Glass and Aluminium Installation Proposal

You must state the specific wind pressure rating or the Pascals your selected frame and glass combination is engineered to withstand. Reference the structural engineering certificate or local building standards to prove your materials meet these safety benchmarks. This protects you from liability should the site experience extreme weather post-installation.

The proposal should state that shop drawings will be provided for approval only after a deposit is paid and the contract is signed. Including detailed manufacturing drawings beforehand risks having your intellectual property copied and shopped around to cheaper competitors. You should, however, outline the timeline required to produce these drawings once the project is locked in.

Include a dedicated compliance section stating that all glass will be installed in strict accordance with safety standards, specifically highlighting toughened or laminated glass use in high-risk zones. Mention that your team will provide a glazing certificate of compliance upon completion of the installation. You should also state that your installers hold valid safety credentials and that site-specific safety plans can be provided upon request.

Request a non-refundable deposit of 30% to 50% to cover custom material orders and extrusion tooling before any fabrication begins. Structure the remaining balance into progress payments, such as a milestone payment upon delivery of frames to the site and a final payment within seven days of installation completion. This cash flow model prevents your business from funding expensive glass and metal orders upfront out of your own pocket.