Good way to get immediate leads for energy audits?

Ok so I'm doing tons of direct mail campaigns for this company (they do energy audits for insulation installations and basementwaterproofing) and have been loving it so far. I'm getting fairly decent returns in leads and now the owner is expanding his business.

I've been trying to look however at things that cost little to none, that may be more direct, and perhaps just as effective. Well I honestly just love talking to people and would love to do it. I just don't wanna waste time if you guys don't like the idea.

The idea is this. I use zillow to find lists of recently sold homes in towns surrounding my area. Or even further away as I don't really mind driving a bit. I was able to find 300 homes just in my town all new homeowners.

I notice people refering to these types as "best buyers" since they just bought a home, and apparently a good place to market to. Is this true?

What I want to do is this.

We do energy audits and basement waterproofing. I'm making a very high quality but personal dvd for both. A high quality/personal brochure for both, then want to hand deliver them to these houses or even knock on the door and say something like "hey, we just sold an energy audit system to your neighbor down the road," or "I was just in the area and noticed this house was recently purchased, noticed the home was over x years old (old homes usually need energy audits more than new homes obviously) and offer them a dvd and brochure.

I can say "I don't mean to impose on your time but would appreciate if you take the time to watch our dvd which explains how you can save money by getting an energy audit done". As we sell systems that reduce home energy costs. The thing is I'm not sure if giving them both dvds (for waterproofing too) would be smart. I'm thinking since energy audits are more in demand, we give them the energy audit dvd, then once we get into the house we can also inspect for mold and if they just so happen to have a leak THEN we can offer our waterproofing services.

But my main question is does a simple system like this work? Everything will be in tip top form, the website, business cards, dvds, brochures. I want to create urgency in the dvds but come off friendly and trustworthy.

Would a personalized canvassing approach like this be effective? Knocking on peoples doors and trying to advertise our business with energy audit dvds? And note we are not actually knocking on doors trying to sell the audits. We are just handing them material and leaving as fast as possible in order to not disturb people or rub them the wrong way. Just hand deliver things to look more professional maybe. Then like I said maybe we can hold off on pushing out waterproofing services till we actually get in clients houses and are able to identify mold and what not?

Any feedback on this approach I'd appreciate. Just looking for new ways to generate leads and have not touched upon new home buyers yet. Conceptually it *seems like a great idea to me. But I really don't know.