Most plumbers wont mess with the septic tank. We deal mostly with components inside the house. Did you have a vent pipe in the yard (often looks like a candy cane made of PVC) before the repair but not after? If all he did was replace the line it shouldn't cause a smell inside the house. All plumbing fixtures inside the house should have properly functioning traps. Those traps would create and maintain a water seal against the sewer gases. You should have at least one vent through the roof to equalize pressures within the drainage system. This prevents positive pressures within the system (caused by fixtures discharging into the lines, ie toilet flush) from pushing gas out through the traps, and negative pressures (the waste in line will pull air behind it like your finger over the end of a straw) from sucking water out of the traps.
One easy repair is fixing a constantly running motor. If you have a submersible motors (ones that are designed to sit inside the pit or well), this is usually caused by dirt or debris getting lodged under the float switch, which is the large floater bulb that looks very similar to the one in the back of your toilet. Make sure you know how to drain and clean out your sump pit, or have your plumber show you the next time you hire one.
Specialized plumbing tools include pipe wrenches, flaring pliers, pipe vise, pipe bending machine, pipe cutter, dies, and joining tools such as soldering torches and crimp tools. New tools have been developed to help plumbers fix problems more efficiently. For example, plumbers use video cameras for inspections of hidden leaks or problems, they use hydro jets, and high pressure hydraulic pumps connected to steel cables for trench-less sewer line replacement.
"We just moved to a new house and Luke did an amazing job installing our home entertainment system. We thought we had a simple TV mounting project, but Luke was able to connect all our equipment (some of which was a bit outdated) so we have one seamless audio/visual system. Plus he was able to fix some errors that Comcast had made and willing to jump in and work on a few other small projects I needed done before the holidays. His price was reasonable and in the week since he performed the work I've had 2 people knowledgeble in contracting or wiring compliment the quality of his work."
Before starting any work, we study the issue and perform comprehensive inspections to properly diagnose the problem. Once we have pinpointed the source of the issue, we will discuss your options with you. We try to stick to repairs if possible, and avoid recommending replacements unless your system or unit is extremely outdated. By focusing on repairs instead of replacement, you save money and enjoy an improved plumbing unit for many more years to come.