Burly - I know from reading your post this isn't your first rodeo. I think you were primarily wanting advice on a big demo job opportunity that has recently came in your direction. I have been in the Construction, Landscape and Property Management since 1992. I obtained my C12 landscape license in 1996, general contractors license in 2000, my restate license 2007. Even though I'm the owner since 92, I retained the original owner for several years, simply because I new nothing about building anything. I like to think I know something about building things now. We have specialized in outdoor construction, we do build structures. Jobs as small as a new rose garden, as large as a high school athletic field, single family residence, multi-family apartments, convenience store to regional mall. We are usually the first companies on the property of the "build team" and almost always the last company, as a property manager many years after the build out. I stress a build team concept, that is how things are done on most locations today. These are professional relationships and friendships developed with contractors and trade groups working together. Every job gives me pride of ownership, I stress to my people work on it and take care of it as if you live there. I say all of this as a real small job gave me the most return. A man called me one day and wanted to build a special garden as a 25 year anniversary present for his wife, a rose garden 25 rose bushes for 25 years. I put a lot into it, he gave me a decent budget to work with and I hired my first landscape designer, for a concept garden, based on two peoples life. He turned out to be a civil engineer, he took his wife on a two week vacation, returned to his wife's rose garden. He had told me I'm really not concerned as much about cost as "A one of a kind backyard, we can enjoy for the next 25 years. I spent a chunk of his money.
He being a civil engineer, could not figure out how in two weeks, short answer it was not, three months of planning went into that job. Every construction job Iv'e ever worked had a demo phase of some sort. The demo probably second to the planning phase in order of importance. Within four months of that "rose Garden" we were building a parking lot, that his firm designed. After that a high school athletic field, in construction you never know what that next small job will lead to. Spend as much time as possible on the planning of the demo, as the demo sets the pace for the entire project.
Some more advice, every construction job is based on square footage of the job. Try to put your best estimate to figuring out every task that you will be involved with. Assign a dollar cost to all of your expenses, covering labor, equipment, time, transportation, materiel and desired profit. Add all the task up, that's your cost and with profit included. I then times that by a error factor, usually 10 to 20%. For two reasons cost that you did not include or think of. Something always goes wrong, count on it and build it into the bid. I call that my unforeseeable "big rock" in my way. That big rock belongs to property owner, just because nobody new it was there and now you do. why should you pay to move it? Also put a "discovery clause" into the bid, giving you the ability to recover reasonable and unforeseen cost that are no fault of yours and originate on his property.
Another bit of advice, have you ever heard of RSMeans square foot models? This is the most known set of standards for estimating construction cost in the industry. Chances your competitors are utilizing this at their advantage. Both a tool and a industry set of standard cost estimators that are based on cost for each region of the country, by type of construction. Remember if I read this correct, the property owner called you, that figures into the entire equation and should give advantages over competition.
I'm going to go back to a warning on the hazardous waste, especially lead. Yes it is true, the leading cause of lead poisoning is from the paints used in buildings, homes and anything painted before 1978. Most of us are getting lead in our body from drinking water! Almost all of us have some presents of lead contamination today, even fourteen month old infants have had lead detected in their blood. There really is no safe level of led in our bodies, there is established minimum acceptable levels, any lead is bad! The reason for lead in our water, is almost all plumbing has some lead in it. The very word "P"lum"b"ing, is derived from a Latin word, with lead at the core for it's usage, (Pb in the elements chart). Lead has been used in all plumbing since man started moving water in volumes. The water was needed, the lead added to drinking water was not!
Getting the "lead out" of all things harming us is a fairly new event. A effort to remove most of the lead in gasoline started in 1973. Lead was banned from most types of paint 1978. THE "Clean Drinking Water Act" of 1986, addressed the safe allowable amount of lead in a municipal water supply. California's proposition 65 required a manufacturer to disclose the presence of substance known to be cancer causing carcinogens and/or harmful to biological reproductive cycles (1986). In 1995 lead was banned in the solder used in making food cans. Almost any type of metal has some amount of leads (scrapper remember that). Lead is added in most metal alloys: 1. Improves machine-ability 2. Reduces a alloys porosity 3. Increase an alloys resistance to corrosion. So is the lead out? NO, Is today's plumbing "lead free"? NO. Copper pipe and fittings have some lead in still. Solder and flux used in plumbing is still allowed .2% lead. Steel pipe and galvanized steel pipe still allowed up to 8% lead content. Brass fixtures, fittings and devices still allowed 2% lead. amendments to the 1986 CDWA are still be added (2114 lowered lead in plumbing to almost nothing). All plumbing devices for drinking water sold after 1992 have lowered lead content, 2015 will be the lowest level of lead in new product, but still there lead in it.
Bottom line most of us are getting lead into our body from just drink water in our house. Is there lead in pipes from a hundred year old building? YES and be careful handling it. Is it toxic waste? Can be, all depends on how it is handled. Top four sources of lead getting into your blood stream: 1. Paint produced before 1978 2. Inhaling of airborne dust generated from lead containing materials. 3. Ingestion of substance's in contact of contaminated lead soil 4. Drinking water. In 1900 the 50 largest us cities allow water to be carried in 100% lead pipe. Construction of water systems still allowed 100% lead pipe for other than drinking water up until 1961. Was very common as transition pipe from water supply source to building feed through, supply behind bath tub and shower enclosures. I hope this is your most profitable demo job yet, be safe working that old pipe. Selling construction waste as scrap is the right, responsible and best approach for all of us, attention to detail is needed too!
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