Electrical, plumbing and security services
Servicing Wairarapa, Wellington, Palmerston North, Waikato and Auckland

Bringing your New Build and Renovation projects to life

For new builds, we manage the full electrical fit-out from start to finish. This includes complete wiring, switchboard installation and upgrades, LED lighting design and installation, emergency lighting, smoke alarms, and full compliance certification.
We also future-proof homes wherever possible, preparing systems for solar panels and EV chargers so you’re ready for what’s next. Solar installation is being added as part of our ongoing expansion.
For renovations, we upgrade existing systems to modern standards — replacing old fuse boards, updating outdated wiring, installing efficient lighting, and improving overall safety and energy performance. We also specialise in full rewiring for older homes, with every job completed and certified to current regulations.
Keeping electrical, plumbing, and security under one roof reduces handovers and keeps decision-making straightforward. Read more about our electrical, plumbing or security services to see how the approach fits your project.

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Complete home rewiring, security, electrical and plumbing work for new builds and renovations

Home electrical rewiring, lighting design and underfloor heating installation
Full electrical fit-outs for new build homes and projects
One team, multiple trades: electrical, plumbing and security sorted under one roof
Electrical, plumbing and security for renovations, working across Masterton, Wairarapa and beyond
New Builds & Renovations - Overview:
Home rewiring, lighting design and underfloor heating installation for electrical and plumbing on renovations, builds.
  • Complete home rewiring for new builds and renovations
  • Lighting design with supplied or client supplied fixtures installed
  • Underfloor heating installation with circuit checks and controls
  • Smart home electrical ewiring for future device and control upgrades
  • Home automation electrical wiring for lighting and security controls
  • Electrical fit outs: switchboards, wiring, and final light fitting
  • Plumbing and gas installations for water, drainage, and connections
  • Security installations scheduled alongside electrical and plumbing work
  • Electrical and plumbing inspection and testing before renovation work
  • Certificates of compliance and documentation supplied for sign off

Integrated electrical and plumbing for smoother builds

Successful builds rely on planning, clear responsibilities and a schedule that people follow. Wiring, switchboards, plumbing and gas installations can be scoped as one coordinated package, with trades booked in the right sequence.
For new builds, electrical work can include switchboards, complete home rewiring and final light fitting installation. Plumbing covers water, drainage and gas installations to suit plans and compliance requirements.
Each trade has its own foreman to keep day-to-day decisions organised, including:
  • Clear division of responsibilities
  • Fewer clashes between trades on site
  • A schedule that is easier to manage
Project management can be arranged if you want one provider to coordinate the trades, or MSL Group can work alongside your builder. Updates come through one point of contact, making progress easy to track.
See more about our approach on the About page.

Certified installations that meet regulations first time

Work is completed by registered electricians, plumbers and gasfitters. Accreditations include EWRB, PGDB and Ministry of Justice approvals, with New Zealand Security Association membership in progress. Testing is carried out, and certificates of compliance plus supporting documentation are provided where required.
For renovations, electrical and plumbing systems are checked before major changes begin. Old fuse boards can be identified for upgrade, and unsafe circuits may indicate the need for home rewiring. Common renovation work includes:
  • Emergency lighting and smoke alarms
  • Gas system installations or conversions
  • HRV and ventilation systems
  • Septic tank installations and repairs
This helps keep your project aligned with residential and workplace safety requirements while supporting council or insurer documentation when needed.
Find out more about our renovation process on the Plumbing or Electrical pages.
A new build or renovation is the best time to plan capacity for what comes next. If you are thinking about solar panels or EV charger installation, wiring can be set up so your home is ready for the next step.
Typical scope can include:
  • EV charger ready circuits
  • Smart home electrical rewiring
  • Home automation electrical wiring
  • Underfloor heating installation
  • LED lighting upgrades
Emergency lighting, smoke detectors and lighting design are also available. Lighting design focuses on how the room is used, where shadows fall and what fittings make sense for the layout, with hardware supplied or client-supplied fixtures installed.
Light commercial work for offices, shops and small sites is scoped to suit staff and customer use, with safety and practical access kept front of mind.

Future-proofed wiring for modern living

Transparent pricing and responsive project coordination

Pricing is set out in detailed, itemised quotes. Where possible, hardware pricing is shown up front and anything variable is explained early, so you can compare options properly. For each project:
  • One itemised quote
  • Hardware pricing where possible
  • Clear notes on what is included and what is not
If the schedule cannot be met, you are told straight away so you can make a call. After completion, 24/7 emergency support is available and remote troubleshooting can be used where an issue can be resolved without a visit.
The wider crew brings more than 20 years’ combined experience, with a 12-month workmanship guarantee for security installs and a three-month workmanship guarantee for electrical and plumbing work.
Plumbing and electrical installations for new builds and renovations are coordinated and certified, helping your project stay compliant and easier to manage. Planning starts with a discussion, so contact us to scope a build or renovation and keep progress steady.

Frequently Asked Questions for New Builds & Renovations

Signs like frequent tripped breakers, flickering lights, warm sockets or an old fuse board can indicate home rewiring is needed. The next step is inspection and testing, then a clear plan, pricing and the compliance paperwork that applies to the work.

Home rewiring can include replacement of outdated cabling, switchboard upgrades when needed and fitting modern sockets, switches and circuit protection. Testing and circuit labelling are carried out, with access points, timing and methods discussed before work starts.

Lighting design is available alongside installation. Each room is assessed for how it is used and what needs to work day to day. Options can include ambience, task lighting and energy efficiency, with placement planned to reduce glare and heavy shadows.

Dimming, sensors and smart controls can be added where they suit the plan.

Underfloor heating installation needs suitable circuit capacity, protection and thermostat controls. The switchboard can be checked for load capacity, wiring and controls are installed and the work is scheduled around flooring or renovation timing. Testing is completed and handover includes basic operating instructions.

Smart home electrical rewiring prepares your property for later smart devices, keeping wiring safe and tidy for future upgrades. Home automation electrical wiring goes further with dedicated cabling for items like automated lighting, blinds, security and networking.
New Builds & Renovations Summary:
What: Coordinated electrical, plumbing, gas and security installations for new builds and renovations, including home rewiring, lighting design, and underfloor heating installation.
Where: Services provided across Masterton, Wairarapa, Palmerston North and Wellington.
Who for: Homeowners and builders planning residential new builds or renovations, plus commercial sites needing coordinated electrical and plumbing work.