O Flaherty Construction, Builder, Palmerstown, Co. Dublin,

For Building Work That's Built On Experience

About Us

About Us

O' Flaherty Construction was founded in 1995 by Pat O' Flaherty to provide a high quality building service to Dublin homes and businesses. Since then, we have successfully completed over 300 building projects including new builds, extensions, renovations, attic conversions, bathroom renovations and porches. We have also carried out a number of modification projects under the local authority Housing Adaptation Grant scheme. 

Typically, approximately 50% of our projects are architect designed and managed. We work directly with the homeowner in the remainder of projects. In either case, our priorities are the same - a clear plan, regular communication with all our clients and quality building.

We're very proud of the quality and consistency of our work. We'll be happy to arrange for you to visit previous projects and speak to our previous clients.

Contact Us

Our Services

  • New Builds
  • Extensions
  • Renovations
  • Attic Conversions
  • Bathroom Renovations
  • Disability Alterations
  • Porches
  • Garden Rooms
  • Structural Alterations
  • General Building
  • Brick Laying

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Our Promise

Clear Planning

A clear detailed plan is key to a successful building project. We take the time to discuss your ideas fully and to explain the options open to you.

Competitive Quotations

We provide a detailed, clear quotation based on your requirements. Our quotations are competitive and will not change unless the project scope changes.

Project Management & Communication

Pat project manages every aspect of the build and provide daily status updates.

Experienced Team

We have a small core staff of direct employees. We also work with an excellent group tradespeople where specialist skills are required.

Ongoing Care

O; Flaherty Construction are in business for over 25 years in Dublin and we value our reputation. We will always be available after the project should any issues arise.

Housing Adaptations

We have completed a number of home renovation schemes under the Local Authority Housing Adaptation Grant scheme. 

Our Services

Get In Contact

We'd be happy to discuss your project ideas with you in more detail. Contact us by phone or email and we'll arrange a site visit at a time to suit you.

Our Work

Extension and Renovation in Lucan

O Flaherty Construction, Dublin Lucan, Co. Dublin

A lightfilled and modern extension and full renovation designed by the home owner with input from O' Flaherty Construction. The layout of the first floor was changed, a new bathroom was installed and another was refurbished. The house was  refloored, replumbed, rewired, painted and insulated to a B1 standard. A 20 square metre extension was also added to the back of the house.

A lightfilled and modern extension and full renovation designed by the home owner with input from O' Flaherty Construction. The layout of the first floor was changed, a new bathroom ...

Sun Room Extension and Paved Garden

O Flaherty Construction, Dublin

Beautiful sunroom extension with easy access to a spacious patio area. 

Beautiful sunroom extension with easy access to a spacious patio area. 

Rathfarnham Extension, Attic Conversion and Paving.

O Flaherty Construction, Dublin Rathfarnham, Co. Dublin
Rear extension added with new kitchen and utility. Attic conversion with ensuite shower room and realignment of boundary walls with brickwork and timber fence panels . New porcelain paving slabs with retaining wall in brick. Rear extension added with new kitchen and utility. Attic conversion with ensuite shower room and realignment of boundary walls with brickwork and timber fence panels . New porcelain ...

Kitchen Renovation Palmerstown Dublin 20

O Flaherty Construction, Dublin Palmerstown, Dublin 20
A beautiful and contemporary kitchen renovation at Palmerstown Dublin 20. All work completed by the team at O' Flaherty Construction. A beautiful and contemporary kitchen renovation at Palmerstown Dublin 20. All work completed by the team at O' Flaherty Construction.

Extension and Renovation, Dublin 20

O Flaherty Construction, Dublin Palmerstown, Dublin 20
A full width, open plan kitchen/dining extension with a new utility room and downstairs toilet. Upstairs the attic was converted to an additional room with ensuite and the family bathroom was renovated. A full width, open plan kitchen/dining extension with a new utility room and downstairs toilet. Upstairs the attic was converted to an additional room with ensuite and the family ...

Attic Dormer Extension Rathcoole

O Flaherty Construction, Dublin Rathcoole, Dublin 24
Our brief was to increase the living space in an existing small attic conversion and to improve access. The resulting dormer conversion gave the homeowners a large, bright extra bedroom with ensuite. We also upgraded the attic stairs to allow for safe, easy access. Our brief was to increase the living space in an existing small attic conversion and to improve access. The resulting dormer conversion gave the homeowners a large, bright extra ...

Contemporary Extension Churchtown

O Flaherty Construction, Dublin Churchtown, Dublin 14
A large contemporary steel extension which floods this traditional home with light throughout the day. A large contemporary steel extension which floods this traditional home with light throughout the day.

Open Plan Kitchen/Dining Room Lucan

O Flaherty Construction, Dublin Lucan, Dublin 20
A major upgrade of the kitchen/dining area for a Lucan home. By taking down a wall, a large open plan space was create and raising the extension roof further enhanced the sense of space. New grey windows were fitted throughout the house. A major upgrade of the kitchen/dining area for a Lucan home. By taking down a wall, a large open plan space was create and raising the extension roof further enhanced the sense ...

Garage Conversion and Porch Dublin 6W

O Flaherty Construction, Dublin Kimmage, Dublin 6W
This project involved several upgrades - a garage conversion with ensuite, new porch and attic insulation. This project involved several upgrades - a garage conversion with ensuite, new porch and attic insulation.

Sunroom Extension Palmerstown Dublin 20

O Flaherty Construction, Dublin Palmerstown, Dublin 20
A bright sunny extension designed to bring in the maximum light and create valuable extra living space in this Palmerstown home. A bright sunny extension designed to bring in the maximum light and create valuable extra living space in this Palmerstown home.

Full Width Rear Extension Palmerstown

O Flaherty Construction, Dublin Palmerstown, Dublin 20
This simple, nice proportioned rear extension added considerable extra space to a family home. Scroll down to see project in progress. This simple, nice proportioned rear extension added considerable extra space to a family home. Scroll down to see project in progress.

New Brick Porch Ballyfermot Dublin 10

O Flaherty Construction, Dublin Ballyfermot, Dublin 10
Attractive new brick porch with easy access double doors. Attractive new brick porch with easy access double doors.

Kitchen Dining Extension Leixlip

O Flaherty Construction, Dublin Leixlip, Co. Dublin
Large modern kitchen/dining extension at Leixlip, Co. Dublin. Large modern kitchen/dining extension at Leixlip, Co. Dublin.

Disability Bedroom/Bathroom Extension Artane

O Flaherty Construction, Dublin Artane, Dublin 5
Brick extension for a disability bedroom and bathroom with hipped roof, french doors, roof lights and double aspect views. Brick extension for a disability bedroom and bathroom with hipped roof, french doors, roof lights and double aspect views.

Two Storey Side Extensions

O Flaherty Construction, Dublin Palmerstown, Co. Dublin
Two different two storey side extensions, both completed in the Palmerstown area. Two different two storey side extensions, both completed in the Palmerstown area.

Our Customers Say

High Quality Extension, Renovation and Upgrade
Pat has a "can do" attitude and the team took pride in the quality of their work. He only works 1 project at a time so that he can focus all of his attention on doing a good job.
Ekaterina
Lucan, Co. Dublin
Stress Free Sunroom Extension and Landscaping
I just felt a good vibe about Pat when he came out. He wasn't pushy and he had great ideas.
Catriona
Tallaght, Co. Dublin
Extension, Conversion and Patio
It couldn't have gone better...Pat went over and above what he had to do and we're delighted with the result.
Caroline Murphy
Rathfarnham, Dublin 16
Attic Conversion in Dublin 6
We went with Pat because I found him open to suggestion and ideas. He also seemed professional and was priced right.
Jackie Heather
Kimmage, Dublin 6
Very Happy With Workmanship
I trusted the fact that if Pat was bringing someone into the house that they were good at what they did and that they were reliable.
Annette Walsh
Templeogue, Dublin 6W
Good Suggestions for Extension
Pat seemed the most knowledgeable and that put me at ease.
Noeleen Young
Palmerstown, Dublin 20
Extension and Adaptation in Dublin 10
It was just great to have someone that you could trust....Pat knew what we needed and he did it.
Rose de Lacy
Ballyfermot, Dublin 10
Kitchen is Transformed
One reason we went with Pat was price and the other reason was that we felt Pat was somebody we could work with.
Ann Simpson
Lucan, Dublin 20
Will Continue To Recommend
Workmanship is second to none. And when Pat's on a job, he's on the job all day every day.
Paul Redmond
Architectural Services Ltd, Co. Kildare
Always On The Project
Pat always seems to come in on the price. It's rare that I see Pat at the end of the job with a big list of extras.
Jeremy Kelly, Architectural Technologist and Building Surveyor
Eco Design and Management, Co. Kildare
Garage Conversion - Recommended
Pat and staff wasted no time and completed the job ahead of time
Richard Doran
Co. Dublin
Punctual and Courteous
Happy to recommend Pat and would use him again in the future.
Anne G.
Co. Dublin
Outstanding Quality
Pat explained all the options to us well before decisions had to be made and was very reasonable with change requests.
Louise Hendrick
Co. Dublin
Extremely Pleased
Professional and efficient right from the initial planning, through the building process to the completion of the project.
Eileen White
Co. Dublin

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O Flaherty Construction

Woodfarm Acres, Palmerstown, Co. Dublin

Our Projects

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Our Customers Say

High Quality Extension, Renovation and Upgrade
Pat has a "can do" attitude and the team took pride in the quality of their work. He only works 1 project at a time so that he can focus all of his attention on doing a good job.
Ekaterina from Lucan, Co. Dublin talks to pickapro.. See full interview
Stress Free Sunroom Extension and Landscaping
I just felt a good vibe about Pat when he came out. He wasn't pushy and he had great ideas.
Catriona from Tallaght, Co. Dublin talks to pickapro.. See full interview
Extension, Conversion and Patio
It couldn't have gone better...Pat went over and above what he had to do and we're delighted with the result.
Caroline Murphy from Rathfarnham, Dublin 16 talks to pickapro.. See full interview
Attic Conversion in Dublin 6
We went with Pat because I found him open to suggestion and ideas. He also seemed professional and was priced right.
Jackie Heather from Kimmage, Dublin 6 talks to pickapro.. See full interview
Very Happy With Workmanship
I trusted the fact that if Pat was bringing someone into the house that they were good at what they did and that they were reliable.
Annette Walsh from Templeogue, Dublin 6W talks to pickapro.. See full interview
Good Suggestions for Extension
Pat seemed the most knowledgeable and that put me at ease.
Noeleen Young from Palmerstown, Dublin 20 talks to pickapro.. See full interview
Extension and Adaptation in Dublin 10
It was just great to have someone that you could trust....Pat knew what we needed and he did it.
Rose de Lacy from Ballyfermot, Dublin 10 talks to pickapro.. See full interview
Kitchen is Transformed
One reason we went with Pat was price and the other reason was that we felt Pat was somebody we could work with.
Ann Simpson from Lucan, Dublin 20 talks to pickapro.. See full interview
Will Continue To Recommend
Workmanship is second to none. And when Pat's on a job, he's on the job all day every day.
Paul Redmond from Architectural Services Ltd, Co. Kildare talks to pickapro.. See full interview
Always On The Project
Pat always seems to come in on the price. It's rare that I see Pat at the end of the job with a big list of extras.
Jeremy Kelly, Architectural Technologist and Building Surveyor from Eco Design and Management, Co. Kildare talks to pickapro.. See full interview
Garage Conversion - Recommended
Pat and staff wasted no time and completed the job ahead of time
Richard Doran from Co. Dublin talks to pickapro.. See full interview
Punctual and Courteous
Happy to recommend Pat and would use him again in the future.
Anne G. from Co. Dublin talks to pickapro.. See full interview
Outstanding Quality
Pat explained all the options to us well before decisions had to be made and was very reasonable with change requests.
Louise Hendrick from Co. Dublin talks to pickapro.. See full interview
Extremely Pleased
Professional and efficient right from the initial planning, through the building process to the completion of the project.
Eileen White from Co. Dublin talks to pickapro.. See full interview
View all 14 recommendations