Here is a list of things you should verify and check with your contractor:

License

• Is the contractor licensed in the catagory of work you are requesting?
• Verify that the license is still current and in good standing.
• Verify that the holder of the license legally qualifies the company you are hiring.

Insurance

• Does the contractor have liability and workers compensation insurance?

Experience

• Does the contractor have at least 5 years experience replacing windows and doors in South Florida?

Installation

• Ask if all of the contractor's installers are employees or subcontractors.
• If they use subcontractors be sure to get proof that the subcontractors are all licensed and fully insured.
• Be sure you are hiring them to do a complete installation so that you won't need someone else to finish any details such as stucco or drywall repair.
• Be sure that the window replacement will include replacement of any rotted wood.
• Find out their policy about replacement of broken window sills.

References

• Can the contractor provide the name, phone number, and addresses of their most recent past customers. References from from a window installation company will show the type of work and customer service they provide.
• Does the contractor's written contract detail every aspect of the installation.
• Be sure to check that the contractor’s license number is printed on the contract that you are asked to sign.
• Make sure the installation contract explains when payments are due.

Other Important Topics of Discussion For Your Installation Professional.

• Check to see if the contractor is an authorized dealer for the products that are to be installed.
• Be sure that everything is done with a permit.
• How much does the contractor charge for permitting?
• Verify that the name of the contractor you hired is the same as the contractor named on the permit.
• When the installation is completed be sure that the contractor will schedule the final permit inspection with the city.
• Before you sign a contract find out about the warranties on the products and the installation work.
• Be sure to find out how long the warranties will continue to be in effect.
• It is best to find a contractor that will also service the products they install.
• How long has the contractor been in business?
• Be sure that there is a written contract that outlines all of the details of the work to be done