A friend of mine who fixes race car and custom trailers, I also found out that this place HERE will happily do it as they fix motorbikes which are notoriusly greasy (which is what causes the difficult in weliding headtubes so Im told)
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.