Nick from Illusion was pretty good to deal with. Often he was not available when I called, but he would call back, usually quite soon afterward. Email enquiries were also fairly promptly responded to, however there was one email enquiry that went unanswered.
I had a set of double security doors, a single security door, a set of double sliding flyscreen doors and a large retractable flyscreen installed. Other than the retractable screen being slightly too tall for the opening, and requiring to be cut down at the factory and brought back at a later date for installation, everything was installed in good time, and the two guys doing the job were friendly, well-mannered and punctual. The area was suitably cleaned up on both days after the work was complete.
The quality of the doors seems pretty good, and they look great. I'm happy with the end product, however a couple of the security doors were installed perhaps a tiny bit too close to the door stop on the hinge side, resulting in a tight, squeaky closing action, which I have since rectified myself.
I would recommend Illusion Flyscreens and Security Doors to others.

Approximate cost: $4500

Ezy Air have a great website, offering a lot of good information as well as a heat-load calculator, which, while not as exhaustive in its information-gathering as some, is user-friendly and gives you an idea of the loads for your room (which is great when another company quotes a much bigger and dearer (not to mention less efficient) unit than you require).
Ho at Ezy Air was great to deal with and very knowledgeable of his products and services. I was pretty pedantic and studious when researching what I'd get for my new house. Energy efficiency and quietness are a big deal for me, but Ho opened me up to other considerations also worth looking at when comparing systems.
In the end I had four split systems supplied and installed by Ezy Air, with an additional split installed but supplied from elsewhere. Ezy Air was good enough to send out seven guys so that the job could be conveniently completed in one day. Andy, Chris, JP, Caleb, Josh, Luke and Elliot were all punctual and well-mannered. They worked consistently throughout the hot day to get the job done and clean up afterward. A couple of them went through the features and operation of the units with me at the end. Units, pipes and conduits were installed neatly and close enough to level/plumb wherever they were installed in a visible location.
There were a few dirty smudges left on the walls around four of the five indoor units, and a little bit of rubble and dust were left around one of the outdoor units (though I haven't checked around the units that were installed on the garage roof), but these are minor things easily dealt with.
The only really disappointing thing for me was that some ceiling insulation batts had been pulled out and not properly replaced, which even though it was a small amount it's a major thing from my understanding of the importance of sealing the building's insulative envelope (leaking bucket analogy). For me, fixing it was no issue, as I've been doing stuff up in the roof anyway, including re-arranging some batts that were ineffectively installed by the builder in the first place. But for the many customers who would never go crawling around in their roof space, it would be an unnecessary hole in their home's insulation that might never be filled or even known about in the first place. One would expect air con guys to appreciate better than most the importance of effective insulation. For the little time and effort required to put the batts back in place I'll assume it was something that they would normally take care of, but forgot to do this time.
Approximate price was $12,000 (doesn't include the cost of the split system purchased separately).

I had Markwood Concreting pour a coloured path along the rear and one side of my house, with a small courtyard at the corner where the paths met. I also had them do in exposed aggregate the front driveway from crossover to garage, with an extra car-park space across the front of the house.

The quoted price was not the cheapest I received, but I chose to go with them because during his quotation meeting, Joe seemed a little more considerate of certain site attributes than others who quoted, and made appropriate suggestions for me to consider (for example, mine is a sloping block, so he suggested I change the finished height and/or width of one of the paths from what I had drawn up in order to reduce the amount of earthwork I'd have to get done for my landscaping later down the track. He also shared his experienced opinion of how the appearance of certain shades of exposed aggregate concrete could affect the look of the property under certain circumstances).

The quality of the work is good (only one random hairline crack in the path area has shown up within the two months since the pour), and seems to be in accordance with accepted standards (I don't know them well, but a crushed rock base, steel mesh, foam lagging around pipes, and control joints were all utilized, and other contractors were brought in after the concrete was cured and finished to apply a sealer).

All the guys doing the work at all stages were diligent workers, knew what they were doing, and were polite (although I probably wouldn't describe a couple of the younger guys as 'gentlemen,' at least not in my company; I am a tradesman myself, however, so I'd like to assume that they would adjust their tone according to their perceptions of each client).

In all, I’m very happy with Markwood’s work (and would certainly recommend them any day of the week over the Monash City Council’s contractors who “fixed up” a broken crossover panel shortly afterward).

I moved twice with help from iMover within about a month (Feb and March 2016), due to a new house issue and my rental lease running out.
Both pairs of guys did a good job of loading and unloading my possessions (for a family of two adults and two young children, plus two extra beds and other items for a guest room).
The first move was from a single storey house to a self-storage unit. Mark & Ankit (upon request) wrapped some of the items in cling film to protect them and keep parts together, and kindly allowed me to use their hand tools to disassemble bed frames, as my own tools were understandably not easily found while moving house.
They did a very good job of stacking the items in the storage unit, to make the most of the limited space available.
With some assistance from myself, Rocky & Rob moved my stuff from the storage unit into my new two-storey house. A few heavy and bulky items had to go upstairs via a stained timber staircase with a kite-winder U-turn halfway up, which we managed to negotiate without causing any damage.

iMover management were easy to contact and pleasant to deal with.
The guys doing the grunt work were all well-mannered and polite (no bad language, which some people understandably aren't fussed about, but I personally don't care for it), with a good attitude toward the job (no grumbling or complaining, unlike some removalists I've used in the past). Yes, compared to some of the other removalists I've used, they could have been a little bit faster, but on the other hand they weren't time-wasting either, and the work they do is hard work and it's important that they look after themselves and the stuff they're moving. Also unlike some removalists I've used previously, no-one scoffed as soon as they saw some of my flat-pack furniture (e.g. Ikea shelf units) and said, "Duh, this stuff can fall apart just getting it on the trolley!" Importantly, to my knowledge, nothing was dropped, damaged or knocked against a wall, etc., especially considering the second move with the heavy and bulky items going upstairs.
Obviously I was happy with Mark & Ankit's work on the first move, or I wouldn't have gotten iMover to do the second move for me, which I was also suitably pleased with. Each occasion cost me around $450.

Approximate cost: $450