Built in the 1970s, the 21 and 23-storey Aston University blocks had been accommodation for generations of students living on campus.
Billy Young, from Demolition Ltd, said it was a complex operation because of the site and need to divert services.
The demolition is part of a ??300m regeneration of the campus. Students were able to watch the event.
He said: "The logistics of working on a live campus, live services - there were a lot of services that had to be diverted in and around the site before the implosion could take place.
"We also had complications of a Victorian water main and gas mains and adjacent footpath that had to monitored on the day in case of any vibration damage."
The Aston Student Village and new research centres will be completed by 2014.
The first phase of the ??215m village project was finished last year which provided more than 1,300  bedrooms for students.
The next stage of the scheme will provide another 1,050 rooms by next yea and will start now Dalton and Lawrence Towers have been brought down.

The Ivorian government has approved a near €6 million euros (£5.1m) budget for the team's campaign in Gabon.
It is an increase of €600,000 euros (£507,000) from the last finals in Equatorial Guinea two years ago.
Ivory Coast kick off their tournament against Togo on 16 January, before facing DR Congo and Morocco in the group stage.
The two-time champions opened a training camp in Abu Dhabi, United Arab Emirates, on Monday where they will face Sweden in a friendly on 8 January and  will complete their warm-up with a game against Uganda, another Nations Cup-bound side, three days later.
The Confederation of African Football has revealed the winners of this year's Nations Cup will collect $4m (£3.26m) in prize money, which is a 64% increase from a previous $1.5m (£1.2m).
Kicking off on 14 January, the tournament ends with the final on 5 February.

The star will be honoured for his contribution to music, as well as his acting and humanitarian work.
His catalogue includes hits such as Every Breath You Take, Fields of Gold and Don't Stand So Close To Me.
"Sting is an icon in the truest sense of the word," said Brandon Bakshi of the BMI, a music rights organisation.
"His musical catalogue has had an enormous impact on music lovers from around the globe across multiple generations."
When the former Police frontman won the outstanding contribution award at the Brit Awards in 2002, he said: "I've had a very, very long career in music.
"If I have gleaned any wisdom, it's encapsulated in five words: 'Music is its own reward.'"
He has also won 16 Grammys and been inducted to the Rock and Roll Hall of Fame. He is due to release a new album, 57th & 9th, in November.
The BMI - whose full name is Broadcast Music, Inc - keeps track of the songs played on radio and television and collects royalties on behalf of writers and publishers.
Now in their 65th year, the BMI London Awards honour the writers and publishers of the most-performed British pop songs during the past 12 months.
Last year, the US version of the ceremony saw Taylor Swift win a Taylor Swift Award - created in the star's name to recognise her domination of the airwaves in 2015.
Swift told the audience: "If they had chosen someone else to give the Taylor Swift Award to, I'd be kind of bummed about it."
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Davis, 20, has made three Championship appearances this season, with his 7-146 against Glamorgan the best 2016 figures by a Derbyshire bowler.
Hemmings, also 20, made his first-class debut against Worcestershire in June.
"They will benefit greatly from another winter working with the first team," head coach John Sadler said.
Two university tower blocks have been demolished in a controlled explosion in central Birmingham.
[NEXT_CONCEPT]
Defending champions Ivory Coast have been given extra financial support for the 2017 Africa Cup of Nations finals.
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Sting is to join the likes of Ray Davies, Van Morrison and Sir Tim Rice when he becomes one of the recipients of the BMI Icon award next month.
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Derbyshire pace bowler Will Davis and all-rounder Rob Hemmings have signed two-year contracts, keeping them with the county until 2018.