Building Excellence,
Delivering Quality

SEAI & NSAI Approved General Building Contractor
Specialists in Attic and External Wall Insulation

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Our Services

Premium construction and retrofit solutions tailored to your needs

Attic Insulation

SEAI approved attic insulation services to improve your home's energy efficiency and reduce heating costs.

External Wall Insulation

NSAI approved external wall insulation systems that enhance your property's thermal performance and appearance.

General Building

Comprehensive building contractor services for residential and commercial projects of all sizes.

Deep Retrofit Solutions

End-to-end deep retrofit project management. We liaise with architects and coordinate all aspects to modernize your property and maximize energy efficiency.

Derelict & Vacant Property Grants

Specialists in derelict and vacant property renovations. We manage the entire project and liaise with community grant providers from start to finish.

Expert Team

Experienced professionals dedicated to delivering exceptional craftsmanship and service.

Building Trust in Letterkenny

RMN Construction & Retrofit is a premium general building contractor based in Letterkenny, Ireland. We specialize in energy-efficient retrofitting solutions and quality construction services.

As SEAI and NSAI approved contractors, we deliver certified attic and external wall insulation installations that meet the highest industry standards. Our commitment to excellence ensures every project receives meticulous attention to detail.

From residential renovations to commercial builds, we bring professional expertise and a dedication to quality that our clients have trusted for years.

100+

Projects Completed

SEAI

Approved

NSAI

Certified

Our Projects

Explore our completed projects across various specializations

Attic Insulation

1 / 5

External Wall Insulation

1 / 8

Concrete Laying / Paving / Driveways

1 / 4

Expert concrete laying and paving services for driveways, patios, and outdoor spaces with precision and quality craftsmanship.

Deep Retrofitting / Derelict and Vacant Property Upgrades

1 / 8

Comprehensive deep retrofit and derelict property transformation services. We manage the entire project from start to finish, liaising with architects and grant providers to modernize properties and maximize energy efficiency.