Based in Hamilton and servicing Waikato, the Bay of Plenty and the Coromandel

Experienced insulation installers working across Waikato and the Bay of Plenty

A properly insulated house is less likely to suffer from condensation, damp and mould that can cause health issues and will be generally more comfortable to live in year-round so installing the right insulation is vital. Insultech Insulation has been making homes in Waikato and the Bay of Plenty warmer and drier for more than 30 years. We have a team of experienced insulation installers who specialise in retrofitting insulation into homes and rental properties, and commercial buildings. 

We retrofit install:

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Wall insulation - modern blow in insulation that fills the void in the wall space completely

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Ceiling insulation - blow in insulation to cover your roof space including around joists and light fittings

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Underfloor insulation - polyester insulation blankets which fit tightly underneath your floor

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Acoustic insulation - our wall insulation products also offer soundproofing benefits

We also install New Build insulation and can work with your builder or architect. For ceiling and wall insulation we use blow in insulation which gives us greater control over densities and thickness of the insulation cover.

Get in touch to arrange a consultation and a free insulation quote. We work with clients in Hamilton, Tauranga, across the wider Waikato and Bay of Plenty regions, north to Coromandel and south to Taupo.


Fill out the form below and we will contact you as soon as we can to discuss your requirements.

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Meet Leigh Coughlan

Leigh is the owner/operator of Insultech Insulation. Leigh and his team work on insulation projects across Waikato, Coromandel and the Bay of Plenty. 

If you have any questions about how we can help to insulate your home, give us a call. 

We offer site visits (if applicable), free quotes, personalised service, and great advice.

Why Choose Insultech Insulation

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Long lasting durability

Our products are all chosen for their durability and quality and we offer a 50-year guarantee on all products.

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Excellent service

Our customer service is top-notch from initial assessments to final installation.

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Quick installations

Our efficient team can complete most installations in a single day with minimal disruption.


We choose affordable products and good insulation will also save you money in the long term.

Our insulation installation process

Our retrofitting process begins with a free home assessment to see whether your home has any insulation already and what condition it is in. Then we'll recommend some options for you.

If we are installing blow in insulation into your walls, then we'll begin by preparing the walls. This involves making small holes through which the insulation will be installed. Depending on your home and whether you are also carrying out renovations, we can install through interior or exterior walls. Often exterior walls are easier to use.

Once the insulation has been installed, we'll seal the holes with a special compound to ensure your home is watertight. Then we'll finish and paint them, so you'll never know we were there - except that you'll have a nicer living space!

Underfloor insulation is installed in blanket form as this is more efficient. Our team will prepare the underfloor space and then fit the blanket to the underside of the floor ensuring it fits tightly.

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