Feel strongly about this business? Want to add a review of J M Lockwood Plumbing & Heating Services Waltham Forest? Share your experiences and help build a directory of the best plumbers in Waltham Forest by adding a J M Lockwood Plumbing & Heating Services Waltham Forest review. Do you own the business - J M Lockwood Plumbing & Heating Services Waltham Forest? If so, claim it today! Business owners who claim a business can easily add new tags, photos and update their listing.