A new boiler installation can be quite disruptive to your household. First there is the preliminary inspection that will take the installing engineers all over your home and looking at pipes and hardware in places you might not have even known existed before. Then there is the removal of the old equipment which could expose walls and closet at their base levels while the new equipment is hauled in, unboxed, reassembled and installed in your kitchen, bath and who knows where. Sounds like potential for disaster and with the wrong crew in your home it very well can become just that.
Don’t want to take the chance of this scenario playing out in your home, can’t say as I blame you. Your best bet to get a professional and least invasive boiler installation services would be to call the professional engineers at British Gas to handle the boiler installation from start to finish. Their professional boiler installation services have been known to come in, perform a professional boiler installation and leave with the absent home owner never realizing that they were there until they saw the new boiler cupboard.
Now if your home at the time of the installation you will surely notice them, but when the job is completed the mess will be cleaned up, the old pieces hauled away and the carpentry work to shore up the newly installed heating elements will have been done to your satisfaction and all you’ll have to remember them by is the constant hot water and whole house warmth the new boiler produces.