Could Early Help support me with this? Looking for advice

[onasnowyday]

To briefly outline my situation, I'm a single mum to a 9 year old DS.
My issue is an ongoing struggle with his grandad constantly disrespecting me and my boundaries/parenting choices, in my DS's presence. Grandad talks to me like I'm a naughty child rather than the mature, responsible, 40 something woman I am.
He's constantly trying to dismiss my wishes regarding my child and rather than do this in a polite or well-intentioned way (out of child's earshot), he simply starts arguments, saying things like I "need" to give him good reasons for my parenting choices/decisions, otherwise he will ignore them whilst DS is in his house.
Most recent are my wishes not to allow my child energy drinks and I also don't feed my child pork. These wishes are respected by all other family members and people DS is in contact with but, being a bombastic idiot, his grandad considers it his place to trample over this and give these things to my child.
My child is obviously young and impressionable, he just laughs and says "well grandad lets me do this or eat that..". Grandad's behavior is giving the impression to my DS that there's no need to listen to me, Mummy knows nothing and grandad is right kind of mentality.
I've told his grandad till I'm blue in the face over the last several years that I'M the parent and that I'd rather he stops disrespecting me and attacks my decisions in front of my child.
I want someone professional and objective to speak with me about these concerns and possibly communicate them to grandad, as he clearly doesn't listen to me or respect me enough to even acknowledge the damage he's doing.
Is this something Early Help could help with?

I think Early Help would just tell you to limit his contact with his grandad.

Is this your dad or the father's dad? What's the family set up?

If your son isn't there unsupervised by you then there is no opportunity for him to have energy drinks.

If you are using the grandad for child care then you need to sort out an alternative.

Early Help generally advise on parenting techniques, parenting courses etc. I don't think they'd speak to a grandparent. You might still find them helpful to talk to though if you need support and someone to talk to.

I mean it’s worth asking, sure. But it sounds like he/you would be better off without having a relationship with this grandad. That’s what they will advise. It sounds like you need support with having some boundaries for yourself. You might ask what help is out there. Even the Freedom programme may be appropriate. It sounds like an abusive and unhealthy relationship even though not a romantic one.