Garden Rooms & Extensions

How it works:

Site Visit

One of our surveyors needs to visit your site before we can give you an accurate quote. They will check for things like drainage, sewer positions, overhead wires etc and make sure the site is ready to be built upon. 


Once the site is deemed workable, the team will discuss your requirements. They will sit with you and plan the build together. Once they understand your needs, they will deliver a quote to you. 


On average, a standard build takes 4-6 weeks. This may be extended due to adverse weather conditions, or if a larger than average build is being constructed. 

Request a callback

Or call us direct at:

(01) 864 4247

Heatwave Extensions and Garden Rooms are the most thorough and well thought through options on the Irish Extensions Market. Concerning themselves with both cost and quality, Heatwave can deliver you the quality house extension or garden room of your dreams at an affordable price. 

Our team are fully trained and insured, high quality builders who can help you plan your new build. If you’re looking for ideas for your extension, our team can advise on what would work for you. If you’re not sure if you need planning permission for your new build, our team can advise on the specifics that may affect you. If you’re looking to build an extension or garden room without an architect, the Heatwave Team can facilitate this. All Heatwave extensions are block-builds, built to regulations.

Our team can build house extensions in Dublin, Meath, Louth Kildare and Wicklow. If you’re further field, drop us a line to see if we can accommodate you. So, whether you’re looking for an extension of a semi detached house, a garden room at the far end of your back garden or to talk to someone about garden living rooms, the Heatwave Team can help you. 

Contact us today.


Just note, they are all fully customisable to suit your plans.

Standard Electrical Package includes

6 x brushed chrome double sockets
10 x brushed chrome down lights
2 x brushed chrome double light switches.
5 x brushed chrome external up/down lights. 
1 x connection to fuse board. 

(This is based on the Standard Showroom package.
This can be changed based on your requirements)

External finish

The Finish on our extensions and Garden rooms is an external
plaster and is K Rend with a selection of colours from the K Rend catalogue.

(Your existing house finish can also be applied.)

About Heatwave

Heatwave Extensions Ltd. are a building company based in the Louth/Dublin area. Our house extension and garden room showroom is based in Sheds Direct Ireland, Jamestown Business Park, Finglas, Dublin 11. 

There you will find a fully finished, display model extension that carries a very attractive and  competitive turnkey price. The model extension is available to view so, you can visit and experience an exact model of what you can have in your own home. 

A Heatwave Extension in place, featuring large windows, thick doors and exterior lights. It looks like a living room.

Heatwave Extension available to view at the Sheds Direct Showroom, Finglas.

Want to talk to someone about Heatwave Extensions? Call us during business hours at:

(01) 864 4247