The key is bidding the job thoroughly on the front end. The ability to do that properly comes mostly from experience. We’ve done so many projects in the last 100 years that we have a VERY good handle on exactly what a given job is going to entail. We’ll give you a detailed, itemized estimate so you can review it. Usually, the only way the price will go UP is if you (the homeowner) decide to add things mid-job. We strive to work through as many alternatives and options on the front end as possible to minimize your desire to make changes later.