Plumber Happy Valley & Southern Adelaide
Run by our family, for your family: Simms Plumbing & Air Conditioning is your 24/7 Happy Valley plumber.
- Lifetime labour warranty
- $50 off your first service
- Open 24/7
Plumbing and Air Conditioning Services Across Adelaide's Southern Suburbs
Cold showers, blocked drains and dead coolers never pick a good time, so we handle the lot:
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Blocked Drains
Rather than guessing at the cause, we run a CCTV camera through the pipe, clear it with high-pressure jetting and take $70 off every blocked drain job across southern Adelaide.
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Hot Water Systems
Most failed hot water units get replaced same day, because common gas and electric models travel on our van, and we install heat pump and continuous flow hot water systems.
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Emergency Plumber
It's our own southern Adelaide team, not a call centre, that answers 2am calls about burst pipes or overflowing toilets and sends an emergency plumber carrying parts for most repairs.
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Tap & Toilet Repairs
Running cisterns can waste thousands of litres a week, so our tap and toilet repairs swap worn washers, cartridges and flush valves across Adelaide's south, mostly on the first visit.
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Evaporative Cooling Service
Book a spring evaporative cooling service to replace worn pads, clean the tank and check the pump and belt, so Brivis and other coolers are ready for Adelaide's first heatwave.
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Air Conditioning Installation
Our licensed team calculates the cooling load before every air conditioning installation, then sizes a split, multi-head or ducted system to suit your home, with interest-free Humm finance on offer.
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Air Conditioning Repairs & Service
Whether your split system is blowing warm air, dripping indoors or smelling musty, our ARC-licensed technicians handle the air conditioning repairs, regas, servicing and mould cleaning on all major brands.
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Gas Fitting
From cooktops and ducted heaters to new gas lines and LPG conversions, every gas fitting job in the southern suburbs is done to AS/NZS 5601 and leak-tested before we leave.
Why Happy Valley Locals Choose Simms Plumbing & Air Conditioning
Four quick checks separate a good plumber from a gamble, and we pass each one:
Run by our family, for your family.
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Licensed and Fully Insured
Every job runs under SA trade licence 315246 and Builders Licence BLD341932, both searchable on the licence register, with ARC licence AU066279 for air conditioning work and public liability cover.
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Lifetime Labour Warranty
Should anything we install or repair ever fail through our workmanship, the lifetime labour warranty brings us back to put it right at no cost, as our service guarantee promises.
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Fixed Prices, Agreed Upfront
Your price is fixed and agreed before any work starts, covers materials, labour and GST, stays the same after hours, and the job itself is backed by our quality guarantee.
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Family-Run in Happy Valley
Behind the motto on our van, "Run by our family, for your family", sits a small Happy Valley team led by Daniel Simms, and our story shows how we work.
Plumbing and Cooling Problems in Flagstaff Hill and Morphett Vale Homes
Tree roots caused nearly two-thirds of SA Water's sewer main blockages in 2024-25, but roots aren't the only local problem:
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Tree Roots in Sewers
SA Water names Morphett Vale, Flagstaff Hill and Happy Valley among the worst suburbs for root intrusion, yet homeowners must maintain pipes inside their boundary, which we clear and reline.
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Ageing Pipes, Shifting Clay
Flagstaff Hill's first blocks were released in 1967, when earthenware and cast iron were common Adelaide pipe materials, prone to cracking as reactive clay opens up to a metre deep.
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Summer Heat and Cooling
With Adelaide averaging 16.9 days a year at 35°C or above in Bureau of Meteorology records, evaporative coolers and split systems need servicing before summer starts, not halfway through it.
Open 24 hours, 7 days
24/7 Emergency Plumber Across Southern Adelaide
A burst pipe can flood a room in minutes, so Simms Plumbing & Air Conditioning answers emergencies 24/7 across Happy Valley and southern Adelaide at the same rate day or night. We aim to be there within the hour.
Blocked drains, a dead hot water system and gas leaks all count as emergencies, and our emergency plumber fixes most on the first visit. If you smell gas, get everyone outside and ring the gas emergency line first.
Our Plumbing Process for Southern Adelaide Homes
Each job follows the same five steps, so you'll know the price, the timing and the warranty upfront:
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Call us 24/7
Ring 0420 104 118 or request a quote any hour, tell us what's happening, and we'll explain the next steps while we organise a visit.
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Same-day booking
We book a visit at a time that suits you, often the same day, and our on-time guarantee means you're not left waiting around all day.
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Fixed price first
Once we've inspected the problem, you get one fixed price in writing, and work only starts after you've agreed to it, so there's no clock ticking.
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Done to standard
Plumbing meets AS/NZS 3500 and gas work meets AS/NZS 5601, and we test everything, check for leaks and leave your home as we found it.
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Warranty and aftercare
Before we leave, you'll get simple care advice, and every repair or installation carries our lifetime labour warranty, so a workmanship fault never costs you a cent.
Happy Valley Plumber Reviews on Google
How do you earn a 5.0 Google rating? Turn up, explain the job and clean up afterwards.
- Google review
“Thoroughly impressed with Daniel. From the moment he came to give a quote to the moment he walked out the door with the completed job he was professional, curteous, and considerate. He went above and beyond to listen to my needs and …”
Angela Niejalke
August 2026 - Google review
“Daniel came out today to unblock a drain for me. He was following up a request that I had only phoned him about yesterday. He arrived promptly and after introducing himself, he clearly communicated to me what the job would entail. As the …”
Janine Brown
August 2026 - Google review
“Very happy with the plumbing service. He cleared the blocked pipe caused by tree roots and cleaned everything properly. He also fixed and added some parts to the inspection points. …”
Geetha Harshani
August 2026 - Google review
“Very pleased with the service we received from Daniel. We needed a new hot water service in Happy Valley and it was arranged with minimum fuss. …”
Andrew Waldie
June 2026 - Google review
“Daniel came and changed our shower taps over for a mixer tap. Great price and thorough work. Also added a pressure reduction valve for us. Highly recommend”
Shane Picken
May 2026 - Google review
“Brilliant service. Searched for evaporative aircon repairs in Happy Valley as ours died on one of the hottest days of summer (43°) before a long weekend. Daniel came out and diagnosed it on a Sunday. …”
Kingsley Smith
January 2026 - Google review
“I had an excellent experience with Simms Plumbing. I contacted Daniel regarding a blocked drain, and he was able to fit me in on the same day. He not only fixed the immediate issue but also conducted an inspection to check for potential …”
Manoj Meemanage
January 2026 - Google review
“I am at Richmond; contacted Daniel to install air con through hi pages which he did within a week. Very informative and professional. Did other extra jobs for us too; appreciate it. …”
prity gurung
January 2026 - Customer testimonial
“Daniel did a great job replacing the water tank pump and outlet. It looks top quality. Daniel was respectful, professional and patient. He showed up when he said he would and communicated with me throughout the job.”
Julie Connell
- Customer testimonial
“I use Simms plumbing gas & Air con as my go to company when my clients are after a reliable plumber. Being a specialist in all 3 major industries makes life for me a lot easier.”
Matt Sheehan
- Customer testimonial
“Simms is very reasonably priced, does a great job with the install, and won't give you the bum steer on what you need. Daniel was fantastic at communicating everything I needed, and also giving me the option of different fittings so I could make an informed decision.”
Scott Willis
- Customer testimonial
“I use Simms plumbing gas & Air con as my go to company when my clients are after a reliable plumber. Being a specialist in all 3 major industries makes life for me a lot easier.”
Matt Sheehan
Speak to the family today
for same-day service
One call and we'll talk you through your options, with same-day service wherever we can manage it and the same rate after hours, 24/7.
Plumbing and Air Conditioning Areas We Service Across Southern Adelaide
From our family's base in Happy Valley, Simms Plumbing & Air Conditioning covers southern Adelaide, including Woodcroft, Aberfoyle Park, Flagstaff Hill, Reynella East, Morphett Vale, Hallett Cove, O'Halloran Hill and the surrounding suburbs, with same-day service wherever we can manage it.
Run by our family, for your family.
Book a Happy Valley Plumber Today
Leaks and failing coolers only get worse. Call Simms Plumbing & Air Conditioning, rated 5.0 by locals on Google, on 0420 104 118 for fixed-price 24/7 help with no after-hours premium, $50 off your first service and a lifetime labour warranty.
Recent Plumbing and Cooling Jobs in Adelaide Homes
It hit 43° the day one Happy Valley cooler died, and that job is one of three from recent Google reviews:
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Happy Valley Happy Valley hot water. A household needed a new hot water service, and Daniel had it arranged "with minimum fuss" (from Andrew Waldie's Google review).
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Happy Valley Happy Valley cooler. An evaporative cooler "died on one of the hottest days of summer", and Daniel diagnosed it on a Sunday (from Kingsley Smith's Google review).
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Richmond Richmond air conditioning. Daniel finished the air con installation within a week and was "very informative and professional" (from prity gurung's Google review).
Frequently Asked Questions
How much does a plumber cost in Happy Valley?
Every Happy Valley job is quoted at one fixed, all-inclusive price before we start rather than by the hour, so the figure you agree to is the figure you pay.
Do after-hours or weekend call-outs cost more?
No, the rate stays the same around the clock, so an evening, weekend or public holiday call-out across southern Adelaide costs no more than the same job on a weekday morning.
How can I check a plumber is licensed in South Australia?
Look the plumber up on the Consumer and Business Services licence register, where you'll find our SA trade licence 315246 and Builders Licence BLD341932, along with every licensed plumber and gasfitter.
Do you handle both plumbing and air conditioning?
Yes, Simms Plumbing & Air Conditioning handles both plumbing and air conditioning, holding ARC licence AU066279 for refrigerant work, so one air conditioning plumber can sort your blocked drain and your split system.
Which southern Adelaide suburbs do you cover?
We're based in Happy Valley and cover southern Adelaide from Hallett Cove on the coast to Flagstaff Hill and Aberfoyle Park, taking in Morphett Vale, Woodcroft, Reynella East and O'Halloran Hill too.
Do you offer discounts or payment plans?
New customers get $50 off their first service, blocked drains come with $70 off, pensioners and veterans receive ongoing discounts, and Humm offers interest-free payments on bigger jobs like hot water replacements.
Do you repair rainwater tank pumps and fit whole-house filters?
Rainwater tank pumps and whole-house filters are both part of our work, whether it's a pressure-switch fault on a tank-fed block near Hallett Cove or chlorine taste in a Woodcroft home.
When should I book my evaporative cooler service?
Spring is ideal, because a cooler that's sat idle all winter needs its yearly service before summer, and a standard service is a fixed price, with any extra pads or parts quoted first.
Can I book a non-urgent job after hours?
Evening and weekend bookings are welcome, since we take calls 24/7 and charge the same rate as a weekday job, so a dripping tap or running toilet can wait until you're home.
Will you leave my home clean and tidy?
Absolutely, a clean and professional tradesman is part of our service guarantee, so we'll tidy up once the work's finished and hand your home back just the way it was when we arrived.
Are you genuinely a family business?
Very much so: Daniel and his family own and run Simms Plumbing & Air Conditioning from Happy Valley, and the small local business they've built holds a 5.0 rating on Google.
How soon can you get to me in Happy Valley?
Same-day plumbing and air conditioning visits are the goal across Happy Valley and southern Adelaide, and for genuine emergencies, which we answer 24/7, we aim to be at your door within the hour.
Will you explain the work before you start?
Always, with clear communication from start to finish, so you'll know what's being done and why at each step, and the fixed price is agreed with you before any work starts.
Who runs the business, and what's their background?
Director Daniel Simms runs it, with 25 years' experience built on a four-year apprenticeship started at 17, two more years at TAFE to become a Master Plumber, and extra air conditioning study.
What promise do you make on every job?
"If it's not good enough for my home, it's not good enough for yours" is Daniel's promise, so every home we work in gets the workmanship and honest advice he'd expect in his own.
Do you support the local community?
Simms Plumbing & Air Conditioning supports the local community through sporting sponsorships and events like Auskick, and Daniel, an Adelaide local and proud small business owner, has mentored many young apprentices over his career.