Professional Loft Insulation Services in London
We install high-performance loft insulation across London — reducing heat loss, cutting energy bills by up to £250 a year, and preventing the condensation that leads to damp and mould. Free survey, transparent pricing, no obligation.
Why insulate?
The Case for Loft Insulation
Up to 25% of a home’s heat escapes through an uninsulated roof. Loft insulation is one of the highest-ROI improvements you can make — typically paying back its cost within 2–3 years through reduced energy bills alone.
Lower Energy Bills
Save up to £250 annually by cutting heat loss through the roof — the single biggest source of domestic heat loss.
Year-Round Comfort
Traps warmth in winter and keeps excess heat out in summer, maintaining a consistent indoor temperature.
Condensation Prevention
Proper insulation reduces moisture buildup in the loft space — preventing the damp and mould that damage timbers and ceilings.
Reduced Carbon Footprint
Using less energy to heat your home directly cuts your household CO₂ emissions — without any change to your lifestyle.
Higher Property Value
An improved EPC rating can increase your property’s market value and rental appeal — increasingly important under post-2025 EPC rules.
40-Year Lifespan
Modern mineral wool insulation is virtually maintenance-free and remains effective for up to four decades.
The numbers make the case clearly
Source: Energy Saving Trust estimates for a typical semi-detached London property with no existing loft insulation, 270mm mineral wool installed.
What we offer
Our Loft Insulation Services
Tailored solutions for London homes — from Victorian terraces and period conversions to modern flats and new builds.
Full Loft Insulation Installation
Expert installation of mineral wool or fibreglass insulation to 270mm depth — the current UK Building Regulations standard for optimal thermal performance.
- 270mm installation (100mm + 170mm cross-layered)
- Full coverage — no gaps or cold bridges
- Ventilation gaps maintained at eaves
- Post-installation thermal check
Old Insulation Removal
Safe, eco-responsible removal of degraded or contaminated existing insulation before new materials are installed — essential for optimal performance.
- Assessment of existing material condition
- Safe extraction and bagging
- Eco-friendly disposal
- Loft prep for new installation
Pre-Installation Survey
A thorough assessment of your loft space before any work begins — identifying structural issues, existing damp, and the optimal insulation approach for your property.
- Moisture and damp checks
- Joist and structural inspection
- Thermal efficiency assessment
- Written, itemised quote
Post-Installation Checks
Every installation is followed by a final inspection and customer walkthrough — ensuring compliance with safety standards and maximum thermal performance.
- Compliance check against UK Building Regs
- Thermal coverage verification
- Customer walkthrough and handover
- Aftercare guarantee included
💡 You may qualify for free loft insulation under the ECO4 scheme
The Government’s Energy Company Obligation (ECO4) scheme may fund all or part of your loft insulation installation if you receive certain benefits or live in a lower-rated EPC property. We guide eligible homeowners through the application process at no cost.
Call us to check your eligibility → 020 4542 6114Insulation materials
What We Use and Why
All materials we install are BBA-approved, fire-resistant, and selected for their thermal efficiency. We advise on the best option for your property type and budget.
Mineral Wool (Glass Wool)
The industry-standard choice. Excellent thermal performance (λ 0.032–0.044 W/m·K), non-combustible, and cost-effective. Suitable for the vast majority of London loft types.
Fibreglass Insulation
Proven, affordable, and widely available. Excellent acoustic insulation properties alongside strong thermal performance. Ideal for straightforward pitched lofts.
Recycled & Natural Wool
For homeowners prioritising sustainability. Natural wool is hygroscopic — it can absorb and release moisture without losing thermal performance, beneficial in damp-prone lofts.
How it works
Our Installation Process
Seven clearly defined steps — from first contact to a warm, well-insulated loft. No surprises, no hidden costs.
Survey & Assessment
We inspect your loft, check for damp or structural issues, and measure heat loss.
Detailed Quote
Itemised, fixed-price quote with no obligation to proceed.
Materials Sourced
BBA-approved insulation wool delivered directly to your property.
Loft Prepared
Old insulation removed if needed; structural issues addressed first.
Installation
270mm mineral wool laid between and across joists with full coverage.
Inspection
Final compliance check, cleanup, and customer walkthrough.
Aftercare
Full guarantee and ongoing support from our team.
Property types
We Insulate All London Property Types
London’s housing stock is varied — from Edwardian terraces with tight eaves to top-floor flats with complex rooflines. Our surveyors assess each property individually.
Not sure if your loft is suitable? Call 020 4542 6114 — we’ll advise based on your property type before any visit.
Common questions
Loft Insulation FAQs
How much does loft insulation cost in London?
Which type of loft insulation is best?
Should I remove old loft insulation before laying new?
Can I get my loft insulated for free under ECO4?
How long does loft insulation installation take?
Does loft insulation cause condensation or damp?
Is 270mm of loft insulation enough?
What our customers say
Trusted by London Homeowners & Landlords
“Had our Victorian terrace in Finchley insulated top to bottom. The team were thorough, tidy and explained everything clearly. Noticeable difference in warmth after just one week.”
“They spotted that our old insulation was damp before laying new material — something another company had missed entirely. Professional and genuinely knowledgeable.”
“Guided us through the ECO4 application and we ended up getting the installation at significantly reduced cost. Excellent communication throughout.”
Get in touch
Book a Free Loft Insulation Survey
Speak to a Loft Insulation Specialist
Tell us about your property — loft size, current insulation (if any), and what you’re hoping to achieve. We’ll advise on the best approach before booking a survey visit. Same-week appointments frequently available across London.
💡 Tip: When emailing, include your postcode and a brief description of your loft (pitched/flat, size, existing insulation) — this helps us advise accurately before the visit.
Request a Free Survey
Same-week appointments frequently available across London.
Start Saving on Your Energy Bills This Season
Loft insulation pays for itself. A free survey costs nothing — and the longer you wait, the more heat (and money) escapes through your roof.