Leading Irish Building Company. Bespoke Bathrooms, Remodeling, Doors & Windows and More!

We are a leading Irish construction company who specialises in Bespoke Bathroom renovations & extensions. Our team offers a wide range of construction services, meaning your project is completely managed by us

Our Services

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Bespoke Bathrooms

We specialise in designing, supplying & fitting bespoke bathrooms. You can be sure that we have a bathroom to fit any style & space.

- Kitchen Remodelling in Dublin

Kitchen Remodelling

Crystal Complete Building has the skills and experience to advise on new kitchens, and how to maximise the space available.

interior remodelling in dublin company

Interior Remodelling

Transform your space through a complete remodelling of the interior. We offer a wide range of remodeling solutions to suit any space.

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Conservatory Conversion

Build a ‘room outside’ with a conservatory or sunroom and discover the difference between the two.

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Windows

Our team replaces old windows with new energy efficient windows, or installs new Velux windows to brighten up a room or hallway.

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Doors

Choose from a wide and varied selection of front doors, back doors, fire-proof doors and internal and external doors for your home.

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Attic Insulation

We offer a comprehensive attic insulation service that increases the value of your property by improving its BER rating.

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Flat Roof Insulation & Covering

Improve the Energy Efficiency of your home and increase your property value by increasing your BER rating.

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Interior Insulation

Insulate your home to improve your property value by increasing your BER rating, as well as saving on energy bills.

We Specialise in Bespoke Bathrooms

Crystal Complete Building is a family-run, Irish owned company in the construction business for over 30 years. Cavan born Seamus Carolan started the company in Dublin in 1983, then trading as Crystal Construction. Seamus soon trained his two young sons, Daragh and Stephen, who took over the company almost twenty years later, after Seamus passed away. The brothers pride themselves on continuing their father’s high standards in every project they undertake. Specialising in home extensions, conservatories, attic conversions and property renovations, Crystal Complete Builders advise on home improvement grants, increasing the energy efficiency of your home and installing and fitting new kitchens and bathrooms.

Our Galleries

We specialise in Bespoke Bathrooms, Interior Remodelling & Insulation Services. With over 20 years of experience, we developed strong & trusted relationships with our clients. We worked with a wide range of customers on a variety of projects. Browse our Gallery to get a closer look at our work. 

Start Your Project Today!

Get in touch today to discuss your project and options. Alternatively, there are a range of Grants available to our customers. Follow the link to see if you are eligible.

Aislinn Duffy
Aislinn Duffy
2023-09-03
Darragh and the lads did the most amazing job on my en-suite bathroom. Couldn’t have had been more helpful, professional, friendly, respectful of my home especially as I was working from home while they were on site. Darragh helped me pick colours, tiles, all finishes and explained everything in detail reassuring me every step of the way in the decision making process. I would highly recommend Crystal for any job, I wouldn’t hire anyone else. Very reasonable pricing and they left my house spotless afterwards! Thanks a million Darragh 😊
Fionnuala Kilcoyne
Fionnuala Kilcoyne
2021-10-22
We have used Crystal Complete Building on a number of occasions for home improvement building and most recently for a full bathroom renovation. CCB are highly skilled, efficient, competitively priced, trustworthy and they work extremely safely to all health / safely and government requirements. I have no hesitation in 100% recommending Daragh and the team!
Mark McGrath
Mark McGrath
2021-03-02
Daragh and his team did a fantastic job on the work we needed doing on our house. Despite the constantly changing lockdown rules, Daragh managed to get all the work done efficiently and quickly, which we were really grateful for as we have young kids and we had a lot of differing jobs done and the quality of excellent. Couldn't have wished for more helpful and pleasant people to do it either.
Maura Walsh
Maura Walsh
2017-05-15
We engaged Crystal Complete Building to add a new level access bathroom to our home. From the planning stage to the end result our experience with Daragh ,Stephen and the team was exceptional, they were friendly, helpful, and knowledgeable They had a great work ethic, starting promptly at 8am, working long days and tidied up each evening leaving the building safe and secure. Daragh and Stephen consulted at various stages of the process, advising and making best use of the space available but always with disability access in mind.We are delighted with our new bathroom, completed to a high standard and have no hesitation in recommending Crystal Complete Builders for any work
Jackie Hannon
Jackie Hannon
2017-03-22
I would absolutely recommend Crystal Complete Building. I found them friendly, professional, punctual and very well priced. We are delighted with the end result and it was the best decision for our family to employ them to extend our kitchen. The work was completed on-time and within budget.
Audrey Campbell
Audrey Campbell
2017-03-10
Crystal Complete delivered a great result for me on my tricky old house, with massed concrete & granite walls like the Waves of Tory. They insulated, plastered, replaced windows and floors etc very satisfactorily, finding solutions to all the building's problems. The rooms are now cosy and crisp, a pleasure to be in.Tidied up after themselves each evening, very clean work Polite and pleasant, started punctually early every morning. Great work all round.
Frances Meleady
Frances Meleady
2017-03-10
Extremely professional and efficient company with very hard-working and amenable team. Great results in transforming our conservatory.
Colin Scanlan
Colin Scanlan
2015-12-23
From beginning to end our experience with Daragh and Stephen was exceptional. From a design perspective Daragh went above and beyond....in truth doing the job of an architect. Throughout the course of the project the scope expanded from an initial extension, to a clearing of an overgrown garden and finally a patio - this was due to the level of confidence we had in the team. We were very happy with the end product and would have no hesitation in recommending Crystal Complete Building. The post completion support service was also excellent.
We used Crystal to build a third story sunroom on our private residence. Both ourselves and our surveyor found Daragh Carolan to be very competent, efficient, and helpful. During the construction Daragh and his crew were friendly and approachable but polite and unobtrusive. They were punctual and kept affected areas clean. The project was finished on time with no complications and we are delighted with the results. I would not hesitate to highly recommend Crystal Complete Building for any similar work.
Eileen Gannon
Dunshaughlin, Co. Meath
The work was carried out in an efficient manner with minimal disruption to our family life. At the end of each day the area was cleared of debris and tidied thoroughly. The building area was cordoned off and made safe which was comforting given the number of small children who play on the road each day. We found Daragh and Stephen to be helpful, friendly and knowledgeable at all times and engaged them to carry out additional work as a result. The timescale for completion of works was 10 weeks and despite temperatures of minus 10 degrees and heavy snowfall the works were complete on time. We are extremely please with our new extension and would have no hesitation in recommending Crystal Complete Building.
Thomas & Karan Nesbitt
Dunshaughlin, Co. Meath
The project was scheduled to take 12 weeks and true to their word, Crystal Complete Building completed the project on time and within budget. Daragh Carolan was our main point of contact throughout the project and we found both him and the team, including Stephen and Seamus Carolan, easy to deal with, reliable and trustworthy. Crystal Complete Building provided us with very helpful suggestions at the design stage which undoubtedly improved the overall appearance of the end result. All variations that arose during the project were agreed in advance and priced reasonably.
Daragh Clarke
Clontarf, Dublin
We have no hesitation in recommending Crystal. From our first contact with them everything ran smoothly and professionally. Phonecalls were returned, work was carried out within budget and on time, a clean site was maintained at all times, ideas were generated that worked in our space. On the whole an excellent experience for us. When your neighbours notice how well they work, it has to be a recommendation in itself! They are professional, courteous, conscientious and very personable.
Niamh Allman
Dunboyne, Co. Meath
Crystal Complete Builders built an extra bedroom along with a study during April and May 2012. We would have no hesitation recommending this family builder for a number of reasons. Price - they were good value, offering excellent work and attention to detail. Commitment - they said they would finish by the end of May and they were, working long days to complete on time. Professional - they were very hard working. They were friendly, very tidy and especially respectful to our neighbours.
Brian & Geraldine Kavanagh
Raheny, Dublin 5
Crystal Complete Builders completed an extension for us just before Christmas 2014. We went with them for a number of reasons: competitive price, impressed with the hours they put in & work completed on a neighbours home. But what sold us was our initial meetings with Daragh - we liked and trusted him & his expertise, everything was easy!! This followed throughout the build, any questions we had were promptly answered, his team was always very respectful of us & our neighbours. They would put in long hours in any weather condition & the weather was pretty brutal the first few weeks of November! At the end of everyday they would clean & make the area safe, which was very comforting with 3 young children. Their professionalism, dedication and reliability is outstanding, and they made the whole build a stress free experience. We are delighted with our extension & wouldn't hesitate to use them again.
Aveen & Eoin Foster
Skerries, Co. Dublin
Crystal Complete Building renovated our house in 2015. Stephen, Daragh and the entire crew were easy to deal with, punctual, conscientious and hard working. Stephen and Daragh provided great advice throughout the project while Stephen ensured high standards were maintained in all aspects of the job. The materials and workmanship were first class and we are absolutely delighted with our new home. We highly recommend Crystal Complete Building.
Seán and Sinéad Ahearne
Skerries, Co. Dublin