• 73 State Highway 27, Tirau 3410
  • Mon-Fri 08:00 AM - 05:00 PM
  • South Waikato & Surrounding Districts
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Local Electricians & Registered Inspectors

Reliable residential electrical services, EWOFs, and compliance checks across Tirau, Putaruru, and the South Waikato.

Our Services
Contact Us

Local Electricians & Registered Inspectors

Reliable residential electrical services, EWOFs, and compliance checks across Tirau, Putaruru, and the South Waikato.

Our Services
Contact Us

Local Residential & Maintenance

Reliable home electrical repairs, installations, and fault finding across Tirau, Putaruru and beyond

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Registered EWOF & Compliance Inspections

Certified Electrical Warrants of Fitness, Certificates of Verification (CoV), and pre-purchase house checks.

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Commercial & Industrial Projects

Specialist industrial services, power analysis, thermography, and automation solutions.

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Electrician John Curphey from Dorenal Electrical

Discipline, Precision & Decades of Expertise

Dorenal Electrical is led by John Curphey, a Registered Electrical Inspector with a career defined by technical precision and reliability.

Following a distinguished career in the military, John transitioned his focus to electrical compliance, bringing a unique level of discipline and attention to detail to every project. With decades of experience across New Zealand and abroad, he has built a reputation for prioritising safety and efficiency in complex environments. At Dorenal, the mission is simple: providing specialist expertise with the integrity and "zeal" you’d expect from a veteran professional.

  • Certified Inspection Authority – Registered expertise for CoV, EWOF, and technical sign-offs.
  • Transparent Project Estimates – Detailed, obligation-free assessments for any scale of work.
  • A Commitment to Integrity – We genuinely care about the safety and longevity of your infrastructure.

Serving the South Waikato from Our Tirau & Putaruru Workshops

To better serve our local communities, Dorenal Electrical now operates out of two physical regional hubs. With our main base at 73 State Highway 27, Tīrau, and our newly opened second workshop at 115d Princes Street, Putaruru, we are perfectly positioned to provide rapid-response residential electrical repairs, rural farm automation, and certified statutory inspections across the greater South Waikato.

Our Regional Hubs

  • Tīrau Head Office:
    73 State Highway 27, Tirau 3410
  • Putaruru Workshop:
    115d Princes Street, Putaruru 3411
Supporting veteran charities

Proudly supporting veteran charities

Certified Compliance You Can Trust

From CoV and EWOF to advanced Power Quality Analysis, we provide the registered expertise needed to keep your projects and properties safe.

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Our Services

Registered Inspection & Comprehensive Electrical Services

From everyday home electrical repairs to certified compliance inspections, Dorenal Electrical delivers a higher standard of safety. With local workshops now open in both Tirau and Putaruru, we provide prompt residential service, switchboard upgrades, and registered EWOF or CoV certifications across the South Waikato. Whether you need a kitchen rewired or a critical safety audit, we have the advanced expertise to get the job done right.

Residential Electrical & Repairs

Reliable home electrical wiring, lighting installations, hot water cylinder repairs, and general fault finding. Proudly serving home owners and landlords across Tirau, Putaruru and beyond.

Switchboard Upgrades & Mains

Modernise your home’s electrical system with safe RCD switchboard upgrades, mains capacity increases, and comprehensive home safety audits.

Pre-Purchase House Inspections

Comprehensive electrical condition reports and safety checks before you buy or sell a home in the South Waikato region.

Electrical Warrants of Fitness (EWOF)

Certified EWOF testing and compliance certifications for caravans, motorhomes, and transportable structures.

Certificates of Verification (CoV)

Registered Inspector CoV compliance checks for rental properties, insurance policies, and specialised periodic-verification for caravan parks.

Registered Electrical Inspector

Independent analysis, official compliance documentation, and certified records of inspection for complex or disputed electrical installations.

Underground Cable Location

Accurate underground tracing, depth checking, and mapping of power cables for site safety, rural properties, and excavation planning.

Thermal Imaging & Power Analysis

Non-invasive infrared heat-mapping to meet strict insurance standards, paired with precision harmonic recording and power quality analysis.

Industrial Automation & Projects

Tailored automation, machinery wiring, and system integration built strictly to commercial engineering specifications.

Trusted Across the South Waikato

John at Dorenal electrical is awesome! Our hot water stopped working and was told by another company it was the hot water cylinder. He came out and found it to be the power box. He really knows his stuff and such a nice guy, Can’t recommend enough! Thank you John.
Brendon Ash
Great guys to install a heatpump. Reliable efficient and good value for money. Thank you
Nicki de Reus
John at Dorenal has been doing my electrical work for the past few years and has been a real asset for my business. He's always on call whenever you need him 24/7, does a professional job and is fairly priced. John will always do his upmost to insure the job is done (and stay to whatever hour) and you are happy every time. I highly recommend Dorenal electrical I have been extremely impressed.
Bas Nelis
Awesome service from start to finish. The work was completed to a very high standard, and it was clear he really knows his stuff. His level of expertise, attention to detail, and professionalism gave me full confidence in the job being done properly. He was easy to deal with, reliable, and took pride in his work. Awesome dude and I would happily recommend him to anyone needing electrical work done.
Daniel Dennis
Friendly team, and excellent workmanship. Everything was completed on time and to a high standard. Highly recommended!
Sam Scorringe
Highly responsive and friendly. Highly recommended.
Raymond Greenfield
Absolutely fantastic to deal with. Highly recommended. Thank you so much John!
Lian Buckett
Great service and fast.
Arahia Tuhua
Amazing Service by John & his team. Goes above & beyond, will show up at times others wouldn’t & stay to try & find all possible ways to get you back in business. Couldn’t recommend Dorenal Electrical more.
Stacey McMillan
Great service John in fixing my stove, many thanks.
Marilyn Cairns
What a great service and very knowledgeable, I would highly recommend using this company.
Peter McKee
Amazing service!! Called John with a hot water tank issue and he arranged Josh to come over first thing the next day. Josh arrived on time and was absolutely awesome. Explained everything well and got the job done. Friendly, fast and reliable service. Thank you so much :0). I highly recommend these guys if you need any electrical work done.
Annie Parker
John helped me out greatly. Awesome guy, knows what he's doing. Super efficient. Would definitely use him again 5/5
Sean Collis
John is fantastic! We had a mishap with one of the solar panels on the top of our campervan . He was home and didn't hesitate to help us out. Disconnected the wires and panel, silicone around the holes for us to be on our way to Kati Kati. Thank you so much John, you're a legend!
Mary Shaw

Join Our Team

Dorenal Electrical is always looking for skilled professionals who take pride in their craft. We offer a high-standard working environment with a focus on industrial and rural excellence. If you are a qualified electrician looking for a role that offers variety, technical challenge, and a reputation for uncompromising quality, we want to hear from you.

Give Us A Call

or send your CV to: john@dorenalelectrical.co.nz

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