Heat pump installs and replacements across Invercargill
Swap the old wood burner, the gas heater or a tired heat pump for a new heat pump that keeps the house warm through an Invercargill winter. Mahdi is a registered electrician, so the heat pump and the wiring behind it are one job, done by one team.
- Registered
- Electrician, E 102335
- Heat pumps
- New installs and replacements
- Google reviews
- 35, every one five stars
- Area
- Invercargill, Bluff and Otatara
“Mahdi is an excellent electrician. He's fast and efficient and really knows what he's doing.”
Out with the old
Out: Old wood burnerIn: a heat pump sized to the room
In the Invercargill airshed, wood burners put in before September 2005 can’t be used any more, and non-compliant ones from 2005 to 2010 must stop by 1 January 2030.
Open fires have been banned in the Invercargill airshed since 1 January 2017.
Unflued cabinet gas heaters tend to be the dearest way there is to heat a room.
A heat pump costs about a quarter as much to run as bar and column heaters for the same warmth.
A heat pump’s working life is about 15 years, so a unit put in around 2011 or earlier has had its run.
Invercargill averages 19 ground frosts in July. A heat pump on a timer has the room warm before you’re up.
A rental’s main living room needs a fixed heater that can heat it directly: open fires and unflued gas heaters don’t count.
What heats the room now?
Which room
Your home
When
- Job
- Pick what heats the room
- Room
- Pick the room
- Home
- Pick your home
- When
- Pick a time
Who you deal with
MahdiPower Surge Ltd, Rockdale, Invercargill
Invercargill Heat Pump Installers is Mahdi and the team at Power Surge Ltd, based in Rockdale. Mahdi is a registered electrician, E 102335, and has been in the electrical trade since 2020. He comes out, looks at the room, the wall and the switchboard, and quotes the job.
Heat pumps go in with Mahdi and our heat pump installer working together, so the unit, the pipe run and the new circuit are one booking with one team. Customers keep mentioning the same things in their reviews: he’s easy to talk to, on time and tidy, and happy to fit a job in on a Saturday.
About Mahdi and the team
- E 102335Registered electrician
- 35Five-star Google reviews
- 2020In the electrical trade since
- 24/7Call-outs, weekends included
Heat pumps in, old heating out
New heat pumps and replacements are most of what we do. When a unit just needs a service or a fix, we do that too, and tell you straight when it’s time for a new one.
Heat pump installation
High-wall, floor console, multi-room and ducted heat pumps, sized to the room and wired in by Mahdi.
Heat pump replacement
The old unit off the wall and a new one up, sized for how you use the room now.
Replacing a wood burner
Warmth at the press of a button in place of an older burner or an open fire, with no firewood to buy.
Heat pumps for rentals
Fixed heating for the main living room, sized to the room for the Healthy Homes heating standard.
Servicing and repairs
A clean and check before winter, faults found and fixed, and a straight answer when a unit is past saving.
What customers say about Mahdi
Power Surge Ltd has done an excellent job at our house. They went above and beyond to deliver the work on time and the quality is very high. Not only was he work well done, the communication and response time was great. Would definitely recommend 😃
A great job well done. Mahdi is professional but friendly, as well as honest and efficient. This is the third time he has done work for us and we will certainly call him again.
Great service, very professional and reliable. The job was done quickly and everything works perfectly. Highly recommend.
Invercargill winters, and the burner rules
Invercargill averages a ground frost on 19 days in July and more than 100 a year, and Southland runs colder than the rest of the country with less sunshine. The heater in your living room works for its keep.
Smoke from home chimneys is the major cause of winter air pollution in Invercargill, and the airshed rules follow from it. Open fires have been banned in the Invercargill airshed since 1 January 2017. A burner put in before September 2005 can’t be used any more, and non-compliant burners from 2005 to 2010 must stop by 1 January 2030.
A heat pump costs less to run than a wood burner, a gas heater or plug-in heaters. It warms the room at the press of a button, with no firewood to buy and no chimney to sweep.
Not sure when your burner went in? Send Mahdi a photo of it and the wall around it.
Send a photo of my burner- 19ground frosts in an average Invercargill July
- 2017open fires banned in the Invercargill airshed from 1 January
- 2030non-compliant burners from 2005 to 2010 must stop by 1 January
- 2034non-compliant burners from 2010 to 2014 must stop by 1 January
- 15years: the working life of a heat pump
Which heat pump suits the room
High-wall
One indoor unit high on an outside wall and one outdoor unit. The one most living rooms get.
Floor console
Sits low on the wall, under a window or where there’s no room up high.
Multi-room
One outdoor unit running indoor units in two or more rooms, so the bedrooms are warm too.
Ducted
Warm air through ducts to every room, from one system tucked out of sight.
Mahdi sizes it at your place: he’ll assess the room, its windows and how open it is to the rest of the house. A unit that’s too small for the room runs flat out on a frosty morning and still leaves you cold; one that’s too big costs more than it needs to.
Repair or replace?
A heat pump’s working life is about 15 years. When an older one starts to struggle, Mahdi looks at it, tells you straight whether a service or a repair will carry it, and quotes the replacement on the spot when it’s past saving.
Noisy, blowing cool on heat, throwing an error code or dripping? Send a photo of the indoor unit and its label, and say how old it is.
Great service, professional, friendly and he was able to get the job done really quickly with short notice. Really appreciated and I wouldn't hesitate to use this company again of refer to others. Thank you very much.
How a job runs
Send a photo, or call
Use the form with a photo of the wall and the old unit or heater, or call 0800 164 106.
Mahdi comes out and quotes
He looks at the room, where the outdoor unit can go and your switchboard’s capacity for the new circuit, then quotes the heat pump and the wiring together.
Install day
Mahdi and our heat pump installer take the old unit down if there is one, put the new indoor unit up, set the outdoor unit and run the pipes, and Mahdi wires it in from the switchboard.
Warm and handed over
We run it on heat, set the timer with you and show you the filter: a clean once a month through winter keeps it working well.
Very polite works well high standard neat job punctual
Mahdi did an excellent job. Friendly, fast, and efficient. Thanks so much. Highly recommended.
What sets the price
- The size of the room, its windows, and how open it is to the rest of the house
- The type: high-wall, floor console, multi-room or ducted
- Where the outdoor unit sits, and the length of the pipe run to it
- The new circuit from the switchboard, and whether the board has room for it
- What’s coming out: an old heat pump, or the old heater
- Access: the ceiling space, under the floor, a second storey
We used the services of Power Surge Ltd recently and we were very satisfied with their timeliness and professionalism. The electrician got the job done quick and his pricing was fair.
Heating and electrical jobs by Mahdi
Mahdi’s own work in homes and businesses: bathroom heating, warm lighting and the wiring behind them. Every heat pump gets the same care.
A bathroom heater-light and a heated towel rail: one of Mahdi’s heating jobs. 
A backlit bathroom mirror, with a heated towel rail on the wall opposite. 
LED downlights and a wall light through a hallway.
Where we put heat pumps in
Right across Invercargill, and out to Bluff and Otatara.
Just outside the city too: Myross Bush, Kennington, Wallacetown and West Plains. Tell us where you are on the form. All areas
Questions
Not covered here? Ring 0800 164 106, or add your question to the form.
How long does a heat pump last?
Its working life is about 15 years. If yours is getting on, is noisy, or no longer keeps the room warm on a frosty morning, send Mahdi a photo of the indoor unit and its label, and he’ll tell you whether a service will do or it’s time for a replacement.
Can I still use my wood burner in Invercargill?
Inside the Invercargill airshed, a burner put in before September 2005 can’t be used any more, and open fires have been banned since 2017. Non-compliant burners from 2005 to 2010 must stop by 1 January 2030. A heat pump takes over the heating with none of those dates to watch.
Do you do the electrical side too?
Yes. A heat pump has to be connected by a licensed electrician, and Mahdi is a registered electrician. He runs the new circuit from your switchboard and wires the unit in himself, so there’s no second trade to book.
What size heat pump do I need?
Mahdi works it out at your place: the room’s floor area and ceiling height, the windows and which way they face, and how open the room is to the hallway and kitchen. Send the room’s rough size with your quote request and he’ll measure it when he comes out.
Do you work outside Invercargill?
Yes, just outside it too: Bluff, Otatara, Myross Bush, Makarewa and Wallacetown. Pick your area on the form.
Do you put heat pumps in rentals?
Yes. A rental’s main living room needs fixed heating that can heat it directly, and a heat pump does that. We work with landlords and property managers, one property or several.
Get a heat pump quote
Say what heats the room now and which room needs the heat. A photo of the wall and the old unit or heater lets Mahdi see the job before he comes out.
Handy for Mahdi’s quote
- A photo of the wall where the heat pump will go
- The old heat pump or heater, and the label on an old unit
- Which room, and roughly how big it is
- Your suburb or town
After you send it, Mahdi rings or emails to go over the heating you have now and book a visit to measure up and quote. Rather ring? 0800 164 106.
Sent: thank you.
Mahdi has your heating details. He’ll ring or email to book a time to look at the room and quote.