed Process
Follows a clear process from assessment to final checks, so the work feels organised, predictable and professionally managed at every stage of the job.

When insulation work is carried out properly, the process should feel organised, respectful and easy to understand. From the first assessment through to completion, we focus on clear communication and steady workmanship so homeowners know exactly what is happening and why. Each stage is planned carefully to protect your home, minimise disruption and ensure the insulation performs as intended once the work is complete.
Before We Begin
We assess your loft, explain the current insulation condition and outline what is required.
During the work
You can expect:
Tidy, careful access
Clean working practices
Steady, accurate installation
Respect for your home
After the work
We tidy the area, explain the improvements made and ensure you are comfortable with the result.
Most homeowners notice:
A warmer home
Reduced heating time
Improved comfort in colder rooms
More balanced temperatures
"By completing the work methodically and carrying out final checks before we leave, we help ensure the insulation delivers lasting improvements to comfort and efficiency. Homeowners are typically left with warmer rooms, more stable temperatures and reduced reliance on heating, along with the reassurance that the loft has been upgraded correctly. The result is a quieter, more comfortable home that feels better protected and easier to live in throughout the year."
What You Can Expect During the Job
Nationwide Loft Insulation Service
We install loft insulation across the UK, including:
London, Manchester, Birmingham, Leeds, Bristol, Sheffield, Nottingham, Cardiff and surrounding areas.
Wherever you are, you can expect the same level of care, clarity and skilled workmanship.
If you're unsure whether we cover your area, give us a call. We'll let you know straight away.
Testimonials
Inviting someone to work in your home requires trust, and we understand how important that decision can be. Many homeowners come to us after feeling unsure or disappointed by previous experiences, so clear communication, reliability and respect for their space matter just as much as the finished work.
"The feedback shared here comes from real homeowners we have worked with across the UK. Their words reflect the care taken on each job, the way we explain the work clearly and the reassurance they felt throughout the process. These experiences matter to us because they show the standard we aim to deliver on every visit, in every home."
"Warmer Rooms Straight Away"
After the insulation was installed, the difference was immediate. Our bedrooms felt warmer and the heating wasn’t running constantly. A calm and professional service.
Louise M, Leeds
1 month ago
"Clear Advice And A Tidy Job"
They explained exactly what was wrong with our old insulation and handled the replacement carefully. The loft was left tidy and the house feels much more comfortable now.
Andrew P, Bristol
3 months ago
"Honest and Helpful"
We thought we needed full insulation replacement, but they explained we only needed a top-up in certain areas. The honesty was appreciated and the results were excellent.
Michelle R, London
6 months ago
"Professional and Reliable"
Everything was handled calmly and clearly. From the assessment to the installation, the team worked with real care. The home feels warmer and more balanced.
Daniel K, Manchester
9 months ago
Loft Insulation FAQS
Q1.
How do I know if my loft needs new insulation?
We check insulation depth, condition, and any signs of moisture or deterioration.
Q2. Does old insulation need removing?
Just choose a time that suits you. We will visit, assess the job and give clear guidance on the work required and the cost involved.
Q3. Will the installation cause disruption?
No. We work tidily, protect your home and keep disruption to a minimum.
Q4. How long does the work take?
Most insulation jobs are completed within a few hours, depending on loft size and condition.
Q5. Will insulation really make a noticeable difference?
Yes. Proper insulation helps retain heat, making your home feel warmer and reducing energy use.