Contractors perform important work for millions of homeowners every day. Home improvement projects are complicated undertakings, and the experience of skilled contractors can ensure jobs are completed on time and within homeowners’ budgets.

Homeowners have undoubtedly heard horror stories from neighbors about projects that have gone awry. Projects can go sideways for a number of reasons, but a skilled contractor can help homeowners navigate such situations successfully. That underscores how important it can be to find the right professional for the job. The following are some tips homeowners can consider as they look to hire a contractor.

Identify which professional you need. Some contractors are of the jack-of-all-trades variety, but many specialize in a particular line of work. It’s important that homeowners identify which type of contractor they should work with prior to starting a project. This requires homeowners to define the goal of the project (i.e., new wood floor installation), which can serve as a springboard into finding the right type of contractor.

Prioritize building safety. Safety should be the utmost priority for homeowners and contractors alike. Prior to hiring a contractor, homeowners should identify any safety restrictions that might be enforced by local governments and take note of all the permits necessary to get a job done. Homeowners can then discuss those restrictions and permits as they interview contractors. Projects that do not adhere to code are illegal and can compromise homeowners’ ability to sell their homes in the future. So it’s vital to work with contractors who are familiar with local codes and aware of which permits are necessary to ensure a project can go forward.

Insist on written estimates. Handshake agreements offer no protection to homeowners or contractors, so estimates indicating what will be done and how much the project will cost should be provided. Homeowners should insist on receiving written estimates and interpret an unwillingness to provide one as a significant red flag.

Know your rights. Laws vary by region, but in general homeowners have a right to a written contract and contractors are obligated to provide a copy of that contract signed by both parties. That contract must be provided prior to the start of the project. The contract should provide a detailed account of the work that will be done, as well as a timeline indicating important dates that components of the project will begin and be completed. The contract also should detail materials and who is providing them. Details regarding payments, guarantees and warranties also should be cited.

Do not pay in cash. Some contractors may suggest that the project will cost less if they’re paid in cash. However, home improvements should never be cash transactions. Cash does not indicate proof of payment, which can be problematic if a dispute arises.

Contractors help homeowners turn dream projects into reality. Homeowners can employ various strategies to ensure they find the right professional for their home improvement project.