Mueller Services vs ScottsAir

Mueller Services



Customer Service

Compare Air Conditioning Rating


Mueller Services
  • Excellent customer service
  • Great prices
  • Volume discounts available
  • Quick response times
  • Deals and promotions available
  • Competitive pricing


Mueller Services
  • No weekend availability
  • No boiler heating installations
  • Strong (but not outstanding) online reviews
  • $150 on-site quote, taken off price if install proceeds
  • No weekend availability
  • Installation only - no repair


Of the top three air conditioning installation companies in Adelaide, ScottsAir is one of the largest in South Australia and was rated third overall, receiving a good Compare Air Conditioning of 4 out of 5. By comparison Mueller Services is rated the first best air conditioning installation company in Adelaide, scoring 4.5 out of 5.

There are different factors where Mueller Services come out on top including price and the range of services on offer, as ScottsAir’s team do not repair units, they only install. ScottsAir do, however, install high quality products with professional service and sound technical advice. Whilst relatively expensive when compared against the top five, ScottsAir’s prices are within the normal range of the wider market.

If you are looking for a full range of service from installation to repair, Mueller Services would be the best choice of the two. ScottsAir still have a lot to offer in terms of cost-effectiveness and are confident in their pricing.


Mueller Services


Free on-site quote

Volume discounts

Deals and promotions

Price Matching

Financing availability

Mueller Services and ScottsAir offer a competitive price range but are not the cheapest options out of the top five Adelaide installation companies. ScottsAir received a score of 3/5 for cost-effectiveness, which is the lowest score among the top 5. Mueller Services fared a little better, coming in equal second for cost-effectiveness with a score of 4 out of 5.

Muller Services are willing to price match if a competitor quote can truly reflect “like for like” and will also consider volume discounts where more than one unit is being sold. ScottsAir do not offer either of these options.

Known to list specials and promotions on the web site, usually in winter, Mueller Services sales staff also helpfully let customers know of current cash back promotions and deals on certain brands. These are also listed on their web site. ScottsAir occasionally have promos in the down season. Accessing these can ensure the customer gets good value for money.

In terms of initial outlay, ScottsAir charge $150 for a technician to perform an on-site quote. This fee will then be deducted from the final invoice if the customer chooses to proceed with them for installation. By comparison there is no initial outlay for Mueller Services in terms of a quote as they offer a free onsite service.

Both companies strive to meet their customer requirements within a reasonable budget when compared to the wider market.

Customer Service

Mueller Services


Clear quote

Weekend availability

Customer service rating by phone


Customer service rating by email


Response time to acknowledge request

6 - 24 hours
6 - 24 hours

Response time to provide quote

6 - 24 hours
6 - 24 hours

Online ratings / reviews


ScottsAir and Mueller Services both did well on customer service delivery, with ScottsAir having points deducted for a slightly delayed response. Overall ScottsAir had a fast response time. Their team came across as polite and confident, responding to questions competently and efficiently, thus expanding the customer’s knowledge base so they can make an informed decision.

Mueller Services are ranked highest in Adelaide for their customer service, with an impressive overall score of 9 out of 10, compared to ScottsAir’s 6.5 out of 10. Mueller Services are ranked highly in this respect because of their professionalism. Their staff was helpful and knowledgeable from the initial point of contact, making a great first impression.

In online reviews and forums, ScottsAir have received a number of 5/5 customer reviews on Google and have strong testimonials listed on the ScottsAir website. Mueller Services’ customer generated review scores averaged at 4 out of 5, putting ScottsAir ahead on this platform.

Neither company offer weekend hours but Mueller Services do offer a 24/7 emergency repair line to assist customers to get the optimum performance from their unit. Both present customers with a clear quote, service rural areas and offer financing. Unusually for the Adelaide region, ScottsAir offer installation but not repairs, which customers may have to source on their own.

A unique feature of ScottsAir is their ability to design and integrate an air conditioning system into a new home about to be built. This service feature could save customers money, as the insurance will be covered by the builder’s structural warranty. It may also eliminate the need for certain kinds of work and ensures the system is completed to Australian building standards.

In terms of warranty, Mueller Services offer an unusually long 10 years. ScottsAir offer 5 years’ manufacturer’s warranty and 5 years of installation warranty, which is average for the area.

Both teams were pleasant to deal with and knowledgeable, which helped customers trust in their abilities. ScottsAir’s design feature may put them ahead in terms of choice for new homebuilders, with another draw card being that they are a family company with an understanding of family needs.


Mueller Services



Commercial and residential

ARC Tick

Year established


Installation warranty


ScottsAir was established in 1966 as a family run business, and has now been around for over 45 years. Mueller Services have been around a shorter amount of time, being founded in 1999 and operating for 18 years.

ScottsAir’s 45+ years make them a very experienced air conditioning installation company, reassuring customers regarding their technical abilities. They employ fully qualified and professionally certified people with years of experience. Mueller Services’ 18 years also makes them strong in terms of expertise and they too have shown our review team the ability to clearly explain technical aspects of the installation process in layperson’s terms.

While both the ScottsAir and Mueller Services teams have excellent technical knowledge, ScottsAir’s services do not extend to repairs.

Each company cover commercial and residential units, will install in apartments and offer reverse cycle split systems, inverter split systems, multi-unit split systems, and ducted heating and cooling. Neither work with boiler systems.

ScottsAir and Mueller Services both have the knowledge to find the best solution to suit your needs. They have the skills to confidently explain the benefits of different products. As well as offering sound advice they also have a good selection of quality brands.

Mueller Services might be the best choice of the two if price is a high priority for you. However, if you are building a new home and would like to save money by installing your airconditioning system as it’s built, ScottsAir’s ability to design a system to match your plans is an excellent selling point.

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