If your roof only leaks during winter months, I doubt anything wrong with it.
After a full inspection of the attic insulation, assessed significance of the intake Soffit as well as the exhaust roof ventilation, we have determined that roof shingles are in good working order.
Having heat loss due to poor Insulation dept in the attic in most cases why the roof seems to leak. Before spending thousands on a new roof, have a professional evaluation to identify permanent solutions.
Also having poor ventilation in the attic is another no brainer. Stop spending thousands and address the source of all the problems. Bandaid can only last for a short period of time.
Send us an email or contact us by phone to have a free consultation.