You've come to the right place!
My husband and I run our own oven cleaning business, but it is different from other operators' systems.
Of course, it's entirely your choice whether to do D.I.Y. or ring a local professional service. Nevertheless, I believe professional, at least asfaras we are concerned, is best. I'll list the reasons:
Most operators work from vehicle-based soaking tanks. This means your front door open in all weathers (not pleasant in pouring rain, howling gale, snow ...), and obviously unsafe for children and/or pets. Our method is unique - we work right by your oven. Once we're indoors, we stay put until the oven is returned to its fresh, clean best.
The so-called oven cleaning products you buy in the shops are caustic (can burn your oven finish, and possibly you), and not biodegradable. However, our system is biodegradable and non-caustic.
Our works car is all-electric.
Safe for use at properties where there is septic tank drainage.
We are not a franchise, unlike other operators. This means that profits stay in the U.K., and not sent to some unwieldy overseas holding company.
Take your pick but I say professional every time.