"Doing it right the first time" is a term used loosely by a lot of contractors in the industry but a very small percentage actually practice what they preach.
"We use SS1 tack coat to seal the edges" is answer alot of companies will give when asked if they will seal the jonts. SS1 tack coat helps 2 layers of asphalt bond together. It DOES NOT seal joints nor does it prevent water intrusion which is why the asphalt is being repaired in the first place.
One problem many people encounter after using a paving contractor is premature cracking in new pavement patches after one or two winters. Simply put, water seeped in the joints, froze causing the asphalt to heave and crack. Fortunately for our clients this isn't how we do business.
Once the new asphalt is compacted we will route and seal all of the joints with a hot rubberized joint sealer to stop water from penetrating the joints. This also prevents any dirt and debris from lodging itself in and around the joints keeping it intact. Asking contractors the right questions will help you weed out the bad apples and get the job done right the first time. ASK YOUR PAVING CONTRACTOR IF THEY WILL ROUTE & SEAL ALL PATCH WORK!