Rellcorp manufactures custom steel risers for manhole, valve box, and utility covers — sized to spec and installed in minutes, not hours. Serving paving contractors and municipalities since 1993.
The band's overlapping joint expands to lock snugly into your existing hole diameter — no recutting on site.
From adjustable steel risers to cast valve covers, every piece is sized to your finish grade before it leaves the shop.
The band expands to lock securely into your existing hole diameter — no recutting required.
Fixed-height steel riser built to standard sanitary and storm manhole cover dimensions.
A lower-profile fixed riser for covers that only need to come up a touch.
Built to standard sanitary and storm sewer cover diameters.
Bring clean-out covers flush with the new surface without disturbing the line below.
Sized to bring water, gas, and irrigation valve box covers up to new pavement grade.
Slim risers for reclaimed water box covers that only need a small lift.
Taller box risers for reclaimed water covers that need a bigger lift to grade.
Cast risers for water valve covers — kept in stock and ready to ship.
Low, flat-framed risers built to standard drainage grate dimensions.
Oversized risers for utility structures beyond a standard manhole or valve box.
Keeps debris out of the drain line without blocking flow.
For the covers that don't fit anything off the shelf — built to your exact structure.
Send us the dimensions of a nonstandard manhole, valve box, or grate cover and we'll fabricate a riser to fit it.
Call (727) 428-4260Built for the job site: every riser starts as A-36 hot-rolled steel or galvanized metal, finished with an industrial primer coat for corrosion protection — two-part epoxy is available for coastal and heavy-exposure sites. Call for exact dimensions and stock availability on any size above.
No excavation equipment, no lane closures for hours — risers go in fast enough to keep a resurfacing crew moving.
We take the existing cover size and the new pavement grade.
Risers are built to match, in steel or cast construction, or pulled from stock.
A crew sets one riser per utility in about five minutes — by hand, no heavy equipment.
The band's joint is expanded and bolted snug to the existing hole before the surface goes down.
Rellcorp has been manufacturing custom steel manhole and valve box risers for more than thirty years, built for the paving contractors and city and county crews who can't afford a slow fix on a live road.
Every riser is sized before it leaves the shop — not eyeballed on site — so a resurfacing crew can raise a utility and keep moving down the road.
Call or email for stock availability, a custom quote, or to place an order for your next resurfacing job.