Bigger providers like BT/TT/PN usually wavier the install charge.
Though read the small print. The waiver may only be available on long contracts (18/24 month) or might be considered subsidised by the monthly payments so you'll see some of the charge if you leave before a certain time (like when the free routers were only free if you stayed 24 months, so you ended up liable to pay half if you left after 12 months - there was blood in some forums when people cottoned on to the fact they'd agreed to that).
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Current ISP: Andrews & Arnold (AAISP) via FTTC at ~40Mbit down (has occasionally dropped to ~36) & ~10Mbit up, joined July 2011.
Previous setup: Be Pro with UploadPlus (ADSL2+, AnnexM), 12ish Mbit down, 1.6 up, happy customer for ~2.5 years.