A brick house with a gabled roof, white window trim, and a chimney in the background emitting white smoke against a cloudy sky.

Heat your home for less

Affordable Warmth Scheme

30+ years experience

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Available across NI & ROI

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Insulation & Damp Proofing

30+ years experience • Available across NI & ROI • Insulation & Damp Proofing

A brick house with a white gable and a multi-paned window. A brick chimney with white smoke rising from it against a cloudy sky.

Turn your cold house into a warm home today.

At SLM Insulation, we believe nobody should have to choose between a warm house and an affordable bank balance. We help homeowners across the region transform drafty, cold houses into cozy, energy-efficient homes.

Get in touch

What we offer

  • An icon of a barbell with weights on each end, representing weightlifting or exercise.

    Cavity Wall Insulation

    Stops heat from leaking through your walls, keeping your rooms warmer for longer.

  • Icon of a garage with a sloped roof and a horizontal door

    Loft Insulation

    Since heat rises, this is your home’s "winter hat"—essential for lower bills.

  • Line graph showing upward trend with an arrow pointing up

    Roof Ventilation

    Crucial for preventing attic mold and ensuring your home "breathes" properly.

  • Close-up of a single brownish-orange water droplet icon.

    Damp Solutions

    We identify the root cause of dampness to protect your health and your property.

We handle everything from start to finish so you can just sit back and feel the difference.

Complete Project Management
From the first inspection to the final cleanup, we handle it all.

Fully Guaranteed Work
We stand by our quality. You get peace of mind knowing the job is done right.

Expert Local Knowledge
We understand the specific housing styles and weather challenges in our community.

A man wearing a black cap with the words 'Black Diamond' is working inside a wooden structure with snow on the ground. He is using a tool, possibly a phone or measuring device, and is illuminated by a flashlight or light source.

“Communication was top-notch and the final outcome was even better than we imagined. A great experience all around.”

— Former Customer