The hot tub area will be covered by a conservatory-type glass roof. This roof is being engineered and fabricated off-site and will be delivered and erected by our local crafts. Last week I sent out an email to all the companies from which we had received quotes for the glass roof, informing them that we had selected the company with whom we were going to work and thanking the others for their participation. Since then, we have received (not unexpectedly) requests for the factors what went into our decision. The following is the email I have sent to those requesting that feedback. As detailed in the note, this was not an easy decision for us since we know very little about these structures. Therefore, this note was not just for the unsuccessful bidders to learn from, but also to remind us how and why we made the selection we did make.
Here are the elevations from the construction drawings of the successful bidder.
Dear Sirs,
I appreciate your interest [in our decision process] and it gives me an opportunity to reflect on what has, thus far, been one of the toughest decisions we have had to make in our project (and admittedly still makes me nervous). The decision was especially tough since we received so many viable proposals. While you probably don't really want this much information,
While you don't really want this much information, I am going to document the thought processes that we went through, more for posterity than just for your benefit.
We approached seven companies regarding our project. One of these companies quickly declared "no interest", and they received our sincere thanks for promptly letting us know and not wasting our time or theirs. Another company repeatedly declared interest but never submitted a proposal, thus delaying the whole process. I think if I had not closed the bidding, we would still be waiting for their proposal. This company, while they have an appealing web site, will not be considered for our next project (and there is another one coming). The five other companies, "L", "R", "T", "G" and "S" all offered timely proposals and were responsive to our followup questions. While it made the comparison of proposals more complicated, we were happy and impressed that we had so many.
We evaluated the five proposals, taking into account all the subtle, and not so subtle, variations. This evaluation began with the thoroughness of the proposal itself. At one extreme, we had the proposal from "T" that was very voluminous, showing specifications, typical construction details, options to consider, photos, references, inclusions, exclusions, terms and conditions. It was confusing and far too much information for an initial proposal. On the other extreme was the "L" proposal, which contained not much more than a price. There was not enough information in the "L" proposal to even formulate an initial impression. While this did not eliminate either "T" or "L" from consideration, it was not helpful to their cause.
We had originally specified an all-aluminum construction as our preference. "L" and "R", both stated that they did not have an all-aluminum option. We therefore expanded our request to include a wood option from those who had previously offered all-aluminum. This lengthened the evaluation process a bit, but allowed us to make more of an apple-to-apple comparison.
There was a wide variation regarding the issue of installation. All of the companies proposed delivery of a "knocked down" product, leaving the assembly, glazing and final installation to be accomplished on-site. A couple of proposals, "L" and "S", did not offer any installation option other than that performed or arranged for by the customer, while both promised phone consultation, if needed. The "L" web site left us with the impression that their products are essentially kits and, considered by some to be, DIY projects. On the other extreme, the "R" proposal, stated that the warranty would be voided if installation was done by anyone other than their company craftsmen, under company supervision. "T" offered full installation using company employees, or, if we wanted to use our own local crafts, they would consent to just provide on-site supervision. "G" offered full installation using their employees, but, they also said that "most skilled contractors...can handle the installation with a lick of common sense and no fear of glass". They also offered to provide consultation support via phone, if we opted to use our own crafts.
Cost was, of course, a major consideration. Initially, company "S" was, by far, the lowest cost. They offered an all-aluminum design, as we originally requested. When we asked for a wood option, the "S" proposal essentially matched the price quoted by "L". Compared to "L" and "S", the "G" company proposal was about 50% higher, the "T" company proposal was about 100% higher and the "R" proposal was roughly 250% higher. The "R" company proposal (wood only and company installed) was well beyond our budget. While they offered a beautiful product, "R" was the first proposal to be permanently set aside. As we learned more via interactions with the companies and reviews with our architect and construction manager, the low prices from both "L" and "S" raised some doubts. Our architect also identified some particulars in the construction details, provided by "S", that caused some concern.
Other factors that we took into consideration included estimated delivery times, location, materials, warranty, perceived followup support and the interpersonal chemistry we developed through our interactions with the company, both in one-on-one communications and with their web site.
The competition ultimately boiled down to "G" versus "T". Both offered either wood or aluminum, but we found it impressive that "G" showed the initiative to make a suggestion that they could offer a combination of aluminum and wood. This would capture the look of wood but do so at a lower cost. We also found it interesting that "G" was the only company to request the actual CAD drawings (not just the PDF excerpts I sent out with the RFQ) of the building on which the roof would be installed. They also found the "right" amount of persistence in their followup (without becoming an annoyance) and showed the kind of enthusiasm that led us to finally award them the job.
Our final decision was to go with the "G" all-aluminum product, to be assembled and installed by our local crafts.