Building Contractors in Dublin & Ireland

Are you dreaming of building a home?

Coastal Homes, your trusted building contractors in Dublin and across Ireland, are here to simplify your home construction journey. We understand the challenges of building a new home and are committed to providing a seamless experience.

Ready to take the first step? Let’s start building your dream home together!

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We’re just one click away. Fill out the form below to start your journey with us.

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Why Choose Coastal Homes for Deep Retrofit Services in Dublin?

Proven Track Record

With years of experience in the design and build industry, Coastal Homes has successfully completed numerous deep retrofit projects in Dublin. Our portfolio speaks for itself, showcasing our commitment to excellence and our ability to deliver results that exceed expectations.

Transparent Pricing

Worried about the cost of deep retrofit? At Coastal Homes, we believe in transparent pricing. No hidden costs, no surprises. We provide detailed quotations, ensuring you understand every aspect of the investment you’re making in your home.

SEAI Approved

Our SEAI deep retrofit services ensure that your home not only meets but exceeds the Sustainable Energy Authority of Ireland’s standards. This not only guarantees energy efficiency but also ensures eligibility for various grants and incentives.

Comprehensive Services

From the initial consultation to the final handover, our deep retrofit services cover every aspect of the process. Our team of experts ensures that every detail is taken care of, delivering a seamless retrofit experience.

Customer-Centric Approach

For Coastal Homes, every project is personal. We understand the unique needs of Irish homeowners and tailor our services accordingly. Our team is always available to address any concerns, ensuring complete customer satisfaction.

deep retrofit

Get Your Dream Home in Three Easy Steps!

Design Consultation

Got a vision for your dream home? Share it with us! Our expert team is all ears, ready to understand and incorporate your unique needs into the design.


Watch your dream take shape! Our skilled builders ensure quality construction, keeping you in the loop at every step. We believe in making the process transparent and enjoyable for you.


The moment you’ve been waiting for stepping into your dream home! We ensure a smooth handover process, leaving you to enjoy the comfort and beauty of your new beautiful home.

seai deep retrofit

Professional & Experienced Deep Retrofit Company in Dublin

The challenges of deep energy retrofits for existing homes can be daunting. From understanding the deep retrofit cost to choosing the right materials, the process can be overwhelming. At Coastal Homes, we understand these challenges and are here to guide you every step of the way. 

Our services include:

  • Comprehensive energy audits
  • Personalised retrofit plans
  • SEAI grant application assistance
  • End-to-end project management

Our Comprehensive Services

Solar PV Installation

Harness the power of the sun and reduce your energy bills with our Solar PV installation services. Our expert team designs and instals solar systems tailored to your home’s needs, ensuring optimal energy generation and significant savings.

Heat Pumps

Modernise your home’s heating system with our state-of-the-art heat pumps. These systems are not only energy-efficient but also environmentally friendly, providing consistent warmth throughout your home while reducing carbon emissions.

House Insulation

A well-insulated home is key to energy efficiency. Our house insulation services ensure that your home retains heat effectively, reducing the need for excessive heating and, in turn, lowering energy bills.

Roof Insulation

The roof is one of the primary areas where heat can escape. Our roof insulation services ensure that your home’s top layer is sealed tight, preventing heat loss and ensuring a warm and cosy environment, especially during those chilly Dublin winters.

Underfloor Heating

Experience the luxury and efficiency of underfloor heating with Coastal Homes. Our systems provide even heat distribution, ensuring every corner of your room is comfortably warm. Plus, with no need for radiators, you’ll enjoy a sleek and modern aesthetic in your living spaces.

deep energy retrofit

Dreaming of a custom-built home?

At Coastal Homes, we transform dreams into reality. Embark on your journey with us today and let’s create your perfect haven.

Services We Provide at Coastal Homes

House Extensions

House Extensions

House Renovation

House Renovation

Windows & Doors

Windows & Doors

House Insulation

House Insulation

Solar Panels

Solar Panels Installation

Interior Design

Attic Conversion

deep retrofit dublin

Our Process

Initial Consultation

Every deep retrofit journey begins with a detailed consultation. We understand your goals, assess your home’s current state, and provide a clear roadmap for the retrofit process.

Detailed Assessment

Our team conducts a comprehensive assessment of your home, identifying areas of energy loss and potential improvements. This ensures a tailored retrofit solution that meets your specific needs.


With a clear plan in place, our team gets to work. From insulation upgrades to heating system maintenance, we ensure that every aspect of the deep retrofit is executed to perfection.

Final Handover

Once the retrofit is complete, we conduct a final review, ensuring every detail meets our highest quality standards. We then hand over your transformed, energy-efficient home.

What Our Client Says

Coastal Homes built my dream home! Their attention to detail and professionalism is unmatched.

I couldn’t be more happier!

Coastal Homes has a fantastic team!

They turned my vision into a reality and built a home that exceeded my expectations.

I can’t thank Coastal Homes enough! They made the construction process easy and enjoyable.

I love my new home!

Coastal Homes is the best!

They built a beautiful home that fits all my needs. The team is friendly and professional.

I had a great experience with Coastal Homes. They understood what I wanted and delivered beyond my expectations.

Coastal Homes is amazing!

They helped me design and build my dream home. The process was easy and stress-free.

I highly recommend Coastal Homes!

They made the construction process simple and enjoyable. I’m in love with my new home!”

Coastal Homes exceeded my expectations!

They built the perfect home for me. The team is professional and attentive.

I had a wonderful experience with Coastal Homes. They made the construction process easy and enjoyable.

In love with my new home!

Frequently Asked Questions

What is a deep retrofit?

A deep retrofit involves upgrading a home’s energy performance to a very high standard, often aiming for a B2 BER rating or better. It’s a comprehensive approach that addresses insulation, heating, windows, doors, and renewable energy sources.

How much does a deep retrofit cost in Dublin?

The cost of a deep retrofit can vary based on the size and condition of the property. On average, homeowners might spend between €20,000 to €50,000. It’s advisable to get a detailed quotation from a reputable service provider like Coastal Homes.

Are there grants available for deep retrofitting in Dublin?

Yes, the Sustainable Energy Authority of Ireland (SEAI) offers grants for deep retrofit projects. The grant can cover a significant portion of the costs, making it more affordable for homeowners.

How long does a deep retrofit take?

The duration of a deep retrofit project can vary based on the scope of work and the size of the property. Typically, it might take anywhere from a few weeks to a few months.

How can a deep retrofit benefit me as a homeowner in Dublin?

A deep retrofit can significantly reduce energy bills, enhance indoor comfort, increase property value, and reduce the home’s carbon footprint. It’s an investment that pays off in both comfort and savings.

Do I need to move out during the retrofit process?

It depends on the extent of the retrofit. Some homeowners choose to stay, especially if the work is done in stages. However, for a smoother process and less disruption, it might be advisable to temporarily relocate.

Save Big with the Best Deep Retrofit Services in Dublin!

Ready to transform your space into an energy-efficient home? With Coastal Homes’ deep retrofit services in Dublin, you’re in safe hands. Experience the comfort of a well-insulated home and the joy of reduced energy bills. Our commitment is to provide you with unparalleled quality and service. 

Fill out our contact form, and we assure you a response within 2-4 hours. For urgent inquiries, don’t hesitate to call us. Your dream home awaits!

Get in Touch with Coastal Homes!

We’re just one click away. Fill out the form below to start your journey with us.

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