Rochdale structural building guides.
Professional insights on house extensions, slate roofing maintenance, and planning permissions across Greater Manchester. Written directly by master builders Jon and Coby Glennon.


Built to outlast the mortgage.
Every guide we publish is backed by 25 years of active, hands-on construction experience in Greater Manchester. We don't write generic advice; we share the exact structural standards we enforce on our own active build sites.
From laying solid groundworks in Milnrow to crowning a new slate roof in Littleborough, our father-and-son team ensures master-grade execution that protects your property investment.
Get professional advice.
Receive monthly structural guides, local planning updates, and direct construction insights from Jon and Coby Glennon. No spam, just pure building expertise.
J. Glennon Construction Ltd
Rochdale-rooted master builders. Father-and-son built to outlast the mortgage.
Sitemap
Home
About Us
Services
Gallery
FAQs
Reviews
Rochdale HQ
Jon: 07454688960
Jon.glennon@hotmail.com
Serving Rochdale, Greater Manchester & North West
© 2026 J. Glennon Construction Ltd-Father-and-son built with on-site accountability.
25-year master craftsmanship