Is this quote fair?

ttnguyen

Hi, 
I have 3 quote to compare which there might be light different in between. 

1. supply and fit water proof layer to asphalt box gutter (15kg) . seal corner where render meets brickwork which shows signs or deterioration and to rake out and point area which shows cracks by roof edge (total 400£)

2. fix solid edge tiles to stop making nose in the wind . fix any missing or broken slates .To fill gaps in ridge tiles to stop water ingress. clean and seal lead with aqua seal.  (£1200)

3. Primer all identify areas. Apply torch on felt to both ends of both gutter-covering and existing gap/cracks. seal lead above identify area, seal corner above window, sealing all gap between rudge tiles with waterpoof lead sealant, identify defective slates and remove then replace defective slates (£1150)

many thanks for all the advice. Im in south east london area.