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GP Friel Ltd. are the market leader in delivering complex Underground Infrastructure in the Wellington region.

Our objective is to safely deliver on our promises and produce a high quality, resilient product of which we can be proud.

Our core business is in installing Water, Wastewater & Stormwater networks by trenched and trenchless solutions. We are approved to work on the Wellington Water network. We also offer ducting and chamber installation for other underground infrastructure particularly where it is packaged with one or more of the three waters.


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Since construction started on Hawkestone Street, renewing wastewater and stormwater pipes, we’ve had some extra-interested spectators keeping a close eye on the project. 

Our team delivering the Taranaki St Rising Main alongside GHD and on behalf of Wellington Water and Wellington City Council have hit a major milestone with the completion of the first two drives using Guided Auger Bore technology.

Our project for Wellington Water installing a new rising main on Taranaki St on behalf of Wellington City Council is seeing a lot of interest currently.

Prioritised GI Ridermain Renewals

Upgrade and replace approximately 1665km of leaking galvanised iron rider mains across six Lower Hutt and one Wellington street.

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357A Karori Rd renewals

Using trenchless methods to successfully renew wastewater and stormwater mains working through private properties. 

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Pitt St wastewater renewal

Trenchless techniques to successfully complete this job, reducing disruption, risks associated with excavation and the amount of waste generated.

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G.P. Friel Ltd has been operating in the greater Wellington region since 1999 and is a well established firm in the installation of underground infrastructure.

We are a privately owned, family business that has worked hard to build strong, long term relationships with our clients based on mutual trust, honesty and our ability to deliver quality projects on time and to budget. We specialize in using innovative ideas, client partnering and trenchless techniques. We are experienced in working in a variety of environments, including confined and deep excavation works, high voltage sub-stations, state highways and the unique Wellington street environment. Our projects include sewer, stormwater and water renewal and maintenance for local government, stormwater upgrades for roading companies, drainage work for commercial construction firms and providing connections for new properties.

Our clients rely on our knowledge of the relevant codes and regulations required to carry out infrastructure work. We value and invest in our people and are proud that our success is based on their skills, determination and hard work.

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phone 04 473 5830


map Landfill Rd, Wellington