First Class Building

Extending Homes In Dublin

We Build The Finest Quality House And Attic Extensions To Homes And Businesses In Dublin

Contact Us086-105-1244

First Class Building

Extending Homes In Dublin

The Finest Quality House And Attic Extensions

Finest Home Extensions & Attic Conversions

Welcome To First Class Building

First-class building are one of Ireland’s leading experts in home renovations. We have extensive knowledge of all aspects of the building trade.


 Home Improvement Specialists

We specialise in a wide variety of home improvement and extension services in Dublin which will expand your living space, add value to, and breathe new life into your home.

With a new home extension or attic conversion you can get the new room of your choice be it a new bathroom, living area or games room without the inconvenience of moving.

Cost-effective home extensions in Dublin with first-class building.

With house prices rising all the time, home extensions are relatively cost-effective. There are many reasons you may not want to actually move but still want to change the living space you have available.
This is where a good builder is invaluable. We make your dreams a reality and provide you with the home you really want at an affordable price.
We can help you organise and plan your new living space with little fuss. We can fully organise and project manage everything leaving you free to carry on as normal.

Our Services

Attic Conversions

New Builds

House Extensions

Why Choose First Class Building?

Competitive Pricing

Our Experience, Quality & Value

Viewings Of Past Customers’ Work Can Be Arranged

Full Project Management Included

National Guild Of Master Craftsmen Logo

Health and Safety Report Provided

All Our Materials Are Certified & Of The Highest Quality

Member of The National Guild Of Master Craftsmen

Over 15 Years in Business

Get A Professional Inspection & Free Quote

We provide a complimentary professional consultation & quotation. If you are looking to convert your attic, add an extension or refurbish your home then call us on 086 105 1244.

We Can Arrange For You To See Some Of Our Completed Work

For those who would like to see first hand what we have done for other homeowners we can arrange a visit to a past project.



Architects Certificate of Compliance

First Class Building work to the highest standards and is a registered building contractor that complies with Irish building regulations and has employee and public liability insurance.

A Certificate of Compliance is Issued by a qualified architect when structural alterations have been made to comply with Irish building regulations.




Over 15 Years Experience


Fully Insured


References Available


Full Project Management Included

Some Of Our Completed Projects

House Renovation Terenure

Full House Renovation in Terenure, Dublin 6

Krystal Nightclub/Dicey’s Garden

Full Refurbishment

Private House, Sutton

Attic Conversion, Bathroom Fit out

New Build, Cabinteely

New Build, two Story

House Renovation Clontarf

Full House Renovation and Attic Conversion Clontarf

49-50 Leeson Park

Conservation Work, Large Two Story

Request A Free, No Obligation Consultation

Call Us Today On  0861051244 To Find Out More