A recent trend of home DIY installations have seen a lot of people trying to install their own metal roofing rather than pay the prohibitively high cost for a metal roofing contractor. Basically, these home improvement enthusiasts are looking to save on both ends: the reason they want the roofs they're building is because of their energy efficiency and long-term durability.

While the frugal thinking that informs these efforts is admirable, there are a lot of good reasons you should find some other way to diminish your metal roofing costs. While there are a few companies out there that make metal roofing shingles specifically designed for the amateur to install (from panels that pretty much clip together by hand to those requiring little more than the standard tool arsenal of screw gun, hammer, metal snips, caulk gun, and tape measure) these uniformly shaped shingles will only work on homes with a very regular roofing structure.

But your typical home doesn't have that. Odds are your home has a sidewall, a chimney, a dormer or a skylight somewhere up there, and the average homeowner trying to work around such structural irregularities without any panel-reshaping is almost bound to leave weak spots that make the internal structure of the roof vulnerable to water damage, possibly decreasing the lifespan of a roof which, properly installed, could last half a century without maintenance. The cost of installing a metal roof on your own could, in reality, be that you'll need to get the entire job redone by a professional. When even a simple mistake like leaving a mark on one of your metal panels with a lead pencil instead of duct tape can lead to massive corrosion and compromise the integrity of the roof, is it really a risk you want to take?

So, if you don't happen to live in a Toblerone- or matchbox-shaped residence, get on the phone to a metal roofing contractor and start haggling. The cost of installing a metal roof once you've laid hands on the requisite parts is not that high, as the labor required is so much less. The job should proceed relatively quickly, and if the contractor charges by the day, so much the better.

If not, you should get at least three metal roofing contractors to quote you for the job. Alternatively, call on your friends and family - you'd be surprised how well the concept of 'six degrees of separation' applies when it comes to finding anyone in the building, carpentry or plumbing industries. It's the way the average contractor gets the majority of his work, work he'll tend to want to do as well as possible if you're referred by a family member, as he'll know he's leaving an impression not just on one person, but on an entire network of potential customers.

The best tool for cutting and shaping metal roofing panels on-site is called a brake, and you need to make absolutely sure that your metal roofing contractor is using one, as without it you'll be left with poorly-cut panels and a job that stretches out far longer than it should. The hydraulic powered teeth of the brake cut panels perfectly without deforming their ends, leaving you with the neatest, most aesthetically appealing roof-shaping you could hope for.