If they also sold you the items and installed them (like a shower), you can ask them to rectify the problem, and if they merely supplied the service, you can ask for a refund and have them stop working (e.g., you bought the shower, and they fitted it). If the builder hasn't finished within the allotted time after receiving your letter, you can cancel your contract and say you'll get bids from other companies.
An architect can also aid in contractor selection, project management, and cost control. Your architect should act as your advocate when dealing with contractors and governing bodies; they should have a keen eye for detail and a discerning ear for what you need.
Structural engineers can be hired for an average of £90 an hour or £400 a week. However, some businesses and independent engineers offer their skills for a set price. A few instances of this are as follows: The average cost of a walk-through survey is £225. (not including VAT).
Builders construct, whereas developers develop. A developer buys undeveloped land, secures the required licenses, lays out construction lots, and installs sewers, water and electric lines, streets, and curbs. The builder then builds the house.