Sometimes (most the time) the cheapest quote is never the right decision… a few points to look out for…
• insurance. (Public liability insurance)
• recommendations, References. Photos are not always as they seem.
• do they have a work uniform? (Believe it or not it makes the tradesmen look more professional)
• sign written van? Public profiles… (Facebook, Instagram, yell, Checkatrade… etc)
•headed quotations with company address and logo?