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Cut Your Energy Bills
by Up to 50%
with Expert Loft Insulation

Professional loft insulation across Cardiff & surrounding areas. Keep your home warmer in winter, cooler in summer — and save money all year round.

✓ Free Assessment
✓ Installed in 1 Day
✓ 25 Year Guarantee
✓ From £250
Get Your Free Quote 📞 029 2252 3473
✓ Satisfaction Guaranteed 👥 Local Cardiff Team 🌿 Eco-Friendly
£720
Avg. Annual Savings
4.9★
500+ Google Reviews
15+
Years in Cardiff
🏆 25-Year Guarantee
⚡ Installed in 1 Day
🌿 Eco-Friendly Materials
📋 Free No-Obligation Quote
🦁 Proud Cardiff Business
What We Do

Our Services

Professional insulation solutions tailored for Cardiff homes

Knauf wool loft insulation Cardiff
Most Popular

Knauf Wool Insulation

Premium mineral wool — non-combustible, fire-resistant, and perfect for UK homes.

  • ✓ Save up to 50% on energy bills
  • ✓ Fire-resistant & non-combustible
  • ✓ 25-year guarantee
From £600 Learn More
SuperFOIL insulation Cardiff
Premium

SuperFOIL Insulation

Multi-layer reflective insulation — ultra-thin yet outstanding. Ideal for compact loft spaces.

  • ✓ Reflects 95% of radiant heat
  • ✓ Space-saving design
  • ✓ Lifetime guarantee
From £800 Learn More
Loft boarding Cardiff

Loft Boarding

Transform your loft into usable storage space without losing insulation performance.

  • ✓ Safe, load-bearing platform
  • ✓ Preserves insulation depth
  • ✓ Bespoke sizes available
From £500 Learn More
Mould treatment Cardiff

Mould Treatment

Professional mould removal with root cause analysis. We solve the source permanently.

  • ✓ Complete mould elimination
  • ✓ Anti-microbial treatment
  • ✓ Lasting prevention measures
From £300 Learn More
Rodent proofing Cardiff

Rodent Proofing

Comprehensive rodent proofing with permanent sealing to protect your home.

  • ✓ Full loft inspection
  • ✓ Humane removal
  • ✓ Permanent entry-point sealing
From £250 Learn More
Get Expert Advice — Free Quote
Why Us

Why Choose Cardiff Insulation Company?

Cardiff's most trusted insulation specialists since 2008

💰

Save Up To 50%

Average savings of £720 per year — money back from day one

⚡

Fast Installation

Most jobs completed in just 1 day with minimal disruption

🏆

25 Year Guarantee

Full written warranty on all work — peace of mind for decades

🛠

Expert Local Team

15+ years serving Cardiff. We know Welsh weather and Welsh homes

🌎

Eco-Friendly

Reduce your carbon footprint by up to 40%

📋

Free Assessment

No-obligation quote within 24 hours. No pushy sales

Coverage

Areas We Cover

Professional loft insulation across Cardiff & surrounding areas

Cardiff City Centre
Canton
Roath
Cathays
Pontcanna
Llandaff
Whitchurch
Rhiwbina
Heath
Llanishen
Cyncoed
Penylan
Splott
Grangetown
Riverside
Cardiff Bay
Ely
Fairwater
Radyr
St Fagans
Penarth
Barry
Dinas Powys
Caerphilly
Pontypridd
Cowbridge
Llantrisant
Newport

Not sure if we cover your area? Give us a call — we serve a wide range across South Wales.

Testimonials

What Our Customers Say

★★★★★
4.9 / 5.0

Based on 500+ verified Google reviews

★★★★★

"Excellent service from start to finish. Already noticing a huge difference in our heating bills! Professional, clean, finished ahead of schedule."

Sarah J., Canton
★★★★★

"Very professional team. Outstanding quality of work. They explained everything clearly and I felt completely confident in their expertise."

Mark T., Roath
★★★★★

"The house is so much warmer now. Worth every penny! First heating bill after installation was noticeably lower. Wish I had done this years ago."

Emma W., Pontcanna
★★★★★

"Best decision we made for the house. Energy bills have dropped significantly. Honest, tidy, and did a brilliant job."

David P., Whitchurch
★★★★★

"Couldn't fault them. Very tidy and respectful of our home. Hoovered up after themselves and left everything spotless."

Lisa M., Llanishen
★★★★★

"Great value for money and excellent customer service from first call to job done. The 25-year guarantee gives real peace of mind."

John R., Penarth
Expert Advice

From Our Blog

Honest guides and tips from Cardiff's insulation specialists

Is loft insulation worth it Cardiff Energy Saving
📅 March 2025 ⏱ 5 min read

Is Loft Insulation Actually Worth It in Cardiff? A Honest Answer from Local Experts

If you've been wondering whether loft insulation is worth the upfront cost, you're asking exactly the right question. Based on 15+ years of installations across Cardiff, the answer is a confident yes.

The average Cardiff semi-detached home loses around 25% of its heat through the roof. Loft insulation plugs that gap for 25+ years. With energy prices where they are, the average household we insulate saves between £400 and £720 per year — most homes break even within 12–18 months.

There's also a comfort factor customers don't expect — rooms feel warmer at lower thermostat settings, draughts reduce, and rain noise dampens. If you'd like to know exactly how much your home could save, we offer completely free assessments.

Book a Free Assessment
SuperFOIL vs Knauf Cardiff Comparison
📅 Feb 2025 ⏱ 4 min

SuperFOIL vs Knauf Wool: Which Is Right for Your Home?

Both are excellent — the right choice depends on your loft type and budget.

Ask Us Directly →
Loft mould Cardiff Health & Safety
📅 Jan 2025 ⏱ 3 min

Why Cardiff Homes Get Loft Mould — And How to Stop It

South Wales's wet climate makes Cardiff homes particularly prone to loft condensation.

Ask Us Directly →
View All Articles
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✓ Free home assessment
✓ No obligation, no pressure
✓ Expert honest advice
✓ Response within 24 hours

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📞 029 2252 3473 info@cardiffinsulationcompany.com

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Our Story

About Cardiff Insulation Company

We're Cardiff's leading loft insulation specialists, helping homeowners save money and stay comfortable since 2008. Born and based in Cardiff, we understand South Wales homes — the Victorian terraces, the post-war semis, the wet winters.

With 15+ years of experience and 500+ satisfied customers, we deliver exceptional service using only the highest quality materials from trusted brands like Knauf and SuperFOIL.

500+Happy Customers
15+Years Experience
4.9★Average Rating
£720Avg. Annual Saving