Feel strongly about this business? Want to add a review of O2 Plumbing & Heating Service Ltd Watford? Contribute to the directory of recommended gas engineers in Watford by submitting a O2 Plumbing & Heating Service Ltd Watford review. Do you own the business - O2 Plumbing & Heating Service Ltd Watford? If so, claim it today! This will allow you to amend your details and improve your listing.